org.cpsolver.studentsct.online.selection

Class ResectioningWeights

java.lang.Object

org.cpsolver.studentsct.online.selection.StudentSchedulingAssistantWeights

org.cpsolver.studentsct.online.selection.ResectioningWeights

All Implemented Interfaces:

SolutionComparator<Request,Enrollment>, StudentWeights

public class ResectioningWeights
extends StudentSchedulingAssistantWeights

Re-scheduling variant of StudentWeights model. It is based on the StudentSchedulingAssistantWeights. This model is used when a single course of a student is rescheduled. Following criteria are included:

• StudentWeights.SameChoiceFactor .. penalization of selecting a different choice (see Choice)
• StudentWeights.SameRoomsFactor .. penalization of selecting different room
• StudentWeights.SameTimeFactor .. penalization of selecting different time
• StudentWeights.SameNameFactor .. penalization of selecting different section (section name / external id does not match)

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

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ResectioningWeights.LastSectionProvider Compare the old assignment with the current one

Nested classes/interfaces inherited from interface org.cpsolver.studentsct.weights.StudentWeights

StudentWeights.Implementation

Constructor Summary

Constructors

Constructor and Description
ResectioningWeights(DataProperties properties)

Method Summary

Modifier and Type	Method and Description
double	getWeight(Assignment<Request,Enrollment> assignment, Enrollment enrollment) Return base weight of the given enrollment
static boolean	isSame(Enrollment e1, Enrollment e2)
static boolean	sameChoice(Section section, Choice choice)
static boolean	sameName(Long courseId, Section s1, Section s2)
static boolean	sameRooms(Section s, List<RoomLocation> rooms)
static boolean	sameTime(Section s, TimeLocation t)
void	setLastSectionProvider(ResectioningWeights.LastSectionProvider lastSectionProvider)

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

clearBestCache, getBaseWeight, getBound, getDistanceConflictWeight, getStudentQualityConflictWeight, getTimeOverlapConflictWeight, getWeight, getWeight, isBetterThanBestSolution, isFreeTimeAllowOverlaps, round

Methods inherited from class java.lang.Object

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

Constructor Detail

ResectioningWeights

public ResectioningWeights(DataProperties properties)

Method Detail

setLastSectionProvider

public void setLastSectionProvider(ResectioningWeights.LastSectionProvider lastSectionProvider)

getWeight

public double getWeight(Assignment<Request,Enrollment> assignment,
                        Enrollment enrollment)

Description copied from interface: StudentWeights

Return base weight of the given enrollment

Specified by:

getWeight in interface StudentWeights

Overrides:

getWeight in class StudentSchedulingAssistantWeights

Parameters:

assignment - current assignment

enrollment - given enrollment

Returns:

weight (higher weight means better value)

isSame

public static boolean isSame(Enrollment e1,
                             Enrollment e2)

sameRooms

public static boolean sameRooms(Section s,
                                List<RoomLocation> rooms)

sameTime

public static boolean sameTime(Section s,
                               TimeLocation t)

sameName

public static boolean sameName(Long courseId,
                               Section s1,
                               Section s2)

sameChoice

public static boolean sameChoice(Section section,
                                 Choice choice)