Economic consideration of the development and use of chatbots - an A/B test

Type: Bachelor-Thesis
Student: Teresa Camille Michels
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 19

Description:

Chatbots are currently a trend topic. On many websites it is possible to obtain information about products or services via chatbots. In addition to general-purpose bots, such as Siri, Alexa or Cortana, highly specialized chat bots are already in use, for example in first-level customer support. The general interest in such natural-language user interfaces (Conversational UI) is now supported by a variety of tools, frameworks and services that are designed to simplify the creation of chatbots. Commercial offers, such as Microsoft's Bot Framework and LUIS.AI, Facebook's WIT.ai, IBM's Watson or Google's Dialogflow, can be distinguished from Open Source Frameworks, such as BotConnector, Rasa Stack or VOnDA. Choosing an adequate framework for the development of a chatbot includes technical and business issues in the context of a cost-benefit analysis. The aim of this thesis was a cost-benefit analysis of the development of a chatbot in the form of an A/B test. The manipulative factor here was the commercial framework or open source framework used for the development. To answer the research hypothesis: (H1) The cost-benefit ratio is better for commercially developed chatbots than for chatbots developed using open source frameworks; an empirical-quantitative A/B text was conducted in a laboratory setting with (n = 57) test persons and combined with qualitative interview results. For the A/B test, a chatbot was used to provide information on the website of a chair that had been developed with (a) a commercial framework (Google Dialogflow) and (b) an open source framework (VOnDA). Both chatbots were based on an identical dialogue corpus. To evaluate the costs, development effort, complexity, maintainability etc. were included. The validation of the utility took place in a laboratory experiment at the Chair of Information and Service Systems (ISS) at Saarland University. The test persons (n=57) were divided into control and experimental group, each interacted with one variant of the chatbot and then evaluated with regard to usability, naturalness of the dialogue and their intention of use. According to motivation and objectives, the theoretical foundations of chatbots, cost-benefit analysis and A-B-test are defined in terms of central concepts. Chapters 3 and 4 include a literature review on the development of chatbots as well as existing work that empirically examines the influence of external parameters such as the choice of development framework on the development of chatbots. After Chapter 5 explains the research methodology with study design, data collection and analysis, the following chapter discusses the results of the study against the background of the research hypothesis. Then implications are derived and the work is concluded with limitations and an outlook

Contact person for this topic is Sabine Janzen

Towards Self-decribing Data Products

Type: Bachelor-Thesis
Student: Natalie Gdanitz
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 19

Description:

Today, the collection, storage and refinement of data is a major issue in all economic sectors. And yet the data already collected in masses in pre-production, production, distribution and trade have so far only been tools for the purpose. In the course of a digital transformation, data also has the potential to become a data product itself with additional opportunities for exploitation. In order to aggregate, refine and trade such data products on a digital market, digital representations of data products are needed which accompany and describe them per se on a meta-level. The aim of this thesis was to propose a conceptual specification of a self-describing data product and to represent it technically in a suitable form. Key issues in this context were: Which approaches and models for the description of data products and related concepts such as digital products are suitable in the context of the work? Which representation languages enable the realization of self-describing data products? After introduction and motivation, chapter 2 presents concepts such as Information Objects, Knowledge Content Objects etc. in the context of a literature analysis, which are related to data products. In chapter 3, the main part of the thesis, a model for the specification of self-describing data products is presented and possible forms of representation are explained. Subsequently, the proposed conceptual model is instantiated in an exemplary representation of a data product. Finally, the results of the thesis are summarized and pending research questions are discussed.

Contact person for this topic is Sabine Janzen

Automated Learning of User Preferences for Selection of High-Quality 3D Designs

Type: Bachelor-Thesis
Student: Ambrose Kaserebe
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prashant Bhat
Edit time: SS 19

Description:

3D object design is one of the most sought-after topics due to its application in many domains including Medical imaging, Virtual Reality, Computer Graphics, Animation etc. For the manual design, quite a few softwares such as Blender, Maya, FreeCAD are available at the designer’s disposal. These softwares provide tools for aiding design process and platform for seamless sharing of end designs. there is an overwhelming need to speed up design process to cater to ever growing demand from aforementioned fields. However, manual 3D design is intrinsically labor dependent, time consuming task and alone cannot address growing demand. Several techniques such as GAN (Generative Adversarial Nets), SFM (Structure from Motion) and MVS (Multi-View Stereo) are employed to automate 3D design. 3D-GAN is one such method that allows the fully automated design of 3D designs using deep neural networks. However, such generated 3D designs often suffer from distortions, obscure/ missing parts, and other artefacts. Through this thesis, the author implements a machine learning powered automatic user preference simulator to segregate good 3D designs from bad 3D designs. The author starts off with an exhaustive literature survey on automated 3D design (a.k.a 3D reconstruction), conducts a user survey to gauge user preferences in selecting good 3D designs and finally designs a machine learning pipeline that can simulate user preferences in selection of high-quality 3D designs.

Contact person for this topic is Prashant Shivaram Bhat

Recommendation systems in stationary trade - A literature review

Type: Bachelor-Thesis
Student: Ruth Mandeko
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Nurten Öksüz
Edit time: SS 19

Description:

Trade is going through an exciting time. In recent years, significant structural changes in the retail landscape have become apparent, particularly marked by the spread of new technologies. In this dynamic environment, stationary trade is forced to reorient itself and rethink its value creation. For quite some time it has become possible in stationary trade to order goods and products online via terminals if these are not available in the store itself. In addition, recommendation systems can also be used in stationary trade to create product advertising and individually tailored offers for customers. The aim of this thesis is to examine the topic "recommendation systems in stationary trade". Within the scope of this thesis, the basics as well as the procedure of literature research will be addressed first. In a next step the results of the literature research are presented. Here, the focus is on the integration of recommendation systems on mobile devices. In a further chapter the author presents the results and outlines challenges for stationary retail. Afterwards, an outlook is given in order to come to a final conclusion.

Contact person for this topic is Nurten Öksüz

Legal aspects of chatbots in companies

Type: Bachelor-Thesis
Student: Frederike Kunz
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Hannah Stein
Edit time: SS 19

Description:

Chatbots are computer programs that are able to conduct conversations with human users, for example using Natural Language Processing (NLP) - usually via the Internet. Companies such as Deutsche Telekom or Lufthansa are already testing the use of chatbots. This is because they have the potential to save large amounts of money and change customer communication fundamentally. However, chatbots confront brands and companies with completely new challenges. In order to make chatbots more human, machine learning (ML) methods are being increasingly used. Since this is partly unsupervised learning, in which the chatbot also makes its own decisions, extensive legal questions arise in addition to technical issues. The aim of this thesis was an analysis of legal aspects regarding the use of chatbots. In companies these are used especially for external communication with customers. Different legal problems resulting from this were to be examined within the scope of this thesis. After motivation and approach the author describes the theoretical frame of reference of the topic and defines extensively the terms "Big Data", "Artificial Intelligence" and "Chatbots". She then goes into the conception of chatbots and differentiates between rule-based and self-learning chatbots. After deriving the relevance of chatbots for companies, the author introduces the possible application areas such as Sales, Marketing, Customer Service, as well as various internal application possibilities. This is followed by a description of technical challenges and a more comprehensive description of legal challenges when using chatbots in companies. Thereby the author addresses contract law, consumer protection, liability and data protection. The work is brought to an end in the last chapter with a conclusion.

Contact person for this topic is Hannah Stein

Situational motivation as a determinant of the sporting performance and motivation of children

Type: Master-Thesis
Student: Barbara Müller
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: WS18/19

Description:

Nowadays, children and young people in particular are affected by the phenomenon of physical inactivity, which leads to health risks, psychomotor disorders and obesity. This thesis investigates the influence of the concept of situational motivation in sports. Situational motivation is the motivation that individuals experience when performing a certain activity in a concrete situation and which makes it possible to promote the pleasure of movement and sport in general through positive feelings. The aim of the thesis was the specification of a concept for measuring the willingness to perform and physical performance in order to determine the additional value of situational motivation in a concrete sport-related situation. To answer the two research hypotheses: (H1) Physical performance is better when situational motivation is higher; and (H2) Willingness to perform is higher when situational motivation is higher; an explanatory, quantitative laboratory study was conducted in a real setting (school gymnasium) with (n = 32) students of the 10th grade of a common school. The participants were divided into two groups according to their class affiliation - a control group without monetary reward (n = 16) and an experimental group with monetary reward (n = 16). The quasi-experiment comprised three phases: (1) Collection of demographic and sports-related data; (2) Execution of a 6-minute run with heart rate data collected with chest straps and smart phones using the PathMate2 app and (3) measurement of anthropometric data. According to motivation and objectives, the theoretical foundations of intrinsic and extrinsic motivation as well as basic concepts in the context of physical activity, athletic performance and motivation are defined in terms of central concepts. Chapter 3 includes a literature review of existing work that empirically investigates the influence of extrinsic incentives on performance and motivation during physical activity. After Chapter 4 explains the research methodology with study design, data collection and analysis, the following chapter discusses the results of the study against the background of both research hypotheses. Implications are then derived and the work is concluded with limitations and an outlook.

Contact person for this topic is Nurten Öksüz

Literature Review: Approaches for monetary valuation of data products

Type: Bachelor-Thesis
Student: Julia Klasen
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Hannah Stein
Edit time: WS 18/19

Description:

We live in a time of digitalization and automation where the Big Data phenomenon is becoming more and more important. For companies, the need to value a wide variety of data in order to remain competitive is constantly increasing. "The ability to generate competitive advantages through data analysis is becoming a decisive success factor for many companies" (Bachmann, Kemper & Gerzer (2014), p. 48). The conscious handling of data and investment in data products is crucial for this purpose. It is therefore essential to assign a monetary value to data products both in order to make investment decisions and to present the company value realistically in the balance sheet. A comprehensive literature review has shown that some methods of determining a value for intangible assets in general have already been developed, but that they are fraught with many problems in application. Now it has to be clarified whether, how and under which conditions these methods can be applied to data products in particular. Examples show that it is quite possible to determine a value for data products taking uncertainties into account, even if there is still no generally applicable standard for this.

Contact person for this topic is Hannah Stein

Self-adaptive services - A literature review

Type: Bachelor-Thesis
Student: Max Mees
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Hannah Stein
Edit time: WS 18/19

Description:

Self-adaptive services are a form of smart services that adapt themselves to changing conditions, e.g. changes in user preferences, adaptation of policies, new environmental influences.

Due to the new field of research, a literature review of existing self-adaptive services and concepts for self-adaptive services should be conducted. Important questions in this context were e.g. What are self-adaptive services? Which foundations do the services need to be implemented? How is a self-adaptive service created? How can self-adaptive services create an economic added value?

The introduction describes the development of smart services towards self-adaptive services. Chapter 2 includes an overview of the basics of data acquisition, networking and analysis with a comprehensive overview of current IT technologies. Then, in Chapter 3, the implementation of resulting self-adaptive services is discussed and economic added value created through the use of self-adaptive services is specified.

Contact person for this topic is Hannah Stein

Use of digital education systems in companies

Type: Bachelor-Thesis
Student: Tobias Prietzel
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: SoSe 2018

Description:

The aim of the thesis was the presentation and analysis of the use of digital education systems in SMEs. The main questions in this context were: To what extent are digital education systems already in use in initial and continuing education and training or are they planned to be implemented in the near future? What experiences have SMEs already had with digital education systems and where do they see problems with the introduction of digital education systems? How do large companies differ from SMEs with regard to the use of digital education systems? After the introduction, which explains the initial situation including the problem definition, the current state of research and the structure of the thesis, a basic chapter follows, in which the terms e-learning and blended learning are defined. Subsequently, different forms of digital education systems, including computer and web-based training systems as well as learning content management systems are described. In the following chapter, digital forms of learning are explained, which show how the individual digital education systems can be designed. Thereby, Wikis, webinars, social learning and serious games, for example, are examined in more detail. Chapter 5 focuses on the introduction of digital education systems. Here the necessary steps for the introduction of a digital education system are explained using a circular flow model by Kleinfeld and Kutzbach (2015). Chapter 6 describes the structure of the survey and the interview, evaluates the results and compares the results of SMEs and large companies. The thesis ends with a conclusion in chapter 7.

