Production Scheduling of Open Pit Mines Using Particle Swarm Optimization Algorithm

Table 3

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

Local GCPSO	% GAP		CPU time (minutes)
	Mean	Standard deviation
= 4	5.84	0.17	138.83
= 8	5.36	0.27	143.09
= 12	5.53	0.31	145.75
= 16	5.07	0.41	145.34
= 20	5.38	0.44	145.55
= 24	5.44	0.31	145.79
Global GCPSO	5.15	0.51	122.40
Multistart GCPSO	4.34	0.50	118.19