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Modelling durations in hidden Markov models with application to word spotting

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1 Author(s)
J. A. du Preez ; Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa

The conventional hidden Markov model models speech fairly well with the exception of parameters that are segment-based rather than frame-based. Duration of different acoustic segments, e.g. phonemes, falls into this category. Methods are described which solve this problem. For computational purposes sub-optimal methods are often used. This paper also deals with an improvement to such an algorithm that is in current use. Some results utilizing this algorithm are given

Published in:

Communications and Signal Processing, 1991. COMSIG 1991 Proceedings., South African Symposium on

Date of Conference:

30 Aug 1991