SDCA without Duality, Regularization, and Individual Convexity

February 04, 2016 ยท Declared Dead ยท ๐Ÿ› International Conference on Machine Learning

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Authors Shai Shalev-Shwartz arXiv ID 1602.01582 Category cs.LG: Machine Learning Citations 106 Venue International Conference on Machine Learning Last Checked 3 months ago
Abstract
Stochastic Dual Coordinate Ascent is a popular method for solving regularized loss minimization for the case of convex losses. We describe variants of SDCA that do not require explicit regularization and do not rely on duality. We prove linear convergence rates even if individual loss functions are non-convex, as long as the expected loss is strongly convex.
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