diff options
author | desaicwtf <desaicwtf@ec762483-ff6d-05da-a07a-a48fb63a330f> | 2010-07-09 16:59:55 +0000 |
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committer | desaicwtf <desaicwtf@ec762483-ff6d-05da-a07a-a48fb63a330f> | 2010-07-09 16:59:55 +0000 |
commit | 7f69c868c41e4b36eecf9d3b1dc22f3f3aa1540c (patch) | |
tree | d22aa7b6f47248ed6da02b77a0680b6b83e67b63 /gi/posterior-regularisation/prjava/src/optimization/linesearch/InterpolationPickFirstStep.java | |
parent | 4e37402323c3227e90a89345387834e149732b5c (diff) |
add optimization library source code
git-svn-id: https://ws10smt.googlecode.com/svn/trunk@204 ec762483-ff6d-05da-a07a-a48fb63a330f
Diffstat (limited to 'gi/posterior-regularisation/prjava/src/optimization/linesearch/InterpolationPickFirstStep.java')
-rw-r--r-- | gi/posterior-regularisation/prjava/src/optimization/linesearch/InterpolationPickFirstStep.java | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gi/posterior-regularisation/prjava/src/optimization/linesearch/InterpolationPickFirstStep.java b/gi/posterior-regularisation/prjava/src/optimization/linesearch/InterpolationPickFirstStep.java new file mode 100644 index 00000000..0deebcdb --- /dev/null +++ b/gi/posterior-regularisation/prjava/src/optimization/linesearch/InterpolationPickFirstStep.java @@ -0,0 +1,25 @@ +package optimization.linesearch; + + +public class InterpolationPickFirstStep extends GenericPickFirstStep{ + public InterpolationPickFirstStep(double initValue) { + super(initValue); + } + + public double getFirstStep(LineSearchMethod ls){ + if(ls.getPreviousStepUsed() != -1 && ls.getPreviousInitialGradient()!=0){ + double newStep = Math.min(300, 1.02*ls.getPreviousInitialGradient()*ls.getPreviousStepUsed()/ls.getInitialGradient()); + // System.out.println("proposing " + newStep); + return newStep; + + } + return _initValue; + } + public void collectInitValues(WolfRuleLineSearch ls){ + + } + + public void collectFinalValues(WolfRuleLineSearch ls){ + + } +} |