Production Scheduling of Open Pit Mines Using Particle Swarm Optimization Algorithm

Table 5

Numerical results of different variants of the GCPSO algorithm in the case of problem 2.

Local GCPSO	% GAP		CPU time (minutes)
	Mean	Standard deviation
= 4	3.28	0.26	22.29
= 8	2.96	0.39	22.72
= 12	3.09	0.27	23.17
= 16	2.70	0.50	23.50
= 20	2.63	0.63	23.53
= 24	2.28	0.36	23.94
Global GCPSO	2.67	0.47	20.32
Multistart GCPSO	2.70	0.62	20.12