Atzmueller, Martin ; Lemmerich, Florian ; Krause, Beate ; Hotho, Andreas ; Knobbe, Johannes Fürnkranz Arno (Bearb.): {Towards Understanding Spammers - Discovering Local Patterns for Concept Characterization and Description}. In: 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

Atzmueller, Martin ; Lemmerich, Florian ; Krause, Beate ; Hotho, Andreas: Who are the Spammers? Understandable Local Patterns for Concept Description. In: 7th Conference on Computer Methods and Systems. Krakow, Poland, 2009. - ISBN 83-916420-5-4

Benz, Dominik ; Krause, Beate ; Kumar, G. Praveen ; Hotho, Andreas ; Stumme, Gerd: Characterizing Semantic Relatedness of Search Query Terms. In: Proceedings of the 1st Workshop on Explorative Analytics of Information Networks (EIN2009). Bled, Slovenia, 2009

Benz, Dominik ; Eisterlehner, Folke ; Hotho, Andreas ; Jäschke, Robert ; Krause, Beate ; Stumme, Gerd ; Cattuto, Ciro (Bearb.) ; Ruffo, Giancarlo (Bearb.) ; Menczer, Filippo (Bearb.): Managing publications and bookmarks with BibSonomy. In: HT '09: Proceedings of the 20th ACM Conference on Hypertext and Hypermedia. New York, NY, USA : ACM, 2009. - ISBN 978-1-60558-486-7, S. 323--324

ECML PKDD Discovery Challenge 2009 (DC09) s. 497, 2009

Hotho, Andreas ; Jäschke, Robert ; Benz, Dominik ; Grahl, Miranda ; Krause, Beate ; Schmitz, Christoph ; Stumme, Gerd ; Blumauer, Andreas (Bearb.) ; Pellegrini, Tassilo (Bearb.): Social Bookmarking am Beispiel BibSonomy In: Social Semantic Web. Berlin, Heidelberg : Springer, 2009 X.media.press). - ISBN-978-3-540-72215-1, S. 363--391

Jäschke, Robert ; Eisterlehner, Folke ; Hotho, Andreas ; Stumme, Gerd ; Benz, Dominik (Bearb.) ; Janssen, Frederik (Bearb.): Testing and Evaluating Tag Recommenders in a Live System. In: Workshop on Knowledge Discovery, Data Mining, and Machine Learning, 2009, S. 44 --51

Markines, Benjamin ; Cattuto, Ciro ; Menczer, Filippo ; Benz, Dominik ; Hotho, Andreas ; Stumme, Gerd: Evaluating Similarity Measures for Emergent Semantics of Social Tagging. In: 18th International World Wide Web Conference, 2009, S. 641--641

Voss, Jakob ; Hotho, Andreas ; Jäschke, Robert ; Kuhlen, Rainer (Bearb.): Mapping Bibliographic Records with Bibliographic Hash Keys. In: Information: Droge, Ware oder Commons? : Verlag Werner Hülsbusch, 2009 (Proceedings of the ISI)