Network Architecture
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Presentation Transcript
Network Architecture • Networks trained using conjugate gradient algorithm, over fifty epochs and • with ten Ntuples. • Values given are averages over the networks in the lowest error function bin.
Training of networks • Two aspects of training studied; - Training sample size (number of Ntuples used) - Number of training epochs • networks with one hidden layer containing two nodes. • All networks trained using conjugate gradient algorithm.
Training input sample size • All networks trained over fifty epochs. • Results given are an average of all the networks in the lowest error function • bin.
Average purity and leakage rates as a function of sample size
Number of epochs in training • All networks trained over 10 Ntuples. Two hidden nodes
Varying the cut on Mpt • The following plots show purity and leakage rates as a function of efficiency. • The plots include the best networks for two hidden nodes and four hidden nodes • with three input variables and the best network for two hidden nodes and two input • variables.