Media type: Electronic Conference Proceeding Title: Effects of prior knowledge on the effectiveness of a hybrid user model for information retrieval Contributor: Nguyen, Hien; Santos, Jr., Eugene Published: SPIE, 2007 Published in: SPIE Proceedings (2007) Extent: Language: Not determined DOI: 10.1117/12.722549 ISSN: 0277-786X Origination: Footnote: