Nokia mobile tracking zhu pets

 

Nokia mobile tracking zhu pets

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We provide the first improvement in this line of research. Our result is based on the variance reduction trick recently introduced to convex optimization, as well as a brand new analysis of variance reduction that is suitable for non-convex optimization. For objectives that are sum of smooth functions, our first-order minibatch stochastic method converges with an $O(1/\varepsilon)$ rate, and is faster than full gradient descent by $\Omega(n^{1/3})$.

We demonstrate the effectiveness of our methods on empirical risk minimizations with non-convex loss functions and training neural nets.