Enhancing patent retrieval by citation analysis

  • Authors:
  • Atsushi Fujii

  • Affiliations:
  • University of Tsukuba, Tsukuba, Japan

  • Venue:
  • SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
  • Year:
  • 2007

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Abstract

This paper proposes a method to combine text-based and citation-based retrieval methods in the invalidity patent search. Using the NTCIR-6 test collection including eight years of USPTO patents, we show the effectiveness of our method experimentally.