Contact person for this topic is Barbara Müller

Study on the use of AI technologies in companies

Type: Bachelor-Thesis
Student: Linus Halberstadt
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Mirco Pyrtek
Edit time: WS 17/18

Description:

Due to the growing popularity of AI-based algorithms and systems, new possibilities and approaches for companies to use them to their advantage are constantly emerging. Besides possible potentials, obstacles and high demands on systems, infrastructure and competences of the employees play a role, which can complicate the use of AI systems. The question of integrating AI technologies into different business areas such as marketing, personnel planning, etc. in order to use potentials does not only arise for the drivers of these technologies or the industry market leaders or established large companies. Especially young companies, which are in a very early stage of development and are not yet established on the market, can profit significantly from these technologies. The aim of this thesis is to analyse and evaluate the use of AI technologies especially in these young companies, the so-called start-up companies. To pursue this objective meaningfully, two research questions were defined at the beginning of the work. The first research question deals with the current status and future potential of AI systems in start-up companies. The second question then examines the motives and obstacles for start-up companies, which play a central role in the investment strategy in such technologies. First, a primary study was carried out with the help of a designed questionnaire, which is based on the questions of three similar studies that have already been conducted and evaluated in large companies. The questions of the designed study were passed on to a total of 15 start-up companies from different industries and answered concretely there. Excluded were companies that are themselves involved in the development of AI technologies. Furthermore, it was not specified which person should be used to answer the questions for each company in order to obtain an indirect assessment of responsibilities with regard to the use of AI.

Contact person for this topic is Mirco Pyrtek

Data Analytics on the Edge – Application of data scientific methods in web applications

Type: Bachelor-Thesis
Student: Josef Hampp
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Nurten Öksüz
Edit time: SoSe 2018

Description:

Artificial intelligence and machine learning have gained momentum in recent years and have become innovative drivers in information technology. Deep learning and the use of artificial neural networks are gaining in popularity as part of machine learning. In addition, decentralized data processing is increasingly coming into focus. The aim of the thesis is the development of a web application, which is to serve for the classification of empirically collected data with the help of artificial neural networks. The edge computing approach will be the basis for this. After motivation, objective and explanation of the structure of the thesis, the author addresses the theoretical foundations. In particular, the terms "artificial intelligence", "machine learning" and "deep learning" are distinguished and the structure and functionality of artificial neural networks are explained. After an introduction to the topic "Edge Computing" the development of the web application is documented in chapter 3. Subsequently, based on a case study or a practical example from the field of breast cancer screening, a classification algorithm using a neural network based on health data of several patients is trained directly within the web application and used to predict unknown data without having to transfer the sensitive patient data via an internet connection to a central server for analysis. In the last step, a conclusion and outlook on the solved problem is given.

Contact person for this topic is Nurten Öksüz

Market analysis for speech recognition services

Type: Bachelor-Thesis
Student: Matthias Patric Zingraf
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Nurten Ösüz
Edit time: SoSe 2018

Description:

Digitisation has radically changed many aspects of human life. In recent years, the technology of speech recognition in particular has gained attention. Especially the use of apps contributes to a rapid advance of digitalization. Also in the field of health care, the use of mobile apps is constantly increasing. Particularly the development of apps designed for children is a challenge. The aim of this thesis was to conduct a market analysis regarding speech recognition services. Essential questions in this context were: Which speech recognition services already exist and which companies are active on the market? Which development can be observed in the field of speech recognition services? After motivation, objective and explanation of the structure of the work, the author examines the term "speech recognition services" and tries to put it into its specific context. Subsequently, the thesis first addresses the fields of application. In chapter 4 the different providers are introduced. After considering and analyzing existing speech assistance services, the author compares the speech recognition services presented in chapter 4 and derives implications. In chapter 6, the results are summarized once again, in order to draw a conclusion in the last step and give a short outlook.

Contact person for this topic is Nurten Öksüz

Market analysis for FinTech services

Type: Bachelor-Thesis
Student: Jennifer Pitek
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: SoSe 2018

Description:

The aim of the thesis was the analysis of the current developments of Fintech services and the preparation of a market forecast in this domain. Besides the analysis of the current market situation, current fintech services are described and classified. Important questions are amongst others: What are the current market conditions for Fintech services in Germany and in which areas are Fintech services already operating? How well known are these fintech services and how often are they used? After an introductory introduction to the topic, objectives and an explanation of the structure of the work, the author defines the conceptual basis. Within this definitional distinction, the Fintech term is examined more closely and the historical development of these services is explained. Subsequently, the current market conditions are analysed and a classification of Fintech services is carried out. In the course of the market analysis the segments financing, asset management, payment transactions and other Fin-techs are considered. For each segment, currently existing Fintech companies are named and, in addition to the analysis of the entire market segment, selected companies are discussed in more detail. The market analysis is concluded with the obstacles and limitations. In the following chapter the market prognoses are made. Furthermore, the relevance of traditional banks is considered and the challenges for them, which arise due to the developments on the Fintech market, are explained. Afterwards the work is brought to an end with a conclusion.

Contact person for this topic is Barbara Müller

FinTech: Analysis of business models

Type: Bachelor-Thesis
Student: Björn Steinmetz
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: SoSe 2018

Description:

The aim of the thesis was the presentation and analysis of business models of the FinTech industry. Important questions in this context were among others: In which segments can the FinTech industry be subdivided and which business models can be found in the individual segments? How does the value creation process work in FinTech companies and what is the added value for the customers? How do the business models of FinTech companies differ from those of traditional banks and do FinTechs pursue complementary goals compared to traditional banks? After motivation, objective and explanation of the structure of the work, the meaning of the term "FinTech" is defined and the FinTech sector is divided into four major segments: wealth management, crowdfunding, payment transactions and other FinTechs. This is followed by a detailed description of sub-categories of the four segments. Chapter 3 compares different definitions of the term "business model" and describes the Business Model Canvas, which is used in the following chapter to analyse the business models in the FinTech industry. The approach is explained and then the segments Corwdin-vesting, Social Trading, Blockchain and Crypto Currency as well as InsurTechs are discussed. Furthermore, a comparison is made in chapter 4, which compares the objectives of FinTechs with those of traditional banks. In addition, the value creation of FinTechs is examined in more detail. Chapter 5 closes with a conclusion and an outlook into the future.

Contact person for this topic is Barbara Müller

Industry 4.0: Analysis of business models

Type: Bachelor-Thesis
Student: Maximilian Zagarinskas
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Nurten Öksüz
Edit time: SoSe 2018

Description:

Innovative ability and speed of implementation are core competencies that will secure future prosperity for our society because they create real and sustainable value. In this context, the topic of Industry 4.0 and its potential is of equal concern to industry and research. On the one hand, the intelligent networking and interaction of mechanical engineering, electrical engineering and information technology opens up completely new possibilities for optimization, such as increasing the productivity of entire value chains. There are already numerous implementations in individual companies, large ongoing research initiatives across all participating sectors, and many events that spread the application potential of the Industry 4.0 philosophy. On the other hand, there are also opportunities for radical innovations in business models. Under the framework conditions of Industry 4.0, companies can offer their products in a completely new way or generate additional customer benefits through value-added services over the product life cycle. The growing networking resulting from the increasingly mobile Internet is also putting pressure on companies, which is being increased by competition on the one hand and by customers on the other. In order to ensure sustainable success and growth, it is crucial to adapt business models in good time. In this thesis, the term "Industry 4.0" and the history of its development will be discussed first. In a next step, business model innovations are discussed and necessary requirements for the introduction of Industry 4.0 are explained. In Chapter 3, previous business models in the area of Industry 4.0 are analysed and compared with practical examples, in order to then provide an outlook and draw a conclusion.

Contact person for this topic is Nurten Öksüz

A Market Survey about Smart Home Technologies

Type: Bachelor-Thesis
Student: Elisa Nothof
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Ralf Bleymehl
Edit time: WS 17/18

Description:

The aim of the bachelor thesis was a empirical study which helped to research how the population in Germany deals with smart home technologies and in which areas they apply. Relevant issues in this context are inter alia: What does smart home mean in general? Which functions does a smart home offer? How does the current market situation look for the smart home sector? Which group of persons are adressed by the different smart home components? After motivation, aim and the explanation of the structure of the thesis, the author defines the term of smart home and she explains the general functioning plus existing components and the functions of a smart home. Furthermore she presents potential advantages and disadvantages of a smart home. In chapter three the author introduces providers of smart home technologies and its functionalities offered are reported. Afterwards the market study begins in chapter four. At first the topic of the study is indicated as well as a prediction of the results based on past studies. After further informations about the evaluation, the study results are presented and analyzed. For a start general and personal details are provided which refers increasingly to the range of smart home. In chapter five the author draws some closing conclusions and she provides an outlook.

Contact person for this topic is Ralf Bleymehl

The Application of Deep Learning Technologies in Enterprises: Status and Outlook

Type: Bachelor-Thesis
Student: Alexander Wobedo
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Nurten Ösüz
Edit time: WS 17/18

Description:

The growing popularity of machine learning algorithms led to a expanded technical application and availability for enterprises. Especially deep learning with his neuronal nets gains importance in the artificial intelligence technologie for some time past. The aim of the bachelor thesis was to analyze the application of deep learning technologies in enterprises. Its focus is on the current status and the prospects for the future. Relevant issues in this context are inter alia: How are the deep learning technologies deployed in enterprises and which advantages arise from that? Which implications for companies can be derived? After motivation, aim and the explanation of the structure of the thesis, the author contemplates the term deep learning and tries to classify it into the subject-specific context. In connection with this, the different deep learning technologies are presented. As a second step the author goes into the field of application of deep learning technologies. Chapter six deals with the current development. In this connection for one thing a market analysis is carried out and for another the challenges are mentioned. In a final step under the point „disruption“ it is explained which socioeconomics changes go hand in hand with the use of deep learning technologies to summarize afterwards and provide an outlook.

Contact person for this topic is Nurten Öksüz

Digital Technologies to support the Operational Health Management

Type: Bachelor-Thesis
Student: Sabrina Mailänder
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: WS 17/18

Description:

The aim of the bachelor thesis was the presentation and analysis of the digital technologies of the operational health management. Relevant issues in this context are inter alia: What do digital technologies of the operational health management mean in general and how can they be used productively in companies? Which digital technologies are used within the scope of health management and what role does the operational health management play in times of industry 4.0? After motivation, aim and the explanation of the structure of the thesis the author defines the term „digital technologies“ and „operational health management“, she explains the general tasks of digital technologies and presents the actors of the operational health management. In chapter three she discusses the areas of application and possible digital technologies of the operational health management. Following in chapter four the chances and risks, costs and benefits as well as the targets of the operational health management are clarified. Chapter five includes a comparison of the methods of the operational health mangements at the Federal State and institution level. The results in the form of a critical analysis of digital technologies in operational health management are collected in chapter six. After this the author draws some closing conclusions and she provides an outlook for the future.

Contact person for this topic is Barbara Müller

Acceptance of Smart Homes: An Empirical Study of Reasons for Restraint in Common Aspects of Intelligent Environments

Type: Bachelor-Thesis
Student: Lorena Ullrich
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Ralf Bleymehl
Edit time: SoSe 2017

Description:

The aim of the bachelor thesis was a empirical study which helped to investigate the low adoption rate of smart home technologies in Germany. Relevant issues in this context are inter alia: What does smart home mean in general? Which functions does a smart home offer? How does the current market situation look for the smart home sector? Which specific product properties affect on the adoption rate of a smart home? After motivation, aim and the explanation of the structure of the thesis the author defines the term smart home and she explains the general functioning as well as its services. Following in chapter three she studies the current market situation. Here the topical smart home products and services are investigated more detailed. Furthermore she mentions the key market indicators such as the market penetration in USA, China and Germany. The fourth chapter deals thematically with the adoption status of smart home technologies. As part of this literature analysis in the smart home sector the adoption rate of smart home for Germany and the USA are ranked according to the adoption curve by Rogers. Also the part of the early user is described and the design of the considered study is critized too. Based on the findings in chapter four, the author conceives and conducts her own study on adoption inhibition. After an overview of the study set-up and the study results, the findings are interpreted. The fifth chapter is finished with a criticism of her own study design. The bachelor thesis is concluded with a result in chapter six.

Contact person for this topic is Ralf Bleymehl

Case Study on Life in Smart Home Surroundings

Type: Bachelor-Thesis
Student: Hannah Stein
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Ralf Bleymehl
Edit time: SoSe 2017

Description:

The aim of the bachelor thesis was a evaluation of the concept of situation-related dialogues by means of a qualitative user study as well as a qualitative online study. Relevant issues in this context are inter alia: Are the instigated dialogues of the system useful? It is possible on the basis of the SqUISH approach to support qualitatively the user in his daily operations? Where do gaps exist in the present system? After introductory motivation, objective and the arising questions, the author describes the state of research in the smart home sector in chapter two. At this, current systems like Google Home or Amazon Echo are regarded in greater detail and they are compared with the SqUISH- System. Afterwards the author investigates different research methods relating to user studies in chapter three. She distinguishes here between qualitative and quantitative methods. Case studies and Narrative Inquiry as a example for qualitative methods and written survey and experiments as a examlple for the quantitative research methods. In the following fourth chapter the author deals with the structure of the two studies. At this it is explained first how the user study is structured and how the developed system functions. After that she explains the structure of the online study. In chapter five the results of the study are evaluated. On this occasion the author conducts an interview with the test person to analyse the user study. In the quantitative online study the sample size is presented at first. Following the audited scenario is analysed. The author concludes the thesis in chapter six with a discussion consisting of a delimitation of the paper, a merger of the results plus the implications for the system evolution.

