| Presentation | 2013-01-30 Detection Method of Utterances out-of-Scope for Dialogue-based CALL Systems trained with Learner Corpus YU NAGAI, XIAOYUN WANG, MASAFUMI NISHIDA, SEIICHI YAMAMOTO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The progress of Automatic Speech Recognition (ASR) has pushed forward research on Computer Aided Language Learning (CALL) systems which recognize speech constructed by students on their own. Reliable recognition is still difficult for spontaneous speech by the second language speakers. We are developing a dialogue-based CALL system which shows answers in Japanese to achieve high recognition accuracy. In this paper we propose a novel classification method which classifies the speech recognition result from the recognizer using the FSA into accepted or rejected. The classification method adopts differences among acoustic likelihoods from the multiple recognizers as well as edit distances among the multiple recognizers' outputs as features for the classifier. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Out-of-scope utterances / Automatic speech recognition / Dialogue-based CALL systems / Learner corpus |
| Paper # | SP2012-100 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2013/1/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Detection Method of Utterances out-of-Scope for Dialogue-based CALL Systems trained with Learner Corpus |
| Sub Title (in English) | |
| Keyword(1) | Out-of-scope utterances |
| Keyword(2) | Automatic speech recognition |
| Keyword(3) | Dialogue-based CALL systems |
| Keyword(4) | Learner corpus |
| 1st Author's Name | YU NAGAI |
| 1st Author's Affiliation | Graduate School of Engineering, Doshisha University() |
| 2nd Author's Name | XIAOYUN WANG |
| 2nd Author's Affiliation | Graduate School of Engineering, Doshisha University |
| 3rd Author's Name | MASAFUMI NISHIDA |
| 3rd Author's Affiliation | Graduate School of Engineering, Doshisha University |
| 4th Author's Name | SEIICHI YAMAMOTO |
| 4th Author's Affiliation | Graduate School of Engineering, Doshisha University |
| Date | 2013-01-30 |
| Paper # | SP2012-100 |
| Volume (vol) | vol.112 |
| Number (no) | 422 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |