Large Vocabulary Continuous Speech Recognition - Berlin Chen
Large Vocabulary Continuous Speech Recognition - Berlin Chen
Large Vocabulary Continuous Speech Recognition - Berlin Chen
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WC: Implementation Issues (2/3)• Organization of active path hypotheses (states)– Flat organizationActive HMM States at frame t+1at frame tData-drivenNew HMM Statesvn−11vvn−11n−11a ks 2a ks 2a ks 3a js 11a js 1n−1a js 2v a js 2vvvvn−11n−11n−11n−11a js 3Acoustic level recombinationQvn −11maxs′( t,s;arc )[ Q n −1( t − 1, s′; arc ) P( s s′; arc )] P( xts;arc )v1=C ++ STL (Standard Template Libraries)is suitable for such an accesslog( NS )for the access of any HMM stateNS: the number of HMM states<strong>Speech</strong> – <strong>Berlin</strong> <strong>Chen</strong> 19
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