Query-based opinion summarization for legal blog entries

  • Authors:
  • Jack G. Conrad;Jochen L. Leidner;Frank Schilder;Ravi Kondadadi

  • Affiliations:
  • Thomson Reuters Corporation, St. Paul, MN;Thomson Reuters Corporation, St. Paul, MN;Thomson Reuters Corporation, St. Paul, MN;Thomson Reuters Corporation, St. Paul, MN

  • Venue:
  • Proceedings of the 12th International Conference on Artificial Intelligence and Law
  • Year:
  • 2009

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Abstract

We present the first report of automatic sentiment summarization in the legal domain. This work is based on processing a set of legal questions with a system consisting of a semi-automatic Web blog search module and FastSum, a fully automatic extractive multi-document sentiment summarization system. We provide quantitative evaluation results of the summaries using legal expert reviewers. We report baseline evaluation results for query-based sentiment summarization for legal blogs: on a five-point scale, average responsiveness and linguistic quality are slightly higher than 2 (with human inter-rater agreement at k = 0.75). To the best of our knowledge, this is the first evaluation of sentiment summarization in the legal blogosphere.