Research Article
Chip Attach Scheduling in Semiconductor Assembly
Table 1
Comparison of objective function values using heuristics and
-learning.
| Dataset no. | WSPT | MWSPT | RA | LFM-MWSPT | LFM-RA | LWF | Q-Learning |
| 1 | 88.867 | 78.116 | 59.758 | 87.689 | 57.582 | 42.253 | −3.8613 | 2 | 138.44 | 135.86 | 110.747 | 126.69 | 109.07 | 95.926 | 7.6657 | 3 | 119.01 | 108.75 | 124.09 | 104.25 | 121.90 | 83.332 | 23.775 | 4 | 83.681 | 60.797 | 39.073 | 69.405 | 45.575 | 33.920 | −4.4275 | 5 | 129.38 | 128.47 | 96.960 | 109.17 | 99.827 | 89.863 | 21.414 | 6 | 70.840 | 55.692 | 51.108 | 66.213 | 51.041 | 16.930 | −5.4467 | 7 | 120.90 | 100.60 | 95.399 | 109.33 | 90.754 | 76.422 | 27.374 | 8 | 102.42 | 107.80 | 116.56 | 103.33 | 107.62 | 93.663 | 11.840 | 9 | 94.606 | 87.914 | 81.763 | 88.812 | 80.331 | 60.164 | 33.036 | 10 | 90.803 | 88.164 | 90.773 | 87.926 | 88.56293 | 56.307 | 22.798 | 11 | 111.13 | 88.287 | 82.916 | 97.882 | 85.605 | 60.160 | 16.493 | 12 | 100.29 | 89.005 | 86.692 | 95.836 | 78.342 | 60.744 | −3.8617 |
| Average | 104.19 | 94.123 | 86.321 | 95.547 | 84.685 | 64.147 | 12.233 |
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