Class to represent the Novelty Search Algorithm This specialization is exclusively for EIG because it uses the vector of features of each generated instance to compute novelty. More...

#include <NSFeatures.h>

Inheritance diagram for NSFeatures< S >:

Public Member Functions
	NSFeatures (unique_ptr< Distance< float >> dist, const float &threshold=2000, const float &finalThresh=2000, const int &k=15, bool warmUp=false)
	Construct a new NSFeatures<S>::NSFeatures object If warmUp is set, the NS archive is initialised with random points from the KP space. More...

virtual json	to_json () override
	Generates a json object with the relevant information of the class. More...

Public Member Functions inherited from NoveltySearch< S >
	NoveltySearch (unique_ptr< Distance< float >> dist, const float &threshold=2000, const float &finalThresh=0.0001, const int &k=15)
	Creates a new Novelty Search instance. More...

Front< S >	getResults () override
	Returns the results obtained by the Novelty Search in a Front object. More...

vector< S >	run (vector< S > &population, const Problem< S > *problem) override
	Novelty Search Algorithm It looks for novelty using the genotypes of the individuals in the population. Computes the sparseness of each individual in the noveltyArchive and population. More...

virtual void	cmpFinals (vector< S > &population, const Problem< S > *problem=nullptr)
	Compares the individuals in the population against the neighbors inside the archive of final Ss. If the score is good enough the individual will be included inside the archive of final solutions. More...

virtual void	insertIntoArchive (const S &solution)
	Method to insert a new individual into the noveltyArchive of novelty solutions. More...

const vector< S > &	getArchive () const

float	getThreshold () const

float	getK () const

float	getFinalThresh () const

Public Member Functions inherited from Search< S >
	Search ()=default
	Constructs a default Search.

Protected Member Functions
virtual vector< Descriptor >	beforeRun (const vector< S > &population) override
	Performs computational work necessary for running the NS This method creates a combined population using the individuals from the NS archive and the population. The resulting vector contains the features of each individual. More...

virtual vector< Descriptor >	beforeCmpFinals (const vector< S > &population) override

virtual void	insertFinal (const S &solution) override
	Method to insert a new individual into the noveltyArchive of novelty Ss. More...

Protected Attributes
bool	warmed

Protected Attributes inherited from NoveltySearch< S >
unique_ptr< Distance< float > >	distance

vector< S >	noveltyArchive

vector< S >	finalSs

vector< Descriptor >	finalSsDesc

float	threshold

float	finalSThreshold

int	k

Detailed Description

template<typename S>
class NSFeatures< S >

Class to represent the Novelty Search Algorithm This specialization is exclusively for EIG because it uses the vector of features of each generated instance to compute novelty.

Template Parameters

S	--> AbstractInstance type

Constructor & Destructor Documentation

◆ NSFeatures()

template<typename S >

NSFeatures< S >::NSFeatures	(	unique_ptr< Distance< float >>	dist,
		const float &	threshold = `2000`,
		const float &	finalThresh = `2000`,
		const int &	k = `15`,
		bool	warmUp = `false`
	)

explicit

Construct a new NSFeatures<S>::NSFeatures object If warmUp is set, the NS archive is initialised with random points from the KP space.

Template Parameters

S

Parameters

dist
iterations
threshold
k
warmUp

Member Function Documentation

◆ beforeRun()

template<typename S >

vector< Descriptor > NSFeatures< S >::beforeRun ( const vector< S > & population )

overrideprotectedvirtual

Performs computational work necessary for running the NS This method creates a combined population using the individuals from the NS archive and the population. The resulting vector contains the features of each individual.

Template Parameters

S

Parameters

population

Reimplemented from NoveltySearch< S >.

◆ insertFinal()

template<typename S >

void NSFeatures< S >::insertFinal ( const S & solution )

overrideprotectedvirtual

Method to insert a new individual into the noveltyArchive of novelty Ss.

Template Parameters

Problem
S

Parameters

S

Reimplemented from NoveltySearch< S >.

◆ to_json()

template<typename S >

json NSFeatures< S >::to_json

overridevirtual

Generates a json object with the relevant information of the class.

Template Parameters

S

Returns: json

Reimplemented from NoveltySearch< S >.

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

include/dignea/searches/NSFeatures.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

template<typename S> class NSFeatures< S >

Constructor & Destructor Documentation

◆ NSFeatures()

Member Function Documentation

◆ beforeRun()

◆ insertFinal()

◆ to_json()

template<typename S>
class NSFeatures< S >