SIGIR03 - Question answering Quantitative evaluation of passage retrieval algorithms for question answering Stefanie Tellex Boris Katz Jimmy J. Lin Aaron Fernandes Gregory Marton Structured use of external knowledge for event-based open domain question answering Hui Yang Tat-Seng Chua Shuguang Wang Chun-Keat Koh Question classification using support vector machines Dell Zhang Wee Sun Lee Return to SIGIR03 session listing ©2004 Association for Computing Machinery