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IEICE TRANSACTIONS on Fundamentals

Asymptotics of Bayesian Inference for a Class of Probabilistic Models under Misspecification

Nozomi MIYA, Tota SUKO, Goki YASUDA, Toshiyasu MATSUSHIMA

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Summary :

In this paper, sequential prediction is studied. The typical assumptions about the probabilistic model in sequential prediction are following two cases. One is the case that a certain probabilistic model is given and the parameters are unknown. The other is the case that not a certain probabilistic model but a class of probabilistic models is given and the parameters are unknown. If there exist some parameters and some models such that the distributions that are identified by them equal the source distribution, an assumed model or a class of models can represent the source distribution. This case is called that specifiable condition is satisfied. In this study, the decision based on the Bayesian principle is made for a class of probabilistic models (not for a certain probabilistic model). The case that specifiable condition is not satisfied is studied. Then, the asymptotic behaviors of the cumulative logarithmic loss for individual sequence in the sense of almost sure convergence and the expected loss, i.e. redundancy are analyzed and the constant terms of the asymptotic equations are identified.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.12 pp.2352-2360
Publication Date
2014/12/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E97.A.2352
Type of Manuscript
Special Section PAPER (Special Section on Information Theory and Its Applications)
Category
Prediction

Authors

Nozomi MIYA
  Waseda University
Tota SUKO
  Waseda University
Goki YASUDA
  Waseda University
Toshiyasu MATSUSHIMA
  Waseda University

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