Class ProductionOptimizer.ParetoPoint

java.lang.Object

neqsim.process.util.optimizer.ProductionOptimizer.ParetoPoint

Enclosing class:

ProductionOptimizer

public static final class ProductionOptimizer.ParetoPoint
extends Object

A single point on the Pareto front representing a non-dominated solution.

Version:

1.0

Author:

NeqSim Development Team

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<String,Double>	decisionVariables
private final boolean	feasible
private final ProductionOptimizer.OptimizationResult	fullResult
private final Map<String,Double>	objectiveValues
private final double[]	weights

Constructor Summary

Constructors

Constructor	Description
ParetoPoint(Map<String,Double> decisionVariables, Map<String,Double> objectiveValues, double[] weights, boolean feasible, ProductionOptimizer.OptimizationResult fullResult)	Constructs a Pareto point.

Method Summary

Modifier and Type	Method	Description
boolean	dominates(ProductionOptimizer.ParetoPoint other, Map<String, ProductionOptimizer.ObjectiveType> objectiveTypes)	Checks if this point dominates another point (all objectives at least as good, one strictly better).
Map<String,Double>	getDecisionVariables()
ProductionOptimizer.OptimizationResult	getFullResult()
Map<String,Double>	getObjectiveValues()
double[]	getWeights()
boolean	isFeasible()

Methods inherited from class Object

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

Field Details

decisionVariables

private final Map<String,Double> decisionVariables

objectiveValues

private final Map<String,Double> objectiveValues

weights

private final double[] weights

feasible

private final boolean feasible

fullResult

private final ProductionOptimizer.OptimizationResult fullResult

Constructor Details

ParetoPoint

public ParetoPoint(Map<String,Double> decisionVariables,
 Map<String,Double> objectiveValues,
 double[] weights,
 boolean feasible,
 ProductionOptimizer.OptimizationResult fullResult)

Constructs a Pareto point.

Parameters:

decisionVariables - the decision variable values at this point

objectiveValues - the objective function values at this point

weights - the weight combination used to find this point

feasible - whether this point satisfies all constraints

fullResult - the full optimization result for this point

Method Details

getDecisionVariables

public Map<String,Double> getDecisionVariables()

getObjectiveValues

public Map<String,Double> getObjectiveValues()

getWeights

public double[] getWeights()

isFeasible

public boolean isFeasible()

getFullResult

public ProductionOptimizer.OptimizationResult getFullResult()

dominates

public boolean dominates(ProductionOptimizer.ParetoPoint other,
 Map<String, ProductionOptimizer.ObjectiveType> objectiveTypes)

Checks if this point dominates another point (all objectives at least as good, one strictly better).

Parameters:

other - the other point to compare

objectiveTypes - map of objective names to their types (MAXIMIZE/MINIMIZE)

Returns:

true if this point dominates the other