Gradient descent with a recursively repeated silver stepsize schedule achieves an anytime convergence rate of O(T^{-1.119}) for smooth convex functions, and exp(-Omega(T/kappa^{0.893})) for strongly convex functions.
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Anytime Acceleration of Gradient Descent
Gradient descent with a recursively repeated silver stepsize schedule achieves an anytime convergence rate of O(T^{-1.119}) for smooth convex functions, and exp(-Omega(T/kappa^{0.893})) for strongly convex functions.