package com.intel.daal.examples.neural_networks;
import com.intel.daal.algorithms.neural_networks.layers.spatial_stochastic_pooling2d.*;
import com.intel.daal.algorithms.neural_networks.layers.ForwardResultId;
import com.intel.daal.algorithms.neural_networks.layers.ForwardResultLayerDataId;
import com.intel.daal.algorithms.neural_networks.layers.ForwardInputId;
import com.intel.daal.algorithms.neural_networks.layers.BackwardResultId;
import com.intel.daal.algorithms.neural_networks.layers.BackwardInputId;
import com.intel.daal.algorithms.neural_networks.layers.BackwardInputLayerDataId;
import com.intel.daal.data_management.data.Tensor;
import com.intel.daal.data_management.data.HomogenTensor;
import com.intel.daal.examples.utils.Service;
import com.intel.daal.services.DaalContext;
import com.intel.daal.data_management.data.NumericTable;
class SpatStochPool2DLayerDenseBatch {
private static final String datasetFileName = "../data/batch/layer_non_negative.csv";
private static DaalContext context = new DaalContext();
private static long pyramidHeight = 2;
public static void main(String[] args) throws java.io.FileNotFoundException, java.io.IOException {
long[] dimensionSizes = new long[4];
dimensionSizes[0] = 2;
dimensionSizes[1] = 1;
dimensionSizes[2] = 16;
dimensionSizes[3] = 16;
double[] data = new double[512];
Tensor dataTensor = new HomogenTensor(context, dimensionSizes, data, 1.0);
long nDim = dataTensor.getDimensions().length;
Service.printTensor("Forward two-dimensional stochastic pooling input (first 10 rows):", dataTensor, 10, 0);
SpatialStochasticPooling2dForwardBatch spatialStochPooling2DLayerForward = new SpatialStochasticPooling2dForwardBatch(context, Float.class,
SpatialStochasticPooling2dMethod.defaultDense,
pyramidHeight, nDim);
spatialStochPooling2DLayerForward.input.set(ForwardInputId.data, dataTensor);
SpatialStochasticPooling2dForwardResult forwardResult = spatialStochPooling2DLayerForward.compute();
Service.printTensor("Forward two-dimensional stochastic pooling result (first 5 rows):", forwardResult.get(ForwardResultId.value), 5, 0);
Service.printTensor("Forward two-dimensional stochastic pooling layer selected indices (first 5 rows):",
forwardResult.get(SpatialStochasticPooling2dLayerDataId.auxSelectedIndices), 5, 0);
SpatialStochasticPooling2dBackwardBatch spatialStochPooling2DLayerBackward = new SpatialStochasticPooling2dBackwardBatch(context, Float.class,
SpatialStochasticPooling2dMethod.defaultDense,
pyramidHeight, nDim);
spatialStochPooling2DLayerBackward.input.set(BackwardInputId.inputGradient, forwardResult.get(ForwardResultId.value));
spatialStochPooling2DLayerBackward.input.set(BackwardInputLayerDataId.inputFromForward,
forwardResult.get(ForwardResultLayerDataId.resultForBackward));
SpatialStochasticPooling2dBackwardResult backwardResult = spatialStochPooling2DLayerBackward.compute();
Service.printTensor("Backward two-dimensional stochastic pooling result (first 10 rows):", backwardResult.get(BackwardResultId.gradient), 10, 0);
context.dispose();
}
}