Contact person for this topic is Ralf Bleymehl

Access Control for Web Apps to Mobile NoSQL – Databases in Serverless Architectures

Type: Bachelor-Thesis
Student: Mirco Pyrtek
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 16/17

Description:

The aim of the thesis was the development of an architecture for local data storage in browsers, which can be used by web apps with access rights. This makes it possible to exchange data between Web Apps in the browser in a controlled manner. The author was asked to develop an architecture model and implement it exemplarily. Since this is new territory, the work is to be regarded as a feasibility study. Accordingly, the work is done in the following steps: 1. analysis of the literature and software landscape, 2. development of a logical architecture model, 3. development of a technical architecture, 4. exemplary realization and 5. evaluation of the realization and outlook. The author has moved along this methodical description in his work. After a motivation in chapter 1, numerous facets of technical basics are presented in chapter 2. The development of the logical and technical architecture model and the exemplary realization are summarized in chapter 4. Subchapter 4.3 can be regarded as the core of the work, in which the logical and technical architecture are presented together. In chapter 5 the architectures are evaluated against the background of the realization. In addition, there is an outlook on extensions. The questions of the technical security of the architecture are also dealt with intensively and concrete proposals for solutions are presented. Chapter 6 contains a short summary.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Artificial Intelligence in Smart Services - Empirical investigation of the future entrepreneurial use of artificial intelligence methods in innovative services

Type: Bachelor-Thesis
Student: Michelle Sträßer
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 16/17

Description:

The aim of the thesis was to empirically investigate how companies think about artificial intelligence in general and smart services in particular. The author divided her thesis into six parts. In the introductory chapter she gives a short introduction to the topic of artificial intelligence and the structure of the paper. In chapter 2 five major topics are presented. In chapter 3 the concept of artificial intelligence is introduced. Chapter 4 gives a comprehensive introduction to the concept of Smart Services with an in-depth look at the economic sectors of production and retail. Chapter 5 presents the empirical study, which can be considered the core of the work. Chapter 6 gives a final conclusion.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Cognitive Computing in the corporate context

Type: Bachelor-Thesis
Student: Sven Lauk
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: SoSe 2017

Description:

The aim of the thesis was to analyze the role of cognitive computing in the corporate context. Key issues in this context were: What is generally understood by Cognitive Computing and to what extent can Cognitive Computing be used productively in a company? In which industries is Cognitive Computing already used and how could its use develop in the future? What role does Cognitive Computing play in times of Industry 4.0 and Big Data? After motivation, objectives and an explanation of the structure of the work, the term "Cognitive Computing" is explained and the general historical development of artificial intelligence is explained. Subsequently, the 4th chapter illustrates the relevance of the topic of Cognitive Computing in times of Industry 4.0 and Big Data on the basis of current developments. Chapter 5 deals with the main topic of the thesis "Cognitive Computing in the corporate context" and contains examples of cognitive systems already used in companies. In this context, IBM Watson and SAP HANA are especially examined in detail. Also, current examples of use are collected by industry and the advantages and disadvantages that cognitive computing offers to companies are listed. Subsequently, a short outlook into the future is given and the work is completed with a conclusion.

Contact person for this topic is Barbara Müller

Legal conditions for the exchange of patient data between Switzerland and Germany as part of the PathMate project

Type: Bachelor-Thesis
Student: Stephanie Risto
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Nurten Ösüz
Edit time: SoSe 2017

Description:

The importance of data protection is constantly increasing in the age of progressive digitalisation and society-changing technologies. Although this progress leads to the creation of new possibilities for data collection and processing, it also involves many risks of misuse of personal data. The increasing globalisation and the associated everyday occurrence of cross-border data flows increase the risk of privacy violations for persons whose data is transferred. This thesis deals with the prevalent data exchange on a supranational level within the PathMate2 project. Due to the fact that patient data is exchanged and processed across borders between Switzerland and Germany, the following relevant research questions arise: How does data transfer between Switzerland and Germany affect the PathMate2 project? To what extent do the Federal Data Protection Act (BDSG) and the Swiss Data Protection Act (DSG) overlap? What are the general implications for cross-border projects collecting and processing sensitive patient data?
After an introduction to the historical origins of the Data Protection Act, the first step is to provide an insight into the PathMate2 project. In a further step, terms such as patient data, telemedicine and third countries are explained in more detail. In chapter 3 the author draws a legal comparison between the BDSG and the DSG. In this context, special regulations under private and public law are discussed. In a final step, implications for the PathMate2 project are elaborated in order to draw a conclusion and give an outlook for the future.

Contact person for this topic is Nurten Öksüz

Smart Home Architectures – A Comparison in Consideration of Technical and Service-Oriented Aspects

Type: Bachelor-Thesis
Student: Mathias Becker
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Ralf Bleymehl
Edit time: SoSe 2017

Description:

The aim of the thesis was a literature research comparing the currently common Smart Home architectures and their service-oriented aspects. To achieve this goal, two concrete research questions are posed: (1) "Which architectures exist with respect to the smart home concept and how do they differ; (2) Which functions can a smart home offer to its inhabitants and how can they be distinguished from each other? To answer these questions, on the one hand, sources on the internet and in libraries are searched manually, on the other hand a literature review in the scientific databases of Google Scholar and ScienceDirect is carried out. After an introduction to the topic and objectives of the work, conceptual foundations are defined. Within this definitional delimitation the Smart Home in general, as well as chances and risks are explained. In chapter 2 the literature research begins. In the course of this research, open and proprietary systems are first considered and distinguished from each other. Furthermore, architectures are examined in detail and divided into categories. After a detailed description of the architectures, the current problems of these architectures are discussed. In the following section the services in the Smart Home sector are examined in more detail. These are also divided into categories and described in detail. In chapter 3, the last part of the thesis, a conclusion is drawn and the results are summarized. The work is brought to an end with an outlook.

Contact person for this topic is Ralf Bleymehl

Acquisition and analysis of customer-specific bio-signals in trading environments

Type: Master-Thesis
Student: Nurten Öksüz
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 16/17

Description:

Online trade and stationary trade are subject to intense competition, which is carried out, among other things, via the customer's buying experience. In online trading, very detailed traces of each buyer can be analysed. In contrast, stationary trade has only a rough understanding of the actual behaviour of the customer. Customer cards, receipt analyses and analyses in laboratory environments are the main data traces about the retailers to draw conclusions about the buying behavior. In this context, it was investigated whether fatigue behavior can be measured and analytically determined over the time of purchase by means of easy-to-measure vital signs of individual customers. For this purpose, an empirical field study was conducted in a local supermarket, where customers were equipped with vital sensors and measured during real shopping. Using various statistical methods, the data was then analysed.

Contact person for this topic is Nurten Öksüz

Predictive models for Smart Faming Services: damage control in potato harvesting

Type: Bachelor-Thesis
Student: Matthias Heerde
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: SoSe 2017

Description:

The purpose of the work was to develop a prototype of the system that measures the degree of harmful effects on crops via sensory data. Key questions in this context are: How does the quality of damage control depend on the quality of the sensors? What data acquisition techniques exist for the smart farming context that can be used to improve the quality of sensory data on the location of a physical object in a dynamic environment? Can deep learning techniques be used to improve the quality of sensory data?

At the beginning of the paper the concept of a pain sensitive potato (nPotato) is described and the need to control the location of the nPotato sensor and improve its size is discussed. After the motivation and objectives, conceptual basics are introduced and a literature review on positing systems is given. Afterwards the status of the Smart Farming project is described. Then the system design, sensor types and sensor fusion techniques relevant for the work are described. In section 3, details on implementation are presented, in particular which device is used for data acquisition, which communication protocols are used, and how data processing is performed. Section 4 presents the experimental evaluation of the implemented system. The thesis concludes with a summary in section 5 and an outlook in section 6.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Market analysis of apps in the healthcare sector: Current developments and market forecast

Type: Bachelor-Thesis
Student: Johanna Bopp
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Ralf Bleymehl
Edit time: WS 16/17

Description:

The aim of the thesis was the analysis of the current developments of Apps in the health care sector, as well as the creation of a market forecast in this domain. Besides the analysis of the current market situation, current apps are described and classified. Important questions are among others: How are the digitalization of the health care system and the growing distribution of mobile devices already linked? How well known are medical apps? How often are fitness and health apps used? After an introduction to the topic, objectives and an explanation of the structure of the work, conceptual foundations are defined. Within this definitional delimitation the health care, eHealth, Apps in general and Apps in the health care are explained. In chapter 3 the market analysis begins. In the course of this analysis, the actual situation is examined first and factors influencing the development of apps in the health care system are described. Within this description there are, among other things, the changed health awareness of the population, the usage behaviour of the Internet and the general digitalisation and networking. Subsequently, current apps in the health care system are analyzed and categorized. The categorisation is carried out in a top-down approach: First a rough classification into health apps and medical apps is made, which are then further assigned to sub-categories such as nutrition, fitness, lifestyle in the area of health apps or apps for service providers and apps for medical devices in the area of medical apps. The market analysis is concluded with the limits of apps in the health care sector. Market forecasts are made in the following chapter. These include sociodemographic and technological developments. Furthermore, short-term as well as long-term developments for apps in the healthcare sector are presented. Chapter 5, the conclusion of the thesis, summarizes the results and gives an outlook.

Contact person for this topic is Ralf Bleymehl

Market analysis on smart wearables: Current developments and market forecasts

Type: Bachelor-Thesis
Student: Franziska Braun
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: WS 16/17

Description:

The aim of the thesis was the analysis of the market of smart wearables with regard to current and forecasted developments. Key issues in this context were: What is generally understood by Smart Wearables and which wearable categories currently play a role in the market? How stable is the market for Smart Wearables, what are the challenges and how will the market develop in the future? After motivation, objective and explanation of the structure of the work, the general term Smart Wearables is defined and explained by means of examples. The following product categories will be examined in detail: Smartwatches, Fitness Tracker, Smart Glasses and Smart Clothes. In the following, older forecasts are considered in order to be able to determine after a quantitative market analysis to what extent earlier forecasts have proven to be true. Within the quantitative market analysis, the market size, market growth, market dynamics and market potential are examined for the individual product categories. Chapter 6 deals with qualitative market analysis. This is carried out using the Porter Five Forces Model. After explaining and describing the individual components of the model, the Porter Five Forces Model is critically reviewed and missing factors are pointed out. The model presented is then applied to the market for smart wearables. Here the market is analysed according to the following forces: Analysis of supplier power, analysis of customer power, analysis of the threat of substitute products, analysis of the threat of potential new competitors and analysis of rivalry between existing competitors. Finally, a conclusion is drawn regarding future forecasts, stability and challenges of the market for smart wearables.

Contact person for this topic is Barbara Müller

Children using mobile technologies - implications for the design and development of mobile health applications for children

Type: Bachelor-Thesis
Student: Anna Shuhayeva
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Nurten Öksüz
Edit time: WS 16/17

Description:

Digitisation has radically changed many areas of human life. The use of apps in particular is contributing to the rapid advance of digitisation. The use of mobile apps is also increasing in the health care sector. The development of apps designed for children is a particular challenge. The aim of this thesis was to analyse the topic "Children using mobile technologies" and to work out implications for the conception of mobile health applications for children. Key issues in this context were: How do health applications have to be designed and developed in order to lead children to an autonomous health awareness? How can health applications help children to cope with their illness? After motivation, objectives and explanation of the structure of the work, the term health applications is explained and placed in its subject-specific context. Subsequently, the legal aspects of health applications are discussed in more detail. In a further step, the term "digital natives" is explained to illustrate how children deal with mobile technologies. After the examination and analysis of already existing health apps for children in chapter 7, apps from the learning sector are used as a basis for comparison in order to provide additional information on the design and development of apps for children. Chapter 8 derives implications for the design and development of health apps for children. In chapter 9 the results are summarized once again to draw a conclusion and give a short outlook in a last step.

