roulettewheel

type RouletteWheel ¶

type RouletteWheel struct {
	// contains filtered or unexported fields
}

The `RouletteWheel` scheme updates operator weights as a convex combination of the current weight, and the new score.

func NewRouletteWheel(
	scores [4]float64,
	decay float64,
	numDestroy int,
	numRepair int,
	opCoupling [][]bool,
) (RouletteWheel, error)

func (s *RouletteWheel) Select(rnd *rand.Rand, best, current alns.State) (int, int, error)

func (s *RouletteWheel) Update(candidate alns.State, deleteOpIndx int, repairOpIndx int, outcome alns.Outcome) error