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Generalized Stochastic Gradient Learning

George Evans (), Seppo Honkapohja () and Noah Williams ()

Cambridge Working Papers in Economics from Faculty of Economics, University of Cambridge

Abstract: We study the properties of generalized stochastic gradient (GSG) learning in forwardlooking models. We examine how the conditions for stability of standard stochastic gradient (SG) learning both di1er 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.

Keywords: adaptive learning; E-stability; recursive least squares; robust estimation (search for similar items in EconPapers)
JEL-codes: C62 C65 D83 E10 E17 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-mac
Date: 2005-10
Note: Ma
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Related works:
Journal Article: GENERALIZED STOCHASTIC GRADIENT LEARNING (2010) Downloads
Working Paper: Generalized Stochastic Gradient Learning (2008) Downloads
Working Paper: Generalized Stochastic Gradient Learning (2005) Downloads
Working Paper: Generalized Stochastic Gradient Learning (2005) Downloads
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