ai/genetic-bit-string-evolver
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Elitism and CopyChromosomes()

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This commit is contained in:
Mike
2018-04-14 08:33:25 -07:00
parent 7db4140bdd
commit b2f164f464
3 changed files with 229 additions and 15 deletions
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38
Population.h
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@ -55,6 +55,13 @@ namespace BitEvolver
//
void SetMutationRate(double r);
double GetMutationRate();
//
void SetElitismType(Enums::ElitismType t);
Enums::ElitismType GetElitismType();
void SetElitismRate(double r);
double GetElitismRate();
void SetElitismCount(int c);
int GetElitismCount();
//
void EvaluateFitness(std::function<double(std::shared_ptr<Chromosome>)> evaluation_callback);
@ -69,8 +76,11 @@ namespace BitEvolver
void PrintPopulation(std::vector<std::shared_ptr<class Chromosome>> _chromosomes);
// Constants
const static int DEFAULT_POPULATION_SIZE = 100;
const static int DEFAULT_MUTATION_RATE = 0.01;
const static int DEFAULT_POPULATION_SIZE = 100;
const static Enums::ElitismType DEFAULT_ELITISM_TYPE = Enums::ElitismType::Rate;
constexpr static double DEFAULT_ELITISM_RATE = 0.01;
const static int DEFAULT_ELITISM_COUNT = 1;
constexpr static double DEFAULT_MUTATION_RATE = 0.01;
//
const static Enums::CrossoverType DEFAULT_CROSSOVER_TYPE = Enums::CrossoverType::Sexual;
const static int DEFAULT_CROSSOVER_POINT = 0.7;
@ -86,10 +96,15 @@ namespace BitEvolver
std::vector<std::shared_ptr<class Chromosome>> chromosomes;
int population_size;
bool population_needs_sorting;
int evolution_number;
//
Enums::CrossoverType crossover_type;
double crossover_point;
double mutation_rate;
int evolution_number;
Enums::ElitismType elitism_type;
double elitism_rate;
int elitism_count;
//
std::shared_ptr<class RouletteWheel> roulette_wheel;
@ -98,7 +113,8 @@ namespace BitEvolver
std::recursive_mutex
population_modification_mutex,
breed_mutex,
evaluate_fitness_mutex
evaluate_fitness_mutex,
copy_chromosomes_mutex
;
//
@ -113,6 +129,10 @@ namespace BitEvolver
void BreedNewPopulation(std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> population_new, int size);
void BreedNewPopulation_Thread(std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> population_new, int size);
//
int DetermineEliteCount();
void SeedPopulationWithElites(std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> population_new);
//
void EvaluateFitness_Thread(
std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> _chromosomes,
@ -123,6 +143,16 @@ namespace BitEvolver
std::function<double(std::shared_ptr<Chromosome>)> evaluation_callback
);
//
void CopyChromosomes(
std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> _chromosomes_source,
std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> _chromosomes_destination
);
void CopyChromosomes_Thread(
std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> _chromosomes_source,
std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> _chromosomes_destination
);
//
std::shared_ptr<Chromosome> BreedChild();