Machine Learning, AI and Programming

Tag: Interview Questions

Machine Learning Interview Questions and Answers (Part I)

What is the role of activation function in Neural Networks ? The role of the activation function in a neural network is to produce a non-linear decision boundary via non-linear combinations of the weighted inputs. A neural network classifier is essentially a logistic regression classifier without the hidden layers. The non-linearity to a neural network is added by the hidden layers using a sigmoid or similar activation functions.

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