Information distance from a question to an answer

  • Authors:
  • Xian Zhang;Yu Hao;Xiaoyan Zhu;Ming Li;David R. Cheriton

  • Affiliations:
  • Tsinghua University;Tsinghua University;Tsinghua University;University of Waterloo;University of Waterloo

  • Venue:
  • Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining
  • Year:
  • 2007

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Abstract

We provide three key missing pieces of a general theory of information distance [3, 23, 24]. We take bold steps in formulating a revised theory to avoid some pitfalls in practical applications. The new theory is then used to construct a question answering system. Extensive experiments are conducted to justify the new theory.