Back Propagation

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Revision as of 03:55, 26 November 2008 by 204.111.254.163 (Talk)

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Back Propagation is a machine-learning algorithm that trains the weights of connecting nodes on a layered neural network. The application is comprised of two phases: the Forward Phase, in which the activations are propagated from the input to the output layer, and the Backward Phase, in which the error between the observed and requested values in the output layer is propagated backwards to adjust the weights and bias values. In each layer, the processing of all the nodes can be done in parallel.

Our code implementation is a modified version of the backpropgation described in this link(Machine Learning, Tom Mitchell, McGraw Hill, 1997)

The tailered CPU and GPU code can be found athere.

The optimized GPU code will come soon