Evaluations for Estimation of an Information Source Based on State Decomposition

Joe SUZUKI

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Summary :

This paper's main objective is to analyze several procedures which select the model g among a set G of stochastic models to minimize the value of an information criterion in the form of L(g)H[g](zn)+(k(g)/2)c(n), where zn is the n observed data emitted by an information source θ which consists of the model gθG and k(gθ) mutually independent stochastic parameters in the model gθG, H[g](zn) is (-1) (the maximum log likelihood value of the data zn with respect to a model gG), and c(n) is a predetermined function (penalty function) of n which controls the amount of penalty for increasing the model size. The result is focused on specific performances when the information criteria are applied to the framework of so-called state decomposition. Especially, upper bounds are derived of the following two performance measures for each penalty function c(n): the error probability of the model selection, and the average Kullback-Leibler information between the true information source and the estimated information source.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E76-A No.7 pp.1240-1251
Publication Date
1993/07/25
Publicized
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DOI
Type of Manuscript
PAPER
Category
Information Theory and Coding Theory

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