Inheritance diagram for syn::cosine_mixture2:

Public Member Functions
double	evaluate (inst::set x) override

Public Member Functions inherited from syn::synthetic
	synthetic (const std::string &n, u_int dims, double lb, double ub, double opt)

	synthetic (const std::string &n, u_int dims, double opt)

	~synthetic ()

sspace::sspace_t *	get_search_space ()

void	set_properties (std::vector< properties > p)

std::vector< properties >	get_properties ()

inst::set	get_opt_param ()

double	get_opt ()

void	update_opt (double opt)

u_int	get_dims ()

void	validate_param_set (inst::set x)

Public Member Functions inherited from optk::benchmark
	benchmark (const std::string &name)

std::string	get_name ()

Additional Inherited Members
Protected Member Functions inherited from syn::synthetic
void	set_opt_param (inst::set op)

Protected Attributes inherited from syn::synthetic
u_int	m_dims

double	m_lb

double	m_ub

double	m_opt

std::vector< properties >	m_properties

inst::set	opt_params

sspace::sspace_t	m_sspace

Protected Attributes inherited from optk::benchmark
std::string	m_name

Detailed Description

The cosine mixture function (2-dimensional) has the following formula:

\[ f(\mathbf{x}) = -0.1 \sum^n_{i=1}\cos(5\pi x_i) - \sum^n_{i=1}x_i^2 \]

subject to \(-1 \le x_i \le 1\) and \(n=2\). The global minimum is locatd at \(\mathbf{x}^* = (0, 0)\) and has value \(f(\mathbf{x}^*) = 0.2\).

Member Function Documentation

double syn::cosine_mixture2::evaluate ( inst::set x )

overridevirtual

Evaluate the benchmark (i.e. calculate the value of the objective fuinction) on the provided values.

Parameters

x	A vector of double-precision values to evaluate the benchmark at.

Todo:: Verify that a vector of doubles does not constrict the range of benchmark functions which may be evaluated (i.e. as opposed to categorical variables such as strings).

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