Table 8 MAPE Comparative performance metric results between the proposed HHO-SVR model and other hybrid SVR approaches for dataset 1003 (50 Iterations and 10 Runs).

From: A hybrid Harris Hawks Optimization with Support Vector Regression for air quality forecasting

Run

EO-SVR

GWO-SVR

HGSO-SVR

BMO-SVR

MRFO-SVR

SSA-SVR

WOA-SVR

HHO-SVR

1

0.0123195

0.0123645

0.0123702

0.0123655

0.0122883

0.0123871

0.0123733

0.0124397

2

0.0123176

0.0123639

0.0123702

0.0123655

0.0122823

0.0123675

0.0123729

0.0124396

3

0.0123176

0.0123639

0.0123702

0.0123655

0.0122812

0.0123675

0.0123633

0.0124396

4

0.0123176

0.0123637

0.0123702

0.0123655

0.0122811

0.0123648

0.0123627

0.0124396

5

0.0123176

0.0123637

0.0123702

0.0123655

0.0122810

0.0123625

0.0123622

0.0124396

6

0.0123176

0.0123635

0.0123702

0.0123655

0.0122810

0.0123625

0.0123622

0.0124393

7

0.0123176

0.0123632

0.0123702

0.0123655

0.0122807

0.0123624

0.0123620

0.0124393

8

0.0123176

0.0123630

0.0123702

0.0123655

0.0122807

0.0123621

0.0123620

0.0124393

9

0.0123176

0.0123630

0.0123669

0.0123655

0.0122807

0.0123621

0.0123620

0.0124393

10

0.0123176

0.0123625

0.0123669

0.0123655

0.0122805

0.0123620

0.0123620

0.0124393