On a model of visual cortex: learning invariance and selectivity
Author(s)Caponnetto, Andrea; Poggio, Tomaso; Smale, Steve
Center for Biological and Computational Learning (CBCL)
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In this paper we present a class of algorithms for similarity learning on spaces of images. The general framework that we introduce is motivated by some well-known hierarchical pre-processing architectures for object recognition which have been developed during the last decade, and which have been in some cases inspired by functional models of the ventral stream of the visual cortex. These architectures are characterized by the construction of a hierarchy of âlocalâ feature representations of the visual stimulus. We show that our framework includes some well-known techniques, and that it is suitable for the analysis of dynamic visual stimuli, presenting a quantitative error analysis in this setting.
Learning Theory, Hierarchical Architecture Theory, Unsupervised Learning, Theory of the Visual Cortex
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