net.sf.tweety.math.opt.solver

Class OpenOptSolver

java.lang.Object

net.sf.tweety.math.opt.Solver

net.sf.tweety.math.opt.solver.OpenOptSolver

Direct Known Subclasses:

OpenOptWebSolver

public class OpenOptSolver
extends Solver

This class implements a wrapper for the OpenOpt optimization library.

Author:

Matthias Thimm

Field Summary

Fields

Modifier and Type	Field and Description
double	contol
double	ftol
double	gtol
boolean	ignoreNotFeasibleError
double	maxFunEvals
double	maxIter
String	solver
double	xtol

Constructor Summary

Constructors

Constructor and Description
OpenOptSolver() Creates a new solver.
OpenOptSolver(Map<Variable,Term> startingPoint) Creates a new solver for the given problem.

Method Summary

Modifier and Type	Method and Description
String	getOpenOptCode(OptimizationProblem problem) Builds the OpenOpt code for the given problem which can be interpreted by a python.
static boolean	isInstalled()
protected Map<Variable,Term>	parseOutput(String output) This method parses the output data of an OpenOpt run
Map<Variable,Term>	solve(ConstraintSatisfactionProblem problem) Computes a solution to the given constraint satisfaction or optimization problem, i.e.

Methods inherited from class net.sf.tweety.math.opt.Solver

getDefaultGeneralSolver, getDefaultIntegerLinearSolver, getDefaultLinearSolver, hasDefaultGeneralSolver, hasDefaultIntegerLinearSolver, hasDefaultLinearSolver, setDefaultGeneralSolver, setDefaultIntegerLinearSolver, setDefaultLinearSolver

Methods inherited from class java.lang.Object

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

Field Detail

contol

public double contol

ftol

public double ftol

gtol

public double gtol

xtol

public double xtol

maxIter

public double maxIter

maxFunEvals

public double maxFunEvals

solver

public String solver

ignoreNotFeasibleError

public boolean ignoreNotFeasibleError

Constructor Detail

OpenOptSolver

public OpenOptSolver()

Creates a new solver.

OpenOptSolver

public OpenOptSolver(Map<Variable,Term> startingPoint)

Creates a new solver for the given problem.

Parameters:

problem - a csp.

startingPoint - a starting point.

Method Detail

solve

public Map<Variable,Term> solve(ConstraintSatisfactionProblem problem)
                         throws GeneralMathException

Description copied from class: Solver

Computes a solution to the given constraint satisfaction or optimization problem, i.e. a mapping from variables of the problem to terms.

Specified by:

solve in class Solver

Parameters:

problem - the actual problem

Returns:

a mapping from variables of the problem to terms.

Throws:

GeneralMathException - if something went wrong.

getOpenOptCode

public String getOpenOptCode(OptimizationProblem problem)

Builds the OpenOpt code for the given problem which can be interpreted by a python.

Returns:

the python code for the given problem

parseOutput

protected Map<Variable,Term> parseOutput(String output)

This method parses the output data of an OpenOpt run

Parameters:

output - a string.

Returns:

a map from variable to terms

isInstalled

public static boolean isInstalled()
                           throws UnsupportedOperationException

Throws:

UnsupportedOperationException