bpt.train();
// add softmax function
LayerCalculatorImpl lc = (LayerCalculatorImpl) mlp.getLayerCalculator();
ConnectionCalculatorFullyConnected cc = (ConnectionCalculatorFullyConnected) lc.getConnectionCalculator(mlp.getOutputLayer());
cc.addActivationFunction(new SoftmaxFunction());
// test
bpt.test();
assertEquals(0, bpt.getOutputError().getTotalNetworkError(), 0.1);