com.expleague.ml.models.nn.layers.ConstSizeInput3D Maven / Gradle / Ivy
package com.expleague.ml.models.nn.layers;
import com.expleague.commons.math.vectors.Vec;
import com.expleague.commons.math.vectors.VecTools;
public class ConstSizeInput3D implements InputLayerBuilder {
private int yStart;
private Vec input;
private final int ydim;
private final InputLayer layer = new Input3D();
private final int height;
private final int width;
private final int channels;
@Override
public Layer getLayer() {
return layer;
}
@Override
public LayerBuilder yStart(int yStart) {
this.yStart = yStart;
return this;
}
private int getyStart() {
return yStart;
}
public ConstSizeInput3D(int height, int width, int channels) {
ydim = height * width * channels;
this.height = height;
this.width = width;
this.channels = channels;
if (ydim <= 0) {
throw new IllegalArgumentException("dims product must be greater than zero");
}
}
@Override
public void setInput(Vec input) {
this.input = input;
}
@Override
public int ydim(Vec input) {
return ydim;
}
@Override
public InputLayer build() {
return layer;
}
public class Input3D implements InputLayer, Layer3D {
@Override
public void toState(Vec state) {
VecTools.assign(state.sub(yStart, input.dim()), input);
}
@Override
public int height() {
return height;
}
@Override
public int width() {
return width;
}
@Override
public int channels() {
return channels;
}
@Override
public int xdim() {
return ydim;
}
@Override
public int ydim() {
return ydim;
}
@Override
public int yStart() {
return getyStart();
}
@Override
public void initWeights(Vec weights) { }
@Override
public String toString() {
return "Input [" + height + ", " + width + ", " + channels + "]";
}
}
}
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