Package org.tweetyproject.math.opt.solver

Class ApacheCommonsNonLinearConjugateGradientOptimizer

java.lang.Object

org.tweetyproject.math.opt.solver.Solver

org.tweetyproject.math.opt.solver.ApacheCommonsNonLinearConjugateGradientOptimizer

public class ApacheCommonsNonLinearConjugateGradientOptimizer
extends Solver

This class is a wrapper for the Apache Commons Math3 Non-Linear Conjugate Gradient Optimizer (https://commons.apache.org/proper/commons-math/).

NOTE: This solver does not allow any constraints, box constraints of variables are ignored!

Author:

Matthias Thimm

Constructor Summary

Constructors

Constructor	Description
ApacheCommonsNonLinearConjugateGradientOptimizer(int maxEval, double precision)	Creates a new solver.

Method Summary

Modifier and Type	Method	Description
static boolean	isInstalled()
Map<Variable,Term>	solve(GeneralConstraintSatisfactionProblem problem)	Computes a solution to the given constraint satisfaction or optimization problem, i.e.

Methods inherited from class org.tweetyproject.math.opt.solver.Solver

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

Methods inherited from class java.lang.Object

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

Constructor Details

ApacheCommonsNonLinearConjugateGradientOptimizer

public ApacheCommonsNonLinearConjugateGradientOptimizer(int maxEval,
 double precision)

Creates a new solver.

Parameters:

maxEval - the maximum number of evaluations.

precision - the precision.

Method Details

solve

public Map<Variable,Term> solve(GeneralConstraintSatisfactionProblem 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.

isInstalled

public static boolean isInstalled()
                           throws UnsupportedOperationException

Returns:

if solver is installed

Throws:

UnsupportedOperationException - UnsupportedOperationException