Robust Extreme Learning Machine Using New Activation and Loss Functions Based on M-Estimation for Regression and Classification

Table 3

Proposed Activation Functions in Extreme Learning Machine and its variants.

Proposed 1	Lm1stf –function
Proposed 2	Alarm –function
Proposed 3	OLS –function
Proposed 4	Insha –function
Proposed 5	Welsch –function
Proposed 6	Bisquare –function
Proposed 7	Ali –function
Proposed 8	Qadir –function
Proposed 9	Cauchy –function
Proposed 10	Khalil –function
Proposed 11	Logistic –function

W1 = Tukey Bisquare M-estimator weights-loss function, W2 = Welsch weights-loss function, W3  = Gmtf, W4  = ALARM weights function, W5 = Insha weights-loss function, and W6 = Cauchy weights-loss function.