C# Class Accord.Genetic.RouletteWheelSelection

Roulette wheel selection method.

The algorithm selects chromosomes to the new generation according to their fitness values - the more fitness value chromosome has, the more chances it has to become member of new generation. Each chromosome can be selected several times to the new generation.

The "roulette's wheel" is divided into sectors, which size is proportional to the fitness values of chromosomes - the size of the wheel is the sum of all fitness values, size of each sector equals to fitness value of chromosome.

Inheritance: ISelectionMethod

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Public Methods

Method	Description
ApplySelection ( List chromosomes, int size ) : void	Apply selection to the specified population. Filters specified population keeping only those chromosomes, which won "roulette" game.
RouletteWheelSelection ( ) : System	Initializes a new instance of the RouletteWheelSelection class.

Method Details

ApplySelection() public method

Apply selection to the specified population.

Filters specified population keeping only those chromosomes, which won "roulette" game.

public ApplySelection ( List chromosomes, int size ) : void
chromosomes	List	Population, which should be filtered.
size	int	The amount of chromosomes to keep.
return	void

RouletteWheelSelection() public method

Initializes a new instance of the RouletteWheelSelection class.

public RouletteWheelSelection ( ) : System
return	System