Paper: Utilizing Co-Occurrence Of Answers In Question Answering

ACL ID P06-1147
Title Utilizing Co-Occurrence Of Answers In Question Answering
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2006
Authors
  • Min Wu (State University of New York at Albany, Albany NY)
  • Tomek Strzalkowski (State University of New York at Albany, Albany NY; Polish Academy of Sciences, Warsaw Poland)

In this paper, we discuss how to utilize the co-occurrence of answers in building an automatic question answering system that answers a series of questions on a specific topic in a batch mode. Experi- ments show that the answers to the many of the questions in the series usually have a high degree of co-occurrence in rele- vant document passages. This feature sometimes can’t be easily utilized in an automatic QA system which processes questions independently. However it can be utilized in a QA system that processes questions in a batch mode. We have used our pervious TREC QA system as base- line and augmented it with new answer clustering and co-occurrence maximiza- tion components to build the batch QA system. The experiment results show that the QA system running under the batch mode g...