blob: 4b354fd9035ea3909dcfa2783c355ecefa7710ea (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
package optimization.linesearch;
/**
* Non newtwon since we don't always try 1...
* Not sure if that is even usefull for newton
* @author javg
*
*/
public class NonNewtonInterpolationPickFirstStep extends GenericPickFirstStep{
public NonNewtonInterpolationPickFirstStep(double initValue) {
super(initValue);
}
public double getFirstStep(LineSearchMethod ls){
// System.out.println("Previous step used " + ls.getPreviousStepUsed());
// System.out.println("PreviousGradinebt " + ls.getPreviousInitialGradient());
// System.out.println("CurrentGradinebt " + ls.getInitialGradient());
if(ls.getPreviousStepUsed() != -1 && ls.getPreviousInitialGradient()!=0){
double newStep = 1.01*ls.getPreviousInitialGradient()*ls.getPreviousStepUsed()/ls.getInitialGradient();
//System.out.println("Suggesting " + newStep);
return newStep;
}
return _initValue;
}
public void collectInitValues(WolfRuleLineSearch ls){
}
public void collectFinalValues(WolfRuleLineSearch ls){
}
}
|
