net.sf.cpsolver.studentsct.heuristics.selection
Class StandardSelection
java.lang.Object
net.sf.cpsolver.studentsct.heuristics.selection.StandardSelection
- All Implemented Interfaces:
- NeighbourSelection<Request,Enrollment>
public class StandardSelection
- extends Object
- implements NeighbourSelection<Request,Enrollment>
Use the provided variable and value selection for some time. The provided
variable and value selection is used for the number of iterations equal to
the number of all variables in the problem. If a complete solution is found,
the neighbour selection is stopped (it returns null).
Parameters:
Parameter |
Type |
Comment |
Neighbour.StandardIterations |
Long |
Number of iterations to perform. If -1, number of iterations is set to
the number of unassigned variables. |
- Version:
- StudentSct 1.2 (Student Sectioning)
Copyright (C) 2007 - 2010 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 java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
iNrIterations
protected long iNrIterations
StandardSelection
public StandardSelection(DataProperties properties,
VariableSelection<Request,Enrollment> variableSelection,
ValueSelection<Request,Enrollment> valueSelection)
- Constructor (variable and value selection are expected to be already
initialized).
- Parameters:
properties
- configurationvariableSelection
- variable selectionvalueSelection
- value selection
init
public void init(Solver<Request,Enrollment> solver)
- Initialization
- Specified by:
init
in interface NeighbourSelection<Request,Enrollment>
selectNeighbour
public Neighbour<Request,Enrollment> selectNeighbour(Solution<Request,Enrollment> solution)
- Employ the provided
VariableSelection
and ValueSelection
and return the selected value as SimpleNeighbour
. The selection
is stopped (null is returned) after the number of iterations equal to the
number of variables in the problem or when a complete solution is found.
- Specified by:
selectNeighbour
in interface NeighbourSelection<Request,Enrollment>
- Parameters:
solution
- given solution
- Returns:
- a neighbour assignment
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