Table 19 GD and IGD of some benchmark functions for the nGrid parameter.

From: A memorized multi-objective Sinh-Cosh optimizer for solving multi-objective engineering design problems

nGrid

ZDT1

UF4

MMF11

MMF14

GD

IGD

GD

IGD

GD

IGD

GD

IGD

3

0.672

0.363

0.148

0.087

3.225

3.264

31.481

2.0424

5

0.750

0.322

0.598

0.341

2.973

2.916

34.01

12.516

7

0.501

0.379

0.504

0.412

2.779

2.876

33.805

17.628

10

0.441

0.292

0.693

0.349

2.871

2.668

23.403

2.980

12

0.358

0.210

0.596

0.431

2.831

2.905

24.003

3.125

15

0.160

0.083

0.400

0.250

2.651

2.705

34.670

11.826

18

0.056

0.031

0.726

0.351

3.609

3.701

33.697

3.168

20

0.025

0.018

0.487

0.290

3.115

2.913

39.667

47.540

25

0.065

0.033

0.458

0.295

2.499

2.197

13.148

12.166

30

0.280

0.166

0.642

0.531

2.790

3.059

35.332

35.976

35

0.067

0.037

0.352

0.201

3.789

3.890

38.861

51.629

40

0.223

0.124

0.670

0.453

2.575

2.610

23.834

32.617

45

0.207

0.105

0.765

0.490

3.758

3.910

20.235

22.870

50

0.139

0.073

0.498

0.250

3.449

3.281

31.496

2.459

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