4th International Conference on Spoken Language Processing
Philadelphia, PA, USA
In this paper, we study various technics to improve the performance, to reduce the computation cost and the required memory of a recognition system based on HMM. For the efficiency of the system, we first study the optimization of the number of HMM parameters according to training data. We experiment a temporal control of the phonetic transitions on lexical decoding task with a significant 5% improvement. Finally, a preliminary method selecting dynamically a sublexicon is studied in order to reduce the lexical decoding cost.
Bibliographic reference. Montacié, C. / Caraty, M.-J. / Barras, C. (1996): "Mixture splitting technic and temporal control in a HMM-based recognition system", In ICSLP-1996, 977-980.