Table 8 Performance of regression machine learning models in JARVIS-ML with JARVIS-DFT data using OptB88vdW (OPT) and TBmBJ (MBJ) with mean absolute error (MAE).

From: The joint automated repository for various integrated simulations (JARVIS) for data-driven materials design

Property

Training data

MAE

MAD

Formation energy (eV/atom)

24549

0.12

0.81

OPT bandgap (eV)

22404

0.32

1.05

MBJ bandgap (eV)

10499

0.44

1.60

Bulk mod., Kv (GPa)

10954

10.5

49.95

Shear mod., Gv (GPa)

10954

9.5

23.26

Refr. Index(x) (OPT)

12299

0.54

1.15

Refr. Index(x) (MBJ)

6628

0.45

1.03

IR mode (OPT) (cm−1)

3411

77.84

316.7

Max. Born eff. charge (OPT) (e)

3411

0.60

1.48

Plane-wave cutoff (OPT) (eV)

24549

85.0

370.6

K-point length (OPT) (Å)

24549

9.09

22.23

2D-Exfoliation energy(OPT) (eV/atom)

616

37.3

46.09

  1. The mean absolute deviation (MAD) of properties are also included.