Goldstein-Price objective function. More...

#include <GoldsteinPrice.hpp>

Inheritance diagram for sgpp::optimization::test_problems::GoldsteinPriceObjective:

Public Member Functions
void	clone (std::unique_ptr< ScalarFunction > &clone) const override

double	evalUndisplaced (const base::DataVector &x) override

	GoldsteinPriceObjective ()
	Constructor. More...

	~GoldsteinPriceObjective () override
	Destructor. More...

Public Member Functions inherited from sgpp::optimization::test_problems::TestScalarFunction
double	eval (const base::DataVector &x) override
	Evaluate displaced function. More...

const base::DataVector &	getDisplacement () const

void	setDisplacement (const base::DataVector &displacement)

	TestScalarFunction (size_t d)
	Constructor. More...

	~TestScalarFunction () override
	Destructor. More...

Public Member Functions inherited from sgpp::optimization::ScalarFunction
size_t	getNumberOfParameters () const

	ScalarFunction (size_t d)
	Constructor. More...

virtual	~ScalarFunction ()
	Destructor. More...

Additional Inherited Members
Protected Attributes inherited from sgpp::optimization::test_problems::TestScalarFunction
base::DataVector	displacement
	displacement vector More...

base::DataVector	xTmp
	temporary vector for displacing More...

Protected Attributes inherited from sgpp::optimization::ScalarFunction
size_t	d
	dimension of the domain More...

Detailed Description

Goldstein-Price objective function.

Definition:

\[\bar{f}(\bar{\vec{x}}) := (1 + (\bar{x}_1+\bar{x}_2+1)^2 (19 - 14\bar{x}_1 + 3\bar{x}_1^2 - 14\bar{x}_2 + 6\bar{x}_1 \bar{x}_2 + 3\bar{x}_2^2)) \cdot (30 + (2\bar{x}_1 - 3\bar{x}_2)^2 (18 - 32\bar{x}_1 + 12\bar{x}_1^2 + 48\bar{x}_2 - 36\bar{x}_1 \bar{x}_2 + 27\bar{x}_2^2))\]

Constructor & Destructor Documentation

◆ GoldsteinPriceObjective()

sgpp::optimization::test_problems::GoldsteinPriceObjective::GoldsteinPriceObjective ( )

Constructor.

Referenced by clone().

◆ ~GoldsteinPriceObjective()

sgpp::optimization::test_problems::GoldsteinPriceObjective::~GoldsteinPriceObjective ( )

override

Destructor.

Member Function Documentation

◆ clone()

void sgpp::optimization::test_problems::GoldsteinPriceObjective::clone ( std::unique_ptr< ScalarFunction > & clone ) const

overridevirtual

Parameters

[out] clone pointer to cloned object

Implements sgpp::optimization::ScalarFunction.

References GoldsteinPriceObjective().

◆ evalUndisplaced()

double sgpp::optimization::test_problems::GoldsteinPriceObjective::evalUndisplaced ( const base::DataVector & x )

overridevirtual

Parameters

x	point \(\vec{x} \in [0, 1]^d\)

Returns: \(f(\vec{x})\)

Implements sgpp::optimization::test_problems::TestScalarFunction.

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

optimization/src/sgpp/optimization/test_problems/unconstrained/GoldsteinPrice.hpp
optimization/src/sgpp/optimization/test_problems/unconstrained/GoldsteinPrice.cpp

Public Member Functions