public class OptionalOperatorTuningScheme extends AbstractOptimizationScheme
Defining the behavior of the tuner:
For testing purpose the tuner can be disabled via the boolean doOperatorTuning. A property tune can also carry the ability to deactivate operators completely in case a certain operator was not able to generate any cost improvement during the optimization run.
private boolean doOperatorTuning = true;
private boolean hasLicense2Kill = true;
Bound probability values. Probability values for the operators need to be within bounds.
double minValue = 1.0;
double maxValue = 100.0;
A score is defined partially by the number of beneficial calls and partially by the average cost reduction per call. A weightageForCost of 0.9 means 90% of the new probability is based on the cost reduction value.
double weightageForCost = 0.9;
When we assign new probability score we smooth it with the old score. For example a weightageForOldProbability of 0.3 means we take 30% of the old value and 70% of the new value
double weightageForOldProbability = 0.8;
Building the OperatorProbabilityTunerPropertyItem:
OperatorProbabilityTunerPropertyItem tunigProps = OperatorProbabilityTunerPropertyItem.builder()
Invoke scheme with
new OptionalOperatorTuningScheme(optimization, doOperatorTuning, tunigProps));
|Constructor and Description|
Instantiates a new optional operator tuning scheme.
|Modifier and Type||Method and Description|
Creates the defined scheme by adding the algorithms etc.
attachCustomNodeLevelRestriction, attachCustomRouteLevelRestriction, getAssessorJobRestrictions, getAssessorMultiRouteRestrictions, getAssessorNodeRestrictions, getAssessorRouteRestrictions, getAutoFilter, getCostAssessor, getCustomDefaultProperties, getOptimization, getOptimizationAlgorithms, initAssessor, postCreate, setAutoFilter, setCostAssessor, setCustomDefaultProperties, setOptimizationAlgorithms
public OptionalOperatorTuningScheme(IOptimization optimization, boolean doOperatorTunig, com.dna.jopt.revision.algorithm.poststepmanagment.operatortuner.OperatorProbabilityTunerPropertyItem props)
optimization- the optimization
doOperatorTunig- the do operator tuning
props- the props
public void create()
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