49 lines
2.2 KiB
Java
49 lines
2.2 KiB
Java
/*******************************************************************************
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* Copyright (c) 2015-2019 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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package org.deeplearning4j.nn.weights;
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import org.nd4j.linalg.api.ndarray.INDArray;
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import org.nd4j.shade.jackson.annotation.JsonAutoDetect;
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import org.nd4j.shade.jackson.annotation.JsonTypeInfo;
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import java.io.Serializable;
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/**
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* Interface for weight initialization.
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*
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* @author Christian Skarby
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*/
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@JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, include = JsonTypeInfo.As.PROPERTY, property = "@class")
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@JsonAutoDetect(fieldVisibility = JsonAutoDetect.Visibility.ANY, getterVisibility = JsonAutoDetect.Visibility.NONE,
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setterVisibility = JsonAutoDetect.Visibility.NONE)
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public interface IWeightInit extends Serializable {
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// Use this in a default method when java 8 support is added
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char DEFAULT_WEIGHT_INIT_ORDER = WeightInitUtil.DEFAULT_WEIGHT_INIT_ORDER;
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/**
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* Initialize parameters in the given view. Double values are used for fanIn and fanOut as some layers
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* (convolution with stride) results in a non-integer number which may be truncated to zero in certain configurations
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* @param fanIn Number of input parameters
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* @param fanOut Number of output parameters
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* @param shape Desired shape of array (users shall assume paramView has this shape after method has finished)
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* @param order Order of array, e.g. Fortran ('f') or C ('c')
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* @param paramView View of parameters to initialize (and reshape)
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*/
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INDArray init(double fanIn, double fanOut, long[] shape, char order, INDArray paramView);
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}
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