Paper: Answering Questions Of Information Access Dialogue (IAD) Task Using Ellipsis Handling Of Follow-Up Questions

ACL ID W06-3006
Title Answering Questions Of Information Access Dialogue (IAD) Task Using Ellipsis Handling Of Follow-Up Questions
Venue Interactive Question Answering Workshop
Session
Year 2006
Authors

In this paper, we propose ellipsis han- dling method for follow-up questions in Information Access Dialogue (IAD) task of NTCIR QAC3. In this method, our sys- tem classi es ellipsis patterns of question sentences into three types and recognizes elliptical elements using ellipsis handling algorithm for each type. In the evalua- tion using Formal Run and Reference Run data, there were several cases which our algorithm could not handle ellipsis cor- rectly. According to the analysis of evalu- ation results, the main reason of low per- formance was lack of word information for recognition of referential elements. If our system can recognize word meanings correctly, some errors will not occur and ellipsis handling works well.