Biologically inspired bayes learning and its dependence on the distribution of the receptive fields

Authors:
Liang Wu;Predrag Neskovic;Leon N Cooper
Affiliations:
Institute for Brain and Neural Systems and Department of Physics, Brown University, Providence, RI;Institute for Brain and Neural Systems and Department of Physics, Brown University, Providence, RI;Institute for Brain and Neural Systems and Department of Physics, Brown University, Providence, RI
Venue:
ICNC'06 Proceedings of the Second international conference on Advances in Natural Computation - Volume Part I
Year:
2006

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Abstract

In this work we explore the dependence of the Bayesian Integrate And Shift (BIAS) learning algorithm on various parameters associated with designing the retina-like distribution of the receptive fields. The parameters that we consider are: the rate of increase of the sizes of the receptive fields, the overlap among the receptive fields, the size of the central receptive field, and the number of directions along which the centers of the receptive fields are placed. We show that the learning algorithm is very robust to changes in parameter values and that the recognition rates are higher when using a retina-like distribution of receptive fields compared to uniform distributions.