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Acoustic Feature Transformation Based on Discriminant Analysis Preserving Local Structure for Speech Recognition
http://hdl.handle.net/2237/14969
http://hdl.handle.net/2237/149691d5a2cef-a162-40e6-96e4-27911caf2dc6
名前 / ファイル | ライセンス | アクション |
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396.pdf (218.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-06-28 | |||||
タイトル | ||||||
タイトル | Acoustic Feature Transformation Based on Discriminant Analysis Preserving Local Structure for Speech Recognition | |||||
言語 | en | |||||
著者 |
SAKAI, Makoto
× SAKAI, Makoto× KITAOKA, Norihide× TAKEDA, Kazuya |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Copyright (C) 2010 IEICE | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | speech recognition | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | feature extraction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | multidimensional signal processing | |||||
抄録 | ||||||
内容記述 | To improve speech recognition performance, feature transformation based on discriminant analysis has been widely used to reduce the redundant dimensions of acoustic features. Linear discriminant analysis (LDA) and heteroscedastic discriminant analysis (HDA) are often used for this purpose, and a generalization method for LDA and HDA, called power LDA (PLDA), has been proposed. However, these methods may result in an unexpected dimensionality reduction for multimodal data. It is important to preserve the local structure of the data when reducing the dimensionality of multimodal data. In this paper we introduce two methods, locality-preserving HDA and locality-preserving PLDA, to reduce dimensionality of multimodal data appropriately. We also propose an approximate calculation scheme to calculate sub-optimal projections rapidly. Experimental results show that the locality-preserving methods yield better performance than the traditional ones in speech recognition. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Institute of Electronics, Information and Communication Engineers | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連情報 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://www.ieice.org/jpn/trans_online/index.html | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0916-8532 | |||||
書誌情報 |
en : IEICE transactions on information and systems 巻 E93-D, 号 5, p. 1244-1252, 発行日 2010-05-01 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://www.ieice.org/jpn/trans_online/index.html | |||||
識別子タイプ | URI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/14969 | |||||
識別子タイプ | HDL |