Energy-Saving Production Scheduling in a Single-Machine Manufacturing System by Improved Particle Swarm Optimization

Table 9

Comparison of the mean TWT.

Scale-instance	PSO-LS	PSO	GA
10-1	666.8100	669.9850	666.8100
10-2	186.3200	186.4200	186.3200
10-3	273.2200	274.3000	273.6150
10-4	232.3720	229.3980	236.8330
10-5	1,114.7300	1,115.6540	1,117.5780
30-1	4,956.7030	4,938.7220	4,724.9780
30-2	18,087.6580	18,563.0790	19,007.3440
30-3	6,810.1500	6,919.5320	7,286.0000
30-4	9,355.2740	9,612.9000	9,701.4130
30-5	10,393.8770	10,603.2970	11,060.3790
50-1	47,373.0790	49,662.6280	50,611.0100
50-2	68,891.7570	70,747.0140	79,298.5780
50-3	61,826.2370	64,119.7600	67,243.0500
50-4	68,777.6710	70,193.7050	77,970.5510
50-5	29,073.9680	30,776.0000	33,192.1830
70-1	135,271.7270	143,512.1820	158,553.0030
70-2	164,900.6270	171,377.4080	183,845.9250
70-3	128,195.6660	135,871.2800	150,625.1680
70-4	110,219.4880	118,058.2520	138,250.7180
70-5	161,958.1090	166,567.7950	192,447.0210
100-1	287,348.7000	308,337.3160	452,220.2050
100-2	316,831.4730	339,679.4730	491,640.0870
100-3	363,915.9090	392,756.4790	550,393.6550
100-4	512,024.2470	541,724.8160	705,187.0550
100-5	352,616.9280	384,112.2770	588,789.3920
300-1	13,726,081.6490	14,313,663.8880	35,374,531.8320
300-2	12,896,793.1160	13,395,467.6770	34,768,966.6680
300-3	10,358,806.2330	10,809,516.3790	30,715,756.5610
300-4	13,422,518.7670	14,022,110.8640	35,002,552.1430
300-5	10,851,867.1710	11,269,214.0880	29,338,328.5100