4th International Conference on Spoken Language Processing

Philadelphia, PA, USA
October 3-6, 1996

Mixture Splitting Technic and Temporal Control in a HMM-based Recognition System

C. Montacié, M.-J. Caraty, C. Barras

LAFORIA-IBP, Université Paris 6, Paris 5, France

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.

Full Paper

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.