How To Write A Paper On The Social Semantic Web

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1 Sören Auer, Christian Bizer, Claudia Müller, Anna V. Zhdanova (Eds.) The Social Semantic Web 2007 Proceedings of the 1 st Conference on Social Semantic Web (CSSW) September 26-28, Leipzig, Germany Gesellschaft für Informatik 2007

2 Lecture Notes in Informatics (LNI) - Proceedings Series of the German Informatics society (GI) Volume P-113 ISBN ISSN Volume Editors Dr. Sören Auer Universität Leipzig, Institut für Informatik Johannisgasse 26, D Leipzig, Germany auer@informatik.uni-leipzig.de Dr. Christian Bizer Freie Universität Berlin, Institut für Produktion, Wirtschaftsinformatik und OR Garystr. 21, D Berlin, Germany chris@bizer.de Claudia Müller Universität Potsdam, Institut für Wirtschaftsinformatik August-Bebel-Str. 89, D Potsdam, Germany cmueller@wi.uni-potsdam.de Dr.Anna V. Zhdanova ftw. Forschungszentrum Telekommunikation Wien Betriebs GmbH Donau-City-Straße 1 / 3, A-1220 Wien, Austria zhdanova@ftw.at Series Editorial Board Heinrich C. Mayr, Universität Klagenfurt, Austria (Chairman, mayr@ifit.uni-klu.ac.at) Jörg Becker, Universität Münster, Germany Ulrich Furbach, Universität Koblenz, Germany Axel Lehmann, Universität der BundeswehrMünchen, Germany Peter Liggesmeyer, TU Kaiserslautern und Fraunhofer IESE, Germany Ernst W. Mayr, TechnischeUniversität München, Germany Heinrich Müller, Universität Dortmund, Germany Heinrich Reinermann, Hochschule für Verwaltungswissenschaften Speyer, Germany Karl-Heinz Rödiger, Universität Bremen, Germany Sigrid Schubert, Universität Siegen, Germany Dissertations Dorothea Wagner, Universität Karlsruhe, Germany Seminars Reinhard Wilhelm, Universität des Saarlandes, Germany Gesellschaft fürinformatik, Bonn 2007 printed by Köllen Druck+Verlag GmbH, Bonn

3 Preface We are pleased to welcome you to the 1st Conference on Social Semantic Web (CSSW) and wish you a wonderful stay in Leipzig and an enjoyable and rewarding conference participation! The concept of Social Software was characterizes a variety of software and services on the Web, which enable new ways of communication and social interaction for creating large content bases from a multitude of user contributions. The Semantic Web is an extension of the current Web aiming at enhanced search and navigation facilities and at information integration from multiple sources. How the different approaches of Social Software and Semantic Web can be combined in a synergetic way? - this question appears more and more often in current research and development. The aim of the Conference on Social Semantic Web is to provide a podium for exploration of Social Software concepts for the bootstrapping of the Semantic Web and lifting Social Software to the semantic collaboration level. CSSW aims at combining three different perspectives on the Social Semantic Web: the business and entrepreneurial perspective focusing on the added value of specific social semantic web applications, the technical perspective enabling and supporting the exploitation of the swarm intelligence of social networks and the social perspective, which explores motivations, benefits and emergent effects of the Social Semantic Web. CSSW targets to bring these three perspectives together, to widen existing horizons, to create novel ideas and to find new ways of understanding this emerging field. The event runs as a two day sub-conference of the Conference on Software, Agents, and Services for Business, Research and E-Sciences (SABRE) and comprises presentations of 9 full and 6 poster and demonstration peer-reviewed papers. In addition, CSSW also includes a keynote by Kingsley Idehen on Hello Data Web Exposing the Data Web, a panel discussion, further late-breaking demo and poster presentations and a special session with 4 papers from the collaborative research project SoftWiki - Distributed, End-user Centered Requirements Engineering for Evolutionary Software Development. Submissions did not yet reach the level of multi-disciplinarity which we hoped to achieve. The CSSW contributions can be categorized into papers describing (i) models and concepts for social semantic collaboration, (ii) technical support systems, and (iii) applications. Thus, the social sciences and economy communities could have gained more representation. However, the general interest and author feedback encouraged us at reviving CSSW in the next year and we look forward to attracting more multidisciplinary contributions and fostering the exchange between the stakeholder communities of the Social Semantic Web. We thank the SABRE organizers who helped us tremendously by caring about most of the logistics and overall technical organization. We are grateful to the CSSW keynote speaker and to the members of the program committee who completed the reviews in a quick turnaround time. We also acknowledge the support of GI e.v. and Leipziger Informatik Verbund. Sören Auer, Christian Bizer, Claudia Müller, Anna V. Zhdanova

