org.cpsolver.studentsct.online.selection

Class MultiCriteriaBranchAndBoundSuggestions

java.lang.Object

org.cpsolver.studentsct.online.selection.SuggestionsBranchAndBound

org.cpsolver.studentsct.online.selection.MultiCriteriaBranchAndBoundSuggestions

public class MultiCriteriaBranchAndBoundSuggestions
extends SuggestionsBranchAndBound

Computation of suggestions using a limited depth branch and bound, using a multi-criteria selection criterion. Everything is the same, but MultiCriteriaBranchAndBoundSelection.SelectionCriterion.compare(Assignment, Enrollment[], Enrollment[]) is used to compare two suggestions.

Version:

StudentSct 1.3 (Student Sectioning)
Copyright (C) 2014 Tomáš Müller
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.

Author:

Tomáš Müller

See Also:

MultiCriteriaBranchAndBoundSelection.SelectionCriterion

Nested Class Summary

Nested classes/interfaces inherited from class org.cpsolver.studentsct.online.selection.SuggestionsBranchAndBound

SuggestionsBranchAndBound.EnrollmentSectionComparator, SuggestionsBranchAndBound.SectionAssignmentComparator, SuggestionsBranchAndBound.Suggestion, SuggestionsBranchAndBound.SuggestionFilter

Field Summary

Fields inherited from class org.cpsolver.studentsct.online.selection.SuggestionsBranchAndBound

iComparator, iMatched, iMaxSectionsWithPenalty

Constructor Summary

Constructors

Constructor and Description

MultiCriteriaBranchAndBoundSuggestions(DataProperties properties, Student student, Assignment<Request,Enrollment> assignment, Hashtable<CourseRequest,Set<Section>> requiredSections, Set<FreeTimeRequest> requiredFreeTimes, Hashtable<CourseRequest,Set<Section>> preferredSections, Request selectedRequest, Section selectedSection, SuggestionsBranchAndBound.SuggestionFilter filter, double maxSectionsWithPenalty, boolean priorityWeighting) Constructor

Method Summary

Modifier and Type	Method and Description
protected int	compare(Assignment<Request,Enrollment> assignment, SuggestionsBranchAndBound.Suggestion s1, SuggestionsBranchAndBound.Suggestion s2) Compare two suggestions

Methods inherited from class org.cpsolver.studentsct.online.selection.SuggestionsBranchAndBound

backtrack, canContinue, canContinueEvaluation, canLeaveUnassigned, checkBound, computeSuggestions, getNrMatched, getNrSolutionsSeen, getTime, isAllowed, isTimeoutReached, values

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MultiCriteriaBranchAndBoundSuggestions

public MultiCriteriaBranchAndBoundSuggestions(DataProperties properties,
                                              Student student,
                                              Assignment<Request,Enrollment> assignment,
                                              Hashtable<CourseRequest,Set<Section>> requiredSections,
                                              Set<FreeTimeRequest> requiredFreeTimes,
                                              Hashtable<CourseRequest,Set<Section>> preferredSections,
                                              Request selectedRequest,
                                              Section selectedSection,
                                              SuggestionsBranchAndBound.SuggestionFilter filter,
                                              double maxSectionsWithPenalty,
                                              boolean priorityWeighting)

Constructor

Parameters:

properties - configuration

student - given student

assignment - current assignment

requiredSections - required sections

requiredFreeTimes - required free times (free time requests that must be assigned)

preferredSections - preferred sections

selectedRequest - selected request

selectedSection - selected section

filter - section filter

maxSectionsWithPenalty - maximal number of sections that have a positive over-expectation penalty OverExpectedCriterion.getOverExpected(Assignment, Section, Request)

Method Detail

compare

protected int compare(Assignment<Request,Enrollment> assignment,
                      SuggestionsBranchAndBound.Suggestion s1,
                      SuggestionsBranchAndBound.Suggestion s2)

Description copied from class: SuggestionsBranchAndBound

Compare two suggestions

Overrides:

compare in class SuggestionsBranchAndBound

Parameters:

assignment - current assignment

s1 - first suggestion

s2 - second suggestion

Returns:

true if s1 is better than s2