Statistical Methods for Spoken Dialogue Management by Blaise Thomson

Author:Blaise Thomson
Language: eng
Format: epub
Publisher: Springer London, London

4.5 Experimental Comparison of Inference Algorithms

An experimental evaluation of the efficiency improvements due to the above simplifications was performed by testing computation times on two simple Hidden Markov Models.2 All computations use the factored-frontier algorithm discussed in Chap. 3 with only the current and previous time-slices for updates. Since the models analysed all have a tree structure for the single time-slice network, this is equivalent to the Boyen-Koller algorithm in this special case. A detailed description of the models is given in Appendix C.

Four optimisations are compared:The standard LBP algorithm (lbp).

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