SDCA without Duality

February 22, 2015 ยท Declared Dead ยท ๐Ÿ› arXiv.org

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Authors Shai Shalev-Shwartz arXiv ID 1502.06177 Category cs.LG: Machine Learning Citations 48 Venue arXiv.org Last Checked 6 months ago
Abstract
Stochastic Dual Coordinate Ascent is a popular method for solving regularized loss minimization for the case of convex losses. In this paper we show how a variant of SDCA can be applied for non-convex losses. We prove linear convergence rate even if individual loss functions are non-convex as long as the expected loss is convex.
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