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IEICE TRANSACTIONS on Fundamentals

Meta-Bound on Lower Bounds of Bayes Risk in Parameter Estimation

Shota SAITO

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Summary :

Information-theoretic lower bounds of the Bayes risk have been investigated for a problem of parameter estimation in a Bayesian setting. Previous studies have proven the lower bound of the Bayes risk in a different manner and characterized the lower bound via different quantities such as mutual information, Sibson's α-mutual information, f-divergence, and Csiszár's f-informativity. In this paper, we introduce an inequality called a “meta-bound for lower bounds of the Bayes risk” and show that the previous results can be derived from this inequality.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E107-A No.3 pp.503-509
Publication Date
2024/03/01
Publicized
2023/08/09
Online ISSN
1745-1337
DOI
10.1587/transfun.2023TAP0002
Type of Manuscript
Special Section PAPER (Special Section on Information Theory and Its Applications)
Category
Estimation

Authors

Shota SAITO
  Gunma University

Keyword