org.deeplearning4j.zoo.model.helper.InceptionResNetHelper Maven / Gradle / Ivy
package org.deeplearning4j.zoo.model.helper;
import org.deeplearning4j.nn.conf.ComputationGraphConfiguration;
import org.deeplearning4j.nn.conf.ConvolutionMode;
import org.deeplearning4j.nn.conf.graph.ElementWiseVertex;
import org.deeplearning4j.nn.conf.graph.MergeVertex;
import org.deeplearning4j.nn.conf.graph.ScaleVertex;
import org.deeplearning4j.nn.conf.layers.ActivationLayer;
import org.deeplearning4j.nn.conf.layers.BatchNormalization;
import org.deeplearning4j.nn.conf.layers.ConvolutionLayer;
import org.nd4j.linalg.activations.Activation;
/**
* Inception is based on GoogleLeNet configuration of convolutional layers for optimization of
* resources and learning. You can use this module to add Inception to your own custom models.
*
* The GoogleLeNet paper: https://arxiv.org/abs/1409.4842
*
* This module is based on the Inception-ResNet paper that combined residual shortcuts with
* Inception-style networks: https://arxiv.org/abs/1602.07261
*
* Revised and consolidated. Likely needs further tuning for specific applications.
*
* @author Justin Long (crockpotveggies)
*/
public class InceptionResNetHelper {
public static String nameLayer(String blockName, String layerName, int i) {
return blockName + "-" + layerName + "-" + i;
}
/**
* Append Inception-ResNet A to a computation graph.
* @param graph
* @param blockName
* @param scale
* @param activationScale
* @param input
* @return
*/
public static ComputationGraphConfiguration.GraphBuilder inceptionV1ResA(
ComputationGraphConfiguration.GraphBuilder graph, String blockName, int scale,
double activationScale, String input) {
// // first add the RELU activation layer
// graph.addLayer(nameLayer(blockName,"activation1",0), new ActivationLayer.Builder().activation(Activation.TANH).build(), input);
// loop and add each subsequent resnet blocks
String previousBlock = input;
for (int i = 1; i <= scale; i++) {
graph
// 1x1
.addLayer(nameLayer(blockName, "cnn1", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(192).nOut(32)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
previousBlock)
.addLayer(nameLayer(blockName, "batch1", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(32)
.nOut(32).build(),
nameLayer(blockName, "cnn1", i))
// 1x1 -> 3x3
.addLayer(nameLayer(blockName, "cnn2", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(192).nOut(32)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
previousBlock)
.addLayer(nameLayer(blockName, "batch2", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(32)
.nOut(32).build(),
nameLayer(blockName, "cnn2", i))
.addLayer(nameLayer(blockName, "cnn3", i),
new ConvolutionLayer.Builder(new int[] {3, 3})
.convolutionMode(ConvolutionMode.Same).nIn(32).nOut(32)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "batch2", i))
.addLayer(nameLayer(blockName, "batch3", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(32)
.nOut(32).build(),
nameLayer(blockName, "cnn3", i))
// 1x1 -> 3x3 -> 3x3
.addLayer(nameLayer(blockName, "cnn4", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(192).nOut(32)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
previousBlock)
.addLayer(nameLayer(blockName, "batch4", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(32)
.nOut(32).build(),
nameLayer(blockName, "cnn4", i))
.addLayer(nameLayer(blockName, "cnn5", i),
new ConvolutionLayer.Builder(new int[] {3, 3})
.convolutionMode(ConvolutionMode.Same).nIn(32).nOut(32)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "batch4", i))
.addLayer(nameLayer(blockName, "batch5", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(32)
.nOut(32).build(),
nameLayer(blockName, "cnn5", i))
.addLayer(nameLayer(blockName, "cnn6", i),
new ConvolutionLayer.Builder(new int[] {3, 3})
.convolutionMode(ConvolutionMode.Same).nIn(32).nOut(32)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "batch5", i))
.addLayer(nameLayer(blockName, "batch6", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(32)
.nOut(32).build(),
nameLayer(blockName, "cnn6", i))
// --> 1x1 --> scaling -->
.addVertex(nameLayer(blockName, "merge1", i), new MergeVertex(),
nameLayer(blockName, "batch1", i), nameLayer(blockName, "batch3", i),
nameLayer(blockName, "batch6", i))
.addLayer(nameLayer(blockName, "cnn7", i),
new ConvolutionLayer.Builder(new int[] {3, 3})
.convolutionMode(ConvolutionMode.Same).nIn(96).nOut(192)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "merge1", i))
