Evolutionary Multiobjective Site Selection of Xi’an Medical Emergency Material Warehouse Based on Multiple Memetic Directions

Algorithm 2

Genetic operator based on multiple memetic directions.

	Input: Individual , crossover probability , mutation probability , number of selectable genes in the crossover
	Output:
(1)	fordo
(2)	Select a set of subsets randomly from the neighbor set of
(3)	Select the individual with the best decomposition objective function value in this subset as
(4)	end for
(5)	//Crossover
(6)	fordo
(7)	Randomly select a hospital location subset
(8)	Generate a random number and generate the hospital position based on the formula (5)
(9)	end for
(10)	//Mutation
(11)	fordo
(12)	A random direction is randomly generated according to formula (7)
(13)	Select the nearest two hospital locations, and calculate the relevant search directions of the two problems according to formulas (8) and (9)
(14)	Generate a random number and generate the hospital location according to formula (6)
(15)	end for