âBush lost reelection largely because of a recession that had already ended well before voting day,â frum wrote. The Twilight Vindication of George H.W. Bush Mark K. Updegrove October 20, 2013. As frum notes, Cruz is âa hugely smart, highly focused political player, with a clear-eyed view of political realities.â.
In biologically inspired neural networks, the activation function is usually an abstraction representing the rate of action potential firing in the cell.
Types of Activation Functions. An activation function is defined by and defines the output of a neuron in terms of its input (aka induced local field) . There are three types of activation functions. Threshhold function an example of which is This function is also termed the Heaviside function.