Generalized Stochastic Gradient Learning
47 Pages Posted: 19 Sep 2007 Last revised: 16 May 2021
There are 3 versions of this paper
Generalized Stochastic Gradient Learning
Generalized Stochastic Gradient Learning
Generalized Stochastic Gradient Learning
Date Written: October 2005
Abstract
We study the properties of generalized stochastic gradient (GSG) learning in forward-looking models. We examine how the conditions for stability of standard stochastic gradient (SG) learning both differ from and are related to E-stability, which governs stability under least squares learning. SG algorithms are sensitive to units of measurement and we show that there is a transformation of variables for which E-stability governs SG stability. GSG algorithms with constant gain have a deeper justification in terms of parameter drift, robustness and risk sensitivity.
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