# Difference between revisions of "Back Propagation"

From Rodinia

(New page: 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 ...) |
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backwards to adjust the weights and bias values. In each layer, the processing | backwards to adjust the weights and bias values. In each layer, the processing | ||

of all the nodes can be done in parallel. | of all the nodes can be done in parallel. | ||

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+ | Our code implementation is a modified version of the backpropgation described in this [http://www.cs.cmu.edu/afs/cs.cmu.edu/user/mitchell/ftp/faces.html link] |

## Revision as of 22:39, 23 July 2008

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