SolutionBuilder Class Reference

Responsible for creating random solutions and neighborhood samples. More...

#include <SolutionBuilder.h>

Public Member Functions
	SolutionBuilder (int dimensions, int lower, int upper, int seed)
	Constructs a SolutionBuilder with specific space constraints.
std::vector< double >	getRand ()
	Generates a single random solution vector within bounds.
std::vector< std::vector< double > >	getNeighbors (const std::vector< double > &center, int numNeighbors, double maxDelta)
	Generates a set of neighboring solutions around a central point.
double	getDimensions ()
	Returns the dimensionality of the solution space.
std::vector< int >	getSubset (int populationSize, int subsetSize, int source)
	Generates a subset of unique solutions from given population.
std::vector< double >	getDifference (const std::vector< double > vec1, const std::vector< double > vec2)
double	checkBounds (double value)
	Ensures a coordinate stays within the defined [lower, upper] bounds.
double	randNum ()
int	randNum (int x, int y)
std::vector< double >	getInitialVelocity ()
double	clampVelocity (double v)

Detailed Description

Responsible for creating random solutions and neighborhood samples.

This class encapsulates the logic for generating initial random positions within the search space and perturbing existing solutions to find neighbors. It utilizes the Mersenne Twister algorithm for high-quality random number generation.

Constructor & Destructor Documentation

SolutionBuilder()

SolutionBuilder::SolutionBuilder ( int dimensions, int lower, int upper, int seed )

inline

Constructs a SolutionBuilder with specific space constraints.

Parameters

dimensions	Number of variables in the solution vector.
lower	Minimum value for any given dimension.
upper	Maximum value for any given dimension.
seed	Value used to initialize the Mersenne Twister generator.

Member Function Documentation

checkBounds()

double SolutionBuilder::checkBounds

(

double

value

)

Ensures a coordinate stays within the defined [lower, upper] bounds.

Parameters

value

The value to check.

Returns

The clamped value.

getNeighbors()

std::vector< std::vector< double > > SolutionBuilder::getNeighbors	(	const std::vector< double > &	center,
		int	numNeighbors,
		double	maxDelta )

Generates a set of neighboring solutions around a central point.

Used primarily by Local Search algorithms to explore the immediate vicinity of the current best candidate.

Parameters

center	The original solution vector to perturb.
numNeighbors	Number of neighbor vectors to generate.
maxDelta	The maximum step size allowed for perturbation in any dimension.

Returns

A collection of neighboring solution vectors.

getRand()

std::vector< double > SolutionBuilder::getRand

(

)

Generates a single random solution vector within bounds.

Returns

A vector of size dimensions with values in range [lower, upper].

getSubset()

std::vector< int > SolutionBuilder::getSubset	(	int	populationSize,
		int	subsetSize,
		int	source )

Generates a subset of unique solutions from given population.

Parameters

population	Size population from which subset is selected.
subsetSize	Number of solutions to include in returned subset.

Returns

A collection of unique indices from initial population.

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The documentation for this class was generated from the following files:

• src/opti_py/cpp/include/opti_py/SolutionBuilder.h
• src/opti_py/cpp/src/SolutionBuilder.cpp