| Presentation | 2008-12-09 Speech Feature Extraction Using Constrained Nonnegative Matrix Factorization Hyunsin PARK, Tetsuya TAKIGUCHI, Yasuo ARIKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a speech feature extraction approach using nonnegative matrix factorization (NMF), and a new initialization approach for NMF. NMF is excellent at extracting local feature using nonnegative constraint. This method has been applied to data of text, image, or sound. In this paper, we apply this method to speech feature extraction. Recently, initialization methods based on SVD or clustering methods for NMF have been proposed. In this paper, a new initialization method using correlation information for NMF is described. A sparseness of base vector is additionally constrained to NMF. In comparison experiment among initialization methods, our proposed method shows effectiveness at estimate error and word speech recognition. The new feature extraction method also shows effectiveness at word speech recognition compared to MFCC and features by principal component analysis or independent component analysis. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Nonnegative matrix factorization / Correlation propagation initialization / Speech feature extraction / Isolated word speech recognition |
| Paper # | NLC2008-31,SP2008-86 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2008/12/2(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Speech Feature Extraction Using Constrained Nonnegative Matrix Factorization |
| Sub Title (in English) | |
| Keyword(1) | Nonnegative matrix factorization |
| Keyword(2) | Correlation propagation initialization |
| Keyword(3) | Speech feature extraction |
| Keyword(4) | Isolated word speech recognition |
| 1st Author's Name | Hyunsin PARK |
| 1st Author's Affiliation | Graduate School of Engineering, Kobe University() |
| 2nd Author's Name | Tetsuya TAKIGUCHI |
| 2nd Author's Affiliation | Graduate School of Engineering, Kobe University |
| 3rd Author's Name | Yasuo ARIKI |
| 3rd Author's Affiliation | Graduate School of Engineering, Kobe University |
| Date | 2008-12-09 |
| Paper # | NLC2008-31,SP2008-86 |
| Volume (vol) | vol.108 |
| Number (no) | 337 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |