| Presentation | 2004/12/15 Out-of-Domain Detection Incorporating Dialogue Context and Topic Clustering Ian R. LANE, Tatsuya KAWAHARA, Satoshi NAKAMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The detection and handling of OOD (out-of-domain) user utterances are significant problems for spoken language systems. We have proposed a novel OOD detection framework, which makes use of classification confidence scores of multiple topics. In this paper, we extend this framework in order to handle natural language dialogue. Specifically, two issues are addressed. First, to effectively incorporate dialogue context, we investigate methods to combine multiple utterances at various stages of the OOD detection process: at the sentence, topic classification, and in-domain verification level. Second, to improve robustness on spontaneous speech, we introduce a topic clustering scheme which provides.reliable topic classification confidence even for indistinct utterances. The system was evaluated on natural dialogue via the ATR speech-to-speech translation system, and a significant improvement in OOD detection accuracy was achieved by incorporating the two proposed techniques. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech recognition / out-of-domain detection / confidence measures / dialogue context / topic clustering |
| Paper # | NLC2004-90,SP2004-130 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2004/12/15(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 | Natural Language Understanding and Models of Communication (NLC) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Out-of-Domain Detection Incorporating Dialogue Context and Topic Clustering |
| Sub Title (in English) | |
| Keyword(1) | Speech recognition |
| Keyword(2) | out-of-domain detection |
| Keyword(3) | confidence measures |
| Keyword(4) | dialogue context |
| Keyword(5) | topic clustering |
| 1st Author's Name | Ian R. LANE |
| 1st Author's Affiliation | Graduate School of Informatics, Kyoto University:ATR Spoken Language Translation Laboratories() |
| 2nd Author's Name | Tatsuya KAWAHARA |
| 2nd Author's Affiliation | Graduate School of Informatics, Kyoto University:ATR Spoken Language Translation Laboratories |
| 3rd Author's Name | Satoshi NAKAMURA |
| 3rd Author's Affiliation | ATR Spoken Language Translation Laboratories |
| Date | 2004/12/15 |
| Paper # | NLC2004-90,SP2004-130 |
| Volume (vol) | vol.104 |
| Number (no) | 540 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |