Retrieving answers from frequently asked questions pages on the web

  • Jijkoun V
  • de Rijke M
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Abstract

vector space model计算相似度来做retrieval,测试从不同question description作为similarity计算对象来retrieval,这里用的是FAQ的数据,每条数据包括question text,answer text, FAQ page的title及FAQ page的full text,在计算similarity中,query question与corpus中的QA pair的question text,answer text,FAQ page title计算的similarity加权和最有用,并且是不做stemming、不去stop word,做了stemming的similarity retrieve的结果反而不好;而stop word通常包括wh-phrase,这在question中是重要的一部分,因此也不能去掉。

Author-supplied keywords

  • faq retrieval
  • question answering
  • questions beyond fac-

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Authors

  • Valentin Jijkoun

  • Maarten de Rijke

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