Table 1.

Performance of the neural network for predicting contraction

Performance measure	Cross-validation value	Test value
$R^2$	0.9928 ± 0.0013	0.9950
aRRMSE	0.0626 ± 0.0080	0.0509
aRelErr	0.0023 ± 0.0003	0.0019
Training time	156 s	–
Validation time	–	0.93 s