A variational interpretation of the Cramér–Rao bound
A variational interpretation of the Cramér–Rao bound
复制标题
CramérâRao 界的变分解释
DOI:
10.1016/j.sigpro.2020.107917
复制
发表时间:
2021
影响因子:
4.4
通讯作者:
Poor, H. Vincent
中科院分区:
文献类型:
--
作者:
Fauß, Michael;Dytso, Alex;Poor, H. Vincent
It is shown that both the classic and the Bayesian Cramér–Rao bounds can be obtained by minimizing the mean square error of an estimator while constraining the underlying distribution to be within a Fisher information ball. The presented results allow for some nonstandard interpretations of the Cramér–Rao bound and, more importantly, provide a template for novel bounds on the accuracy of estimators.