object LogisticFunction
The LogisticFunction
object contains Activation functions.
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def
logistic(t: VectoD, a: Double, b: Double): VectoD
Compute the vector of values of the logistic function applied to vector 't'.
Compute the vector of values of the logistic function applied to vector 't'. The values are computed in-place.
- t
the logistic function argument
- a
the shift parameter
- b
the spread parameter
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def
logistic(t: Double, a: Double, b: Double): Double
Compute the value of the logistic function at 't'.
Compute the value of the logistic function at 't'.
- t
the logistic function argument
- a
the shift parameter
- b
the spread parameter
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def
logit(p: Double): Double
Compute the log of the odds of an event occurring (e.g., success, 1).
Compute the log of the odds of an event occurring (e.g., success, 1). The inverse of the logit function is the standard logistic function (sigmoid function).
- p
the probability, a number between 0 and 1.
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def
sigmoid(t: VectoD): VectoD
Return the vector of values of the sigmoid function applied to vector 't.' The values are computed in-place.
Return the vector of values of the sigmoid function applied to vector 't.' The values are computed in-place.
- t
the sigmoid function vector argument
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def
sigmoid(t: Double): Double
Compute the value of the sigmoid function at 't'.
Compute the value of the sigmoid function at 't'. This is a special case of the logistic function, where 'a = 0' and 'b = 1'. It is also referred to as the standard logistic function. It is also the inverse of the logit function.
- t
the sigmoid function argument
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