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Added ReLu activation function

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lluni 2022-05-22 01:47:39 +02:00
parent 69a6c8df29
commit fc1d803c99
2 changed files with 28 additions and 5 deletions
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17
.idea/workspace.xml
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@ -4,9 +4,8 @@
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16
src/main/java/ActivationFunctions.java
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@ -36,4 +36,20 @@ public class ActivationFunctions {
private static double sigma(double value) {
return 1 / (1 + Math.exp(-value));
}
public static SimpleMatrix ReLu(SimpleMatrix A) {
SimpleMatrix B = new SimpleMatrix(A);
for (int i = 0; i < A.getNumElements(); i++) {
B.set(i, Math.max(0, A.get(i)));
}
return B;
}
public static SimpleMatrix ReLuPrime(SimpleMatrix A) {
SimpleMatrix B = new SimpleMatrix(A);
for (int i = 0; i < A.getNumElements(); i++) {
B.set(i, A.get(i) < 0 ? 0 : 1);
}
return B;
}
}