pith. sign in

Therefore, we conclude that |I4| ≲ ∥Λ∥2 F (1 − ρτ)3 · 1 tβt

The analysis of I4 is almost identical to I3, only with the expectation term being replaced by X p,q E h U Teθk1eθkT 1 U p,q U Teθk2eθkT 2 U p,q i = X p,q Γ2 p,q = ∥Γ∥2 F = ∥Λ∥2 F when k1 ̸= k2 · 2022

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  • Online Covariance Matrix Estimation in Sketched Newton Methods stat.ML · 2025-02-10 · unverdicted · none · ref 21

    Develops a batch-free online covariance estimator for sketched Newton methods, proves its consistency, and demonstrates use for online statistical inference on regression and CUTEst problems.