The hard sigmoid function, defined by. More...

Static Public Member Functions
static double	Deriv (const double y)
	Computes the first derivatives of hard sigmoid function. More...

template < typename InputVecType , typename OutputVecType >
static void	Deriv (const InputVecType &y, OutputVecType &x)
	Computes the first derivatives of the hard sigmoid function. More...

static double	Fn (const double x)
	Computes the hard sigmoid function. More...

template < typename InputVecType , typename OutputVecType >
static void	Fn (const InputVecType &x, OutputVecType &y)
	Computes the hard sigmoid function. More...

Detailed Description

The hard sigmoid function, defined by.

$\begin{eqnarray*} f(x) &=& \min(1, \max(0, 0.2 * x + 0.5)) \\ f'(x) &=& \left\{ \begin{array}{lr} 0.0 & : x={0,1} \\ 0.2 \end{array} \right. \end{eqnarray*}$

Definition at line 34 of file hard_sigmoid_function.hpp.

Member Function Documentation

◆ Deriv() [1/2]

static double Deriv ( const double y )

inlinestatic

Computes the first derivatives of hard sigmoid function.

Parameters

y	Input data.

Returns: f'(x)

Definition at line 69 of file hard_sigmoid_function.hpp.

Referenced by HardSigmoidFunction::Deriv().

◆ Deriv() [2/2]

static void Deriv	(	const InputVecType &	y,
		OutputVecType &	x
	)

inlinestatic

Computes the first derivatives of the hard sigmoid function.

Parameters

y	Input data.
x	The resulting derivatives.

Definition at line 85 of file hard_sigmoid_function.hpp.

References HardSigmoidFunction::Deriv().

◆ Fn() [1/2]

static double Fn ( const double x )

inlinestatic

Computes the hard sigmoid function.

Parameters

x	Input data.

Returns: f(x).

Definition at line 43 of file hard_sigmoid_function.hpp.

Referenced by HardSigmoidFunction::Fn().

◆ Fn() [2/2]

static void Fn	(	const InputVecType &	x,
		OutputVecType &	y
	)

inlinestatic

Computes the hard sigmoid function.

Parameters

x	Input data.
y	The resulting output activations.

Definition at line 55 of file hard_sigmoid_function.hpp.

References HardSigmoidFunction::Fn().

The documentation for this class was generated from the following file:

/home/ryan/src/mlpack.org/_src/mlpack-git/src/mlpack/methods/ann/activation_functions/hard_sigmoid_function.hpp

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ Deriv() [1/2]

◆ Deriv() [2/2]

◆ Fn() [1/2]

◆ Fn() [2/2]