EUROSPEECH 2003 - INTERSPEECH 2003
This paper extends prior work in multi-stream modeling by introducing cross-stream observation dependencies and a new discriminative criterion for selecting such dependencies. Experimental results combining short-term PLP features with long-term TRAP features show gains associated with a multi-stream model with partial state asynchrony over a baseline HMM. Frame-based analyses show significant discriminant information in the added cross-stream dependencies, but so far there are only small gains in recognition accuracy.
Bibliographic reference. Cetin, Ozgur / Ostendorf, Mari (2003): "Cross-stream observation dependencies for multi-stream speech recognition", In EUROSPEECH-2003, 2517-2520.