4 Programme Committee Andreas Blumauer, punkt.netservices, Austria John G. Breslin, DERI, Ireland Jorge Cardoso, University of Madeira, Spain Richard Cyganiak, FU Berlin, Germany Jörg Diederich, L3S, Germany Sebastian Dietzold, Universität Leipzig, Germany Orri Erling, OpenLink SW,UK Kai Fischbach, Universität Köln, Germany Walter Goix, Telecom Italia, Italy Andreas Harth, National University of Ireland,Ireland Tom Heath,Open University, UK Florian Heidecke, Universität St. Gallen, Switzerland Ceriel Jacobs, Vakantieland, The Netherlands Dongwon Jeong, Kunsan National University, Korea Jason J. Jung, Inha University, Korea Berit Jungmann, T-Systems MMS, Germany Markus Krötzsch, AIFB University of Karlsruhe, Germany JensLehmann, Universität Leipzig,Germany Peter Mika, Yahoo! ResearchBarcelona, Spain Volkmar Pipek, Universität Siegen, Germany Axel Polleres, Universidad Rey Juan Carlos, Spain Thomas Riechert, Universität Leipzig, Germany Harald Sack, Hasso Plattner Institut, Germany Leo Sauermann, DFKI, Germany Sebastian Schaffert, salzburgresearch, Austria Jan Schmidt, Bamberg, Germany Frank Schönefeld, T-Systems MMS, Germany Christian Stegbauer, Goethe-Universität, Frankfurt, Germany Martin Strohbach, NEC Europe, Europe Kim Viljanen, Helsinki University of Technology, Finland Jakob Voss, Wikimedia e.v., Germany Jürgen Ziegler, Universität Duisburg-Essen, Germany

5 CSSW is supported by the following organizations and projects: CSSW is a sub-conference of SABRE GI-Fachgruppe Methoden und Werkzeuge zur Entwicklung interaktiver Systeme (INSYDE) Leipziger Informatik Verbund Project, funded by BmBF as part of the research initiative Software Engineering 2006

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7 Table of Contents Key Note Abstract Hello Data Web - Exposing the Data Web 9 Kingsley Idehen Regular Papers Alternative Searching Services: Seven Theses on the Importance of Social Bookmarking 11 Gernot Graefe, Christian Maaß, Andreas Heß Collaborative Web-Publishing with a Semantic Wiki 23 Rico Landefeld, Harald Sack Weaving Space into the Web of Trust: An Asymmetric Spatial Trust Model for Social Networks 35 Mohamed Bishr A Prototype to Explore Content and Context on Social Community Sites 47 Uldis Boj ā rs, Benjamin Heitmann, Eyal Oren RDF Support in the Virtuoso DBMS 59 Orri Erling, Ivan Mikhailov Implementing SPARQL Support forrelational Databases and Possible Enhancements 69 Christian Weiske, Sören Auer Collaborative Metadata for Geographic Information 81 Patrick Maué Mapping Cognitive Models to Social Semantic Spaces - Collaborative Development of Project Ontologies 91 Thomas Riechert, Steffen Lohmann Discovering Unknown Connections - the DBpedia Relationship Finder 99 Jens Lehmann, Jörg Schüppel, Sören Auer Contributions from the Project SoftWiki SWORE - SoftWikiOntology for Requirements Engineering 111 Thomas Riechert, Kim Lauenroth, Jens Lehmann A Processmodel for Wiki-Based Requirements Engineering Supported by Semantic Web Technologies 119 Mariele Hagen, Berit Jungmann, Kim Lauenroth

8 Supporting Requirements Elicitation by Semantic Preprocessing of Document Collections 139 Haiko Cyriaks, Steffen Lohmann, Horst Stolz, VeliVelioglu, JürgenZiegler Ways of Participation and Development of Shared Understanding in Distributed Requirements Engineering 147 Steffen Lohmann, Jürgen Ziegler Demonstration and Poster Papers Galaxy: IBM Ontological Network Miner 157 JohnJudge, Mikhail Sogrin, Alexander Troussov IMAGENOTION - Collaborative Semantic Annotation of Images and Image Parts and Work Integrated Creation of Ontologies 161 Andreas Walter, Gabor Nagypal Semantic Integrator: Semi-Automatically Enhancing Social Semantic Web Environments 167 Steffen Lohmann, Philipp Heim, Jürgen Ziegler Semantic Wikipedia - Checking the Premises 173 Rainer Hammwöhner Exploring the Netherlands on asemantic Path 179 Michael Martin