Contact person for this topic is Nurten Öksüz

Analysis of the influence of gender-specific preferences on the acquisition and use of smart wearables

Type: Bachelor-Thesis
Student: Steven Kulik
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: WS 16/17

Description:

The aim of the thesis was to analyse gender-specific influences on the purchase and use of smart wearables. In addition to the analysis of the current market situation, current and future gender-specific preferences with regard to smart wearables are identified. Key issues in this context were: What is generally understood by Smart Wearables and which categories of wearables are currently most common? What role do smart wearables play in everyday life and which functions are used? Are special wearable categories preferred by women or men and what gender-specific differences can be seen in the use of smart wearables? After motivation, objectives and explanation of the structure of the work, the historical development of Smart Wearables will be considered and then the individual technologies of Wearable Computing will be defined. Within this definitional delimitation, Ubiquitouis Computing, Human-Machine Interaction and Augmented Reality are explained. Subsequently, the most common wearable categories are listed with functions and product examples. The 3rd chapter deals with the Quantified-Self-Movement in the context of the use of Smart Wearables. Subsequently, the focus of the work begins. Here, the market of smart wearables is analysed with regard to gender-specific differences in the purchase and use of smart wearables and precise preferences of women and men are derived from this. Finally, recommendations for action for manufacturers are listed according to the corresponding preferences of women and men. In chapter 5, the conclusion of the work, the results are summarized and a short outlook is given.

Contact person for this topic is Barbara Müller

Information systems in the context of precision farming - a market analysis

Type: Bachelor-Thesis
Student: Maximillian Huse
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: WS 16/17

Description:

Precision Farming refers to a method of location-differentiated and purposeful cultivation of agricultural land, taking into account the current position in the field. In doing so, differences in the soil and the yield capacity within a field are to be taken into account. Farming in the sense of Precision Farming is described as sub-area specific, since within a large field the effects of different soils are taken into account. For this purpose, the positions of the machines in the field are collected and these in turn record and document special parameters, e.g. yield, in real time, which can be used as a basis for coordinating soil management, e.g. fertilisation. This enables more precise sowing or fertilisation and can thus lead to savings in operating resources and ecological relief through reduced use of fertilisers. In the present work the use and the potentials of information systems in precision farming were to be examined. The aim of the thesis was a market analysis of existing precision farming information systems and their evaluation based on a catalogue of criteria. Important questions in this context were: What is precision farming and in which form is the approach supported by information systems? Which companies offer information systems for precision farming (market analysis)? How do the information systems offered differ (criteria catalogue and evaluation)? In the introduction the central terms precision farming, information systems and their interaction are defined. Chapter 2 comprises a review of relevant literature with characterisation of information systems in precision farming as well as the results of the market analysis, i.e. the evaluation of a sample of existing information systems. In chapter 3 the results of the market analysis are interpreted before the work comes to a conclusion.

Contact person for this topic is Sabine Janzen

Cloud computing and privacy: Technologies and Strategies for Privacy Protection

Type: Bachelor-Thesis
Student: Mathias Naumann
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Barbara Müller
Edit time: SoSe 2016

Description:

The aim of the work was to develop essential technologies and strategies for the best possible guarantee of data protection in the context of cloud computing. Key issues in this context were: What is generally understood by Cloud Computing and to what extent does this have an impact on current business and private life? What role does data protection play in cloud computing and what is the current legal situation? What potential dangers must be considered when using cloud services and what strategies and technologies can contain these dangers? After motivation, objectives and an explanation of the structure of the work, the term "cloud" and the different organisational and service models will be explained. Subsequently, in chapter 3, the relevance of the topic of cloud computing in both business and private life is illustrated on the basis of current developments. Chapter 4 deals with the topic of data protection and contains an overview of the current legal situation. The following chapter is divided into the technical and non-technical dangers that can arise from cloud computing. Chapter 6 represents the focus of the work. There, the technologies and strategies for ensuring data protection in the context of cloud computing are presented. This is followed by a brief outlook on the legal situation in relation to processing in the USA and the work is completed with a conclusion.

Contact person for this topic is Barbara Müller

Analysis of the legal framework for health apps in Germany

Type: Bachelor-Thesis
Student: Mike Wüstner
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sophia Dorka
Edit time: Sose 2016

Description:

The present thesis deals with the legal framework of health apps in Germany. It addresses the question under which conditions they may be developed, used and distributed. The aim is to analyse the legal basis of health apps and thus avoid or reduce "grey areas" and potential problems. The theoretical part includes explanations of various terms and definitions as well as of certain basic principles of health sapps. In addition, different types of these apps are briefly presented and explained in terms of functionality and usage. In the analytical part, the exact regulations for health apps are then examined. This is done by using relevant laws and standards, as well as publications from professional journals and the Internet. The analysis of these sources is intended to make it possible to make a statement about the legal framework of health apps and to point out possible legal gaps. In this context, it is also attempted to compare the statements of various app manufacturers and developers with the research results obtained. In addition, current problems and conflicts are explained and possible solutions are shown on the basis of legal regulations. The thesis concludes with an outlook on possible chances and risks which could arise in the future.

Contact person for this topic is Sophia Dorka

Health systems in Europe - A comparative study

Type: Bachelor-Thesis
Student: Sabine Dorsch
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sophia Dorka
Edit time: SoSe 2016

Description:

On the basis of a comparative study of the health care systems in Germany, France and Belgium, the following bachelor's thesis aims to show under which conditions cross-border health care can be established within these countries. The topic is based on the evaluation of relevant literature, publications of the individual EU member states and their institutions, as well as publications of health insurance companies and other participants in the health care system, which are collected in the course of internet research. In addition, legal texts relevant to the study and guidelines issued by the EU are also taken into account. The introduction to the theoretical part of the work is the explanation of the term "health care system". In addition, the criteria are defined which are used to classify health systems. The basic structure of the systems, their financing, their care structure as well as the organisation of the service provision serve as differentiation criteria. Based on these criteria, the countries Germany, France and Belgium are classified. If it should turn out in the course of this process that a consideration of Luxembourg is helpful, this will be carried out additionally. In the analytical part, the individual systems are compared with each other on the basis of the defined criteria in order to be able to make a statement about the possibility of implementing cross-border health care with regard to the countries under consideration. In this context, depending on the research results, it may be necessary to go into detail about the EU Directive 2011/24/EU on the application of patients' rights in cross-border healthcare.

Contact person for this topic is Sophia Dorka

Conception, development and simulation of a logical model for cross-border patient care in the wide area

Type: Bachelor-Thesis
Student: Sebastian Ambos
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2016

Description:

Inhabitants of rural areas such as the Greater Region, with a low population density of less than 150 inhabitants per km2, have significantly poorer access to health facilities and services than inhabitants of urban areas. Such rural areas represent "no-go areas"; for example, only 9% of German medical students can imagine practicing in a rural region. This circumstance is aggravated by the demographic development, which in the years 2000-2010 was very low (0-10%) or declining in the rural areas of the greater region. Furthermore, a population projection for the years 2010-2030 shows an immense increase in the number of inhabitants over 60 years of age, which illustrates the increasing ageing of rural regions such as the Greater Region. This leads to an increasing demand for medical care that cannot be met in rural regions. This induces a trend that leads to a decrease in the quality of health care and entails economic future costs and a deterioration in living conditions. In order to improve treatments and to enable balanced care planning, the introduction of "Non-medical practice assistants (NäPA)" in Germany was designed to relieve the burden on general practitioners and to equalize the access of residents to health services in therapy and prevention. After delegation of the general practitioner, the NäPA independently makes home visits where direct contact with the doctor is not medically necessary in order to ensure high-quality ambulatory care. The aim of the work was the conception, development and simulation of a logical model for patient care in the area by NäPAs with special focus on the planning of appointments and routes for daily home visits. Key issues in this context were: What are the requirements for such a model? Which approaches from logistical route planning are suitable for meeting the requirements in a model? How can the model be instantiated using information technology? After motivation and objectives, requirements for the model are mentioned for patient care in the area by NäPAs. In chapter 3, existing approaches from logistical route and tour planning are considered. Then the defined model is introduced and its key points are explained. Chapter 5 describes the instantiation of the model in terms of technical implementation before the simulation compares different strategies of route planning in six scenarios with 25 or 50 home visits distributed over one, two, four or ten NäPA(s). After the results of the simulation have been presented, the work in chapter 7 is completed with a conclusion.

Contact person for this topic is Sophia Dorka

Towards lightweight development of dialogue systems by separating dialogue engines from dialogue specifications – a case study

Type: Bachelor-Thesis
Student: Ralf Bleymehl
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2016

Description:

Natural language systems can be divided into speech/text comprehension systems, speech/text generation systems, natural language access systems to information or devices, question and answer systems, dialogue systems, text summary systems and automated translation systems. In contrast to question-answer systems such as "Siri" (Apple), "Cortana" (Microsoft) or "Google Now" (Google), dialogue systems have the competence to handle interrelated dialogues with at least two participants consisting of more than one question-answer unit. To provide such functionality, comprehensive language understanding and generation as well as specific linguistic and non-linguistic domain knowledge are required. It can be deduced from this that the development of dialogue systems is cost- and time-intensive, as it has to be repeated in the respective domain due to linguistic peculiarities. To reduce costs and time, there are approaches that completely separate the development of the logical core of a dialog system from the mapping of the dialog specifications including domain knowledge, e.g. "NADIA - Natural Dialogue System" (Berg, 2015). The aim of the thesis was to perform a feasibility study on the applicability of the NADIA approach for the development of a dialog system based on the existing natural language user interface "Satisficing Dialogue Engine (SDE)" (Janzen & Maaß, 2015) in the trade domain. Key issues in this context were: Which dialogue scenarios within the framework of SDE are suitable for carrying out the feasibility study? How can the dialogue system and dialogue specifications be mapped in the chosen target domain based on the NADIA approach? Is it possible to implement the selected SDE dialogue scenarios in a qualitatively comparable form based on the NADIA approach? After motivation and objectives, the basics of dialogue systems, their architecture and especially the NADIA approach are explained. Chapter 3 describes the methodology with regard to the selection of the considered SDE dialog scenarios before the development of the logical core of the dialog system (Dialogue Engine) and the dialog specifications are explained. Afterwards, the process of two of the four selected dialog scenarios with the dialog system developed with NADIA is shown as an example and compared to the selected SDE scenarios. In Chapter 5, the results of the comparison are summarized and the work is completed with a conclusion.

Contact person for this topic is Sabine Janzen

Exploring data storage and knowledge representation possibilities in web-based real time data analysis systems

Type: Master-Thesis
Student: Tom Michels
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Semih Korkmaz
Edit time: WS 2015/16

Description:

This thesis presents an architecture for managing data storage and representation possibilities for web based real-time analysis systems. It further discusses various linear and non-linear dimensionality reduction techniques improving real-time analysis and representation possibilities for high volume data streams. Data analysis and forecasts will be performed through the PySpark API of Apache Spark. More specifically, the machine learning library (MLib) of Apache Spark will be used, to perform the data analysis on streams. Data representations and forecasting results will be visualized in web dashboard. The dashboard will be connected to Spark through sockets, allowing real-time visualization and updates without a page refresh.

Contact person for this topic is Semih Korkmaz

Smart Shopping Services – Market Analysis and Benchmarking of Dialogue Systems in Retailing

Type: Bachelor-Thesis
Student: Sara-Lisa Geid
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: WS 15/16

Description:

The rapid developments in technology in the last few years are having more and more influence on the daily life, also on our shopping habits. Products increase in complexity and the mass of information imped to get helpful information for buying decisions. A good service at the Point-of-Sale is more important for a successful customer acquisition and an enduring tie to an enterprise. In addition the increased competition forces the provider to integrate services that are known by customers in the age of Google and Co. Against this background dialogue systems can support sale situations to facilitate the access for customers to product information. By the evaluation of user specific preferences or similar buying decisions of other customer can be made recommendations that reduce the search expenditure and improve the quality of buying decisions. The approach is realized by natural language and allows an intuitive handling for the user with dialogue systems. On many websites of online merchants are dialogue systems already used with success. In the form of Chat- or Lingubots, animated agents assist on the costumers buy of products or can give advice to offered accomplishments. Also the stationary commerce puts more and more on natural language buying assistants. While former investigations examined mainly the technical implementation, this work examines the practical implementation of dialogue systems in real sale situations. Today, there are no extensive market analysis or benchmarks available for applied systems in retail. For the execution of the market analysis, dialogue systems in retail are analyzed and presented concerning their usefulness and functionality. The following benchmarking is based on the previous results. The objective of the thesis is to give an overview of the market situation and to depict gaps. Implications can be given for the transfer of dialogue systems from research out to the market and the use of dialogue systems in commerce can be further improved.

