@inproceedings{19812, abstract = {{Modern peer-to-peer networks consist of several network layers and distributed algorithms providing features like indexing, resource balancing, entry protocols, security, anonymity, and cryptography. Since peer-to-peer networks are highly dynamic, a fundamental task in the design of these networks is to provide high connectivity. We propose a solution by distributed random link exchange algorithms such that the overlay network can be a connected random graph or use a random graph as backbone. Random graphs are expander graphs have logarithmic diameter, high node connectivity, excellent communication properties, and are expander graphs with high probability. In summary: they are an excellent choice to improve the stability and robustness of a dynamic network.}}, author = {{Schindelhauer, Christian and Mahlmann, Peter}}, booktitle = {{The European Integrated Project "Dynamically Evolving, Large Scale Information Systems (DELIS), Proceedings of the Final Workshop}}, number = {{222}}, pages = {{1--22}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}}, title = {{{Random Graphs for Peer-to-Peer Overlays}}}, year = {{2008}}, } @book{25833, author = {{Meyer auf der Heide, Friedhelm}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}}, title = {{{The European Integrated Project "Dynamically Evolving, Large Scale Information Systems (DELIS)", Proceedings of the Final Workshop, Barcelona, February 27-28, 2008}}}, volume = {{222}}, year = {{2008}}, } @inproceedings{8000, abstract = {{Rapid and precise effort estimation of software development projects is crucial in IT industry. In a case study, the Use Case Point (UCP) method was applied to 15 commercial software development projects. The estimated efforts were compared with the incurred project efforts. We measured a standard deviation of 42 %. This is not acceptable for industrial usage. Therefore, we propose appropriate improvements of the Use Case Point method leading to significantly higher estimation accuracy with only 20 % standard deviation. The contribution of this paper is a detailed description of the improved Use Case Point method.}}, author = {{Frohnhoff, Stephan and Engels, Gregor}}, booktitle = {{Setting Quality Standards, Proceedings of the 11th International Conference on Quality Engineering in Software Technology (CONQUEST 2008), Potsdam (Germany)}}, pages = {{15--32}}, publisher = {{dpunkt Verlag}}, title = {{{Revised Use Case Point Method - Effort Estimation in Development Projects for Business Applications}}}, year = {{2008}}, } @inproceedings{30479, author = {{Knoke, Tobias and Schneider, Tobias and Böcker, Joachim}}, booktitle = {{2007 European Conference on Power Electronics and Applications}}, publisher = {{IEEE}}, title = {{{Construction of a hybrid electrical racing kart as a student project}}}, doi = {{10.1109/epe.2007.4417234}}, year = {{2008}}, } @book{36974, author = {{Weber, Jutta and Capurro, Rafael and Christaller, Thomas and Datteri, Edoardo and Giordani, Alessandro and Laschi, Cecilia and Mock, Michael and Nagenborg, Michael and Salvini, Pericle and Tamburrini, Guglielmo}}, title = {{{Ethically Motivated Recommendations for EU Policies and Regulations concerning Robotics and its Convergence with Bionic and Software Agent Technologies. Deliverable 6 of the EU-Project ETHICBOTS. Emerging Technoethics of Human Interaction with Communication, Bionic and Robotic Systems (SAS 6 – 017759)}}}, year = {{2008}}, } @book{36973, author = {{Weber, Jutta and Capurro, Rafael and Christaller, Thomas and Datteri, Edoardo and Giordani, Alessandro and Laschi, Cecilia and Mock, Michael and Nagenborg, Michael and Salvini, Pericle and Tamburrini, Guglielmo}}, title = {{{Techno-Ethical Case-Studies in Robotics, Bionics, and Related AI Agent Technologies. Deliverable 5 of the EU-Project ETHICBOTS. Emerging Technoethics of Human Interaction with Communication, Bionic and Robotic Systems (SAS 6 – 017759)}}}, year = {{2008}}, } @book{17566, author = {{Meyer auf der Heide, Friedhelm}}, isbn = {{ISBN 978-3-939350-41-5}}, publisher = {{Fakultät für Elektrotechnik, Informatik und Mathematik, Universität Paderborn}}, title = {{{The European Integrated Project "Dynamically Evolving, Large Scale Information Systems (DELIS)"}}}, volume = {{222}}, year = {{2008}}, } @inproceedings{1986, abstract = {{Service level agreements (SLAs) are powerful instruments for describing all obligations and expectations in a business relationship. It is of focal importance for deploying Grid technology to commercial applications. The EC-funded project HPC4U (Highly Predictable Clusters for Internet Grids) aimed at introducing SLA-awareness in local resource management systems, while the EC-funded project AssessGrid introduced the notion of risk, which is associated with every business contract. This paper highlights the concept of planning based resource management and describes the SLA-aware scheduler developed and used in these projects.}}, author = {{Battré, Dominic and Hovestadt, Matthias and Kao, Odej and Keller, Axel and Voss, Kerstin}}, booktitle = {{Proc. Workshop of the UK PLANNING AND SCHEDULING Special Interest Group (PlanSIG)}}, title = {{{Planning-based Scheduling for SLA-awareness and Grid Integration}}}, year = {{2007}}, } @inproceedings{831, author = {{van der Stok, Peter and Karl, Holger and De Ambroggi, Fabio and Decotignie, JeanDominique and Siegemund, Frank and Lokhorst, Kees and Hellenschmidt, Michael}}, booktitle = {{Constructing Ambient Intelligence - AmI 2007 Workshops Darmstadt, Germany, November 7-10, 2007 Revised Papers}}, pages = {{426----429}}, title = {{{WASP - Wirelessly Accessible Sensor Populations: A Project Overview}}}, doi = {{10.1007/978-3-540-85379-4_49}}, year = {{2007}}, } @inproceedings{4497, author = {{Sporer, Thomas and Heinze, Nina and Jenert, Tobias and Reinmann, Gabi}}, keywords = {{Problem Solving Competencies, E-Portfolio}}, location = {{Kreta }}, title = {{{Student Learning Communities in the Project-Centered Study Program" Problem-Solving Competencies"}}}, year = {{2007}}, } @phdthesis{7579, abstract = {{Today, mobility is one of the most important market and technology trend within information and communication technology. As the demand for rapid deployment of dependable mobile applications increases, middleware for mobile systems is emerging as one of the most active areas of system research in mobility. The middleware is a set of distributed software services that exists between distributed operating systems and mobile applications. The key to the middleware is to provide support across the mobile application domains, help application developers overcome the complexity and problems brought by mobility, and enhance dependability and usability of developed mobile applications. The criticality and pervasiveness of middleware for mobile systems is continually growing. However, the design and development of the middleware are difficult tasks, and it is not easy to ensure the quality of a developed middleware. This is mainly caused by the increasing complexity of the middleware. In addition, the great diversity of this area makes it very difficult for the designers to reuse the already established design knowledge or successful experience when building new systems. All these make the design process quite inefficient and unpredictable, and therefore risking the project. “One man’s magic is another man’s engineering”. Engineering design is much more routine than innovative. Founding on this fundamental notion in software engineering, we develop an architectural style-based approach to deal with the problems in the thesis. We build architectural styles for a class of related middleware. The style represents a common form of design, which originates from the results that practitioners have achieved in one area. The style is formulated to repeat successes and avoid failures from previous projects. When building a new middleware, the designers and developers do not need to explore all possible alternatives for its supported architecture. Instead, they can use the architectural style that is effective for the middleware. They can define the design as instances of the style, or they can use the style as a reference model for further improvement and development. By structuring the design space for a family of related middleware, the style can drastically simplify the process of building a middleware, reduce costs of implementation through reusable infrastructure, and improve system integrity through style-specific analysis and checks. We develop the approach based on UML-like meta modeling and graph transformation techniques to support sound methodological principles, powerful modeling, formal analysis and refinement. The approach consists of several main parts: the modeling language that supports specification of the style and mobility, the refinement formalization that ensures that an abstract style is correctly refined to a concrete one, as well as the consistency check framework that validates behavioral consistency between two styles on different abstract layers. With the Fujaba simulation tool support, we also develop a style-based engineering process that helps us to efficiently develop correct and consistent styles. Besides, it allows a seamless integration of our approach into the well-known object oriented design. By providing a concrete example of how to construct the style for a class of related middleware, and how to use the style to help the design and development of a new middleware, we show that the architectural style-based approach is useful and practical.}}, author = {{Guo, Ping}}, title = {{{Architectural Style-based Modeling and Simulation of Middleware for Mobile Systems}}}, year = {{2007}}, } @article{5574, author = {{Weller, I and Kabst, Rüdiger}}, journal = {{Die Betriebswirtschaft (DBW).}}, number = {{3}}, pages = {{299--318}}, title = {{{Determinanten des Downsizings: Eine empirische Analyse mit den Daten des Cranfield Project on International HRM.}}}, volume = {{67}}, year = {{2007}}, } @inproceedings{18351, abstract = {{In this paper the ideas of a new research project are presented. The material flow simu- lator d3FACT insight shall manage multiple parallel and time synchronous simulations to grand the power of real-time visualization in combination with statistical analysis. This research is issued to overcome the conflict of simulation run repetition for a good statistical basis and real-time immersive visualization. A side effect will be the reduc- tion of time needed for simulation experiments. The planned simulation tool has the feature of triggered cloning, i.e., the user can decide during runtime to clone a set of simulations after changing parameters to preserve the original system. The simulations will be aggregated by visualization and statistics. The rendering is planned to overlay several simulations using effects like inking and transparency. Simulation data will be aggregated with statistical functions and diagrams.}}, author = {{Dangelmaier, Wilhelm and Huber, Daniel and Laroque, Christoph and Aufenanger, Mark and Fischer, Matthias and Krokowski, Jens and Kortenjan, Michael}}, booktitle = {{Simulation and Visualization 2006 (SimViS)}}, pages = {{79--88}}, publisher = {{SCS European Publishing House}}, title = {{{d³FACT insight goes parallel - Aggregation of multiple simulations}}}, year = {{2006}}, } @article{9543, abstract = {{An improved concept for ultrasonic hyperthermia of tumors is presented. This concept is based on past experience of a German government supported project [1], which ended in 1984. It offers a low cost alternative to common RF- and microwave methods for hyperthermia of tumors with volumes between 1 and 40 ml at treatment times between 30 and 60 min. Our new version of the system considerably improves the temperature suppression in the healthy tissue around the target area and enables the adjustment of the beam width to the actual tumor size and the field geometry to the depth and shape of the tumor. The applicator can be used for moderate hyperthermia with tissue overheating up to 10 K or for ablation therapy with short high temperature pulses. Its central area is free for the integration of a commercial ultrasonic diagnostic sector scanner or a Doppler flow sensor in order to support the adjustment of the transducer and to monitor the whole area during the therapy.}}, author = {{Lierke, E.G. and Hemsel, Tobias}}, issn = {{0041-624X}}, journal = {{Ultrasonics}}, keywords = {{Moderate hyperthermia}}, pages = {{e341 -- e344}}, title = {{{Focusing cross-fire applicator for ultrasonic hyperthermia of tumors}}}, doi = {{10.1016/j.ultras.2006.07.004}}, volume = {{44, Supplement}}, year = {{2006}}, } @inbook{7549, abstract = {{The current situation of ad hoc development of Web applications reminds us of the software development practices of the 1960s, before it was realized that the development of applications required more than programming expertise. This book counteracts this situation by giving a comprehensive, practice-oriented and thorough insight into the new discipline of Web Engineering. The text highlights the need to examine and re-use the body of knowledge found within software engineering. It demonstrates how to use that knowledge within the Web environment, in order to achieve a highly disciplined and methodological means of producing Web-based software, putting emphasize on current practices, experiences and pitfalls. The book demonstrates the distinctions between software engineering and Web engineering, for instance, the shorter lead times that Web engineering has compared to its software counterpart, whilst also demonstrating the rapid prototyping and agile methods of development needed to meet these criteria. The book covers important topics of Web Engineering, including requirements analysis, design, architectures, technologies, test, operation and maintenance; this is complemented by in-depth knowledge about Web project management and process issues as well as important quality aspects of Web applications like usability, performance and security. An overview of Semantic Web concepts points the way to the development of future Web applications.}}, author = {{Engels, Gregor and Lohmann, Marc and Wagner, Annika}}, booktitle = {{Web Engineering: The Discipline of Systematic Development of Web Applications}}, editor = {{Kappel, B. Pröll, S. Reich, W. Retschitzegger, G.}}, publisher = {{Wiley}}, title = {{{The Web Application Development Process}}}, year = {{2006}}, } @inbook{1990, abstract = {{Grid Computing promises an efficient sharing of world-wide distributed resources, ranging from hardware, software, expert knowledge to special I/O devices. However, although the main Grid mechanisms are already developed or are currently addressed by tremendous research effort, the Grid environment still suffers from a low acceptance in different user communities. Beside difficulties regarding an intuitive and comfortable resource access, various problems related to the reliability and the Quality-of-Service while using the Grid exist. Users should be able to rely, that their jobs will have certain priority at the remote Grid site and that they will be finished upon the agreed time regardless of any provider problems. Therefore, QoS issues have to be considered in the Grid middleware but also in the local resource management systems at the Grid sites. However, most of the currently used resource management systems are not suitable for SLAs, as they do not support resource reservation and do not offer mechanisms for job checkpointing/migration respectively. The latter are mandatory for Grid providers as rescue anchor in case of system failures or system overload. This paper focuses on SLA-aware job migration and presents a work, which is being performed in the EU supported project HPC4U.}}, author = {{Heine, Felix and Hovestadt, Matthias and Kao, Odej and Keller, Axel}}, booktitle = {{Grid Computing: New Frontiers of High Performance Computing}}, editor = {{Grandinetti, Lucio}}, pages = {{185--201}}, title = {{{SLA-aware Job Migration in Grid Environments}}}, doi = {{10.1016/S0927-5452(05)80011-5}}, volume = {{14}}, year = {{2005}}, } @article{7379, abstract = {{eLearning supports the education in certain disciplines. Here, we report about novel eLearning concepts, techniques, and tools to support education in Software Engineering, a subdiscipline of computer science. We call this "Software Engineering eLearning". On the other side, software support is a substantial prerequisite for eLearning in any discipline. Thus, Software Engineering techniques have to be applied to develop and maintain those software systems. We call this "eLearning Software Engineering". Both aspects have been investigated in a large joint, BMBF-funded research project, termed MuSofT (Multimedia in Software Engineering). The main results are summarized in this paper.}}, author = {{Doberkat, Ernst-Erich and Engels, Gregor and Hendrik Hausmann, Jan and Lohmann, Marc and Pleumann, Jörg and Schröder, Jens}}, journal = {{e-learning and education (eleed) Journal}}, title = {{{Software Engineering and eLearning: The MuSofT Project}}}, volume = {{2}}, year = {{2005}}, } @inproceedings{8395, author = {{Rettberg, Achim and Schattkowsky, Tim and Rust, Carsten and Müller, Wolfgang and Josef Rammig, Franz}}, booktitle = {{Proceedings of the EduTech Workshop on New Trends and Technologies in Computer-Aided Learning for Computer-Aided Design (Edutech 2005), Perth (Australia)}}, pages = {{139--147}}, publisher = {{Springer}}, title = {{{The Reconfigurable UML Machine Project Group}}}, volume = {{192}}, year = {{2005}}, } @inproceedings{5661, abstract = {{Spam has become one of the most annoying and costly phenomenon in the Internet. Valid e-mail addresses belong to the most valuable resources of spammers, but little is known about spammers? behavior when collecting and harvesting addresses and spammers? capabilities and interest in carefully directed, consumer-oriented marketing have not been explored yet. Gaining insight into spammers? ways to obtain and (mis)use e-mail addresses is useful in many ways, e.g. for the assessment of the effectiveness of address obscuring techniques and the usability and necessity of hiding e-mail addresses on the Internet. This paper presents a spam honeypot project in progress addressing these issues by systematically placing e-mail addresses in the Internet and analyzing received e-mails. The honeypot?s conceptual framework, its implementation, and first empirical results are presented. Finally, an outlook on further work and activities is provided.}}, author = {{Schryen, Guido}}, booktitle = {{Proceedings of the 6th IEEE Information Assurance Workshop}}, keywords = {{Spam, ham, e-mail, honeypot, address obscuring technique, address taxonomy}}, pages = {{37--41}}, publisher = {{Westpoint}}, title = {{{An e-mail honeypot addressing spammers' behavior in collecting and applying addresses}}}, year = {{2005}}, } @inproceedings{11802, author = {{Haeb-Umbach, Reinhold and Schmalenstroeer, Joerg}}, booktitle = {{Interspeech 2005}}, title = {{{Speech Processing in the Networked Home Environment - A View on the Amigo Project}}}, year = {{2005}}, }