.addLayer(nameLayer(blockName, "batch7", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(192)
.nOut(192).build(),
nameLayer(blockName, "cnn7", i))
.addVertex(nameLayer(blockName, "scaling", i), new ScaleVertex(activationScale),
nameLayer(blockName, "batch7", i))
// -->
.addLayer(nameLayer(blockName, "shortcut-identity", i),
new ActivationLayer.Builder().activation(Activation.IDENTITY).build(),
previousBlock)
.addVertex(nameLayer(blockName, "shortcut", i),
new ElementWiseVertex(ElementWiseVertex.Op.Add),
nameLayer(blockName, "scaling", i),
nameLayer(blockName, "shortcut-identity", i));
// leave the last vertex as the block name for convenience
if (i == scale)
graph.addLayer(blockName, new ActivationLayer.Builder().activation(Activation.TANH).build(),
nameLayer(blockName, "shortcut", i));
else
graph.addLayer(nameLayer(blockName, "activation", i),
new ActivationLayer.Builder().activation(Activation.TANH).build(),
nameLayer(blockName, "shortcut", i));
previousBlock = nameLayer(blockName, "activation", i);
}
return graph;
}
/**
* Append Inception-ResNet B to a computation graph.
* @param graph
* @param blockName
* @param scale
* @param activationScale
* @param input
* @return
*/
public static ComputationGraphConfiguration.GraphBuilder inceptionV1ResB(
ComputationGraphConfiguration.GraphBuilder graph, String blockName, int scale,
double activationScale, String input) {
// first add the RELU activation layer
graph.addLayer(nameLayer(blockName, "activation1", 0),
new ActivationLayer.Builder().activation(Activation.TANH).build(), input);
// loop and add each subsequent resnet blocks
String previousBlock = nameLayer(blockName, "activation1", 0);
for (int i = 1; i <= scale; i++) {
graph
// 1x1
.addLayer(nameLayer(blockName, "cnn1", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(576).nOut(128)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
previousBlock)
.addLayer(nameLayer(blockName, "batch1", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(128)
.nOut(128).build(),
nameLayer(blockName, "cnn1", i))
// 1x1 -> 3x3 -> 3x3
.addLayer(nameLayer(blockName, "cnn2", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(576).nOut(128)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
previousBlock)
.addLayer(nameLayer(blockName, "batch2", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(128)
.nOut(128).build(),
nameLayer(blockName, "cnn2", i))
.addLayer(nameLayer(blockName, "cnn3", i),
new ConvolutionLayer.Builder(new int[] {1, 3})
.convolutionMode(ConvolutionMode.Same).nIn(128).nOut(128)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "batch2", i))
.addLayer(nameLayer(blockName, "batch3", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(128)
.nOut(128).build(),
nameLayer(blockName, "cnn3", i))
.addLayer(nameLayer(blockName, "cnn4", i),
new ConvolutionLayer.Builder(new int[] {3, 1})
.convolutionMode(ConvolutionMode.Same).nIn(128).nOut(128)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "batch3", i))
.addLayer(nameLayer(blockName, "batch4", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(128)
.nOut(128).build(),
nameLayer(blockName, "cnn4", i))
// --> 1x1 --> scaling -->
.addVertex(nameLayer(blockName, "merge1", i), new MergeVertex(),
nameLayer(blockName, "batch1", i), nameLayer(blockName, "batch4", i))
.addLayer(nameLayer(blockName, "cnn5", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(256).nOut(576)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "merge1", i))
.addLayer(nameLayer(blockName, "batch5", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(576)
.nOut(576).build(),
nameLayer(blockName, "cnn5", i))
.addVertex(nameLayer(blockName, "scaling", i), new ScaleVertex(activationScale),
nameLayer(blockName, "batch5", i))
// -->
.addLayer(nameLayer(blockName, "shortcut-identity", i),
new ActivationLayer.Builder().activation(Activation.IDENTITY).build(),
previousBlock)
.addVertex(nameLayer(blockName, "shortcut", i),
new ElementWiseVertex(ElementWiseVertex.Op.Add),
nameLayer(blockName, "scaling", i),
nameLayer(blockName, "shortcut-identity", i));
// leave the last vertex as the block name for convenience
if (i == scale)
graph.addLayer(blockName, new ActivationLayer.Builder().activation(Activation.TANH).build(),
nameLayer(blockName, "shortcut", i));
else
graph.addLayer(nameLayer(blockName, "activation", i),
new ActivationLayer.Builder().activation(Activation.TANH).build(),
nameLayer(blockName, "shortcut", i));
previousBlock = nameLayer(blockName, "activation", i);
}
return graph;
}
/**
* Append Inception-ResNet C to a computation graph.
