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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Comput Chem Eng. 2021 Sep 28;156:107551. doi: 10.1016/j.compchemeng.2021.107551

Table 5:

The best-found solutions for the integrated planning and scheduling case studies using DOMINO with various data-driven optimization solvers. The scheduling levels for Example 1 and 2 are solved with 5 event points whereas for Example 3, 6 event points are used. Standard deviation is calculated with the scaled objective function values reported below. The bold values reflect the best-performing solver among the tested.

NOMAD COBYLA ARGONAUT EGO ISRES
Example 1

LP-MILP/1000 7.11 7.42 7.45 8.16 -
Infeasible Runs (Out of 10) 0 1 0 2 10
Std. Dev. 0.33 0.78* 0.28 0.73* -
Tot. No. Samples 1508 187 3028 97 -
NLP-MIQP/1000 6.20 6.41 6.29 6.46 6.66
Infeasible Runs 0 1 0 2 9
Std. Dev. 0.04 0.26* 0.06 0.2 0*
Tot. No. Samples 658 131 4258 106 8507

Example 2

LP-MILP/1000 13.52 15.03 14.49 15.32 -
Infeasible Runs 0 9 0 3 10
Std. Dev. 0.28 0* 0.65 0.9* -
Tot. No. Samples 2972 396 2912 210 -
NLP-MIQP/1000 12.21 - 12.33 12.55 -
Infeasible Runs 0 10 0 3 10
Std. Dev. 0.09 - 0.1 0.23 -
Tot. No. Samples 2527 - 2358 127 -

Example 3

LP-MILP/1000 102.08 109.46 112.73 120.33 130.20
Infeasible Runs 0 3 0 0 4
Std. Dev. 0.92 10.66* 3.4 3.21 4.26*
Tot. No. Samples 9572 1015 1165 376 7950
NLP-MIQP/1000 224.69 224.94 233.12 241.15 277.39
Infeasible Runs 0 4 0 0 7
Std. Dev. 0.2 27.65* 5.44 7.84 8.24*
Tot. No. Samples 9426 4097 1169 288 6409
*

Standard deviation calculation excludes infeasible runs.