Table 5 The statistical parameters of new correlations developed in the current study.

From: Toward empirical correlations for estimating the specific heat capacity of nanofluids utilizing GRG, GP, GEP, and GMDH

Technique

Dataset

APRE (%)

AAPRE (%)

RMSE

SD

R2

GRG [Eq. (14)]

Train

– 0.0893

2.9009

0.1346

0.0417

0.9549

Test

– 0.2619

3.1357

0.1436

0.0455

0.9513

Total

– 0.1239

2.9479

0.1365

0.0425

0.9542

GP [Eq. (15)]

Train

– 1.0456

3.0771

0.1314

0.0428

0.9588

Test

– 0.8034

2.7447

0.1180

0.0376

0.9676

Total

– 0.9971

3.0106

0.1288

0.0418

0.9607

GEP [Eq. (16)]

Train

– 0.5012

2.4082

0.1102

0.0362

0.9702

Test

– 0.2091

2.1603

0.0935

0.0295

0.9790

Total

– 0.4428

2.3586

0.1071

0.0349

0.9720

GMDH [Eq. (17)]

Train

– 0.1050

2.3974

0.1007

0.0334

0.9750

Test

– 0.1351

2.4915

0.1065

0.0351

0.9716

Total

– 0.1110

2.4163

0.1019

0.0338

0.9743

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