Inside test RMSE

Outside test RMSE

Velocity V

4.114 × 10⁻⁶

3.767 × 10⁻⁵

Relaxation time $\epsilon$

4.255 × 10⁻⁵

5.540 × 10⁻⁴

Parameter $\gamma$

2.427 × 10⁻⁶

1.123 × 10⁻⁵