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Monotonicity of Entropy and Fisher Information: A Quick Proof via Maximal Correlation

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arxiv 1610.04174 v1 pith:64BFXZCB submitted 2016-10-13 cs.IT math.ITmath.PR

classification cs.ITmath.ITmath.PR
keywords proofcorrelationentropyfisherinformationmaximalmonotonicitysums
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A simple proof is given for the monotonicity of entropy and Fisher information associated to sums of i.i.d. random variables. The proof relies on a characterization of maximal correlation for partial sums due to Dembo, Kagan and Shepp.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Sub-Gaussian Concentration and Entropic Normality of the Maximum Likelihood Estimator

    cs.IT 2026-05 unverdicted novelty 6.0 of 10

    Under regularity conditions plus assumptions on the score, the normalized MLE has sub-Gaussian tails, all moments converge, and the estimator converges in relative entropy to Gaussian when Fisher information is bounde...

  2. Causal Covariate Shift Correction using Fisher information penalty

    cs.LG 2025-02 reject novelty 4.0 of 10

    A Fisher information penalty added to the loss during batchwise training is claimed to correct covariate shift and improve accuracy, but the supporting derivation and experiments are incomplete.

  3. PIcsC: Partitioning-Induced Covariate Shift Correction

    cs.LG 2026-07 reject novelty 3.0 of 10

    A Fisher-information regularizer is proposed to correct partition-induced covariate shift in cross-validation and federated learning, with reported gains of 3-5 points over FedAvg-class baselines.

  4. Confidence-calibrated covariate shift correction for few-shot classification in Vision-Language Models

    cs.CV 2025-02 reject novelty 3.0 of 10

    A proposed unified regularizer for CLIP prompt learning, combining Fisher information and confidence penalties, is reported to improve few-shot accuracy and calibration, but the core combined method is not tested and ...

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