Contact person for this topic is Sabine Janzen

Prediction of health states by analysis of sensor data on mobile devices

Type: Bachelor-Thesis
Student: Michael Paulus
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Mayur Bhamborae
Edit time: SoSe 2015

Description:

Medical prevention of predictable, physiological diseases is posing a solvable challenge in modern times. With the aid of fitness trackers and other wearable devices, the privatisation of early diagnosis of diseases, that are predictable by activity profiles and vital data, is proceeding. This thesis discusses the practicablity of a medical early-warning system with the aid of fitness trackers and an example of sleep analasys with the Misfist Shine Tracker

Contact person for this topic is Mayur Bhamborae

The electronic card of healthiness in context with the E-Health-Initiative – a target-performance comparison

Type: Bachelor-Thesis
Student: Esra Perius
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2015

Description:

As key technology of the 21 Century, information and communication technologies are also becoming more important in health service. As in most western countries, the German health care system is facing the challenge to medicate more and more older and chronic ill patients and structurally weak, rural areas. The governments E-Health initiative is about to find out how this challenges can by the nationwide use of telematics services, for example in telemedicine can be managed and how the transition of successful pilot projects to the health care system can be improved. A part of the E-Health initiative is represented by the creation of a safe infrastructure for the health service, which has been implemented by the launch of telematics infrastructure and the electronic card of healthiness. Latter replaces the health insurance card since the first of January 2015 by doctor’s or dental visits as an insurance proof and was adjunct to intensive preparatory work. The objective of this thesis was to compare the status quo of the electronic card of healthiness at adoption 2015 to the target state of the concept and as a consequence to evaluate the progress of exhaustive, usable electronic applications, that improve the medication of patients. Essential issues in this context were among others: What do we understand by electronic card of healthiness and in which context is it applicable? Wherein exists the intended range of functions of the indeed implementation and introduction of the electronic card of healthiness? After motivation and objectives, there will be an explanation to the basics oft he E-Health initiative and especially the electronic card of healthiness. Subsequent the target state and status quo are presented and contrasted afterwards. Finally the conclusions oft he thesis are discussed before the thesis is concluded with a résumé and an outlook.

Contact person for this topic is Sabine Janzen

Comparative study of costs of information systems in hospitals of the Saarland

Type: Bachelor-Thesis
Student: Anika Fuchs
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Mayur Bhamborae
Edit time: WS 2015/16

Description:

The main objective of this work is to provide a meaningful comparison of the costs in hospitals, caused by diverse Information Systems. Here, only hospitals in Saarland are considered. The focus is on the principal components Hospital Information Systems (KIS), Laboratory Information Systems (LIS), Radiology Information Systems (RIS) and Picture-Data-Archiving- and Communication Systems (PACS) of a hospital. In this range, especially the University Medical Center of Saarland (UKS) is considered and explained in view of its information technology structure and its Information Systems. The composition of such a system in a major hospital is presented exemplary. The thesis gives an overview about the strengths and weaknesses of Information System in the clinical environment and summarizes them. A further objective is to show the problems of comparability of systems in different hospitals and the reasons for this. A discussion about data privacy and system security is included in the thesis. In the end the processed points are reflected and discussed before an outlook to future research approaches is given.

Contact person for this topic is Mayur Bhamborae

Smart Services in animal farming – Market analasys and potentialities of Quantified Self approaches using the example of sport horses

Type: Bachelor-Thesis
Student: Christin Grub
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2015

Description:

Smart Services support elicitation and provision of environment information (sensors), filtering and aggregation of data and user-friendly presentation of the resulting informations. Possibilities to use Smart Services include specific single functions, decisional support and steering of complex systems. This thesis discusses potentialities of this services in animal farming. More precisely the potential application of Quantified Self approaches, whose market increased massive in human range in 2014 and 2015, in animal farming using the example of sport horses. The thesis objective was an market analasys of existing Quantified Self proposals in equestrian sport and furthermore an expert inquiry about the potentialities of Smart Services based on the Delphi technique tot he derivation of implications. Essential issues in this context were among others: What do we understand by Quantified Self and in which form can the concept be applied in equestrian sport? Which suppliers of Quantified Self concepts for equestrian sport exist on the market? Which potentialities and risks arise from usage of Quantified Self in equestrian farming?

Contact person for this topic is Sabine Janzen

Development of a data-analytic framework model based on Apache SparkTM

Type: Bachelor-Thesis
Student: David Koch
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Mayur Bhamborae
Edit time: SoSe 2015

Description:

In this thesis a matrix for a data analysis tool is developed, which can by means of Apache SparkTM conduct diverse statistic calculations in a data set and submit these results to the user. Mainly used are the Spark library Mlib for statistic data evaluation and the computer language Java for the matrix as for the user interface. The planned basis is made up of the implementation of the calculation of correlation, expectancy value, variance, standard deviation, skewness and kurtosis of the data set. The extent of the statistic calculations depends on the progress of the work and can according to that keep growing. In the first step, the required components for the software development need to be compiled and arranged as a working unity plus the acquirement of basics of Apache SparkTM. In the second step the question is answered, how the presented software can be implemented. Attention should be paid to the possibility to enlarge the functionality in future easily. After the compilation of a model, the software should rise, that summarizes all required components for the analysis of a data set in Apache SparkTM to reduce the investments on future installations and uses. For that purpose, a detailed documentation of the project is generated.

Contact person for this topic is Mayur Bhamborae

Market study to personal health data systems

Type: Bachelor-Thesis
Student: Emrah Öztürk
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Mayur Bhamborae
Edit time: SoSe 2015

Description:

In the beginning oft he computer century, Gordon Moore predicted, that integrated switching circuits will revolutionize the future. The fact, that the efficiency of electronic devices grew continuous, first made digital revolutions, e.g. the Internet, possible. Also smartphones and other technological progress, which influence our life benefit from this growing efficiency. Yet also information are more valuable than ever, but the unbelievable mass of data is posing serious problems for enterprises. Even if Big Data is leading to huge challenges, there is an immense potential that is able to revolutionize today’s medicine. Many people wish for a long and especially healthy life, following this aim is getting harder everyday because many illnesses like diabetes and in particular cancer are getting more frequent in today’s society. Hereditary impacts and the convenient lifestyle lead to a more frequent appearance of these diseases than in earlier times. Appropriate therapy approaches are more important than ever, because they guarantee the best possible chances of recovery of the patient. Especially in cancer research a therapy approach specific to the patient could assume an important role, because not every standardized cancer therapy is working on every patient, because every human is different as an individual. A personalized medicine seems to be possible from a technic point of view, but is it possible to realize this? Which data do we need to guarantee a personalized health care and which challenges do we meet, trying to personalize medicine?

Contact person for this topic is Mayur Bhamborae

Determining the quality of a workpiece after the grinding process in the field of "Smart Production"

Type: Projektarbeit
Student: David Koch, Michael Paulus
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Ruchi Dhiman
Edit time: SoSe 2015

Description:

In the context of Industry 4.0, there is a research paper by M.Sc. Tanel Aruvali in cooperation with Prof. Dr. Dipl.-Ing. Wolfgang Maaß concerning the automated evaluation of secondary sensor data during a specific fabrication step and the following consequences on and correlations with the objectively measured quality of the processed workpiece. In our project we demonstrate how a translation of this hypothesis could look like when a belt sander, a microphone and a vibration sensor are used. We also demonstrate the functionality and relevance of the papers idea in this context.

Contact person for this topic is Ruchi Dhiman

Sensor-based Self-Tracking: Analysis and implications of existing business models at the market

Type: Bachelor-Thesis
Student: Daniel Wagner
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2015

Description:

The market of sensor-based Self-Tracking devices, especially in the fitness sector increased massive in 2014 and 2015 and it is expected that this upswing will continue. Via online trading of Amazon for example, there are Self-Tracking devices offered by more than 30 different enterprises. The objective was the analasys of business models of the existing providers of Self-Tracking devices on the market based on the Business Model Canvas approach of Osterwalder & Pigneur (2011) with subsequent comparison of the analysis results for deduction of implications. Essential issues in this context were among others: What do we understand by Self-Tracking and in which context it can be applied? Which providers of Self-Tracking Hard- and Software are on the market? Which particularities in configuration of the business models can be deviated for this sector? After motivation and objective, basics of sensor-based Self-Trackers, business models generally and particular the Business Model Canvas approach will be elucidated. Afterwards, the method concerning the considered selection of providers of Self-Tracking products will be described, before they will be analysed by the Business Model Canvas in chapter 3. After that, the findings of the analysis in chapter 4 will be summarized and implications are dedicated. The thesis is concluded with a résumé.

Contact person for this topic is Sabine Janzen

Smart Student Platform

Type: Projektarbeit
Student: Tim Hollinger, Steven Blatzheim
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Tom Michels
Edit time: SoSe 2015

Description:

Starting in the summer term 2015, participants of the lecture information management can interact with Prof. Maaß by means of the smart student service. The communication between the students and the professor is bi-directional. During the lecture, students can post questions using their laptop or mobile device. Those questions will then be answered and discussed during the lecture by the professor. Furthermore, Prof. Maaß can ask multiple-choice questions through the platform. Those questions evaluate the understanding of the presented contents and help students to reflect on the discussed topics. Additionally they help the professor to assess the comprehensibility of his lecture. The objective is to better integrate students into the lecture. Especially in bigger classes, students are very reserved and do not dare to ask questions. Therefore questioning is always anonymized. During the next weeks a new update will also activate some kind of „mood barometer“ for the students. The „mood barometer“ should allow students not only to give feedback regarding the comprehensibility, but also evaluate interestingness of the presented contents. That information allows the professor to not only improve his lectures in real time, but also to enhance his presentations slides every year.

Contact person for this topic is Tom MichelsTeresa Camille Michels

Electronic Personal Healthcare - Sensors to permanent recording of biosignals in Biosignalen everyday environments

Type: Bachelor-Thesis
Student: Ricarda Gallelli
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Tom Michels
Edit time: SoSe 2015

Description:

Non-intrusive sensors and fitness trackers, constantly measuring the bio signals of our body are finding a growing appeal in our society. On the one hand, the rapid advancements in technology lead to more and more accurate sensors, on the other hand, due to the skilled worker shortage, misdiagnoses, widespread diseases based on physical inactivity or stress as well as less developed medical care in rural environments, the technological support for doctors and patient is getting more and more attractive. The concepts of a quantified self and patient empowerment represent the basis for further research towards data-based healthcare. Furthermore, advancements in the area of data science and machine learning will allow an unprecedented analysis and prediction on the health situation of the patient. The following paper performs a market analysis on available sensors allowing a constant measurement of bio signals. However, only unobtrusive sensors that can easily and comfortably be integrated in a persons everyday life are considered. In a next step, possible applications of those sensors on various diseases and the supportive function on the treatment and diagnosis are considered. Lastly, the economic and business perspectives related to the deployment of those sensors is discussed. The goal of this paper is to identify and assess potential sensors and map the latter to possible applications of coronial diseases.

Contact person for this topic is Tom MichelsTeresa Camille Michels

RDF Product Mashup – From Web APIs to a Web of Product Data

Type: Bachelor-Thesis
Student: Sven Kastens
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2014

Description:

Information systems need area specific knwoledge basis, which provide extensive information and, concerning actuality and quality of data, meet high demands. The creation of knwoledge basis is mostly implemented manually by relational database systems. Contrary, the desired informations are already present in structured or unstructured form in web. So we can find for example identical product informations in different online-shops. An extensive and redundant compilation taktes place, which leads to isolated application, that need to be maintained intensive. This work examines the semantic aggregation of product information in web and their subsequent appropriation as knowledge basis of an information system. The focus is on web-based, existing product data, which are provided by Web APIs on existing online services like Amazon or Ebay. To generate a homogeneous knowledge basis out of heterogeneous data of different online services, these are aggregated as an RDF Mashup. The objective was the development of a model for inquiry, processing and appropriation of web-based product data using the example of information demand of a dialouge system in eCommerce.

Contact person for this topic is Sabine Janzen

Distributed rights management for smart sensors using the example of personal health data

Type: Bachelor-Thesis
Student: David Ziemann
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2014

Description:

E-Health, Health-App, the electronic card of healthiness, telemedicine are terms discussed medial and in public. The term E-Health describes the commitment of electronic media for medical maintenance and other tasks in the health sector. This includes for example self-control of chronic ill patients, which can transfer their data online to their doctor and doctoral consultations via Skype. The EU pushes the implementation of the E-Health plan 2012-2020 and producers like Apple and Microsoft market Apps and Health-platforms, that (1) link patients, (2) save costs on long-term view, (3) improve diagnosis and therapy methods and furthermore (4) have a huge appetite for data. This appetite for data concerns sensitive, individual health data of any patient and generates skepticism in Europe and other countries all over the world. We need practicable approaches that, on the one hand, protect patient data and, on the other hand, make information accessible where it’s needed. This work examines the implementation of smart sensors in creation, saving and communication of individual health data. Smart sensors adopt beneath simple measurements, for example pulse or temperature, also the rework respectively the processing of signals. This enables a distributed and decentralized converting of data and a distributed management of access authorization. The objective was the development of a model for a distributed rights management for smart sensors using the example of individual health data in line with an electronic card of healthiness.

