bookmarks
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- tripartite
- Social bookmarking systems and their emergent information structures, known as folksonomies, are increasingly important data sources for Semantic Web appli...Social bookmarking systems and their emergent information structures, known as folksonomies, are increasingly important data sources for Semantic Web applications. A key question for harvesting semantics from these systems is how to extend and adapt traditional notions of similarity to folksonomies, and which measures are best suited for applications such as navigation support, semantic search, and ontology learning. Here we build an evaluation framework to compare various general folksonomy-based similarity measures derived from established information-theoretic, statistical, and practical measures. Our framework deals generally and symmetrically with users, tags, and resources. For evaluation purposes we focus on similarity among tags and resources, considering different ways to aggregate annotations across users. After comparing how tag similarity measures predict user-created tag relations, we provide an external grounding by user-validated semantic proxies based on WordNet and the Open Directory. We also investigate the issue of scalability. We find that mutual information with distributional micro-aggregation across users yields the highest accuracy, but is not scalable; per-user projection with collaborative aggregation provides the best scalable approach via incremental computations. The results are consistent across resource and tag similarity.
- mendation service which can be called via HTTP by BibSonomy's recommender when a user posts a bookmark or publication. All participating recommenders are c...mendation service which can be called via HTTP by BibSonomy's recommender when a user posts a bookmark or publication. All participating recommenders are called on each posting process, one of them is choosen to actually deliver the results to the user. We can then measure
- SPECIAL SESSION ON MINING OF SOCIAL MEDIA; Paper Submission: June 13
publications
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- Dominik Benz and Beate Krause and G. Praveen Kumar and Andreas Hotho and Gerd Stumme Proceedings of the 1st Workshop on Explorative Analytics of Information Networks EIN2009, Bled, Slovenia, September 2009.
- Bettina Berendt and Beate Krause and Sebastian Kolbe-Nusser Information Processing \& Management46(1):1--10January 2010.
- Martin Atzmueller and Florian Lemmerich and Beate Krause and Andreas Hotho Proc. LeGo-09: From Local Patterns to Global Models, Workshop at the 2009 European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Bled, Slovenia, September 2009. accepted .
- Robert Jäschke and Folke Eisterlehner and Andreas Hotho and Gerd Stumme Workshop on Knowledge Discovery, Data Mining, and Machine Learning, page 44--51. sep 2009.
- Robert Jäschke and Folke Eisterlehner and Andreas Hotho and Gerd Stumme RecSys '09: Proceedings of the third ACM Conference on Recommender Systems, page 369--372. New York, NY, USA, ACM, (2009)
- Gerd Stumme and Marc Ehrig and Siegfried Handschuh and Andreas Hotho and Alexander Maedche and Boris Motik and Daniel Oberle and Christoph Schmitz and Steffen Staab and Ljiljana Stojanovic and Nenad Stojanovic and Rudi Studer and York Sure and Raphael Volz and Valentin Zacharias University of Karlsruhe, Institute AIFB, (2003)
- Dominik Benz and Beate Krause and G. Praveen Kumar and Andreas Hotho and Gerd Stumme Proceedings of the 1st Workshop on Explorative Analytics of Information Networks EIN2009, Bled, Slovenia, September 2009.
- Robert Jäschke and Folke Eisterlehner and Andreas Hotho and Gerd Stumme Workshop on Knowledge Discovery, Data Mining, and Machine Learning, page 44 --51. sep 2009.
- Martin Atzmueller and Florian Lemmerich and Beate Krause and Andreas Hotho Proc. LeGo-09: From Local Patterns to Global Models, Workshop at the 2009 European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, (2009) accepted .
- Folke Eisterlehner and Andreas Hotho and Robert Jäschke (eds.). volume 497 of CEUR-WS.org, sep 2009.
- Dominik Benz and Beate Krause and G. Praveen Kumar and Andreas Hotho and Gerd Stumme Proceedings of the 1st Workshop on Explorative Analytics of Information Networks EIN2009, Bled, Slovenia, September 2009.
- Dominik Benz and Beate Krause and G. Praveen Kumar and Andreas Hotho and Gerd Stumme Proceedings of the 1st Workshop on Explorative Analytics of Information Networks EIN2009, Bled, Slovenia, September 2009.
- Robert Jäschke and Folke Eisterlehner and Andreas Hotho and Gerd Stumme Workshop on Knowledge Discovery, Data Mining, and Machine Learning, page 44 --51. sep 2009.
- Folke Eisterlehner and Andreas Hotho and Robert Jäschke (eds.). volume 497 of CEUR-WS.org, sep 2009.
- G. Stumme Springer, Heidelberg, (2000)
- G. Stumme Database and Expert Systems Applications. Proc. DEXA 2002, volume 2453 of LNCS, page 534-546. Heidelberg, Springer, (2002)
- Mariano Fernandez-Lopez and Asun Gomez-Perez and Jerome Euzenat and Aldo Gangemi and Y. Kalfoglou and D. Pisanelli and M. Schorlemmer and G. Steve and Ljilajana Stojanovic and Gerd Stumme and York Sure OntoWeb deliverable, Universidad Politecnia de Madrid, (2002)
- Robert Jäschke Technische Universität Dresden, Diplomarbeit, (2005)
- Michael May and Bettina Berendt and Antoine Cornuéjols and Jõao Gama and Fosca Giannotti and Andreas Hotho and Donato Malerba and Ernestina Menesalvas and Katharina Morik and Rasmus Pedersen and Lorenza Saitta and Yücel Saygin and Assaf Schuster and Koen Vanhoof Next Generation of Data Mining Chapman & Hall/Crc Data Mining and Knowledge Discovery Series, Chapman & Hall/CRC, 1 edition, (2008)
- Robert Jäschke and Leandro Marinho and Andreas Hotho and Lars Schmidt-Thieme and Gerd Stumme AI Communications21(4):231-247(2008)
- Robert Jäschke and Leandro Marinho and Andreas Hotho and Lars Schmidt-Thieme and Gerd Stumme AI Communications21(4):231-247(2008)
- Robert Jäschke and Leandro Marinho and Andreas Hotho and Lars Schmidt-Thieme and Gerd Stumme AI Communications(2008) to appear .
- Andreas Hotho page 26-38. Oldenbourg Verlag, München, (2008)
- Liming Chen and Philippe Cudré-Mauroux and Peter Haase and Andreas Hotho and Ernie Ong (eds.). volume 292 of CEUR Workshop Proceedings, CEUR-WS.org, (2007)


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