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- W1788654315 abstract "In this paper, a feature extraction method with an optimal root cepstral analysis is presented. The optimal root cepstral analysis is based on the idea of root homomorphic deconvolution but we propose using minimum classification error (MCE) to determine the optimal root in order to improve the recognition performance. As an extension, multiple root cepstral analysis is introduced, which allows each state of the HMM model to have a set of feature vectors derived from different roots. A simple recombination is deployed in the HMM model to combine the multiple roots so as to further enhance the discrimination for the recognition. Experiments for isolated-word speech recognition are carried out to illustrate its improved performance over the conventional feature extraction methods." @default.
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- W1788654315 date "2003-06-25" @default.
- W1788654315 modified "2023-09-22" @default.
- W1788654315 title "Optimal root cepstral analysis for speech recognition" @default.
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- W1788654315 doi "https://doi.org/10.1109/iscas.2002.1010952" @default.
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