Cattuto, Ciro, Benz, Dominik, Hotho, Andreas and Stumme, Gerd. "Semantic Analysis of Tag Similarity Measures in Collaborative Tagging Systems." Paper presented at the meeting of the Proceedings of the 3rd Workshop on Ontology Learning and Population (OLP3), Patras, Greece, 2008.

Jäschke, Robert, Marinho, Leandro, Hotho, Andreas, Schmidt-Thieme, Lars and Stumme, Gerd. "Tag Recommendations in Social Bookmarking Systems." AI Communications 21 , no. 4 (2008): 231-247.

Krause, Beate, Schmitz, Christoph, Hotho, Andreas and Stumme, Gerd. "The Anti-Social Tagger - Detecting Spam in Social Bookmarking Systems." Paper presented at the meeting of the Proc. of the Fourth International Workshop on Adversarial Information Retrieval on the Web, 2008.

Alfi, V., Parisi, G. and Pietronero, L.. "How People React to a Deadline: The Distribution of Registrations of Statphys 23." In Abstract Book of the XXIII IUPAP International Conference on Statistical Physics , edited by Luciano Pietronero, Vittorio Loreto and Stefano Zapperi . Genova, Italy: , 2007.

Hereth, J. and Stumme, G.. "Reverse Pivoting in Conceptual Information Systems.." Paper presented at the meeting of the Conceptual Structures: Broadening the Base. , Heidelberg, 2001.

Becker, K., Stumme, G., Wille, R., Wille, U. and Zickwolff, M.. "Conceptual Information Systems Discussed Through an IT-Security Tool." Paper presented at the meeting of the Knowledge Engineering and Knowledge Management. Methods, Models, and Tools., Heidelberg, 2000.

Göbel, S., Heidemann, M., Jasnoch, U. and Stumme, G.. "Einsatz von GIS und Formaler Begriffsanalyse in
Altlasten-Informationssystemen." Paper presented at the meeting of the Hypermedia im Umweltschutz. 3. Workshop in Ulm 2000, Marburg, 2000.

Stumme, G. and Wolff, K. E.. "Numerical Aspects in the Data Model of Conceptual Information Systems." Paper presented at the meeting of the Advances in Database Technologies. Proc. Intl. Workshop on Data Warehousing and, Heidelberg, 1999.

Stumme, Gerd. "Acquiring Expert Knowledge for the Design of Conceptual Information Systems." Paper presented at the meeting of the Knowledge Acquisition, Modeling, and Management. Proc. 11th European, Heidelberg, 1999.

Stumme, Gerd. "Dual Retrieval in Conceptual Information Systems." Paper presented at the meeting of the Datenbanksysteme in Büro, Technik und Wissenschaft. Proc. BTW'99, Heidelberg, 1999.

Stumme, Gerd and Wolff, Karl Erich. "Computing in Conceptual Data systems with relational structures." Paper presented at the meeting of the Proc. Intl. Symposium on Knowledge Retrieval, Use, and Storage for Efficiency, Vancouver, Canada, 1997.

Stumme, Gerd. Concept Exploration -- Knowledge Acquisition in Knowledge Systems. . Aachen: Shaker, 1997.