Adaptive Cat Swarm Optimization Algorithm and Its Applications in Vehicle Routing Problems

Algorithm 2

ACSO tracing mode.

	while t < = Maxiteration do
	Adaptive adjustment parameter r by equations (8)∼(10)
	Compare the distance between Cat.Posi and cat’s gbest.Posi and pbest.Posi
	Dist2gbest = distances (Cat.Posi, gbest.Posi)
	if Dist2gbest < = radius then
	F = gbest.Posi − Cat.Posi
	else
	F = 0
	end if
	Dist2pbest = distances (Cat.Posi, pbest.Posi)
	if Dist2pbest < = radius then
	E = pbest.Posi + Cat.Posi
	else
	E = 0
	end if
	Update the position and velocity by equations (11) and (12)
	end while
	return gbest