Solving Ridge Regression using Sketched Preconditioned SVRG

February 07, 2016 ยท Declared Dead ยท ๐Ÿ› International Conference on Machine Learning

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Authors Alon Gonen, Francesco Orabona, Shai Shalev-Shwartz arXiv ID 1602.02350 Category cs.LG: Machine Learning Citations 48 Venue International Conference on Machine Learning Last Checked 6 months ago
Abstract
We develop a novel preconditioning method for ridge regression, based on recent linear sketching methods. By equipping Stochastic Variance Reduced Gradient (SVRG) with this preconditioning process, we obtain a significant speed-up relative to fast stochastic methods such as SVRG, SDCA and SAG.
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