Paper: Splitting Complex Temporal Questions For Question Answering Systems

ACL ID P04-1072
Title Splitting Complex Temporal Questions For Question Answering Systems
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2004
Authors

This paper presents a multi-layered Question An- swering (Q.A). architecture suitable for enhanc- ing current Q.A. capabilities with the possibility of processing complex questions. That is, questions whose answer needs to be gathered from pieces of factual information scattered in different docu- ments. Specifically, we have designed a layer ori- ented to process the different types of temporal questions. Complex temporal questions are first de- composed into simpler ones, according to the tem- poral relationships expressed in the original ques- tion. In the same way, the answers of each simple ques- tion are re-composed, fulfilling the temporal restric- tions of the original complex question. Using this architecture, a Temporal Q.A. system has been developed. In this paper, we focus on e...