W. Belfield

Unsupervised training of an HMM-based self-organizing unit recognizer with applications to topic classification and keyword discovery

Herbert Gish, Man-Hung Siu, Steve Lowe, 2014, Comput. Speech Lang..

Unsupervised training of an HMM-based speech recognizer for topic classification

Herbert Gish, Man-Hung Siu, Arthur Chan, 2009, INTERSPEECH.