1998

Basu, Chumki ; Hirsh, Haym ; Cohen, William W.: Recommendation as Classification: Using Social and Content-Based Information in Recommendation. In: {AAAI}/{IAAI}, 1998. - hallo miranda-note!, S. 714-720
Basu, Chumki ; Hirsh, Haym ; Cohen, William: Recommendation as classification: using social and content-based information in recommendation. In: AAAI '98/IAAI '98: Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence. Menlo Park, CA, USA : American Association for Artificial Intelligence, 1998. - ISBN 0-262-51098-7, S. 714--720
Basu, Chumki ; Hirsh, Haym ; Cohen, William: Recommendation as classification: using social and content-based information in recommendation. In: AAAI '98/IAAI '98: Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence. Menlo Park, CA, USA : American Association for Artificial Intelligence, 1998. - ISBN 0-262-51098-7, S. 714--720

1994

Cohen, William W. ; Hirsh, Haym: Learning the Classic Description Logic: Theoretical and Experimental Results.. In: KR, 1994. - ISBN 1-55860-554-1, S. 121-133
Cohen, William W. ; Hirsh, Haym: The Learnability of Description Logics with Equality Constraints.. In: Machine Learning, 17 (1994), Nr. 2-3, S. 169-199