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Showing 1 to 1 of 1 for “"Residual Feedback"”.
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A NEW ZEROTH-ORDER ORACLE FOR DISTRIBUTED AND NON-STATIONARY LEARNING
… Many existing ZO methods adopt the two-point feedback scheme to approximate the unknown gradient due to its low estimation variance and fast convergence speed. Specifically, two-point ZO method estimates the gradient at the current iterate of the algorithm by querying the objective function …