net.sf.cpsolver.exam.criteria
Class InstructorDistanceBackToBackConflicts
java.lang.Object
net.sf.cpsolver.ifs.criteria.AbstractCriterion<Exam,ExamPlacement>
net.sf.cpsolver.exam.criteria.ExamCriterion
net.sf.cpsolver.exam.criteria.StudentDistanceBackToBackConflicts
net.sf.cpsolver.exam.criteria.InstructorDistanceBackToBackConflicts
- All Implemented Interfaces:
- Criterion<Exam,ExamPlacement>, InfoProvider<Exam>, ModelListener<Exam,ExamPlacement>
public class InstructorDistanceBackToBackConflicts
- extends StudentDistanceBackToBackConflicts
Number of back-to-back distance instructor conflicts. I.e., number of
cases when an exam is attended by an instructor that attends some other
exam at the previous ExamPeriod.prev()
or following
ExamPeriod.next()
period and the distance
ExamPlacement.getDistanceInMeters(ExamPlacement)
between these two exams
is greater than ExamModel.getBackToBackDistance()
. Distance
back-to-back conflicts are only considered between consecutive periods
that are of the same day.
Distance back-to-back instructor conflict weight can be set by problem
property Exams.InstructorDistanceBackToBackConflictWeight, or in the
input xml file, property instructorDistanceBackToBackConflictWeight.
- Version:
- ExamTT 1.2 (Examination Timetabling)
Copyright (C) 2008 - 2012 Tomas Muller
muller@unitime.org
http://muller.unitime.org
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 3 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not see
http://www.gnu.org/licenses/.
Methods inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion |
afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, getBest, getBounds, getInfo, getModel, getPerc, getPercRev, getValue, getValue, getWeight, getWeightedBest, getWeightedValue, getWeightedValue, getWeightedValue, inc, variableAdded, variableRemoved |
InstructorDistanceBackToBackConflicts
public InstructorDistanceBackToBackConflicts()
getWeightName
public String getWeightName()
- Description copied from class:
AbstractCriterion
- Defines weight name (to be used to get the criterion weight from the configuration).
- Overrides:
getWeightName
in class StudentDistanceBackToBackConflicts
getXmlWeightName
public String getXmlWeightName()
- Description copied from class:
ExamCriterion
- Name of the weight parameter in the parameters section of the examination XML file.
- Overrides:
getXmlWeightName
in class StudentDistanceBackToBackConflicts
getWeightDefault
public double getWeightDefault(DataProperties config)
- Description copied from class:
AbstractCriterion
- Defines default weight (when
AbstractCriterion.getWeightName()
parameter is not present in the criterion).
- Overrides:
getWeightDefault
in class StudentDistanceBackToBackConflicts
getValue
public double getValue(ExamPlacement value,
Set<ExamPlacement> conflicts)
- Description copied from interface:
Criterion
- Value of a proposed assignment (including hard conflicts)
- Specified by:
getValue
in interface Criterion<Exam,ExamPlacement>
- Overrides:
getValue
in class StudentDistanceBackToBackConflicts
getName
public String getName()
- Description copied from interface:
Criterion
- Criterion name
- Specified by:
getName
in interface Criterion<Exam,ExamPlacement>
- Overrides:
getName
in class StudentDistanceBackToBackConflicts
toString
public String toString()
- Overrides:
toString
in class StudentDistanceBackToBackConflicts
isPeriodCriterion
public boolean isPeriodCriterion()
- Description copied from class:
ExamCriterion
- True if this criterion is based on period assignment. Used by
ExamPlacement.getTimeCost()
.
- Overrides:
isPeriodCriterion
in class StudentDistanceBackToBackConflicts
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