Title :
High-order hidden Markov modelling
Author :
Du Preez, JA ; Weber, DM
Author_Institution :
Stellenbosch Univ., South Africa
Abstract :
Recently we introduced algorithms for the efficient processing of high-order hidden Markov models (HMMs) of fixed order into the literature. In this paper these techniques are generalised to also include mixed-order HMMs. This then allows first-order equivalents to be found for all HMMs, thereby providing a unifying base for reasoning about their properties. Specifically we provide formulations that separates the duration modelling and context modelling capabilities of high-order HMMs
Keywords :
hidden Markov models; context modelling; duration modelling; first-order equivalents; high-order hidden Markov modelling; mixed-order HMM; Ash; Context modeling; Delta modulation; Electronic mail; Hidden Markov models; History; Indexing; Probability density function; Speech; Topology;
Conference_Titel :
Communications and Signal Processing, 1998. COMSIG '98. Proceedings of the 1998 South African Symposium on
Conference_Location :
Rondebosch
Print_ISBN :
0-7803-5054-5
DOI :
10.1109/COMSIG.1998.736948
