Smooth minimization of nonsmooth functions with parallel coordinate descent methods

23 Sep 2013Olivier FercoqPeter Richtárik

We study the performance of a family of randomized parallel coordinate descent methods for minimizing the sum of a nonsmooth and separable convex functions. The problem class includes as a special case L1-regularized L1 regression and the minimization of the exponential loss ("AdaBoost problem")... (read more)

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