org.nd4j.linalg.api.ops.impl.layers.recurrent.outputs.LSTMCellOutputs Maven / Gradle / Ivy
package org.nd4j.linalg.api.ops.impl.layers.recurrent.outputs;
import java.util.Arrays;
import java.util.List;
import lombok.Getter;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.base.Preconditions;
import org.nd4j.linalg.api.ops.impl.layers.recurrent.LSTMBlockCell;
/**
* The outputs of a LSTM cell ({@link LSTMBlockCell}.
*/
@Getter
public class LSTMCellOutputs {
/**
* Output - input modulation gate activations [batchSize, numUnits].
*/
private SDVariable i;
/**
* Activations, cell state (pre tanh) [batchSize, numUnits].
*/
private SDVariable c;
/**
* Output - forget gate activations [batchSize, numUnits].
*/
private SDVariable f;
/**
* Output - output gate activations [batchSize, numUnits].
*/
private SDVariable o;
/**
* Output - input gate activations [batchSize, numUnits].
*/
private SDVariable z;
/**
* Cell state, post tanh [batchSize, numUnits].
*/
private SDVariable h;
/**
* Current cell output [batchSize, numUnits].
*/
private SDVariable y;
public LSTMCellOutputs(SDVariable[] outputs){
Preconditions.checkArgument(outputs.length == 7,
"Must have 7 LSTM cell outputs, got %s", outputs.length);
i = outputs[0];
c = outputs[1];
f = outputs[2];
o = outputs[3];
z = outputs[4];
h = outputs[5];
y = outputs[6];
}
/**
* Get all outputs returned by the cell.
*/
public List getAllOutputs(){
return Arrays.asList(i, c, f, o, z, h, y);
}
/**
* Get y, the output of the cell.
*
* Has shape [batchSize, numUnits].
*/
public SDVariable getOutput(){
return y;
}
/**
* Get c, the cell's state.
*
* Has shape [batchSize, numUnits].
*/
public SDVariable getState(){
return c;
}
}