Real-Time Structural Damage Assessment Using Artificial Neural Networks and Antiresonant Frequencies

Table 3

Network validation performance with different transfer functions.

Output transfer function	𝐸𝑠	Hidden transfer function	𝐸𝑠
Hyperbolic tangent sigmoid	0.0067	Hyperbolic tangent sigmoid	0.0045
Logarithm sigmoid	0.0134	Logarithm sigmoid	0.0044
Linear	0.0060	Linear	0.0130
Saturating linear	0.0127	Saturating linear	0.0050
Symmetric saturating linear	0.0046	Symmetric saturating linear	0.0047