Paper: Answering Definition Questions With Multiple Knowledge Sources

ACL ID N04-1007
Title Answering Definition Questions With Multiple Knowledge Sources
Venue Human Language Technologies
Session Main Conference
Year 2004
Authors

Definition questions represent a largely unex- plored area of question answering—they are different from factoid questions in that the goal is to return as many relevant “nuggets” of information about a concept as possible. We describe a multi-strategy approach to an- swering such questions using a database con- structed offline with surface patterns, a Web- based dictionary, and an off-the-shelf docu- ment retriever. Results are presented from component-level evaluation and from an end- to-end evaluation of our implemented system at the TREC 2003 Question Answering Track.