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-rw-r--r--gi/posterior-regularisation/prjava/src/optimization/stopCriteria/NormalizedProjectedGradientL2Norm.java60
1 files changed, 0 insertions, 60 deletions
diff --git a/gi/posterior-regularisation/prjava/src/optimization/stopCriteria/NormalizedProjectedGradientL2Norm.java b/gi/posterior-regularisation/prjava/src/optimization/stopCriteria/NormalizedProjectedGradientL2Norm.java
deleted file mode 100644
index 5ae554c2..00000000
--- a/gi/posterior-regularisation/prjava/src/optimization/stopCriteria/NormalizedProjectedGradientL2Norm.java
+++ /dev/null
@@ -1,60 +0,0 @@
-package optimization.stopCriteria;
-
-import optimization.gradientBasedMethods.Objective;
-import optimization.gradientBasedMethods.ProjectedObjective;
-import optimization.util.MathUtils;
-
-/**
- * Divides the norm by the norm at the begining of the iteration
- * @author javg
- *
- */
-public class NormalizedProjectedGradientL2Norm extends ProjectedGradientL2Norm{
-
- /**
- * Stop if gradientNorm/(originalGradientNorm) smaller
- * than gradientConvergenceValue
- */
- double originalProjectedNorm = -1;
-
- public NormalizedProjectedGradientL2Norm(double gradientConvergenceValue){
- super(gradientConvergenceValue);
- }
-
- public void reset(){
- originalProjectedNorm = -1;
- }
-
-
- double[] projectGradient(ProjectedObjective obj){
-
- if(obj.auxParameters == null){
- obj.auxParameters = new double[obj.getNumParameters()];
- }
- System.arraycopy(obj.getParameters(), 0, obj.auxParameters, 0, obj.getNumParameters());
- MathUtils.minusEquals(obj.auxParameters, obj.gradient, 1);
- obj.auxParameters = obj.projectPoint(obj.auxParameters);
- MathUtils.minusEquals(obj.auxParameters,obj.getParameters(),1);
- return obj.auxParameters;
- }
-
- public boolean stopOptimization(Objective obj){
- if(obj instanceof ProjectedObjective) {
- ProjectedObjective o = (ProjectedObjective) obj;
- double norm = MathUtils.L2Norm(projectGradient(o));
- if(originalProjectedNorm == -1){
- originalProjectedNorm = norm;
- }
- double normalizedNorm = 1.0*norm/originalProjectedNorm;
- if( normalizedNorm < gradientConvergenceValue){
- System.out.println("Gradient norm below normalized normtreshold: " + norm + " original: " + originalProjectedNorm + " normalized norm: " + normalizedNorm);
- return true;
- }else{
-// System.out.println("projected gradient norm: " + norm);
- return false;
- }
- }
- System.out.println("Not a projected objective");
- throw new RuntimeException();
- }
-}