Overview of Patent Retrieval Task at NTCIR-4.

@inproceedings{fujii-2004-overview, author = {Atsushi Fujii and Makoto Iwayama and Noriko Kando}, editor = {Noriko Kando and Haruko Ishikawa}, title = {{Overview of Patent Retrieval Task at NTCIR-4}}, booktitle = {{Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004}}, publisher = {National Institute of Informatics (NII)}, year = {2004}, url = {http://research.nii.ac.jp/ntcir/workshop/OnlineProceedings4/PATENT/NTCIR4-OV-PATENT-FujiiA.pdf} }