| Presentation | 2002/1/18 Effectiveness of An Expanded Dictionary in Information Retrieval System by Keyword Spotting Tetsuya Yamamoto, Jun Ogata, Yasuo Ariki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An information retrieval system by voice input for broadcast news is investigated. Our purpose is to design the system in which robust speech recognition is possible to inquiries from a user with comparatively high flexibility. The transcription result of a news speech is used to contruct a user's keyword dictionary for inquiry. In order to solve a problem of time difference between training data and evaluation data, the N-gram language model was created from the news story in the newest Web data, and it was adapted to evaluation data. In addition, widely used vector space model and LSI method were investigated to deal with the words out of vocabulary. Through the experiments, some effect was verified. The simulation experiment of keyword potting was conducted and the system validity was shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | web news / N-gram language model / LSI method / expanded dictionary / keyword spotting |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2002/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | Effectiveness of An Expanded Dictionary in Information Retrieval System by Keyword Spotting |
| Sub Title (in English) | |
| Keyword(1) | web news |
| Keyword(2) | N-gram language model |
| Keyword(3) | LSI method |
| Keyword(4) | expanded dictionary |
| Keyword(5) | keyword spotting |
| 1st Author's Name | Tetsuya Yamamoto |
| 1st Author's Affiliation | Faculty of Science and Technology, Ryukoku University() |
| 2nd Author's Name | Jun Ogata |
| 2nd Author's Affiliation | Faculty of Science and Technology, Ryukoku University |
| 3rd Author's Name | Yasuo Ariki |
| 3rd Author's Affiliation | Faculty of Science and Technology, Ryukoku University |
| Date | 2002/1/18 |
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| Volume (vol) | vol.101 |
| Number (no) | 604 |
| Page | pp.pp.- |
| #Pages | 6 |
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