Pseudo Relevance Feedback Method based on Taylor Expansion of Retrieval Function in NTCIR-3 Patent Retrieval Task Kazuaki Kishida author 2003-07 text Proceedings of the ACL-2003 Workshop on Patent Corpus Processing Association for Computational Linguistics , conference publication kishida-2003-pseudo 10.3115/1119303.1119307 https://aclanthology.org/W03-2004/ 2003-07 33 40