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Questions and Answers
An activation ______ is saturating if $lim_{|v|\to \infty}|\nabla f(v)| = 0$.
An activation ______ is saturating if $lim_{|v|\to \infty}|\nabla f(v)| = 0$.
function
Non-saturating activation functions, such as ReLU, may be better than ______ activation functions.
Non-saturating activation functions, such as ReLU, may be better than ______ activation functions.
saturating
The activation function of a node defines the output of that node given an input or set of inputs. A standard integrated circuit can be seen as a digital network of ______ functions.
The activation function of a node defines the output of that node given an input or set of inputs. A standard integrated circuit can be seen as a digital network of ______ functions.
activation
The most common activation functions can be divided into three categories: ______ functions, radial functions and fold functions.
The most common activation functions can be divided into three categories: ______ functions, radial functions and fold functions.
Only ______ activation functions allow such networks to compute nontrivial problems using only a small number of nodes.
Only ______ activation functions allow such networks to compute nontrivial problems using only a small number of nodes.
Flashcards
Saturating Activation Function
Saturating Activation Function
An activation function is saturating if the magnitude of its gradient approaches zero as the input grows large.
Non-Saturating Activation Function
Non-Saturating Activation Function
Non-saturating activation functions, like ReLU, have gradients that don't approach zero as input increases. This allows for better learning in neural networks.
Activation Function in Neural Networks
Activation Function in Neural Networks
A node's output is determined by its activation function, which processes the input. Circuits can be viewed as networks of these functions.
Ridge Function
Ridge Function
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Nonlinear Activation Function
Nonlinear Activation Function
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Study Notes
Activation Functions
- An activation function is said to be saturating if the limit of the magnitude of its gradient approaches 0 as the input magnitude approaches infinity.
- Non-saturating activation functions, such as ReLU, may be more effective than saturating activation functions.
- The activation function of a node determines the output of that node based on its input or set of inputs.
Digital Networks
- A standard integrated circuit can be viewed as a digital network of activation functions.
Categorization of Activation Functions
- The most common activation functions can be categorized into three types: sigmoid functions, radial functions, and fold functions.
- Only sigmoid activation functions enable networks to compute non-trivial problems using a relatively small number of nodes.
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