Forecasting Models

RMSE

MAE

MAPE

SMAPE

Theil U₁

Theil U₂

Bulgaria

Single

0.453

0.343

14.082

13.297

0.051

1.000

Double

0.419

0.350

16.964

15.825

0.046

0.903

H-W

0.397

0.295

13.838

12.524

0.043

1.005

Croatia

Single

0.788

0.574

12.660

10.593

0.047

1.000

Double

0.543

0.345

7.368

7.371

0.031

1.014

H-W

0.495

0.363

6.065

5.877

0.028

0.779

Greece

Single

1.216

0.870

6.740

6.358

0.039

1.000

Double

0.700

0.553

3.820

3.788

0.022

0.754

H-W

0.673

0.504

3.226

3.193

0.021

0.696

Romania

Single

0.612

0.481

16.970

16.534

0.054

0.999

Double

0.545

0.344

15.759

15.107

0.047

1.080

H-W

0.495

0.349

12.983

11.880

0.043

0.870

Slovenia

Single

1.184

0.881

8.527

7.805

0.039

1.000

Double

0.764

0.517

4.306

4.271

0.025

0.800

H-W

0.660

0.455

3.322

3.294

0.021

0.670