[KongchangAI]
Conceptmini-KFAC EWC / Kronecker-Factored Approximate Curvature

mini-KFAC

An optimization method that approximates the block structure of the Fisher information matrix using Kronecker-factored decomposition. It captures second-order curvature information among intra-layer parameters, providing more accurate parameter importance estimates than diagonal EWC approaches.

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Oct 12

In scenarios where regularization is needed, mini-KFAC EWC can achieve lower word error rates and a more stable optimization process compared to standard diagonal EWC.

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Oct 12

mini-KFAC is a further simplification of full KFAC that controls memory and computational overhead by reducing the number of samples used for statistical estimation per layer, striking a balance between accuracy and efficiency.

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