S. Bloehdorn, и A. Hotho. Proceedings of the Workshop on Text-based Information Retrieval (TIR-04) at the 27th German Conference on Artificial Intelligence, (сентября 2004)
S. Bloehdorn, и A. Hotho. Proceedings of the Fourth IEEE International Conference on Data Mining, стр. 331-334. IEEE Computer Society Press, (ноября 2004)
S. Bloehdorn, и A. Hotho. Proceedings of the MSW 2004 workshop at the 10th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, стр. 70-87. (августа 2004)
P. Cimiano, A. Hotho, и S. Staab. Proceedings of the Conference on Languages Resources and Evaluation (LREC), Lisbon, Portugal, ELRA - European Language Ressources Association, (мая 2004)
P. Cimiano, A. Hotho, и S. Staab. Proceedings of the European Conference on Artificial Intelligence (ECAI'04), стр. 435-439. Valencia, Spain, IOS Press, (2004)
P. Cimiano, A. Hotho, G. Stumme, и J. Tane. Proceedings of the The Second International Conference on Formal Concept Analysis (ICFCA 04), том 2961 из LNCS, Springer, (2004)
P. Haase, M. Ehrig, A. Hotho, и B. Schnizler. Proceedings of the AAAI Workshop on Semantic Web Personalization, 2004, стр. 1-12. AAAI Press, (июля 2004)
A. Hotho, Y. Sure, и L. Getoor (Ред.) (августа 2004)located at the 10th International ACM SIGKDD Conference on Knowledge Discovery and Data Mining KDD 2004, 22nd August 2004, Seattle, WA, USA.