Contact person for this topic is Sabine Janzen

A Database of 6 Billion Web Pages - Usage of Open Web Crawl Data in Conversational Recommender Systems

Type: Bachelor-Thesis
Student: Mathias Meiser
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2014

Description:

Information systems need area specific knwoledge basis, which provide extensive information and, concerning actuality and quality of data, meet high demands. The creation of knwoledge basis is mostly implemented manually by relational database systems. Contrary, the desired informations are already present in structured or unstructured form in web. So we can find for example identical product informations in different online-shops. An extensive and redundant compilation taktes place, which leads to isolated application, that need to be maintained intensive. This work examines the implementation of web-based, public Crawl data as knowledge basis of an natural language recommendation agent in the e-commerce sector. So called open Web Crawl data represent a public corpus of web data on the scale of round about 540 terabyte. This consists of current archives with HTML content and metadata of websites, that have been analyzed by an automatic Crawl-Bot. The objective was the development of a model for extraction, processing and appropriatiom of open Web Crawl data as domain specific knowledge basis using the example of the need of information of an natural language recommendation agent in the eCommerce sector.

Contact person for this topic is Sabine Janzen

Evaluation of different techniques for near real-time processing of data streams based on the MapReduce design pattern

Type: Bachelor-Thesis
Student: Alexander Schneider
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Christian Theres
Edit time: WS 13/14

Description:

The amount of data enterprises work with are doubled every year. Furthermore, business processes got more dynamic and demand data processing in real time, to be able to provide information for everybody in time. In-Memory-, cloud- and mobile technologies represent new possibilities for business transformation and benefits in competition. By the application of those technologies there are chances for organizations, particular possibilities, to react faster to the variability of offer and demand and to fulfill the customers needs exactly. Enterprises will be able to work more efficient by knowledge close to real time in their industry. The potential of available data can be exploited completely and help managers to improve their decisions respectively be able to react fast on changing market conditions and to accelerate critical processes like for example in strategy. This work examines real time near data processing with the help of methods that use the design pattern MapReduce as a basis.

Contact person for this topic is Christian Theres

Product-Centered Web of Data - Acquisition and Aggregation of Distributed, Web-Based Knowledge Resources

Type: Praktikum
Student: Sven Kastens
Supervising tutor: Sabine Janzen
Second supervising tutor: -
Edit time: WS 2013/2014

Description:

Keine Beschreibung.

Contact person for this topic is Sabine Janzen

Event-driven situation recognition via smart sensors

Type: Bachelor-Thesis
Student: Eric Scheid
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: WS 2013/2014

Description:

This work examines the event-driven situation recognition via smart sensors. Constitutive on existing knowledge and technologies, a model for applications of this kind was developed. Based on the models, the prototype of such a smart sensor was developed. Via this sensor, the possibility to recognize an everyday situation by utilization of simple and cost-efficient hardware/sensors should be examined. This happens exemplary in a selected situation in a bathroom. This everyday situation happens in a bordered room, which is perceived as connected by humans (e.g. the primary area in front of the sink). The model and the prototype are presented in this work and should show, how event-driven situation recognition can be realized.

Contact person for this topic is Sabine Janzen

Legal aspects of "Big Data" processing

Type: Bachelor-Thesis
Student: Laura Leidinger
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Christian Theres
Edit time: WS 13/14

Description:

The number of people using the internet to register on social networks, both private and on business and to do the shopping increases everyday. Giving personal data is often unavoidable. This thesis examines the accomplishment of this huge and steady growing data via so called Big Data systems. Furthermore, the judicial aspects of data processing are analyzed, especially the aspects of privacy. First, the term Big Date is explained, before the properties of corresponding Big Data processing systems contain are explained. Moreover the utilization of data processing systems of social networks is exposed. Thereby the probably most popular social networks Facebook and Twitter are compared. Based on the evaluation of current literature and studies is analyzed which already known or self developed processing systems are used by Facebook and Twitter and which judicial aspects concerning privacy are to consider. Finally, prospects are given, whether the data processing systems are appropriate for steady growing data volumes in future and if they meet the privacy requirements or if this taxonomy of Big Data systems has to be enhanced or reworked.

Contact person for this topic is Christian Theres

Concurrent analysis of loads of production data in digital product memories for the generation of conclusions

Type: Bachelor-Thesis
Student: Michael Berres
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2013

Description:

This thesis enters into the question how plenty of production data, which are memorized in a digital product memory, can be analyzed and processed efficient. The objective of the thesis is the construction of a concept, which allows by analysis of this data to get information about the state of machines on the production line. The consequent observation of the state of machines is an essential importance for industrial enterprises. Only by the early cognition of problems in production, product quality can be guaranteed and in time, long downtimes can be avoided. To realize this monitoring, plenty of measurements need to be transferred automatically, saved and analyzed continuous, which postulates an expensive and complex IT infrastructure, which poses an enormous challenge for most enterprises. According to that, this thesis shows, how digital product memory can be used as a low priced and efficient alternative to the equipment condition monitoring of machines. By the commitment of digital product memories, data that are recorded by the adaption can already be saved in the product memory during the production. Considering the memories of several products after leaving the production line, a huge data volume is created, which contains the measurements of all machines involved in production. Building on this basis, a model is developed, which describes how this huge mass of data can make statements about the state of machines via concurrent analytic processes. First, an overview about the current state of research of all relevant themes is given and analyzed, which information out of this is important for the development of the described concept. With this knowledge, a model is presented which describes how mass data can be readout, buffered and processed out of a product memory. Afterwards, a prototypical implementation of this model is presented, which shows, that the theoretical draft can be realized in practice. Finally, the results are summarized and further important research themes are presented.

Contact person for this topic is Sabine Janzen

Perception of product shelves according to walking speed

Type: Projektarbeit
Student: Niksala Kandasamy
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2013

Description:

No description.

Contact person for this topic is Sabine Janzen

Analysis of digital product memories via semi-structured data banks and Web Technologies

Type: Bachelor-Thesis
Student: Nina Fischer
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: -
Edit time: SoSe 2013

Description:

This thesis examines the data analysis in digital product memories, exercised in mass production. Thereby these digital product memories can provide information about their current condition and on which machine they are located. The question is engaged with the detection and analysis of failure in production and to predict with this further occurring failure. Based on this, firstly relevant models and projects are presented. After this, a model is described how the needed data are to receive. These are simulated via the virtual data bank MongoDB and saved in a cloud. Data can be analyzed and provide information via hypothesis testing about possible future conditions. The thesis describes a self-formulated scenario and is giving results out of the analysis. Finally the results will be evaluated and forecasts about further relevant themes are given.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Analysis of movement-based data in public spaces using smart sensors to generate recommendations for action

Type: Bachelor-Thesis
Student: Tom Michels
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2013

Description:

The question of this thesis is to determine how movement data in public spaces can be upraised via smart sensors and how this data can be used or interpreted to generate recommendations. The recommendations based on the movement data should enable to regulate the afflux in public spaces and to place this information via public websites. Long waiting lines should be avoided during rush hours and the inlet distributed better during a certain period. The scope of application is imaginable in every service areas where waiting lines occur, because shorter waiting times have a positive impact on the costumer satisfaction in general. First, a concept is developed, which describes the experiment set-up and determines, on which spots the sensors should be positioned. Afterwards, with the help of this concept, the needed hardware components are selected, implemented step by step and integrated in the project. Then, a server and a website are installed so that the recommendations based on the data can be placed. After the project implementation, the functionality is tested in a laboratory and, if necessary, adapted. Then the sensors are placed in the cafeteria of the University of Saarland on the before determined spots to measure the movement data during the opening times.

Contact person for this topic is Sabine Janzen

Embedding, processing and communication of procedural production-knowledge in the product memory

Type: Bachelor-Thesis
Student: Janek Beicher
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Sabine Janzen
Edit time: SoSe 2013

Description:

This thesis enters into the question, how production knowledge and production information can be integrated in products respectively how to link with these, so an individual digital product memory can arise. Additional we examine how this knowledge is processed and in which way a product memory can communicate with the entities of production. The embedment of procedural fabrication knowledge in a product memory has relevance for cases of application in the whole product life cycle from production up to the use of the product. Linking the product and production information allows to learn information about the used material, machines and production processes of a product instance even after leaving the place of production. Saved data can for example help in fabrication to analyze production errors efficient and to correct them. For the costumer, production information is relevant if the fabrication method is generating recommendations. First, exemplary scenarios are carved out, which outline the use of embedding fabrication data in product memories. We analyze, which fabrication data is particularly relevant. On the basis of this data shall be described, how fabrication data can be represented semantic and integrated in existing object memory models. Especially the integration to the Object Memory Model (OMM) is treated. It is explained, how communication of products with their environment can be realized and how collected data can be processed. Furthermore, a computer based simulation of the procedural fabrication of a product will be realized, which shows, how fabrication data can be embedded to a product memory in a concrete case.

Contact person for this topic is Sabine Janzen

Graphical Editor for Situation Modelling

Type: Master-Thesis
Student: Matthias Kutscher
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 2011/12

Description:

What if your bathroom selected the current train connections for your drive to the office because the streets are frosted? Intelligent environments are available to adapt to the user, e.g. concerning the possibility of interaction between user and environment. Therefore we need knowledge about the situation the user is located, means the context. Such situations are characterized through different aspects: User; exchanged information (e.g. train connections); services (e.g. meteorological service, train service) and so forth. So that intelligent environments can react convenient, they need information in machine processing capable form. In this thesis, a concept of a graphic editor for modeling such a situation is developed, based on existing scientific findings in graphic modeling and interface design. The editor should be able to model situations on basis of a specific structure, i.e. under certain circumstances, graphically, to save and to change them. Additionally the export of an ontology based on the graphic model is possible. In particular the following questions should be answered: Which scientific approaches are appropriate for graphic modeling in the range of the editor? Which guidelines of interface design need to be considered with the conception of the editor? Which approaches are appropriate to generate the ontology based on a graphic model? Objective of this thesis is the creative analysis of requirements to the graphic editor and the development of a concept to answer the above-mentioned questions. Further, the editor is implemented in the form of an application.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Mobile Game for In-Store Shopping Situations

Type: Bachelor-Thesis
Student: Sabrina Reinhardt
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: SS 2011

Description:

Imagine you are in a grocery discount store and you want to buy olive oil. The offer is abundant, the decision is difficult. On the one hand you want to pay attention to the price, on the other hand the quality of the oil is important to you. You have also heard that many expensive olive oils do not deliver what they promise. Unfortunately, the internet does not really help you, because the common portals only offer incomplete product information or you have to work yourself through cumbersome forums with user opinions. What is already offered today in Internet shopping through review and commentary functions (see amazon.de) could in the near future also be possible in supermarkets or other shops - the customer describes the products himself using his own experiences. So far, however, these reviews lack a clear structure, are not machine-readable and can therefore hardly be further processed and used by computer programs.

In this thesis, based on existing scientific knowledge in the field of marketing (incentives - Anreize) and game design, a research is to be carried out with regard to existing approaches and theories on the topic described above. Furthermore, the thesis includes the development of a concept of a mobile game for a mobile device and its implementation. In particular, the following questions are to be answered:

  • Which approaches for incentives exist in marketing regarding the "rewarding" of users for generating content? How can users be activated to feed mass data?
  • Which approaches in game design are suitable for implementing a concept of a mobile game for a mobile device (based on Android) with the described objective? Which tools can be used here (e.g. http://www.google.com/sky/skymap/)?
  • How can the integration of the generated data into an existing product data model (see Smart Product Description Object (SPDO)) be implemented?

The aim of this thesis is to creatively design and develop a computer game that provides customers with an incentive to store product information and opinions digitally and also to answer the above questions. Experiences with the technologies of the semantic web or the interest to get familiar with them as well as programming skills and a good portion of creativity are required to work on this topic.

Contact person for this topic is Sabine Janzen

Development of a mobile recommender system for context sensitive event recommendations

Type: Bachelor-Thesis
Student: David Steiner
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 2010/2011

Description:

In range of this thesis, a model for context sensitive event recommendation is developed and therefore a prototype based on the android mobile platform should be developed. Based on a spatial context, preferences and intentions as well as on the users calendar, event recommendations are generated out of online available event information, which answer to the named criteria and where friends of the users participate and/or which are placed recommendable by the friends of the user. Therefore, different social platforms and event providers should be linked to generate the event recommendations. In this thesis, a recommender system should be developed, which is filled by de linked data resource and which determines the event recommendations based on dynamic conclusion processes on a semantic data base. An android application on a mobile phone allows the user to view event recommendations, to rate, accept or refuse them.

