A structure containing parameters of genetic algorithm. More...

#include <GAParameters.hpp>

Collaboration diagram for samchon::library::GAParameters:

Public Member Functions
	GAParameters ()

	GAParameters (size_t generation, size_t population, size_t tournament, double mutationRate)

void	setGeneration (size_t val)

void	setPopulation (size_t val)

void	setTournament (size_t val)

void	setMutationRate (double val)

auto	getGeneration () const -> size_t

auto	getPopulation () const -> size_t

auto	getTournament () const -> size_t

auto	getMutationRate () const -> double

virtual auto	TAG () const -> std::string
	A tag name when represented by XML. More...

virtual auto	toXML () const -> std::shared_ptr< library::XML > override
	Get an XML object represents the Entity. More...

Public Member Functions inherited from samchon::protocol::Entity
	Entity ()
	Default Constructor. More...

virtual void	construct (std::shared_ptr< library::XML >)=0
	Construct data of the Entity from an XML object. More...

virtual auto	key () const -> std::string
	Get a key that can identify the Entity uniquely. More...

Protected Attributes
size_t	generation
	A number of generation of evolution. More...

size_t	population
	A number of population in a generation. More...

size_t	tournament
	A number of tournament in a selection. More...

double	mutationRate
	Rate of mutate ocurrence. More...

Detailed Description

A structure containing parameters of genetic algorithm.

The number and rate parameters in the structure affects success of evolution of genetic algorithm.

Example Sources

example::tsp

See also: library::GeneticAlgorithm; library::GAPopulation; example::tsp

Author: Jeongho Nam http://samchon.org

Definition at line 25 of file GAParameters.hpp.

Constructor & Destructor Documentation

samchon::library::GAParameters::GAParameters ( )

inline

Default Constructor.

Definition at line 70 of file GAParameters.hpp.

samchon::library::GAParameters::GAParameters	(	size_t	generation,
		size_t	population,
		size_t	tournament,
		double	mutationRate
	)

inline

Construct from members.

Definition at line 78 of file GAParameters.hpp.

References generation, mutationRate, population, and tournament.

Member Function Documentation

void samchon::library::GAParameters::setGeneration ( size_t val )

inline

Set generation.

Definition at line 101 of file GAParameters.hpp.

void samchon::library::GAParameters::setPopulation ( size_t val )

inline

Set population.

Definition at line 109 of file GAParameters.hpp.

void samchon::library::GAParameters::setTournament ( size_t val )

inline

Set tournament.

Definition at line 117 of file GAParameters.hpp.

void samchon::library::GAParameters::setMutationRate ( double val )

inline

Set mutation rate.

Definition at line 125 of file GAParameters.hpp.

auto samchon::library::GAParameters::getGeneration ( ) const -> size_t

inline

Get generation.

Definition at line 136 of file GAParameters.hpp.

References generation.

auto samchon::library::GAParameters::getPopulation ( ) const -> size_t

inline

Get population.

Definition at line 144 of file GAParameters.hpp.

References population.

auto samchon::library::GAParameters::getTournament ( ) const -> size_t

inline

Get tournament.

Definition at line 152 of file GAParameters.hpp.

References tournament.

auto samchon::library::GAParameters::getMutationRate ( ) const -> double

inline

Get mutation rate.

Definition at line 160 of file GAParameters.hpp.

References mutationRate.

virtual auto samchon::library::GAParameters::TAG ( ) const -> std::string

inlinevirtual

A tag name when represented by XML.

Returns: A tag name

Implements samchon::protocol::Entity.

Definition at line 168 of file GAParameters.hpp.

virtual auto samchon::library::GAParameters::toXML ( ) const -> std::shared_ptr<library::XML>

inlineoverridevirtual

Get an XML object represents the Entity.

Returns an XML object that can represents the Entity containing member variables into properties.

A member variable (not object, but atomic value like number, string or date) is categorized as a property within the framework of entity side. Thus, when overriding a toXML() method and archiving member variables to an XML object to return, puts each variable to be a property belongs to only an XML object.

Don't archive the member variable of atomic value to XML::value causing enormouse creation of XML objects to number of member variables. An Entity must be represented by only an XML instance (tag).

Standard Usage	Non-standard usage abusing value
<memberList> <member id='jhnam88' name='Jeongho+Nam' birthdate='1988-03-11' /> <member id='master' name='Administartor' birthdate='2011-07-28' /> </memberList>	<member> <id>jhnam88</id> <name>Jeongho+Nam</name> <birthdate>1988-03-11</birthdate> </member>

Returns: An XML object representing the Entity.

Reimplemented from samchon::protocol::Entity.

Definition at line 172 of file GAParameters.hpp.

References samchon::protocol::Entity::toXML().

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Member Data Documentation

size_t samchon::library::GAParameters::generation

protected

A number of generation of evolution.

Definition at line 35 of file GAParameters.hpp.

Referenced by GAParameters(), and getGeneration().

size_t samchon::library::GAParameters::population

protected

A number of population in a generation.

Definition at line 40 of file GAParameters.hpp.

Referenced by GAParameters(), and getPopulation().

size_t samchon::library::GAParameters::tournament

protected

A number of tournament in a selection.

Definition at line 45 of file GAParameters.hpp.

Referenced by GAParameters(), and getTournament().

double samchon::library::GAParameters::mutationRate

protected

Rate of mutate ocurrence.

A mutation rate determines the percentage of occurence of mutation in a sequence list.

Value from 0.0 to 1.0

Note

When mutationRate is too high, it is hard to ancitipate studying on genetic algorithm.
When mutationRate is too low and initial set of genes(GeneArray) is far away from optimal, the evolution tends to wandering outside of he optimal.

Definition at line 59 of file GAParameters.hpp.

Referenced by GAParameters(), and getMutationRate().

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

D:/OneDrive/Project/Samchon/framework/cpp/samchon/library/GAParameters.hpp

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation