1 votes 1 votes The Sigmoid activation function $f(t)$ is defined as $\dfrac{1}{\text{exp} (t) + \text{exp} (-t)}$ $t \text{ exp}(-t)$ $\dfrac{1}{1+ \text{exp} (t)}$ $\dfrac{1}{1+ \text{exp} (-t)}$ Unknown Category ugcnetcse-nov2017-paper3 + – Arjun asked Nov 5, 2017 edited Jul 6, 2020 by go_editor Arjun 911 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Sigmoid functions are used in artificial neural networks to introduce nonlinearity in the model. Correct option is (d) Ref: https://excel.ucf.edu/classes/2007/Spring/appsII/Chapter1.pdf Kuljeet Shan answered Nov 29, 2018 Kuljeet Shan comment Share Follow See 1 comment See all 1 1 comment reply abhinav kumar commented Jan 4, 2020 reply Follow Share Bro,Update the link It's 404 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes A sigmoid function is a mathematical function having a characteristic "S"-shaped curve or sigmoid curve. A common example of a sigmoid function is the logistic function shown in the first figure and defined by the formula: (Source- wiki) Hence, Option D is correct. Hradesh patel answered Jul 6, 2020 edited Jul 6, 2020 by Hradesh patel Hradesh patel comment Share Follow See all 0 reply Please log in or register to add a comment.