Table 2: Database used to construct the ML model.

Dataset Input attributes Number of selected instances

(m), (m),
1 , (KPa), (KPa),181 (Andrus and Stokoe, 1997, 2000) [20, 21]
, (m/s), , (g)

(m), (%),
2 (KPa), (MPa), 226 (Juang et al.,1999; Juang, 2003) [9, 22]
, (g)