Production Scheduling of Open Pit Mines Using Particle Swarm Optimization Algorithm

Table 2

Numerical results of different variants of the PSO algorithm in the case of problem 1.

Local PSO	% GAP		CPU time (minutes)
	Mean	Standard deviation
= 4	5.46	0.36	132.36
= 8	5.01	0.51	129.96
= 12	4.84	0.50	131.77
= 16	4.67	0.67	132.31
= 20	5.03	0.63	134.83
= 24	4.67	0.61	134.25
Global PSO	5.16	0.51	124.34
Multistart PSO	4.43	0.59	124.09