EUROSPEECH '91
Second European Conference on Speech Communication and Technology

Genova, Italy
September 24-26, 1991

                 

Adaptation Techniques in Tied Density Hidden Markov Models

S. Euler

TELENORMA, Bosch Telecom, Frankfurt a. M. , Germany

In this paper we discuss the extension of an isolated word recognition system based on tied density hidden Markov models towards a digit string recognition system. Starting from the models for isolated digits we compare different schemes developed in order to adapt the models. In particular, the modular concept of the recognition system based on tied density hidden Markov models allows to modify either the parameters of the underlying densities or only the weights of the given densities in the model states.

Full Paper

Bibliographic reference.  Euler, S. (1991): "Adaptation techniques in tied density hidden Markov models", In EUROSPEECH-1991, 919-922.