TY - JOUR AU - Benz, Dominik AU - Tso, Karen H. L. AU - Schmidt-Thieme, Lars T1 - Supporting Collaborative Hierarchical Classification: Bookmarks as an Example JO - Special Issue of the Computer Networks journal on Innovations in Web Communications Infrastructure PY - 2007/ VL - IS - SP - EP - UR - M3 - KW - bookmarks KW - classification KW - hierarchical KW - recommender KW - sosbuch L1 - SN - N1 - in press N1 - AB - ER - TY - JOUR AU - Cattuto, Ciro AU - Schmitz, Christoph AU - Baldassarri, Andrea AU - Servedio, Vito D. P. AU - Loreto, Vittorio AU - Hotho, Andreas AU - Grahl, Miranda AU - Stumme, Gerd T1 - Network Properties of Folksonomies JO - AI Communications PY - 2007/ VL - 20 IS - 4 SP - 245 EP - 262 UR - http://www.kde.cs.uni-kassel.de/hotho/pub/2007/aicomm_2007_folksonomy_clustering.pdf M3 - KW - 2007 KW - folksonomies KW - kdubiq KW - myown KW - network KW - properties KW - sosbuch KW - summerschool L1 - SN - N1 - N1 - AB - ER - TY - CONF AU - Grahl, Miranda AU - Hotho, Andreas AU - Stumme, Gerd A2 - T1 - Conceptual Clustering of Social Bookmarking Sites T2 - 7th International Conference on Knowledge Management (I-KNOW '07) PB - Know-Center CY - Graz, Austria PY - 2007/10 M2 - VL - IS - SP - 356 EP - 364 UR - M3 - KW - 2007 KW - bookmarking KW - clustering KW - conceptual KW - folksonomy KW - kdubiq KW - myown KW - social KW - sosbuch KW - summerschool KW - tagging KW - taggingsurvey L1 - SN - N1 - N1 - AB - Currently, social bookmarking systems provide intuitive support for browsing locally their content. A global view is usually presented by the tag cloud of the system, but it does not allow a conceptual drill-down, e. g., along a conceptual hierarchy. In this paper, we present a clustering approach for computing such a conceptual hierarchy for a given folksonomy. The hierarchy is complemented with ranked lists of users and resources most related to each cluster. The rankings are computed using our FolkRank algorithm. We have evaluated our approach on large scale data from the del.icio.us bookmarking system. ER - TY - CONF AU - Jäschke, Robert AU - Marinho, Leandro Balby AU - Hotho, Andreas AU - Schmidt-Thieme, Lars AU - Stumme, Gerd A2 - Kok, Joost N. A2 - Koronacki, Jacek A2 - de Mántaras, Ramon López A2 - Matwin, Stan A2 - Mladenic, Dunja A2 - Skowron, Andrzej T1 - Tag Recommendations in Folksonomies T2 - Knowledge Discovery in Databases: PKDD 2007, 11th European Conference on Principles and Practice of Knowledge Discovery in Databases, Warsaw, Poland, September 17-21, 2007, Proceedings PB - Springer CY - PY - 2007/ M2 - VL - 4702 IS - SP - 506 EP - 514 UR - http://www.kde.cs.uni-kassel.de/hotho/pub/2007/Tag_Recommender_in_Folksonomies_final.pdf M3 - KW - 2007 KW - folksonomy KW - kdubiq KW - myown KW - pagerank KW - recommender KW - social KW - sosbuch KW - summerschool KW - tagging KW - taggingsurvey L1 - SN - 978-3-540-74975-2 N1 - DBLP Record 'conf/pkdd/JaschkeMHSS07' N1 - AB - ER - TY - JOUR AU - Cattuto, Ciro AU - Loreto, Vittorio AU - Servedio, Vito D.P. T1 - A Yule-Simon process with memory JO - Europhysics Letters PY - 2006/ VL - 76 IS - 2 SP - 208 EP - 214 UR - http://www.iop.org/EJ/article/0295-5075/76/2/208/epl9598.html M3 - KW - emergent KW - folksonomy KW - semantics KW - sosbuch KW - tag KW - tagging KW - taggingsurvey L1 - SN - N1 - N1 - AB - The Yule-Simon model has been used as a tool to describe the growth of diverse systems, acquiring a paradigmatic character in many fields of research. Here we study a modified Yule-Simon model that takes into account the full history of the system by means of a hyperbolic memory kernel. We show how the memory kernel changes the properties of preferential attachment and provide an approximate analytical solution for the frequency distribution density as well as for the frequency-rank distribution. ER - TY - CONF AU - Hotho, Andreas AU - Jäschke, Robert AU - Schmitz, Christoph AU - Stumme, Gerd A2 - T1 - Information Retrieval in Folksonomies: Search and Ranking T2 - Proceedings of the 3rd European Semantic Web Conference PB - Springer CY - Budva, Montenegro PY - 2006/06 M2 - VL - 4011 IS - SP - 411 EP - 426 UR - http://www.kde.cs.uni-kassel.de/hotho/pub/2006/seach2006hotho_eswc.pdf M3 - KW - 2006 KW - bibsonomy KW - definition KW - folkrank KW - folksonomy KW - ir KW - kdubiq KW - myown KW - pagerank KW - rank KW - ranking KW - search KW - seminar2006 KW - sosbuch KW - summerschool L1 - SN - 3-540-34544-2 N1 - N1 - AB - ER - TY - CONF AU - Hotho, Andreas AU - Jäschke, Robert AU - Schmitz, Christoph AU - Stumme, Gerd A2 - Avrithis, Yannis S. A2 - Kompatsiaris, Yiannis A2 - Staab, Steffen A2 - O'Connor, Noel E. T1 - Trend Detection in Folksonomies T2 - Proc. First International Conference on Semantics And Digital Media Technology (SAMT) PB - Springer CY - PY - 2006/ M2 - VL - 4306 IS - SP - 56 EP - 70 UR - http://dblp.uni-trier.de/db/conf/samt/samt2006.html#HothoJSS06 M3 - KW - 2006 KW - detection KW - folksonomy KW - myown KW - sosbuch KW - trend L1 - SN - 3-540-49335-2 N1 - dblp N1 - AB - ER - TY - CONF AU - Jäschke, Robert AU - Hotho, Andreas AU - Schmitz, Christoph AU - Ganter, Bernhard AU - Stumme, Gerd A2 - T1 - TRIAS - An Algorithm for Mining Iceberg Tri-Lattices T2 - Proc. 6th ICDM conference PB - CY - Hong Kong PY - 2006/12 M2 - VL - IS - SP - EP - UR - M3 - http://doi.ieeecomputersociety.org/10.1109/ICDM.2006.162 KW - 2006 KW - fca KW - kdubiq KW - mining KW - myown KW - sosbuch KW - summerschool KW - trias L1 - SN - 0-7695-2701-9 N1 - N1 - AB - ER - TY - CONF AU - Marlow, Cameron AU - Naaman, Mor AU - Boyd, Danah AU - Davis, Marc A2 - T1 - Position Paper, Tagging, Taxonomy, Flickr, Article, ToRead T2 - Collaborative Web Tagging Workshop at WWW2006 PB - CY - PY - 2006/05 M2 - VL - IS - SP - EP - UR - http://www.danah.org/papers/WWW2006.pdf M3 - KW - 2.0 KW - folksonomy KW - sosbuch KW - tagging KW - taggingsurvey KW - toread KW - web L1 - SN - N1 - web2.0 papers N1 - AB - In recent years, tagging systems have become increasingly popular. These systems enable users to add keywords (i.e., “tags”) to Internet resources (e.g., web pages, images, videos) without relying on a controlled vocabulary. Tagging systems have the potential to improve search, spam detection, reputation systems, and personal organization while introducing new modalities of social communication and opportunities for data mining. This potential is largely due to the social structure that underlies many of the current systems. Despite the rapid expansion of applications that support tagging of resources, tagging systems are still not well studied or understood. In this paper, we provide a short description of the academic related work to date. We offer a model of tagging systems, specifically in the context of web-based systems, to help us illustrate the possible benefits of these tools. Since many such systems already exist, we provide a taxonomy of tagging systems to help inform their analysis and design, and thus enable researchers to frame and compare evidence for the sustainability of such systems. We also provide a simple taxonomy of incentives and contribution models to inform potential evaluative frameworks. While this work does not present comprehensive empirical results, we present a preliminary study of the photosharing and tagging system Flickr to demonstrate our model and explore some of the issues in one sample system. This analysis helps us outline and motivate possible future directions of research in tagging systems. ER - TY - CONF AU - Schmitz, Christoph AU - Hotho, Andreas AU - Jäschke, Robert AU - Stumme, Gerd A2 - Batagelj, V. A2 - Bock, H.