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Java example source code file (ParamInitializer.java)
The ParamInitializer.java Java example source code/* * * * Copyright 2015 Skymind,Inc. * * * * Licensed under the Apache License, Version 2.0 (the "License"); * * you may not use this file except in compliance with the License. * * You may obtain a copy of the License at * * * * http://www.apache.org/licenses/LICENSE-2.0 * * * * Unless required by applicable law or agreed to in writing, software * * distributed under the License is distributed on an "AS IS" BASIS, * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * * See the License for the specific language governing permissions and * * limitations under the License. * */ package org.deeplearning4j.nn.api; import org.canova.api.conf.Configuration; import org.deeplearning4j.nn.conf.NeuralNetConfiguration; import org.nd4j.linalg.api.ndarray.INDArray; import java.util.Map; /** * Param initializer for a layer * * @author Adam Gibson */ public interface ParamInitializer { int numParams(NeuralNetConfiguration conf, boolean backprop); /** * Initialize the parameters * * @param paramsMap the map (initially empty) that will contain a view of the 'paramsView' array * @param conf the configuration * @param paramsView a view of the full network (backprop) parameters * @param initializeParams if true: initialize the parameters according to the configuration. If false: don't modify the * values in the paramsView array (but do select out the appropriate subset, reshape etc as required) */ void init(Map<String, INDArray> paramsMap, NeuralNetConfiguration conf, INDArray paramsView, boolean initializeParams); /** * Return a map of gradients (in their standard non-flattened representation), taken from the flattened (row vector) gradientView array. * The idea is that operates in exactly the same way as the the paramsView does in {@link #init(Map, NeuralNetConfiguration, INDArray)}; * thus the position in the view (and, the array orders) must match those of the parameters * * @param conf Configuration * @param gradientView The flattened gradients array, as a view of the larger array * @return A map containing an array by parameter type, that is a view of the full network gradients array */ Map<String, INDArray> getGradientsFromFlattened(NeuralNetConfiguration conf, INDArray gradientView); } Other Java examples (source code examples)Here is a short list of links related to this Java ParamInitializer.java source code file: |
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