There are two common activation functions used for NN hidden layer nodes, the logistic sigmoid function (often shortened to log-sigmoid or just sigmoid if the meaning is clear from context) and the ...

Confused about activation functions in neural networks? This video breaks down what they are, why they matter, and the most common types — including ReLU, Sigmoid, Tanh, and more! # ...

As it turns out, the preliminary, pre-activation sum (1.27 in the example) isn't important when using the common log-sigmoid or tanh activation functions, but the sum is needed during training when ...