Contact person for this topic is Andreas Filler

„Speak to me“ – Speech Analysis for Mobiles

Type: Bachelor-Thesis
Student: Gregor Panek
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: SS 2010

Description:

Imagine it is Saturday afternoon, the city is totally crowded and you are looking for a black jacket. In a big clothing store, you ask your mobile phone if there are jackets of this type available. The mobile phone replies: "Yes, there are 6 black jackets in your size. You can find them on level 2." To realize such a scenario, the mobile device must be able to process speech automatically. Due to the limited resources of the device, service-oriented architectures and "lean" tools are used in this case. The system answers simple, natural-language questions of the user in the shopping context. In this thesis, based on existing scientific knowledge in the field of speech analysis, a research regarding existing speech analysis tools for the use on a mobile device shall be conducted. Furthermore, the thesis includes the development of a concept of a speech analysis for a mobile device based on the dialogue system CoRA and its implementation. In particular, the following questions are to be answered:

  • Which speech analysis tools are available? Which requirements does a mobile device have for such a system? Which tool meets these requirements?
  • Which scientific approaches are suitable for the implementation of a speech analysis concept for a mobile device?
  • How can the speech analysis tool be linked to CoRA (e.g. key-word approach)?

The aim of this thesis is to research speech analysis tools for mobile devices, to develop a concept to answer the above mentioned questions and its implementation. Experiences with the technologies of the semantic web or the interest to get familiar with them as well as programming skills are required to work on this topic. The following article is a first reference to the topic.

Contact person for this topic is Sabine Janzen

Context Modeling in Ubiquitous Environments

Type: Bachelor-Thesis
Student: Patrick Mülhaupt
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: SS 2010

Description:

What if on a Monday morning your bathroom searches for the latest S-Bahn connections for your trip to the office because the streets are icy? Intelligent environments are able to adapt to the user, e.g. with regard to the interaction possibilities between user and environment or the type of information that is conveyed to the user. To do so, they need knowledge about the situation the user is currently in, i.e. the context. In this thesis a concept of a context model for the use in an intelligent environment, e.g. a bathroom, shall be developed based on existing scientific knowledge in the field of context modelling. The context model should, among other things, enable the acquisition of contextual parameters (e.g. location, time) and, based on this, the interaction with the user, information content and forms of information to be adapted to the specific situation. In particular, this involves answering the following questions:

  • Which scientific approaches are suitable for designing a context model for intelligent environments?
  • Which context parameters describe a situation, e.g. in the bathroom?
  • How can the context model be represented in a computer-processable way? What are the possibilities?
  • In what way does the application of the context model change the behaviour of the intelligent environment?

The aim of this thesis is the creative analysis of the context parameters of a situation, e.g. in the bathroom, and the development of a concept to answer the above mentioned questions. Furthermore, the concept should be represented in a logical, computer-processable form and implemented prototypically, in the sense of a small application. Experiences with the technologies of the semantic web or the interest to get familiar with them as well as programming skills are required to work on this topic. A first literature reference on the topic is the article by Thomas Strang and Claudia Linnhoff-Popien "A Context Modeling Survey".

Contact person for this topic is Sabine Janzen

Context-sensitive use and presentation of contents in the range of product processing

Type: Bachelor-Thesis
Student: Matthias Kutscher
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Albrecht Schäfer-Schönthal
Edit time: SS 2010

Description:

Providing of a complex, individual adapted solution in B2B sector, e.g. the arrangement of large-scaled office space is generally accompanied by counseling interview between sales of the solution provider and the customers buying center. This thesis examines how an information system can support the preparation and post-processing. A computer system is developed, which allows to retain the current status of the sales position and, further, to be informed in preparation for the next talk about open questions. The thesis’ focus is on context-sensitive user interfaces. It will be examined which presentation and interaction techniques (e.g. description fields, check lists, moodboards, graphs, diagrams etc.) are appropriate to intakes and outputs of different types of information (e.g. the office space in square meter, communication patterns between employees, desired room ambience etc.) and how this classification can be automatized. Based on the results a prototype is generated.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Implementation of a dynamic price model for smart products.

Type: Bachelor-Thesis
Student: Martin Weber
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. D. Eisenbiegler
Edit time: WS 2009/2010

Description:

Smart selling environments of tomorrow allow an individual pricing of products. The inserted price model (e.g. spatial or chronological price differentiation, auctions, bundling) supports the realization of strategic and operational objectives of dealers or producers like for example sales maximizing, minimization of stock or the sell-off of shelf warmers via discount campaigns. Contrary to a statistic pricing of products, usual in today’s retail, the price of smart products can be changed depending on different parameters. For example the price of a smart product in a concrete context in a selling situation (e.g. demand, place, customer, time, stock, product attractiveness and so on) could adapt dynamically. The objective of the thesis is the realization of a software model in Java based on a dynamic price model and its integration to the existing Tip ‘n Tell Framework. Technical the pricing of a smart product should be realized by semantic described price and context information and rules. Therefore needed is a deeper knowledge in Java and basic knowledge in semantic web technologies (XML, RDF, OWL, SWRL) to work on this thesis.

Contact person for this topic is Tobias Kowatsch

Conception and realization of a mapping-editor for conversion of standardized and semantic data

Type: Master-Thesis
Student: Ulrich Tischendorf
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. D. Eisenbiegler
Edit time: WS 2009/2010

Description:

In range of this thesis, a mapping system with visual editor should be produced which allows a conversion between standardized production descriptions (e.g. BMECat) and semantic product description objects (cf. SPDO). Thereby solutions for grouping mechanisms (summarized concepts) and matching functionalities should be developed, which are described in a mapping definition for the subsequent mapping. The editor can be realized by: Ajax-based web application, Adobe AIR or Java application.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

User modeling in physical shopping environments

Type: Bachelor-Thesis
Student: Markus Lassmann
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: SS 2009

Description:

In this thesis a concept of a user model for the use in mobile applications in physical shopping environments (in-store shopping) is to be developed on the basis of existing scientific knowledge in the field of user modelling and profiling. The user model should e.g. enable to suggest suitable products to customers in a specific situation and to consider their knowledge and individual intentions / wishes in the sales conversation. In particular, this involves answering the following questions:

  • Which profile approaches are suitable for the conception of a user model in the context of the thesis? (e.g. persona-based and attribute-based profile approach)
  • Which methods are suitable for determining suitable products based on the customer profile? (e.g. collaborative filtering (see amazon.de) and product profile similarity)
  • How can the natural-language communication between customer and product in physical shopping environments be optimized based on the data of a user model?

The aim of this thesis is to develop a concept of a user model to answer the above mentioned questions and to evaluate it. As an alternative to the evaluation, a corresponding prototype module in Java can be implemented for integration into the existing Tip 'n Tell framework. A first literature reference on this topic is the dissertation of Dr. Dominikus Heckmann "Ubiquitous User Modeling for Situated Interaction".

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Situational Product Presentation: Dynamic presentation of products in physical environments

Type: Bachelor-Thesis
Student: Oliver Baude
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Schäfer-Schönthal
Edit time: SS 2009

Description:

Physical products are currently described e.g. by standardised product description systems such as ETIM/eCl@ss, BMEcat or GS1. The product information is usually available statically in the form of a database or XML structure and therefore limits the possibilities of logical processing and extension, e.g. by contextual information. The aim of the thesis is the further development of a semantic, dynamic product information, which enables such an automatic processing in terms of updates and extensions as well as an integration of contextual information. Aspects of the presentation of the product in the shop should be integrated into this machine-readable, logical network structure. The following questions are the focus of this work:

  • Which possibilities exist for presenting a product in sales situations? (e.g. through light, speech, smells, sounds)
  • How adaptive can these presentation variants be, e.g. adaptation to the customer, the time, the place, different temperatures?
  • How can the semantic description of the product be dynamically filled with the presentation information? How could the structure of such a presentation description look like?

The aim of this thesis is the creative analysis of the presentation possibilities of a product in physical shopping environments and the development of a concept to answer the above mentioned questions. Furthermore, the concept should be designed in a logical, computer-processable form, e.g. OWL, and prototypically implemented or requested. The existing semantic product description is described in OWL (Web Ontology Language), a semantic description language. Experience with the technologies of the semantic web or an interest in familiarizing yourself with it, as well as programming skills are required to work on this topic.

Contact person for this topic is Sabine Janzen

Evaluation of mobile operating systems and identification technologies as basis for the development of an innovative mobile recommendation assistant

Type: Bachelor-Thesis
Student: Philipp Timmalog
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 2008/2009

Description:

In the context of this work, operating systems for mobile devices such as the Google Android Framework, OpenMoko Linux or OS X iPhone and their technical possibilities for identifying smart products via e.g. barcode, optical tags, or NFC are to be compared. Evaluation criteria have to be established and the result of the evaluation has to be confirmed for the end user on the basis of a practicable prototype type. The prototype should be based on the Tip 'n Tell basic system for smart products. For this purpose, a structured approach is as important as programming knowledge.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Exploration of product information through gestures

Type: Bachelor-Thesis
Student: Markus Mrugalla
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. D. Fetzner
Edit time: WS 2008/2009

Description:

If a customer does not yet have a concrete interest in buying a product, smart products should offer the customer the opportunity to exploratory obtain detailed product information. This is done in a playful way via a multimedia board, which contents are to be controlled by gestures after a smart product has been identified via the Accada framework (see project Tr@sh). Interest in human-computer interaction, especially in tangible user interfaces, and programming skills are required for this thesis.

Contact person for this topic is Tobias Kowatsch

Development of a design concept for the Graphical User Interface (GUI) of a mobile recommendation assistant

Type: Bachelor-Thesis
Student: Andreas Becker
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 2008/2009

Description:

Within the scope of the thesis, a design concept for the GUI of a mobile recommendation assistant is to be developed on the basis of scientific findings on software ergonomics, usability and the design of graphical user interfaces. In particular, the following questions are to be answered:

  • Which guidelines can be defined for the design of the GUI of a mobile assistant?
  • What influence does the situation ( e.g. shopping, support) in which the mobile recommendation assistant is used have on the design concept of the interface?
  • Which design options and GUI elements are offered by different mobile operating systems? How can a transferability of the GUI between different mobile operating systems be simplified? What are the intersections here?

The aim of this creative and design-oriented thesis is the development of the design concept and the prototypical implementation of a corresponding graphical user interface (e.g. in C#, Flash/ActionScript or similar).

Contact person for this topic is Sabine Janzen

Development of complex interaction possibilities for Tangible Shopping environments

Type: Bachelor-Thesis
Student: Dominik Laubach
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: open
Edit time: WS 2008/2009

Description:

By combining identification technologies and sensor-based gesture recognition, complex activities in tangible shopping environments shall be recognized and processed.In the context of this thesis the possibilities of combining identification technologies and gesture recognition shall be evaluated based on a prototypical development. In addition to methodical procedures, this work requires both technical skills and advanced programming knowledge.

