Research and Development in Information Retrieval (SIGIR 2002) Proceedings of the Twenty - Fifth Annual International ACM SIGIR Conference, August 11-15, 2002, Tampere, Finland - Beaulieu, Micheline; Baeza-Yates, R. (Ricardo), 1961-; MYAENG, SUNG HYON; JARVELIN, KALEVRO (Association of Computing Machinery, 2002)