Research Article

Forward VNS, Reverse VNS, and Multi-VNS Algorithms for Job-Shop Scheduling Problem

Table 1

Solution value deviations (%) of 16 FVNS and 16 RVNS algorithms.

AlgorithmInstanceAvg
ft10ft20la16la20la21la22la24la25la27la29la36la37la38la39la40

FSSSS0.0000.0000.0000.0000.0960.0000.3210.7160.8911.3890.4730.7160.0000.0000.4910.118
FSSSI0.0000.0000.0000.0000.0960.0000.3210.0000.2431.1280.0000.7160.0000.0000.1640.062
FSSIS0.0000.0000.0000.0000.0960.3240.3210.0000.2431.4760.0001.0020.9200.3240.1640.113
FSSII0.0000.0000.0000.0000.0000.0000.3210.0000.0001.0420.0000.0000.9200.0000.1640.057
FSISS0.8600.0000.0000.0000.6690.3240.3210.0000.8911.7360.0000.0000.9200.0000.4910.144
FSISI0.8600.0000.0000.0000.6690.3240.3210.3070.4050.9550.0000.7160.4180.0000.1640.119
FSIIS0.0000.0000.1060.0000.6690.0000.3210.5120.4860.8680.0000.0000.9200.0000.1640.094
FSIII0.0000.0000.0000.0000.7650.0000.3210.5120.0000.8680.0000.0000.9200.0000.1640.083
FISSS0.0000.0000.0000.5540.0960.3240.3210.0000.0001.1280.0000.2150.5850.3240.1640.086
FISSI0.8600.0000.0000.0000.0000.3240.3210.5120.4052.1700.0000.0000.5850.0000.1640.124
FISIS0.0000.0000.0000.0000.4780.3240.3210.0000.1620.6940.0000.0000.4180.0000.1640.060
FISII0.0000.0000.0000.5540.4780.3240.3210.0000.4051.7360.0000.7160.9200.0000.1640.131
FIISS0.7530.0000.0000.0000.0000.0000.3210.2051.1341.9100.0000.0000.0000.9730.1640.127
FIISI0.0001.1160.0000.5540.0960.0000.3210.3070.0000.9550.0000.7160.4180.0000.3270.112
FIIIS0.8600.0000.0000.0000.0960.3240.3210.3070.4051.0420.0000.7160.0000.0000.1640.098
FIIII0.0000.0000.0000.0000.5740.0000.3210.3070.4861.0420.0000.0000.4180.0000.1640.077
RSSSS0.0000.0000.0000.0000.6690.0000.5350.0000.4052.0830.0000.0000.0000.0000.1640.090
RSSSI0.0000.0000.0000.0000.3820.3240.3210.3070.0000.9550.0790.0000.9200.0000.1640.080
RSSIS0.0000.0000.0000.0000.0000.0000.0000.0000.0002.2570.0000.0000.0000.0000.5730.066
RSSII0.0000.0000.0000.0000.6690.0000.0000.5120.1621.8230.0000.0000.9200.0000.1640.099
RSISS1.5050.0000.0000.0000.1910.0000.3210.6140.0002.6040.0000.0000.4180.0000.1640.135
RSISI0.0000.0000.0000.0000.0960.0000.3210.6140.0001.0420.0000.0000.9200.0000.1640.073
RSIIS0.8600.0000.0000.0000.6690.0000.3210.3070.0001.0420.0000.7160.9200.0000.1640.116
RSIII0.8600.0000.0000.0001.2430.0000.3210.0000.0001.0420.0000.0000.9200.0000.1640.106
RISSS0.0000.0000.0000.0000.0960.0000.4280.5121.1341.9100.0000.7160.4180.0000.1640.125
RISSI0.0000.0000.0000.0000.5740.0000.3210.5120.0001.2150.0000.0000.4180.0000.1640.074
RISIS0.0000.0000.0000.0000.5740.3240.3210.5120.0001.0420.0000.0000.9200.0000.1640.090
RISII0.0000.0000.0000.0000.5740.0000.6420.0000.1620.9550.4730.0000.9200.0000.1640.090
RIISS0.0000.0000.0000.0000.4780.3240.3210.5120.4051.0420.0000.0000.4180.0000.1640.085
RIISI0.0000.0000.1060.5540.3820.0000.3210.5120.0001.3020.0000.0000.0000.0000.1640.078
RIIIS0.8600.0000.0000.0000.0000.3240.6420.0000.5670.6940.0000.0000.9200.0000.1640.097
RIIII0.8600.0000.0000.0000.4780.3240.3210.0000.5671.3020.0000.0000.0000.0000.1640.093
Best0.0000.0000.0000.0000.0000.0000.0000.0000.0000.6940.0000.0000.0000.0000.1640.020

Remark: (i) the solution value deviations of the remaining 28 instances from the total 43 instances, which are not shown in Table 1, are 0.000% for all 32 VNS algorithms.
(ii) Avg refers to the average solution value deviation over all 43 instances for each VNS algorithm.