Refine
Year of publication
Document Type
- Master's Thesis (92) (remove)
Language
- English (92) (remove)
Has Fulltext
- yes (92) (remove)
Keywords
- Internet of Things (3)
- virtual reality (3)
- Beschaffung (2)
- 2019 European Parliament Election (1)
- API analysis (1)
- API-Analyse (1)
- Agentenorientiertes Software Engineering (1)
- Akzeptanz (1)
- Analysis of social platform (1)
- Articles for Deletion (1)
- Artificial Intelligence (1)
- Association Rules (1)
- Bedarfsforschung (1)
- Belief change, concept contraction, EL (1)
- Biometric Authentication (1)
- Blog marketing (1)
- Breeding tree selection (1)
- Business Process Management Recommender Systems Survey (1)
- Bürgerbeiteiligung (1)
- Case Study Analysis (1)
- Challenges (1)
- Computersimulation (1)
- Corvus frugilegus (1)
- Criteria Matrix (1)
- DMN (1)
- DTI (1)
- Data Mining (1)
- Datenaustausch (1)
- Developer profiling (1)
- Diffusionsbildgebung (1)
- Dokumentation (1)
- Dynamische Analyse (1)
- E-Partizipation (1)
- E-participation (1)
- EU (1)
- Effectiveness (1)
- Einkauf (1)
- Entwickler Profil (1)
- Fahrverhalten (1)
- Feature Modeling (1)
- Fiber Tracking (1)
- Fingerprint Recognition (1)
- Function Words (1)
- GPU (1)
- Gehirn (1)
- Grounded Theory (1)
- Handsfree editing (1)
- Human resources management (1)
- I-messages (1)
- IBM Bluemix (1)
- IceCube (1)
- International organization (1)
- Interoperability (1)
- Interoperabilität (1)
- IoT (1)
- Knowledge Engineering (1)
- MSR (1)
- Maschinelles Lernen (1)
- Material Point Method (1)
- MeVisLab (1)
- Mitral Valve (1)
- Mitralklappe (1)
- Modellfahrzeug (1)
- Multi-Agenten-Systeme (1)
- Natural Language Processing (1)
- Neutino (1)
- OPD-SHRM (1)
- OpenVDB (1)
- Organizational Change (1)
- PEPPOL (1)
- Pan European Public Procurement OnLine (1)
- Pfadverfolgung (1)
- Physiksimulation (1)
- Political Communication (1)
- Real-Time (1)
- Recommender Systems, Business Process Modeling, Literature Review (1)
- Reddit (1)
- Reengineering (1)
- Reverse Engineering (1)
- Robust Principal Component Analysis (1)
- Rook (1)
- STOF Model (1)
- Sand (1)
- Sattelkraftfahrzeug (1)
- Sattelzug (1)
- Schnee (1)
- Segmentation (1)
- Segmentierung (1)
- Sensing as a Service (1)
- Sentiment Analysis, ChatGPT, Students sentiments (1)
- Service identification (1)
- Service-Identifizierung (1)
- Service-orientierte Architektur (1)
- Serviceorientierte Architektur (1)
- Software (1)
- Software Engineering (1)
- Software Repositories (1)
- Software migration (1)
- Software-Migration (1)
- Softwaretest (1)
- Solutions (1)
- Sozialwissenschaftliche Simulation (1)
- Speaker Recognition (1)
- Statistical Shape Model (1)
- Sustainability (1)
- Testen (1)
- Text Analysis (1)
- Text Mining (1)
- Text classification (1)
- Tool Evaluation (1)
- Ultraschall (1)
- Ultrasound (1)
- Umfrage in Koblenz (1)
- VCD (1)
- Vegetation distribution (1)
- Verification (1)
- Virtual Company Dossier (1)
- WEB (1)
- Web Analytics (1)
- Web Analytics Framework (1)
- Web Mining (1)
- Web log (1)
- Weblog (1)
- Wikipedia (1)
- You-messages (1)
- blockchain (1)
- cultural dimensions (1)
- data (1)
- data sharing (1)
- distributed information systems (1)
- distributed ledger (1)
- eGovernment (1)
- eSourcing (1)
- framework (1)
- functional web testing tools (1)
- grassland (1)
- healthcare (1)
- image warping (1)
- internet of things (1)
- iot development platforms (1)
- leap motion (1)
- mPayments (1)
- machine learning (1)
- micro-agent (1)
- multi-agent systems (1)
- performance optimization (1)
- simulation (1)
- social simulation (1)
- stereoscopic rendering (1)
- survey in Koblenz (1)
- tracking (1)
- vegetation modeling (1)
- visualization (1)
- volume rendering (1)
- warp divergence (1)
The thesis develops and evaluates a hypothetical model of the factors that influence user acceptance of weblog technology. Previous acceptance studies are reviewed, and the various models employed are discussed. The eventual model is based on the technology acceptance model (TAM) by Davis et al. It conceptualizes and operationalizes a quantitative survey conducted by means of an online questionnaire, strictly from a user perspective. Finally, it is tested and validated by applying methods of data analysis.
Public electronic procurement (eProcurement), here electronic sourcing (eSourcing) in particular, is almost certainly on the agenda when eGovernment experts meet. Not surprisingly is eProcurement the first high-impact service to be addressed in the European Union- recent Action Plan. This is mainly dedicated to the fact that public procurement makes out almost 20% of Europe- GDP and therefore holds a huge saving potential. To some extent this potential lies in the common European market, since effective cross-boarder eSourcing solutions can open many doors, both for buyers and suppliers. To achieve this, systems and processes and tools, need to be adoptable, transferable as well as be able to communicate with each other. In one word, they need to be interoperable. In many relevant domains, interoperability has reached a very positive level, standards have been established, workflows been put in place. In other domains however, there is still a long road ahead. As a consequence it is crucial to define requirements for such interoperable eSourcing systems and to identify the progress in research and practice.
The internet is becoming more and more important in daily life. Fundamental changes can be observed in the private sector as well as in the public sector. In the course of this, active involvement of citizens in planning political procedures is more and more supported electronically. The expectations culminate in the assumption that information and communication technology (ICT) can enhance civic participation and reduce disenchantment with politics. Out of these expectations, a lot of eparticipation projects were initiated in Germany. Initiatives were established, e.g. the "Initiative eParticipation", which gave many incentives of electronic participation for policy and administration in order to strengthen decision-making processes with internet supported participation practices. This thesis consists of two major parts. In the first part, definitions of the essential terms are presented. The position of e-participation within the dimension of ebusiness is pointed out. In order to explain e-participation, basics of the classical offline participation are delivered. It will be shown that a change is in progress, not only because of the deployment of ICT. Subsequently, a framework to characterize eparticipation is presented. The European Union is encouraging the implementation of e-participation. So, the city of Koblenz should be no exception. But what is the current situation in Koblenz? To provide an answer to this question, the status quo was examined with the help of a survey among the citizens of Koblenz, which was developed, conducted and evaluated. This is the second major part of this thesis.
Entwicklung eines Regelungsverfahrens zur Pfadverfolgung für ein Modellfahrzeug mit Sattelanhänger
(2009)
Besides the progressive automation of internal goods traffic, there is an important area that should also be considered. This area is the carriage of goods in selected external areas. The use of driverless trucks in logistic centers can report economic efficiency. In particular, these precise control procedures require that trucks drive on predetermined paths. The general aim of this work is the adaption and evaluation of a path following control method for articulated vehicles. The differences in the kinematic behavior between trucks with one-axle trailer and semi-trailer vehicles will be emphasized. Additionally, the characteristic kinematic properties of semi-trailers for the adaptation of a control procedure will be considered. This control procedure was initially designed for trucks with one-axle trailer. It must work in forwards and backwards movements. This control process will be integrated as a closed component on the control software of the model vehicle. Thus, the geometry of the model vehicle will be specified, and the possible special cases of the control process will be discovered. The work also documents the most relevant software components of the implemented control process.
The development of a pan-European public E-Procurement system is an important target of the European Union to enhance the efficiency, transparency and competitiveness of public procurement procedures conducted within the European single market. A great obstacle for cross-border electronic procurement is the heterogeneity of national procurement systems in terms of technical, organizational and legal differences. To overcome this obstacle the European Commission funds several initiatives that contribute to the aim of achieving interoperability for pan-European public procurement. Pan European Public Procurement OnLine (PEPPOL) is one of these initiatives that aims at piloting an interoperable pan-European E-Procurement solution to support businesses and public purchasing entities from different member states to conduct their procurement processes electronically.rnrnAs interoperability and inter-connection of distributed heterogeneous information systems are the major requirements in the European procurement domain, and the VCD sub-domain in particular, service-oriented architecture (SOA) seems to provide a promising approach to realize such an architecture, as it promotes loose coupling and interoperability. This master thesis therefore discusses the SOA approach and how its concepts, methodologies and technologies can be used for the development of interoperable IT systems for electronic public procurement. This discussion is enhanced through a practical application of the discussed SOA methodologies by conceptualizing and prototyping of a sub-system derived from the overall system domain of the Virtual Company Dossier. For that purpose, important aspects of interoperability and related standards and technologies will be examined and put into the context of public electronic procurement. Furthermore, the paradigm behind SOA will be discussed, including the derivation of a top-down development methodology for service-oriented systems.
Mobile payment has been a payment option in the market for a long time now and was predicted to become a widely used payment method. However, over the years, the market penetration rate of mPayments has been relatively low, despite it having all characteristics required of a convenient payment method. The primaryrnreason for this has been cited as a lack of customer acceptance mainly caused due to the lack of perceived security by the end-user. Although biometric authentication is not a new technology, it is experiencing a revival in the light of the present day terror threats and increased security requirements in various industries. The application of biometric authentication in mPayments is analysed here and a suitable biometric authentication method for use with mPayments is recommended. The issue of enrolment, human and technical factors to be considered are discussed and the STOF business model is applied to a BiMoP (biometric mPayment) application.
Multi-agent systems are a mature approach to model complex software systems by means of Agent-Oriented Software Engineering (AOSE). However, their application is not widely accepted in mainstream software engineering. Parallel to this the interdisciplinary field of Agent-based Social Simulation (ABSS) finds increasing recognition beyond the purely academic realm which starts to draw attention from the mainstream of agent researchers. This work analyzes factors to improve the uptake of AOSE as well as characteristics which separate the two fields AOSE and ABSS to understand their gap. Based on the efficiency-oriented micro-agent concept of the Otago Agent Platform (OPAL) we have constructed a new modern and self-contained micro-agent platform called µ². The design takes technological trends into account and integrates representative technologies, such as the functionally-inspired JVM language Clojure (with its Transactional Memory), asynchronous message passing frameworks and the mobile application platform Android. The mobile version of the platform shows an innovative approach to allow direct interaction between Android application components and micro-agents by mapping their related internal communication mechanisms. This empowers micro-agents to exploit virtually any capability of mobile devices for intelligent agent-based applications, robotics or simply act as a distributed middleware. Additionally, relevant platform components for the support of social simulations are identified and partially implemented. To show the usability of the platform for simulation purposes an interaction-centric scenario representing group shaping processes in a multi-cultural context is provided. The scenario is based on Hofstede's concept of 'Cultural Dimensions'. It does not only confirm the applicability of the platform for simulations but also reveals interesting patterns for culturally augmented in- and out-group agents. This explorative research advocates the potential of micro-agents as a powerful general system modelling mechanism while bridging the convergence between mobile and desktop systems. The results stimulate future work on the micro-agent concept itself, the suggested platform and the deeper exploration of mechanisms for seemless interaction of micro-agents with mobile environments. Last but not least the further elaboration of the simulation model as well as its use to augment intelligent agents with cultural aspects offer promising perspectives for future research.
Tractography on HARDI data
(2011)
Diffusion weighted imaging is an important modality in clinical imaging and the only possibility to gain insight into the human brain noninvasively and in-vivo. The applications of this imaging technique are diversified. It is used to study the brain, its structure, development and the functionality of the different areas. Further, important fields of application are neurosurgical planning, examinations of pathologies, investigation of Alzheimer-, strokes, and multiple sclerosis. This thesis gives a brief introduction to MRI and diffusion MRI. Based on this, the mostly used data representation in diffusion MRI in clinical imaging, the diffusion tensor, is introduced. As the diffusion tensor suffers from severe limitations new techniques subsumed under the term HARDI (high angular resolution diffusion imaging) are introduced and discussed in detail. Further, an extensive introduction to tractography, approaches that aim at reconstructing neuronal fibers, is given. Based on the knowledge fromthe theoretical part established tractography algorithms are redesigned to handle HARDI data and, thus, improve the reconstruction of neuronal fibers. Among these algorithms, a novel approach is presented that successfully reconstructs fibers on phantom data as well as on human brain data. Further, a novel global classification approach is presented to cluster voxels according to their diffusion properties.
Identifying reusable legacy code able to implement SOA services is still an open research issue. This master thesis presents an approach to identify legacy code for service implementation based on dynamic analysis and the application of data mining techniques. rnrnAs part of the SOAMIG project, code execution traces were mapped to business processes. Due to the high amount of traces generated by dynamic analyses, the traces must be post-processed in order to provide useful information. rnrnFor this master thesis, two data mining techniques - cluster analysis and link analysis - were applied to the traces. First tests on a Java/Swing legacy system provided good results, compared to an expert- allocation of legacy code.