OnlineSelection (Constraint Solver API Documentation -- CPSolver v1.2 build 156)

public class OnlineSelection
extends BranchBoundSelection

Section given student using branch & bound algorithm with no unassignments allowed.

Parameters:

Parameter	Type	Comment
Sectioning.UseStudentPreferencePenalties	`Boolean`	If true, `StudentPreferencePenalties` are used
Sectioning.Distribution	`Integer`	When student preference penalties are used, defines which distribution is to be used (one of `StudentPreferencePenalties.sDistTypePreference`, `StudentPreferencePenalties.sDistTypePreferenceQuadratic`, `StudentPreferencePenalties.sDistTypePreferenceReverse`, `StudentPreferencePenalties.sDistTypeUniform`)
Sectioning.UseOnlinePenalties	`Boolean`	If true, online sectioning penalties computed based on held/expected space are used.
Sectioning.Epsilon	`Double`	When both online penalties and student preference penalties are used: a solution based on online penalties is computed first, this solution (and the given epsilon) is then used to setup bounds on online penalties for the solution that minimizes student preference penalties. Limit on online penalty is computed as (1+Section.Epsilon) `BranchBoundSelection.Selection.getPenalty()`, i.e., only sections with penalty equal or below this limit can be used -- among these the solution that minimizes student preference penalties is computed.

Version:: StudentSct 1.2 (Student Sectioning)
Copyright (C) 2007 - 2010 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/.

Nested Classes
Modifier and Type	Class and Description
`class`	`OnlineSelection.EpsilonSelection` Branch & bound selection for a student

Constructors
Constructor and Description
`OnlineSelection(DataProperties properties)` Constructor

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`BranchBoundSelection.Selection`	`getSelection(Student student)` Branch & bound selection for a student
`void`	`init(Solver<Request,Enrollment> solver)` Criterion initialization
`boolean`	`isUsePenalties()` Use online penalties
`boolean`	`isUseStudentPrefPenalties()` Use student preference penalties
`void`	`updateSpace(Student student)` Update online sectioning info after the given student is sectioned

Methods inherited from class net.sf.cpsolver.studentsct.heuristics.selection.BranchBoundSelection
init, selectNeighbour, setModel

Class OnlineSelection