Heteroscedastic discriminant analysis and reduced rank HMMs for improved speech recognition.

Nagendra Kumar Andreas G. Andreou Heteroscedastic discriminant analysis and reduced rank HMMs for improved speech recognition. 283-297 1998 26 Speech Communication 4 http://dx.doi.org/10.1016/S0167-6393(98)00061-2 db/journals/speech/speech26.html#KumarA98