An Information Retrieval Model Based On Word Concept Chen Wu author Quan Zhang author Xiangfeng Wei author 2006-11 text Proceedings of the 20th Pacific Asia Conference on Language, Information and Computation Tsinghua University Press Huazhong Normal University, Wuhan, China conference publication wu-etal-2006-information http://hdl.handle.net/2065/29040 https://aclanthology.org/Y06-1008/ 2006-11 56 63