The patent retrieval task in the fourth NTCIR workshop

  • Authors:

  • Atsushi Fujii;Makoto Iwayama;Noriko Kando

  • Affiliations:

  • University of Tsukuba, Tsukuba, Japan;Hitachi, Ltd., Kokubunji, Japan;National Institute of Informatics, Chiyoda-ku, Japan

  • Venue:
  • Proceedings of the 27th annual international ACM SIGIR conference on Research and development in information retrieval
  • Year:
  • 2004

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Abstract

This paper describes the Patent Retrieval Task in the Fourth NTCIR Workshop, and the test collections produced in this task. We perform the invalidity search task, in which each participant group searches a patent collection for the patents that can invalidate the demand in an existing claim. We also perform the automatic patent map generation task, in which the patents associated with a specific topic are organized in a multi-dimensional matrix.