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ConceptFisher Information Metric / FIM / Fisher信息矩阵

Fisher Information Metric

A Riemannian metric on statistical manifolds that measures how much a probability distribution changes in response to small perturbations of model parameters. It is coordinate-invariant and can be applied in optimization contexts such as neural network pruning.

Timeline (last 90 days)

Sep 16

The paper proposes using geodesic distance determined by the Fisher information metric as a measure of the true change brought about by pruning.

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Sep 16

The Fisher information metric is a Riemannian metric on the statistical manifold, proposed by statistician Ronald Fisher, and has the property of being coordinate-independent.

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