GClasses::GActivationTanH Class Reference

The hyperbolic tangent activation function. More...

#include <GActivation.h>

Inheritance diagram for GClasses::GActivationTanH:

Public Member Functions
virtual double	center ()
	Returns 0.0. More...
virtual GActivationFunction *	clone ()
	See the comment for GActivationFunction::clone. More...
virtual double	derivative (double x)
	Returns sech(x)*sech(x) More...
virtual double	derivativeOfNet (double net, double activation)
	Returns 1-(y*y) More...
virtual double	halfRange ()
	Returns 1.0. More...
virtual double	identityBias ()
	Returns 0.0. More...
virtual double	identityDiag ()
	Returns 1.0. More...
virtual double	inverse (double y)
	Returns atanh(y), where -1 <= y <= 1. More...
virtual const char *	name () const
	Returns the name of this activation function. More...
virtual double	squash (double x)
	Returns tanh(x). The result is in the range -1 <= y <= 1. More...
Public Member Functions inherited from GClasses::GActivationFunction
	GActivationFunction ()
virtual	~GActivationFunction ()
GDomNode *	serialize (GDom *pDoc) const
	Serialize this object. More...

Additional Inherited Members
Static Public Member Functions inherited from GClasses::GActivationFunction
static GActivationFunction *	deserialize (GDomNode *pNode)
	Deserialize this object. More...

Detailed Description

The hyperbolic tangent activation function.

Member Function Documentation

virtual double GClasses::GActivationTanH::center ( )

inlinevirtual

Returns 0.0.

Implements GClasses::GActivationFunction.

virtual GActivationFunction* GClasses::GActivationTanH::clone ( )

inlinevirtual

See the comment for GActivationFunction::clone.

Implements GClasses::GActivationFunction.

virtual double GClasses::GActivationTanH::derivative ( double  x )

inlinevirtual

Returns sech(x)*sech(x)

Implements GClasses::GActivationFunction.

virtual double GClasses::GActivationTanH::derivativeOfNet ( double  net, double  activation  )

inlinevirtual

Returns 1-(y*y)

Reimplemented from GClasses::GActivationFunction.

virtual double GClasses::GActivationTanH::halfRange ( )

inlinevirtual

Returns 1.0.

Implements GClasses::GActivationFunction.

virtual double GClasses::GActivationTanH::identityBias ( )

inlinevirtual

Returns 0.0.

Implements GClasses::GActivationFunction.

virtual double GClasses::GActivationTanH::identityDiag ( )

inlinevirtual

Returns 1.0.

Implements GClasses::GActivationFunction.

virtual double GClasses::GActivationTanH::inverse ( double  y )

inlinevirtual

Returns atanh(y), where -1 <= y <= 1.

Implements GClasses::GActivationFunction.

virtual const char* GClasses::GActivationTanH::name ( ) const

inlinevirtual

Returns the name of this activation function.

Implements GClasses::GActivationFunction.

virtual double GClasses::GActivationTanH::squash ( double  x )

inlinevirtual

Returns tanh(x). The result is in the range -1 <= y <= 1.

Implements GClasses::GActivationFunction.