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java.lang.Objectnet.sf.cpsolver.ifs.criteria.AbstractCriterion<Lecture,Placement>
net.sf.cpsolver.coursett.criteria.TimetablingCriterion
net.sf.cpsolver.coursett.criteria.Perturbations
public class Perturbations
Perturbations. This criterion counts differences (perturbations) between initial and the current
solution. It is based on PerturbationsCounter
.
Nested Class Summary |
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Nested classes/interfaces inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion |
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AbstractCriterion.ValueUpdateType |
Field Summary |
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Fields inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion |
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iBest, iDebug, iValue, iValueUpdateType, iWeight, sDoubleFormat, sPercentFormat |
Constructor Summary | |
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Perturbations()
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Method Summary | |
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double[] |
getBounds()
Bounds (minimum and maximum) estimate for the value |
double[] |
getBounds(Collection<Lecture> variables)
Value bounds (minimum and maximum) of the criterion on a part of the problem |
PerturbationsCounter<Lecture,Placement> |
getPerturbationsCounter()
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String |
getPlacementSelectionWeightName()
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double |
getValue()
Current value of the criterion (optimization objective) |
double |
getValue(Collection<Lecture> variables)
Value of a part of the problem (given by the collection of variables) |
double |
getValue(Placement value,
Set<Placement> conflicts)
Value of a proposed assignment (including hard conflicts) |
double |
getWeightDefault(DataProperties config)
Defines default weight (when AbstractCriterion.getWeightName() parameter is not present in the criterion). |
boolean |
init(Solver<Lecture,Placement> solver)
Notification that the model was initialized by the solver. |
Methods inherited from class net.sf.cpsolver.coursett.criteria.TimetablingCriterion |
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getPlacementSelectionWeight, getPlacementSelectionWeightDefault |
Methods inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion |
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afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, getBest, getInfo, getInfo, getModel, getName, getPerc, getPercRev, getWeight, getWeightedBest, getWeightedValue, getWeightedValue, getWeightedValue, getWeightName, inc, variableAdded, variableRemoved |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Perturbations()
Method Detail |
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public String getPlacementSelectionWeightName()
getPlacementSelectionWeightName
in class TimetablingCriterion
public boolean init(Solver<Lecture,Placement> solver)
ModelListener
init
in interface ModelListener<Lecture,Placement>
init
in class TimetablingCriterion
solver
- IFS solverpublic double getWeightDefault(DataProperties config)
AbstractCriterion
AbstractCriterion.getWeightName()
parameter is not present in the criterion).
getWeightDefault
in class AbstractCriterion<Lecture,Placement>
public PerturbationsCounter<Lecture,Placement> getPerturbationsCounter()
public double getValue(Placement value, Set<Placement> conflicts)
Criterion
public double getValue()
Criterion
getValue
in interface Criterion<Lecture,Placement>
getValue
in class AbstractCriterion<Lecture,Placement>
public double getValue(Collection<Lecture> variables)
Criterion
getValue
in interface Criterion<Lecture,Placement>
getValue
in class AbstractCriterion<Lecture,Placement>
public double[] getBounds()
Criterion
getBounds
in interface Criterion<Lecture,Placement>
getBounds
in class AbstractCriterion<Lecture,Placement>
public double[] getBounds(Collection<Lecture> variables)
Criterion
getBounds
in interface Criterion<Lecture,Placement>
getBounds
in class AbstractCriterion<Lecture,Placement>
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