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. 2020 Jul 6;21(3):1569–1612. doi: 10.1007/s12351-020-00583-5

Table 6.

Results of solving problem set 1 with 3 and 4 levels of reassignment

Problem # Level CPLEX LR1 LR2 CPU time (s)
LB UB Gap (%) ITR LB UB Gap (%) ITR CPLEX LR 1 LR2
1 3 415.5 415.5 415.5 0.000 16 415.5 415.5 0.000 15 0.7 570 6
4 415.5 415.5 415.5 0.000 19 415.5 415.5 0.000 15 1 592 7
2 3 398.3 398.3 398.3 0.000 23 398.3 398.3 0.000 9 1 614 5
4 398.3 398.3 398.3 0.000 21 398.3 398.3 0.000 9 2 745 4
3 3 729.2 731.5 731.5 0.315 13 701.8 710.8 1.291 6 5 959 30
4 729.2 729.2 729.22 0.000 24 701.8 710.8 1.291 5 6 1260 28
4 3 506.4 506.4 506.4 0.000 3 506.4 506.4 0.000 15 0.7 25 6
4 506.4 506.4 506.4 0.000 3 506.4 506.4 0.000 15 1 62 6
5 3 570.1 570.1 570.1 0.000 12 570.1 570.1 0.000 12 1 24 24
4 570.1 570.1 570.1 0.000 60 570.1 570.1 0.000 12 1 152 25
6 3 479.0 479.0 479.0 0.000 6 479.0 479.0 0.000 6 0.9 72 3
4 479.0 479.0 479.0 0.000 4 479.0 479.0 0.000 6 1 1006 3
7 3 618.9 618.9 618.9 0.000 10 537.2 538.1 0.172 9 0.9 358 30
4 618.9 592.6 701.3 18.343 14 537.2 538.1 0.172 9 1 1263 29
8 3 450.5 450.5 450.5 0.000 14 450.5 450.5 0.000 15 0.9 99 7
4 450.5 450.5 450.5 0.000 9 450.5 450.5 0.000 15 1 1525 7
9 3 591.7 591.7 591.7 0.000 67 591.7 591.7 0.000 13 0.9 1033 5
4 591.7 591.7 591.7 0.000 13 591.7 591.7 0.000 13 1 1026 5
10 3 587.4 559.4 587.4 5.005 16 586.1 598.8 2.165 17 1 1367 16
4 587.4 563.4 587.5 4.278 24 586.1 598.8 2.165 17 2 361 27