Contact person for this topic is Andreas Filler

Social Shopping: Community-based product evaluations in stationary trade

Type: Bachelor-Thesis
Student: Benjamin Mutschler
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. W. Walter
Edit time: SS 2008

Description:

Similar to online systems such as ciao.com, guenstiger.de and preissuchmaschine.de, a rating system is to be developed for the stationary trade (shop) by which a customer can give different types of ratings and view those of others, thus creating new types of product communities. For this purpose, simple input options and evaluation schemes are to be developed, which are suitable for mobile use. Part of the work is an evaluation of the rating system in cooperation with RCIM staff.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Indexing of smart products for organizational and/or business relevant tasks

Type: Bachelor-Thesis
Student: Thomas Ruoff
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. M. Waldowski
Edit time: SS 2008

Description:

Information about smart products, such as price or product information, can be retrieved using interfaces such as a PDA or mobile phone so far only according to the pull principle. Therefore, within the scope of the bachelor thesis, the existing Tip'n'Tell infrastructure is to be further developed by a module that allows the active indexing of smart products following the model of collaborative indexing systems (e.g. Del.icio.us or Flickr). Smart products are to be equipped with tags such as "to-read" or "for-sale" (smart book), which will be made available to the owner or other users locally or on the WWW. Indexing could also be used to optionally start a predefined service such as starting an auction on Ebay. For the development of the module good Java knowledge is required. Initial knowledge of C# is advantageous.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Natural language communication with product collections in sales situations

Type: Master-Thesis
Student: Sabine Janzen
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Dr. F. Stahl (Columbia University, USA)
Edit time: WS 2007/2008 - SS 2008

Description:

The sales situations at the point of sale and in online shopping include advantages and disadvantages with regard to the richness of product information, communication channels, etc. In order to combine the advantages and qualities of both scenarios, the Tip 'n Tell architecture approach involves equipping products with digital product descriptions (Smart Product Description Object (SPDO)) that allow them to network with each other and communicate with the customer. Such smart products enable a holistic product experience directly at the point of sale. The SPDO is the semantic, dynamic product information of smart products, which is the basis for natural-language customer-product communication. The first prototype of a scheme-based communication with smart products in sales situations suffered from a poor selection of constituent options in the question recognition process. The schemes within the linguistic knowledge base were only partially linked to the non-linguistic knowledge of the SPDO. The morphological component as well as the process of answer generation were implemented conceptually, but not prototypically. The aim of the thesis is the designing and prototypical implementation of a Supportive Conversational User Interface (SCUI) for the processing of practical dialogues between customer and product in sales situations. In addition to satisfying the communicative objectives of the customer, the system should in particular represent the economic interests of the salesperson. In this context, the focus of this thesis is on communication via product bundles. The integration of the SCUI into the infrastructure of Tip 'n Tell justifies the requirements that the NLP system works in mobile environments and on the basis of distributed, web-based knowledge representations (SPDO). From a computational linguistic point of view, existing approaches of Natural Language Processing in the field of the schemes and rhetorical relations are analyzed within the work. In this context, the aim is to develop a constituent-based, restrictive NLP concept that enables the necessary performance in mobile environments.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Personalised Aural Shopping: Auditive product messages in stationary retail

Type: Bachelor-Thesis
Student: Daniel Sucke
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. M. Aichele
Edit time: SS 2008

Description:

Shelf-based product presentations in stationary trade are to be extended by an auditory one. For this purpose, a retailer-oriented auditory advertising concept is to be developed, which combines an overall auditory purchasing experience with individual auditory product worlds. For this purpose, an information system is to be developed which enables the control of the auditory advertising concept via a declarative description. This is supported by employees of the RCIM [2]. The system is to be tested in an industry.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Conclusions about product information and visualization

Type: Master-Thesis
Student: Andreas Filler
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. D. Fetzner
Edit time: WS 2007/2008 - SS 2008

Description:

  • Product networking based on SPDO data; subject: large product networks (> 500 products)
  • Examine whether social network analysis helps to draw conclusions about product networks on key issues
  • Conclusion using DL-Reasoner and statistical methods
  • Evaluation in the laboratory
Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Web-based text mining using the example of empolis IAS

Type: Bachelor-Thesis
Student: Jens Kath
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. A. Schäfer-Schönthal
Edit time: SS 2008

Description:

  • Installation of empolis IAS (in cooperation with project SmaProN)
  • Development of a prototype that connects external data sources with product information; focus on Web 2.0 sources and commercial information providers
  • Evaluation in the laboratory
Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Modelling of electronic contracts for consumer goods with semantic technologies

Type: Bachelor-Thesis
Student: Olga Yanenko
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. W. Walter
Edit time: WS 2007/2008

Description:

  • Testing of SWRL, Jena Rules and ontologies
  • Literature analysis
  • Modeling with semantic languages
  • Development of a prototype
  • Integration in SPDO
  • Evaluation in the laboratory
Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Modelling of Cognitive Dust in the context of creative group work

Type: Bachelor-Thesis
Student: Christian Feser
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. P. A. Swatman
Edit time: WS 2007/2008

Description:

In the context of this bachelor's thesis, we will investigate whether there is a correlation between the frequency of eye contact and the subjectively perceived efficiency of a meeting. To be more precise, the thesis "The higher the frequency of eye contact within a meeting, the more efficiently the people involved perceive it" will be discussed. In this context, different low cost possibilities and their problems are presented to track and store the eye contact of a person. Furthermore, the prototype developed in the thesis will be presented, which makes it possible to automatically record eye contact between people at low cost and to evaluate it specifically.

Contact person for this topic is Sabine Janzen

Market analysis for Smart Products

Type: Bachelor-Thesis
Student: Christian Jakob
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. C. Zydorek
Edit time: SS 2007

Description:

Ubiquitous Computing (UC), Pervasive Computing (PC) and Ambient Intelligence (AmI) are research areas to embed information technologies "invisibly" into objects and environments. In part, such technologies are used to make products more interactive and communicative. The aim of the thesis is a broad market analysis of prototypical and commercial products using UC, PC and AmI technologies. This work is suitable for students who have very good analytical skills, are able to work conceptually to develop an analytical model and are able to search for information independently.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Staging of Smart Products

Type: Diplomarbeit
Student: Patrick Straub
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. D. Fetzner
Edit time: SS 2007

Description:

Ubiquitous Computing (UC), Pervasive Computing (PC) and Ambient Intelligence (AmI) are research areas to embed information technologies "invisibly" into objects and environments. In part, such technologies are used to make products more interactive and communicative. This allows products to be staged in an innovative way. The aim of the thesis is to develop innovative staging models for different product categories. The thesis is to be very visionary and especially the technological infrastructure in the studios is to be considered. The staging models are to be developed prototypically. This work is suitable for students who have a strong creative-communicative orientation and know how to combine this with views of marketing. The developed staging models are to be compared with traditional product stagings.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Integration of payment content in Smart Products

Type: Bachelor-Thesis
Student: Rauno Schaal
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. C. Zydorek
Edit time: SS 2007

Description:

On the basis of the Tip 'n Tell architecture and the existing reference implementation, it will be investigated how paid content, such as that of Stiftung Warentest, can be semantically prepared and integrated. Initial preliminary work has already been carried out at the Research Center for Intelligent Media (RCIM). This thesis is aimed at students who have a strong computer science orientation and want to develop applications for mobile devices. Knowledge of Semantic Web, .NET Framework and C# is helpful.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Integration of Web 2.0 content into Smart Products

Type: Bachelor-Thesis
Student: Matthias Pfefferle
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. D. Eisenbiegler
Edit time: SS 2007

Description:

On the basis of the Tip 'n Tell architecture and the existing reference implementation, it will be investigated how product-related information from Web 2.0 environments can be found, evaluated semantically and integrated into smart products. The reference implementation of Tip 'n Tell is to be used as a basis. Initial preliminary work has already been carried out at the Research Center for Intelligent Media (RCIM). This thesis is aimed at students who have a strong computer science orientation and want to develop applications for mobile devices. Knowledge of Semantic Web, .NET Framework and C# is helpful.

Contact person for this topic is Tobias Kowatsch

Digital Aging Services: Analysis for the age-appropriate design of digital services

Type: Bachelor-Thesis
Student: Mathias Stäbler
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. F. Steimer
Edit time: SS 2007

Description:

Against the background of demographic change, adaptation to age-related usage characteristics is becoming increasingly important. In this thesis, different digital services, such as e-newspapers, e-mail, travel bookings, office software etc., shall be analysed on the basis of a concept. Recommendations for action will be derived from the results. This thesis is suitable for students who have very good analytical skills, are able to work conceptually, develop an analytical model and search for information independently.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Analysis for pricing of online-based products

Type: Bachelor-Thesis
Student: Florian Weil
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. C. Zydorek
Edit time: SS 2007

Description:

Prices for information resources cannot be determined using conventional marginal cost methods, as these tend towards zero. In this thesis, a survey is used to determine the methods used by SMEs and large companies to determine the prices of their online-based products. Recommendations for action will be derived from the results. This thesis is suitable for students who have very good analytical skills, are able to work conceptually, develop an analytical model and search for information independently.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Mobile dialogue system for product descriptions in web environments

Type: Diplomarbeit
Student: Sabine Janzen
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Eckhard Bahle (Pentasys)
Edit time: WS 2006/2007

Description:

Nowadays the consumer can make his purchase decision at different places. He can go to a shop, look directly at a desired product and ask a salesperson for advice. However, he lacks extensive product information and comparison possibilities. This net-like structured information is offered to him when he buys on the Internet. In this case, however, the customer misses the haptic experience of the product in a familiar environment. In order to combine the advantages and qualities of both scenarios and upgrade them through a combination, a basic system for information processing and retrieval of semantic product data of a product identified via RFID was developed (TipnTell). This consists of an RDF-based container model for semantic product descriptions, an adapted, web-based product query language and a web service. The aim of the thesis is to develop a concept that allows a natural communication between the user and the system. The consumer should make his purchase decision in a familiar, haptically experienced environment and communicate with the product in the most natural way possible to obtain the desired information. Through the natural language interaction between system and user, an economic and usability-related added value can be achieved. In this thesis, existing concepts and techniques of automatic speech processing are investigated in order to develop and implement a specific model of flexible speech recognition for the Tip`n Tell reference implementation. The focus of the thesis is the combination of language-related knowledge representations with semantic product descriptions.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Adoption of Pre-defined Terms in Collaborative Indexing Systems

Type: Master-Thesis
Student: Tobias Kowatsch
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. P. A. Swatman
Edit time: SS 2007

Description:

Collaborative indexing systems have attracted an increasing amount of attention over the last three years. One fundamental limitation to such a system is the uncontrolled nature of its vocabulary, as this consists of terms users freely choose to index resources. As a result, the vocabulary can be poorly structured and contain meta noise, making it difficult to identify significant clusters of semantically related users, resources, or terms important for various applications such as search or exploration features. Pre-defined terms are suggested to reduce this uncontrolled vocabulary; these consolidate term usage if users adopt them. However, this suggestion has not yet been proved. This work therefore focuses on an empirical study of the adoption of pre-defined terms. The model of pre-defined term adoption (MPTA) is formulated by applying technology acceptance and diffusion of innovation theories, as well as constructs of social network analysis. This underlying research model is introduced to explain determinants of adoption and the resulting effects on the vocabulary in order to indicate consolidated term usage if, and to what degree, pre-defined terms are adopted. MPTA is then validated by one lab experiment with German students of Furtwangen University (n=172), before being cross-validated by two open web experiments with German (n=254) and English-speaking (n=160) subjects. Results indicate that to a certain extent, pre-defined terms are appropriate for reducing the uncontrolled nature of the vocabulary in question. Future research should, however, focus on the selection of adequate pre-defined terms to increase the degree of adoption, such that applications in collaborative indexing systems could benefit much more from a distinctive and meaningful vocabulary.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

"Personal City Guide": Konzeption und Entwicklung eines adaptiven Planungsinstruments im Städtetourismusbereich auf der Grundlage eines High-Level Plans

Type: Diplomarbeit
Student: Daniel Strigel
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Andreas Bleicher (realcontent technologies)
Edit time: WS 2006/2007

Description:

No description.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Semantische Modellierung von Produktbeschreibungen am Beispiel von Consumer Electronic Goods

Type: Diplomarbeit
Student: Jan Seeburger
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. A. Schäfer-Schönthal
Edit time: WS 2006/2007

Description:

No description.

Contact person for this topic is Sabine Janzen

Semantische Suchmaschine

Type: Bachelor-Thesis
Student: Christian Licker
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Markus Wiegand (Harman/Becker Automotive Systems)
Edit time: WS 2006/2007

Description:

No description.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Hybride Produkte - Entwicklung eines Basissystems zur Informationsaufbereitung und -abfrage von semantischen Produktdaten eines über RFID identifizierten Produktes

Type: Diplomarbeit
Student: Andreas Filler
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. Taube
Edit time: SS 2006

Description:

No description.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Marketinganalyse für hybride Endgeräte

Type: Diplomarbeit
Student: Tim Rombach
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Dr. F. Stahl (Columbia University, USA)
Edit time: SS 2006

Description:

No description.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Teilautomatisierte Unterstützung der Produktion von Web-Portalen mit Metadaten

Type: Diplomarbeit
Student: Birgit Koch
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Prof. Dr. D. Eisenbiegler
Edit time: SS 2006

Description:

No description.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Entwicklung und Evaluation eines User-Interface Konzeptes zum Einsatz von "Floaties" in Software-Automatisierungswerkzeugen

Type: Diplomarbeit
Student: Wiebke Klatte
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Dr. Wittenberg (Siemens A&D)
Edit time: SS 2006

Description:

No description.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß

Analyse möglicher Einsatzgebiete von RFID Technologie in Automotive Infotainmentsystemen

Type: Diplomarbeit
Student: Markus Kohlbrenner
Supervising tutor: Univ.-Prof. Dr.-Ing. Wolfgang Maaß
Second supervising tutor: Markus Wiegand (Harman/Becker Automotive Systems)
Edit time: SS 2006

Description:

No decription.

Contact person for this topic is Univ.-Prof. Dr.-Ing. Wolfgang Maaß