Overview of Patent Retrieval Task at NTCIR-3 Makoto Iwayama author Atsushi Fujii author Noriko Kando author Akihiko Takano author 2003-07 text Proceedings of the ACL-2003 Workshop on Patent Corpus Processing Association for Computational Linguistics , conference publication iwayama-etal-2003-overview 10.3115/1119303.1119306 https://aclanthology.org/W03-2003/ 2003-07 24 32