| Presentation | 1998/12/11 Feature-Extraction Based on Multiple Acoustic-Feature Planes(MAFP)and LDA for Speech Recognition Tsuneo Nitta, Takeshi Inoue, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes an attempt to extract multiple topological structures, hidden in time-spectrum(TS)patterns, by using multiple mapping operators, and to incorporate the operators into the feature extractor of a speech recognition system. In the previous work, the author proposed a novel feature-extraction method based on MAFP/KLT(MAFP : multiple acoustic-feature planes), in which 3×3 derivative filters were used for mapping operators, and showed that the method achieved significant improvement in preliminary experiments. In this paper, firstly, the mapping operators are directly extracted in the form of a 3×3 orthogonal basis from a speech database. Next, the operators are evaluated, together with 3×3 simplified operators modeled on the orthogonal basis. Finally, after comparing the experimental results, the author proposes an effective feature-extraction method based on MAFP/LDA, in which a Sobel filter is used for mapping operators. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech Recognition / Feature Extraction / Mapping pperator / Orthogonal basis / Space derivative operator / KL-transform / LDA |
| Paper # | NLC98-52,SP98-116 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 1998/12/11(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) | Feature-Extraction Based on Multiple Acoustic-Feature Planes(MAFP)and LDA for Speech Recognition |
| Sub Title (in English) | |
| Keyword(1) | Speech Recognition |
| Keyword(2) | Feature Extraction |
| Keyword(3) | Mapping pperator |
| Keyword(4) | Orthogonal basis |
| Keyword(5) | Space derivative operator |
| Keyword(6) | KL-transform |
| Keyword(7) | LDA |
| 1st Author's Name | Tsuneo Nitta |
| 1st Author's Affiliation | Multimedia Eng.Lab., Toshiba Corp.() |
| 2nd Author's Name | Takeshi Inoue |
| 2nd Author's Affiliation | Toshiba Computer Eng.Corp. |
| Date | 1998/12/11 |
| Paper # | NLC98-52,SP98-116 |
| Volume (vol) | vol.98 |
| Number (no) | 461 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |