InnovativeInternet Community Systems I 2 CS 2009

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3 Christian Erfurth, Gerald Eichler,Volkmar Schau(Eds.) 9 th International Conference on InnovativeInternet Community Systems I 2 CS 2009 June 15 17, 2009 Jena, Germany Gesellschaft für Informatik e.v. (GI)

4 Lecture Notes in Informatics(LNI) -Proceedings Series of the Gesellschaft für Informatik(GI) Volume P-148 ISBN ISSN Volume Editors Dr.-Ing. ChristianErfurth Friedrich-Schiller-Universität Jena, Institut für Informatik Ernst-Abbe-Platz 2, Jena, Germany Dipl.-Ing. Gerald Eichler Deutsche TelekomAG, Deutsche TelekomLaboratories, InnovationDevelopment Deutsche-Telekom-Allee 7,64295 Darmstadt, Germany Dipl.-Inf. Volkmar Schau Friedrich-Schiller-Universität Jena, Institut für Informatik Ernst-Abbe-Platz 2, Jena, Germany Series Editorial Board HeinrichC. Mayr, Universität Klagenfurt, Austria (Chairman, Hinrich Bonin, Leuphana-Universität Lüneburg, Germany Dieter Fellner, Technische Universität Darmstadt, Germany UlrichFlegel, SAP Research, Germany UlrichFrank, Universität Duisburg-Essen, Germany Johann-Christoph Freytag, Humboldt-Universität Berlin, Germany UlrichFurbach, Universität Koblenz, Germany Michael Goedicke, Universität Duisburg-Essen Ralf Hofestädt, Universität Bielefeld Michael Koch, Universität der Bundeswehr, München, Germany Axel Lehmann, Universität der Bundeswehr München, Germany Ernst W. Mayr, Technische Universität München, Germany Sigrid Schubert, Universität Siegen, Germany Martin Warnke, Leuphana-Universität Lüneburg, Germany Dissertations Dorothea Wagner, Universität Karlsruhe, Germany Seminars Reinhard Wilhelm, Universität des Saarlandes, Germany Thematics Andreas Oberweis, Universität Karlsruhe (TH) Gesellschaft für Informatik, Bonn2009 printed by Köllen Druck+Verlag GmbH, Bonn

5 Foreword Considerations onthe History of the I 2 CS With the wide use of the Internet, it becomes more and more clear that an efficient global use of resources requires a joint discussion of problems of computer networks, contents and user behavior. This needs also the applicationofmoderntheoretical approaches for analysis and synthesis of efficient service structures. In this context, researchers from the universities of Ilmenau, Rostock and Leipzig started investigations under the title "Context-based search in large decentralized networks" which finally resulted in aresearch project founded by the German Research Association (DFG). InJune 2001, Thomas Böhme and Herwig Unger organized the very first international workshop on"innovative Internet Computing Systems (IICS)", with this motivation, just as a small meeting to present their ideas and the first research results within a bigger auditory in Ilmenau (Thuringia). Consequently, the main topics were from the area of computer networks, text processing and data mining as well as theoretical contributions the main research areas of the participating teams from these three locations. After two more conferences had been organized in the frame of the project cooperation in Germany namely in Kühlungsborn (2002) and Leipzig (2003), the year 2004 was a milestone inthe history ofthe I 2 CS conference because two major changes appeared. Following a trend in research, the name of the conference was changed into "Innovative Internet Community Systems" just a slight change but representing the huge development in the Internet area, to consider the upcoming social networks and community systems. In addition, this conference was the first one held abroad in Guadalajara (Mexico) to underline the international importance and world wide timelines of the topics addressed. Due to alot of colleagues which visit the I 2 CS regularly and volunteering for this event, in 2005 to 2008 the conference was organized annually in Paris (France), Neuchâtel (Switzerland), Munich (Germany) and Martinique (France). Of course, the broad interest in the Internet and the World Wide Web generated a lot of similar conferences within these years and it becomes more and more difficult to attract new participants. Due to alot of colleagues feeling astrong tie to our event, I 2 CS could survive this difficult time. From now on, alternately an international and a German location will be selected by the steering committee to arrange the three-days event which has reached the statusofaninternational conference. The Innovative Internet Community Systems conference in 2009 is quite another milestone: not only because of the conference returned to Germany once more. With the engagement for our yearly event by Gerald Eichler, Christian Erfurth and Volkmar Schau, traditionally inthe 3 rd week of June, anew era of I 2 CS has been started. In the program of the 2009 th conference you will find completely renewed topics, acommitment to a reliable publisher as well as many more people involved in the organization of the event. All this was possible since the organizers started a new, not only financial cooperation with the German Society of Informatics (GI) as well as with Deutsche Telekom Laboratories, Germany, which has been so successful that we hope for its consequent continuation within the next years.

6 However, with a limitation to about 50 participants and the continued hard peer review selection ofpapers, I 2 CS stays asmall conference where personal contacts are easily possible in a quiet inspiring atmosphere, discussion and brainstorming meetings in small groups are encouraged and significantly contribute to the success and special flair of the conference. Of course, we hope to continue this tradition with our next, the 10 th I 2 CS conference, in Bangkok(Thailand) in2010. With kind regards on behalfofthe whole I 2 CS steeringcommittee Herwig Unger, Fernuniversität Hagen, Germany Thomas Böhme, Technische Universität Ilmenau, Germany

7 Preface AShortGuide to I 2 CS 2009 "Tradition meets Innovation" that isthe promising motto of the 9 th International Conference oninnovative Internet Community Systems (I 2 CS). Topics, beyond the state of the art, are discussed in an atmosphere of grand tradition. In Jena, located in Thuringia the green heart of Germany at the banks of the river Saale, Johann Wolfgang von Goethe, Friedrich Schiller, Georg Wilhelm Friedrich Hegel, and Johann Gottlieb Fichte left their mark on intellectual life. Ernst Abbe, Carl Zeiss, and Otto Schott laid the foundations for economic prosperity in the optical industries. Germany's "Science City 2008" with its 450 years old Friedrich Schiller University will provide an excellent venue for the I 2 CS's conference and workshop topics. In the context of the I 2 CS, weare seeking for innovation inthe area of community systems. The rapid evolution of web technologies and rich mobile devices provide the chance to enhance ICT support for communities on the next quality level. Trying to achieve this, we provoke new research questions in a wide range of connected fields. Besides emerging technologies, social aspects come into spotlight too for a more convenient daily life of communities. In search of innovative solutions, multi-disciplinary collaboration among researchers and industry partners is essential. Hence, the goal of this conference is to bring together researchers, experts, and practitioners from various areas related tonovel Internet Community Systems, enhancingthe Web x.0 paradigms. The selection ofi 2 CS topics 2009 encompasses awide range of aspects, bundled into the areas: foundations, technology, applications as well as socializations. Foundations Theories, models, algorithms for communities Distributed algorithms and simulation models Game theory, graph theoryand cost models Innovative communicationprotocols Self organizationand selfstabilization Security and privacy protection Interoperability and IT-governance Technology Distributed architecturesand frameworks Service-oriented architectures for communities Peer-to-peer and grid architectures Distributed community middleware for Web x.0 Software agents for community support Adaptive cooperative information systems Community management in ad-hoc environments Informationretrieval and distributed ontologies

8 Applications and socialization Communities on the move Mobile Internet applications'experiences Context and locationawareness Personalizationofcomponents and tools Personal social networks and user behavior Social and business aspects of user generated content Expert profiles, collaborative filteringand matching Domain specific languagesfor semantic design The conference track is composed of one keynote, two invited talks, one panel, a workshop, dedicated to mobile agent technologies and six presentation sessions. The sessions are focusing on the following subjects: Knowledge and Content Management (pp. 13) Cooperative InformationSystems (pp. 47) Communitiesonthe Move (pp. 83) Web portals and Usability (pp. 121) Graph Theory, Routingand Layering (pp. 147) Semantic Web Technologies (pp. 181) To ensure a high quality of contributions, all proposed papers were subject to two up to four reviews by members of the program committee. Some originally weak papers experienced an intensive iterative improvement process. Only accepted papers are part of these conference proceedings, following the order of the conference program. We would like tothank the members of the program committee and additional reviewers for their patient and flexible support. We wish the conference agreat success. For further details, please explore the conference web site atthe URLhttp://i2cs.uni-jena.de/. Welcome to Jena. Enjoy your stay! Yours I 2 CS 2009 organizingteam Gerald Eichler, Deutsche Telekom Laboratories, Darmstadt/Berlin, Germany Christian Erfurth, Friedrich-Schiller-Universität Jena/GI e.v., Germany Volkmar Schau, Friedrich-Schiller-Universität Jena, Germany

9 Program Committee S. Albayrak, TUBerlin, Germany H. Arnold, Deutsche Telekom Laboratories, Germany G. Babin, HECMontreal, Canada A. Böhm, T-Systems, Germany T. Böhme, TU Ilmenau, Germany D. Chase, T-Mobile International, United Kingdom G. Eichler, Deutsche TelekomLaboratories, Germany C. Erfurth, Friedrich Schiller UniversityJena, Germany H. Fouchal, University of Antilles-Guyane, France W. Halang, FU Hagen/GI, Germany G. Heyer, LeipzigUniversity, Germany H. Höpfner, International UniversityBruchsal /GI, Germany P. Hunel, University of Antilles-Guyane, France J. Kacprzyk, Polish Academy of Science, Poland V. Kirova, Alcatel-Lucent, U.S.A. P. Kropf, UniversityofNeuchâtel, Switzerland K. Kyandoghere, University of Klagenfurt, Austria U. Lechner, University of Bundeswehr München, Germany F. Lehner, PassauUniversity /GI, Germany P. Meesad, KingMongkut'sUniversityofTechnology North Bangkok, Thailand A. Mikler, University of Northern Texas, U.S.A. C. Prehofer, Nokia Research Center, Finland L. Rokach, Ben-Gurion University, Israel W. Rossak, FriedrichSchiller UniversityJena, Germany H. Sack, HPI, University Potsdam, Germany V. Schau, Friedrich Schiller UniversityJena, Germany H. Schilder, nexum AG/GI, Germany H. Unger, FU Hagen, Germany K. S. Tang, City UniversityHongKong, Hong Kong M. Welsch, IBM, Germany L. Wienhofen, SINTEF, Norway Additional Reviewers B. Berde P.-C. Chen P. Kapauan K.-H. Lüke M. Moganti M. Will Organizing Committee C. Erfurth, Friedrich Schiller UniversityJena, Germany (Conference Chair) G. Eichler, Deutsche Telekom Laboratories, Germany(Conference Chair) V. Schau, Friedrich Schiller UniversityJena, Germany (Program Chair)

10 Sponsors Organized by Supported by GESELLSCHAFT FÜR INFORMATIK E.V. Regionalgruppe Ostthüringen/Jena &Fachgruppe MMS

11 Table of Contents Session1.Knowledge and Content Management 13 Personal Knowledge Management: The role ofweb 2.0Tools for Managing of Knowledge atindividual and Collective Level 15 Kathrin Kirchner, Liana Razmerita, Thierry Nabeth Enabling Social Media content qualityassurance usingsna 27 Maria-Amparo Sanmateu, Matthias Trier, Andreas Rederer, Andreas Lienicke Contributing and socialization -biaxial segmentation for usersgenerating content 36 Hendrik Send, Daniel Michelis Session 2. Cooperative Information Systems 47 Enhancing group communicationusing an IMS-based community based infrastructure 49 Zuzana Krifka Dobes, Karl-HeinzLüke, Andreas Rederer Towards Internet Communities tohelp Improve the Wellbeingand RehabilitationofClinicallyStable Chronic Patients 60 Leendert Wienhofen, Ingrid Svagård Bi-directional DistributionofeLearningContent for Cross-technology LearningCommunities 70 Raphael Zender, Enrico Dressler, Ulrike Lucke, Djamshid Tavangarian Session 3. Communitiesonthe Move 83 The Development of apersonal Mobile GIS 85 Ka-ho Ng, Wallace Tang FacebookAgent -an Agent-Enhanced Social (Mobile) Network Application 97 Volkmar Schau, Christian Erfurth, René Pasold, Wilhelm Rossak Integrated Solutions and Services in Public Transport onmobile Devices 109 Karl-Heinz Lüke, Holger Mügge, MatthiasEisemann, Anke Telschow Session 4. Web Portals and Usability 121 AHybrid Approach to Identifying User Interests in Web Portals 123 Fedor Bakalov, Birgitta König-Ries, Andreas Nauerz, Martin Welsch Web 2.0 asanautopoietic system -implications for innovative web-interfaces Kathrin Vent

12 Session 5. Graph Theory,Routing and Layering 147 Agame theoretic approach to graph problems 149 Thomas Böhme, Jens Schreyer SplittingOverlayNetwork for Peer-to-Peer-based MassivelyMultiplayer Online Games 157 Cheng Liu, Wentong Cai An Adaptive PolicyRouting with Thermal Field Approach 169 Lada-On Lertsuwanakul, Herwig Unger Session 6. Semantic WebTechnologies 181 FromCommunitytowards Enterprise -ataxonomy-based search for experts 183 Gerald Eichler, Andreas Lommatzsch, Thomas Strecker, Danuta Ploch, Conny Strecker, Robert Wetzker RecommendingRelated ArticlesinWikipedia via atopic-based Model 194 Wongkot Sriurai, Phayung Meesad, Choochart Haruechaiyasak Linkingtele-TASK video portal tothe Semantic Web 204 Harald Sack, Bert Baumann,Andreas Groß, Christoph Meinel Index of Authors 217