ADAM	Adaptive moment estimation
AI	Artificial intelligence
ANN	Artificial neural network
${\beta }_n$	ADAM algorithm parameter
$ϵ$	ADAM stability factor
$\eta$	ADAM step size
HB	Hardness Brinell
m	ADAM first moment estimate
UTS	Ultimate tensile strength
$S_x$	Standard deviation
$\nu$	ADAM second moment estimate
$\overline{x}$	Average
${\overline{x}}_{90\%}$	Trimmed mean at $90\%$
YS	Yield stress