Paper: A Two-Stage Approach To Retrieving Answers For How-To Questions

ACL ID E06-3006
Title A Two-Stage Approach To Retrieving Answers For How-To Questions
Venue Annual Meeting of The European Chapter of The Association of Computational Linguistics
Session Main Conference
Year 2006
Authors
  • Ling Yin (University of Brighton, Brighton UK)

This paper addresses the problem of automatically retrieving answers for how-to questions, focusing on those that inquire about the procedure for achieving a specific goal. For such questions, typical information retrieval methods, based on key word matching, are better suited to detecting the content of the goal (e.g. , ‘installing a Windows XP server’) than the general nature of the desired information (i.e. , procedural, a series of steps for achieving this goal). We suggest dividing the process of retrieving answers for such questions into two stages, with each stage focusing on modeling one aspect of a how-to question. We compare the two-stage approach with two alternative approaches: a baseline approach that only uses the content of the goal to retrieve relevant documents and ano...