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http://dx.doi.org/10.6109/jkiice.2007.11.8.1596

Implementation of Speech Recognizer using Relevance Vector Machine  

Kim, Chang-Keun (동아대학교 전자공학과)
Koh, Si-Young (경일대학교 전자정보통신공학부)
Hur, Kang-In (동아대학교 전자공학과)
Lee, Kwang-Seok (진주산업대학교 전자공학과)
Abstract
In this paper, we experimented by three kind of method for feature parameter, training method and recognition algorithm of most suitable for speech recognition system and considered. We decided speech recognition system of most suitable through two kind of experiment after we make speech recognizer. First, we did an experiment about three kind of feature parameter to evaluate recognition performance of it in speech recognizer using existent MFCC and MFCC new feature parameter that change characteristic space using PCA and ICA. Second, we experimented recognition performance or HMM, SVM and RVM by studying data number. By an experiment until now, feature parameter by ICA showed performance improvement of average 1.5% than MFCC by high linear discrimination from characteristic space. RVM showed performance improvement of maximum 3.25% than HMM in an experiment by decrease of studying data. As such result, effective method for speech recognition system to propose in this paper derives feature parameters using ICA and un recognition using RVM.
Keywords
Speech Recognition; HMM; SVM; RVM; ICA; PCA; MFCC; DSP;
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