-H. A2 - Ferligoj, A. A2 - Žiberna, A. T1 - Mining Association Rules in Folksonomies T2 - Data Science and Classification (Proc. IFCS 2006 Conference) PB - Springer CY - Berlin/Heidelberg PY - 2006/07 M2 - VL - IS - SP - 261 EP - 270 UR - http://www.kde.cs.uni-kassel.de/hotho/pub/2006/schmitz2006asso_ifcs.pdf M3 - 10.1007/3-540-34416-0_28 KW - 2006 KW - analysis KW - association KW - folksonomy KW - kdubiq KW - myown KW - network KW - rules KW - semantic KW - seminar2006 KW - sosbuch KW - summerschool L1 - SN - 978-3-540-34415-5 N1 - N1 - AB - ER - TY - CONF AU - Xu, Zhichen AU - Fu, Yun AU - Mao, Jianchang AU - Su, Difu A2 - T1 - Towards the Semantic Web: Collaborative Tag Suggestions T2 - Proceedings of the Collaborative Web Tagging Workshop at the WWW 2006 PB - CY - PY - 2006/ M2 - VL - IS - SP - EP - UR - M3 - KW - folksonomy KW - kdubiq KW - recommender KW - sosbuch KW - summerschool KW - tagging KW - taggingsurvey L1 - SN - N1 - N1 - AB - ER - TY - GEN AU - Golder, Scott AU - Huberman, Bernardo A. A2 - T1 - The Structure of Collaborative Tagging Systems JO - PB - AD - PY - 2005/08 VL - IS - SP - EP - UR - http://arxiv.org/abs/cs.DL/0508082 M3 - KW - folksonomy KW - kdubiq KW - network KW - social KW - sosbuch KW - summerschool KW - tagging KW - taggingsurvey L1 - N1 - N1 - AB - ER - TY - JOUR AU - Hammond, T. AU - Hannay, T. AU - Lund, B. AU - Scott, J. T1 - Social Bookmarking Tools (I) JO - D-Lib Magazine PY - 2005/ VL - IS - SP - EP - UR - M3 - KW - bookmarking KW - folksonomy KW - social KW - sosbuch KW - tagging KW - taggingsurvey L1 - SN - N1 - N1 - AB - ER - TY - JOUR AU - Lund, Ben AU - Hammond, Tony AU - Flack, Martin AU - Hannay, Timo T1 - Social Bookmarking Tools (II): A Case Study - Connotea JO - D-Lib Magazine PY - 2005/04 VL - 11 IS - 4 SP - EP - UR - M3 - KW - bookmarking KW - folksonomy KW - social KW - sosbuch KW - tagging KW - taggingsurvey L1 - SN - N1 - N1 - AB - ER - TY - GEN AU - Mazzocchi, Stefano A2 - T1 - Folksologies: de-idealizing ontologies JO - PB - AD - PY - 2005/04 VL - IS - SP - EP - UR - http://www.betaversion.org/~stefano/linotype/news/85/ M3 - KW - folksologie KW - folksonomy KW - ontology KW - sosbuch L1 - N1 - N1 - AB - ER - TY - GEN AU - Michail, Amir A2 - T1 - CollaborativeRank: Motivating People to Give Helpful and Timely Ranking Suggestions JO - PB - AD - PY - 2005/04 VL - IS - SP - EP - UR - \url{http://collabrank.web.cse.unsw.edu.au/collabrank.pdf} M3 - KW - collaborative KW - folksonomy KW - ranking KW - sosbuch L1 - N1 - web20 N1 - AB - ER - TY - UNPB AU - Szekely, Benjamin AU - Torres, Elias A2 - T1 - Ranking Bookmarks and Bistros: Intelligent Community and Folksonomy Development PY - 2005/05 SP - EP - UR - http://torrez.us/archives/2005/07/13/tagrank.pdf M3 - KW - folksonomy KW - ranking KW - sosbuch L1 - N1 - N1 - AB - ER - TY - JOUR AU - Newman, M.E.J. T1 - Small Worlds: The Structure of Social Networks JO - Complexity PY - 2000/ VL - IS - SP - EP - UR - http://www.santafe.edu/research/publications/workingpapers/99-12-080.pdf M3 - KW - networks KW - small KW - social KW - sosbuch KW - worlds L1 - SN - N1 - N1 - AB - ER - TY - JOUR AU - Kleinberg, Jon M. T1 - Authoritative sources in a hyperlinked environment JO - Journal of the ACM PY - 1999/ VL - 46 IS - 5 SP - 604 EP - 632 UR - http://citeseer.ist.psu.edu/kleinberg99authoritative.html M3 - KW - hits KW - ranking KW - search KW - sosbuch L1 - SN - N1 - HITS algorithm N1 - AB - . The network structure of a hyperlinked environment can be a rich source of information about the content of the environment, provided we have effective means for understanding it. We develop a set of algorithmic tools for extracting information from the link structures of such environments, and report on experiments that demonstrate their effectiveness in a variety of contexts on the World Wide Web. The central issue we address within our framework is the distillation of broad search topics,... ER - TY - CONF AU - Page, L. AU - Brin, S. AU - Motwani, R. AU - Winograd, T. A2 - T1 - The PageRank citation ranking: Bringing order to the Web T2 - Proceedings of the 7th International World Wide Web Conference PB - CY - Brisbane, Australia PY - 1998/ M2 - VL - IS - SP - 161 EP - 172 UR - citeseer.nj.nec.com/page98pagerank.html M3 - KW - pagerank KW - ranking KW - search KW - sosbuch L1 - SN - N1 - N1 - AB - ER -