EUROSPEECH '97
5th European Conference on Speech Communication and Technology

Rhodes, Greece
September 22-25, 1997


Analysis of Interactive Strategy to Recover from Misrecognition of Utterances Including Multiple Information Items

Yasuhisa Niimi, Takuya Nishimoto, Yutaka Kobayashi

Department of Electronics and Information Science, Kyoto Institute of Technology Matsugasaki, Kyoto, Japan

This paper proposes and analyzes mathematically an interactive strategy to recover from misrecognition of utterances including multiple information items through a short conversation with a speaker. First the speech recognizer in a dialogue system recognizes an utterance and evaluates the reliability of each item contained in it. The dialogue system accepts only those items of which the reliability is high, while it rejects the items which are unreliably recognized, or confirms the content of them. The paper, given the performance of the recognizer, derives two quantities P ac and N, which can describe the performance of the dialogue system using this interactive strategy: P ac is the probability that all information items included in user's utterance are conveyed to the system correctly, and N is the average number of turns taken between the user and the system until all the items are accepted.

Full Paper

Bibliographic reference.  Niimi, Yasuhisa / Nishimoto, Takuya / Kobayashi, Yutaka (1997): "Analysis of interactive strategy to recover from misrecognition of utterances including multiple information items", In EUROSPEECH-1997, 2251-2254.