Title
Improving the robustness to recognition errors in speech input question answering
Abstract
In our previous work, we developed a prototype of a speech-input help system for home appliances such as digital cameras and microwave ovens. Given a factoid question, the system performs textual question answering using the manuals as the knowledge source. Whereas, given a HOW question, it retrieves and plays a demonstration video. However, our first prototype suffered from speech recognition errors, especially when the Japanese interrogative phrases in factoid questions were misrecognized. We therefore propose a method for solving this problem, which complements a speech query transcript with an interrogative phrase selected from a pre-determined list. The selection process first narrows down candidate phrases based on co-occurrences within the manual text, and then computes the similarity between each candidate and the query transcript in terms of pronunciation. Our method improves the Mean Reciprocal Rank of top three answers from 0.429 to 0.597 for factoid questions.
Year
DOI
Venue
2006
10.1007/11880592_23
AIRS
Keywords
Field
DocType
interrogative phrase,speech input question answering,speech-input help system,factoid question,speech query transcript,textual question answering,mean reciprocal rank,japanese interrogative phrase,speech recognition error,candidate phrase,query transcript,question answering,system performance,speech recognition
Pronunciation,Speech processing,User assistance,Question answering,Computer science,Phrase,Speech recognition,Mean reciprocal rank,Factoid,Interrogative
Conference
Volume
ISSN
ISBN
4182
0302-9743
3-540-45780-1
Citations 
PageRank 
References 
0
0.34
9
Authors
6
Name
Order
Citations
PageRank
Hideki Tsutsui171.52
Toshihiko Manabe2908.90
Mika Fukui3103.36
Tetsuya Sakai41460139.97
Makoto Koyama541.17
Koji Urata600.34