A methodical exploration of imaging modalities from dataset to detection through machine learning paradigms in prominent lung disease diagnosis: a review

Table 5 Prominent activation function

Ref	Activation Function	Output Range	Equation
[121]	Relu	0 to ( +) Values	\({f\left(x\right)}_{Relu}\text{= Max(0, x)}\)	(7)
[126]	Sigmoid	0 to 1	\(\updelta \left({\text{x}}\right)=\frac{1}{1+{{\text{e}}}^{-{\text{x}}}}\)	(8)
[127]	Tanh	(-) to ( +) Values	\(Tanh(x)=\frac{\left({e}^{x}-{e}^{-x}\right)}{\left({e}^{x}+{e}^{-x}\right)}\)	(9)

ISSN: 1471-2342