* @param graph
* @param blockName
* @param scale
* @param activationScale
* @param input
* @return
*/
public static ComputationGraphConfiguration.GraphBuilder inceptionV1ResC(
ComputationGraphConfiguration.GraphBuilder graph, String blockName, int scale,
double activationScale, String input) {
// loop and add each subsequent resnet blocks
String previousBlock = input;
for (int i = 1; i <= scale; i++) {
graph
// 1x1
.addLayer(nameLayer(blockName, "cnn1", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(1344).nOut(192)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
previousBlock)
.addLayer(nameLayer(blockName, "batch1", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(192)
.nOut(192).build(),
nameLayer(blockName, "cnn1", i))
// 1x1 -> 1x3 -> 3x1
.addLayer(nameLayer(blockName, "cnn2", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(1344).nOut(192)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
previousBlock)
.addLayer(nameLayer(blockName, "batch2", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(192)
.nOut(192).build(),
nameLayer(blockName, "cnn2", i))
.addLayer(nameLayer(blockName, "cnn3", i),
new ConvolutionLayer.Builder(new int[] {1, 3})
.convolutionMode(ConvolutionMode.Same).nIn(192).nOut(192)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "batch2", i))
.addLayer(nameLayer(blockName, "batch3", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001).nIn(192)
.nOut(192).build(),
nameLayer(blockName, "cnn3", i))
.addLayer(nameLayer(blockName, "cnn4", i),
new ConvolutionLayer.Builder(new int[] {3, 1})
.convolutionMode(ConvolutionMode.Same).nIn(192).nOut(192)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "batch3", i))
.addLayer(nameLayer(blockName, "batch4", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001)
.activation(Activation.TANH).nIn(192).nOut(192).build(),
nameLayer(blockName, "cnn4", i))
// --> 1x1 --> scale -->
.addVertex(nameLayer(blockName, "merge1", i), new MergeVertex(),
nameLayer(blockName, "batch1", i), nameLayer(blockName, "batch4", i))
.addLayer(nameLayer(blockName, "cnn5", i),
new ConvolutionLayer.Builder(new int[] {1, 1})
.convolutionMode(ConvolutionMode.Same).nIn(384).nOut(1344)
.cudnnAlgoMode(ConvolutionLayer.AlgoMode.NO_WORKSPACE)
.build(),
nameLayer(blockName, "merge1", i))
.addLayer(nameLayer(blockName, "batch5", i),
new BatchNormalization.Builder(false).decay(0.995).eps(0.001)
.activation(Activation.TANH).nIn(1344).nOut(1344).build(),
nameLayer(blockName, "cnn5", i))
.addVertex(nameLayer(blockName, "scaling", i), new ScaleVertex(activationScale),
nameLayer(blockName, "batch5", i))
// -->
.addLayer(nameLayer(blockName, "shortcut-identity", i),
new ActivationLayer.Builder().activation(Activation.IDENTITY).build(),
previousBlock)
.addVertex(nameLayer(blockName, "shortcut", i),
new ElementWiseVertex(ElementWiseVertex.Op.Add),
nameLayer(blockName, "scaling", i),
nameLayer(blockName, "shortcut-identity", i));
// leave the last vertex as the block name for convenience
if (i == scale)
graph.addLayer(blockName, new ActivationLayer.Builder().activation(Activation.TANH).build(),
nameLayer(blockName, "shortcut", i));
else
graph.addLayer(nameLayer(blockName, "activation", i),
new ActivationLayer.Builder().activation(Activation.TANH).build(),
nameLayer(blockName, "shortcut", i));
previousBlock = nameLayer(blockName, "activation", i);
}
return graph;
}
}
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