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hiddenWidth = 20; | |
MultiLayerConfiguration conf = new NeuralNetConfiguration.Builder() | |
.optimizationAlgo(OptimizationAlgorithm.STOCHASTIC_GRADIENT_DESCENT).iterations(1) | |
.learningRate(0.05476383804339002) // 0.02 with BPTT | |
.momentum(0.5358333571512998) | |
.seed(12345) | |
.regularization(true) | |
.l2(0.016384859214629816) | |
.dropOut(0.8145498131858961) | |
.gradientNormalization(GradientNormalization.ClipElementWiseAbsoluteValue) | |
.gradientNormalizationThreshold(28.22828467793605) | |
.weightInit(WeightInit.XAVIER) | |
.updater(Updater.NESTEROVS) | |
.list() | |
.layer(0, new GravesLSTM.Builder() | |
.forgetGateBiasInit(1.2662013265922676) | |
.nIn(numInput) | |
.nOut(hiddenWidth) | |
.activation("softsign") | |
.build()) | |
.layer(1, new GravesLSTM.Builder() | |
.forgetGateBiasInit(1.2662013265922676) | |
.nIn(hiddenWidth) | |
.nOut(hiddenWidth) | |
.activation("softsign") | |
.build()) | |
.layer(2, new GravesLSTM.Builder() | |
.forgetGateBiasInit(1.2662013265922676) | |
.nIn(hiddenWidth) | |
.nOut(hiddenWidth) | |
.activation("tanh") | |
.build()) | |
.layer(3, new RnnOutputLayer.Builder(LossFunction.MSE).activation("identity") | |
.nIn(hiddenWidth).nOut(1).build()) | |
.backpropType(BackpropType.TruncatedBPTT).tBPTTForwardLength(28).tBPTTBackwardLength(28) | |
.pretrain(false).backprop(true) | |
.build(); | |
MultiLayerNetwork net = new MultiLayerNetwork(conf); | |
net.init(); | |
net.setListeners(new ScoreIterationListener(1000)); |
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