Finite-sample bounds on the accuracy of plug-in estimators of fisher information
Document Type
Article
Publication Date
5-1-2021
Abstract
Finite-sample bounds on the accuracy of Bhattacharya’s plug-in estimator for Fisher information are derived. These bounds are further improved by introducing a clipping step that allows for better control over the score function. This leads to superior upper bounds on the rates of convergence, albeit under slightly different regularity conditions. The performance bounds on both estimators are evaluated for the practically relevant case of a random variable contaminated by Gaussian noise. Moreover, using Brown’s identity, two corresponding estimators of the minimum mean-square error are proposed.
Identifier
85105806933 (Scopus)
Publication Title
Entropy
External Full Text Location
https://doi.org/10.3390/e23050545
e-ISSN
10994300
Issue
5
Volume
23
Grant
CCF-1908308
Fund Ref
National Science Foundation
Recommended Citation
Cao, Wei; Dytso, Alex; Fauß, Michael; and Poor, H. Vincent, "Finite-sample bounds on the accuracy of plug-in estimators of fisher information" (2021). Faculty Publications. 4151.
https://digitalcommons.njit.edu/fac_pubs/4151