August 2019
Intermediate to advanced
342 pages
9h 35m
English
Content preview from Hands-On Artificial Intelligence for Cybersecurity
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Artificial neurons and activation functions
We have already encountered (in Chapter 3, Ham or Spam? Detecting Email Cybersecurity Threats with AI) a particular type of artificial neuron, Rosenblatt's Perceptron, and we have seen that this artificial neuron emulates the behavior of neurons in the human brain by activating itself in the presence of a positive signal beyond a threshold.
To verify the presence of a positive signal beyond a threshold, a special function is used, known as the activation function, which, in the case of a Perceptron, has the following characteristics:
In practice, if the product of the wx values—consisting of the ...
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