Paper: Efficient Confirmation Strategy For Large-Scale Text Retrieval Systems With Spoken Dialogue Interface

ACL ID C04-1158
Title Efficient Confirmation Strategy For Large-Scale Text Retrieval Systems With Spoken Dialogue Interface
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2004
Authors

Adequate confirmation for keywords is in- dispensable in spoken dialogue systems to eliminate misunderstandings caused by speech recognition errors. Spoken lan- guage also inherently includes out-of- domain phrases and redundant expressions such as disfluency, which do not contribute to task achievement. It is necessary to appropriately make confirmation for im- portant portions. However, a set of key- words necessary to achieve the tasks can- not be predefined in retrieval for a large- scale knowledge base unlike conventional database query tasks. In this paper, we describe two statistical measures for iden- tifying portions to be confirmed. A rele- vance score represents the matching degree with the target knowledge base. A sig- nificance score detects portions that conse- quently affec...