random_search Class Reference

Inheritance diagram for random_search:

Public Member Functions
void	update_search_space (sspace::sspace_t *space) override
inst::set	generate_parameters (int param_id) override
void	receive_trial_results (int param_id, inst::set params, double value) override
Public Member Functions inherited from optk::optimiser
	optimiser (std::string name)
	~optimiser ()
virtual void	clear ()
std::string	get_name ()
void	accept (optimisers *o)

Private Member Functions
void	sample_ss (inst::node *parent)

Private Attributes
sspace::sspace_t *	m_space

Additional Inherited Members
Protected Member Functions inherited from optk::optimiser
void	add_to_trials (int param_id, inst::node *n)
Protected Attributes inherited from optk::optimiser
std::unordered_map< int, inst::set >	trials

Member Function Documentation

generate_parameters()

inst::set random_search::generate_parameters ( int  param_id )

overridevirtual

The random search optimiser will simply generate the relevant parameters by calling the sample method of parameters in the search space.

Parameters

param_id

A largely disregarded parameter; save for internal memory management.

Returns

A randomly generated set of valid parameters, with no guarantees of uniqueness.

Reimplemented from optk::optimiser.

receive_trial_results()

void random_search::receive_trial_results ( int  param_id, inst::set  params, double  value  )

overridevirtual

Allows the benchmark or program being optimised to communicate back the value of the cost function for a parameter set.

Parameters

param_id	This parameter id is used to identify the parameters used to generate the result.
parameters	For increased flexibility, the actual parameters used to generate the result are also copied back.
value	The actual value of the objective function.

Reimplemented from optk::optimiser.

sample_ss()

void random_search::sample_ss ( inst::node *  parent )

private

This function recursively traverses the search space, sampling a value at random from each of the parameters.

Parameters

parent

A pointer to the parent instance node to which to store the results.

update_search_space()

void random_search::update_search_space ( sspace::sspace_t *  space )

overridevirtual

This updates the search space defined by the optimiser.

Parameters

space

The new search space to use

Reimplemented from optk::optimiser.

Member Data Documentation

m_space

sspace::sspace_t* random_search::m_space

private

A copy of the problem search space

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

• includes/optimisers/random.hpp
• src/optimisers/random.cpp