| Presentation | 2005/12/14 Sequential Non-Stationary Noise Tarcking Based on Switching Dynamical System and Particle Filtering Masakiyo FUJIMOTO, Satoshi NAKAMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper addresses a speech recognition problem in non-stationary noise environments : the estimation of noise sequences. To solve this problem, we present a particle filter-based sequential noise estimation method for the front-end processing of speech recognition. In the proposed method, the particle filter is defined by a dynamical system based on Polyak averaging and feedback. We also introduce a switching dynamical system into the particle filter to cope with non-stationarity of the environment noise. In the evaluation results, we observed that the proposed method improves speech recognition accuracy in the results of non-stationary noise environments by a noise compensation method with stationary noise assumptions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | noisy speech recognition / non-stationary noise / particle filter / switching dynamical system |
| Paper # | NLC2005-58,SP2005-91 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2005/12/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Natural Language Understanding and Models of Communication (NLC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Sequential Non-Stationary Noise Tarcking Based on Switching Dynamical System and Particle Filtering |
| Sub Title (in English) | |
| Keyword(1) | noisy speech recognition |
| Keyword(2) | non-stationary noise |
| Keyword(3) | particle filter |
| Keyword(4) | switching dynamical system |
| 1st Author's Name | Masakiyo FUJIMOTO |
| 1st Author's Affiliation | ATR Spoken Language Communication Research Laboratories() |
| 2nd Author's Name | Satoshi NAKAMURA |
| 2nd Author's Affiliation | ATR Spoken Language Communication Research Laboratories |
| Date | 2005/12/14 |
| Paper # | NLC2005-58,SP2005-91 |
| Volume (vol) | vol.105 |
| Number (no) | 493 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |