资源论文Accelerated Mini-Batch Stochastic Dual Coordinate Ascent

Accelerated Mini-Batch Stochastic Dual Coordinate Ascent

2020-01-16 | |  64 |   40 |   0

Abstract

Stochastic dual coordinate ascent (SDCA) is an effective technique for solving regularized loss minimization problems in machine learning. This paper considers an extension of SDCA under the mini-batch setting that is often used in practice. Our main contribution is to introduce an accelerated mini-batch version of SDCA and prove a fast convergence rate for this method. We discuss an implementation of our method over a parallel computing system, and compare the results to both the vanilla stochastic dual coordinate ascent and to the accelerated deterministic gradient descent method of Nesterov [2007].

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