olb::opti::projection::Sigmoid< T > Struct Template Reference

#include <projection.h>

Inheritance diagram for olb::opti::projection::Sigmoid< T >:

Collaboration diagram for olb::opti::projection::Sigmoid< T >:

Public Member Functions
T	project (T x) const override
T	derivative (T x) const override
T	inverse (T x) const override

Detailed Description

template<typename T>
struct olb::opti::projection::Sigmoid< T >

Definition at line 63 of file projection.h.

Member Function Documentation

derivative()

template<typename T >

T olb::opti::projection::Sigmoid< T >::derivative ( T x ) const

inlineoverridevirtual

Implements olb::opti::projection::Base< T >.

Definition at line 66 of file projection.h.

{ return util::exp(x) / util::pow( util::exp(x) + T(1), 2 ); }

References olb::util::exp(), and olb::util::pow().

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inverse()

template<typename T >

T olb::opti::projection::Sigmoid< T >::inverse ( T x ) const

inlineoverridevirtual

Implements olb::opti::projection::Base< T >.

Definition at line 67 of file projection.h.

{ return -util::log(T(1)/x - T(1)); }

References olb::util::log().

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project()

template<typename T >

T olb::opti::projection::Sigmoid< T >::project ( T x ) const

inlineoverridevirtual

Implements olb::opti::projection::Base< T >.

Definition at line 65 of file projection.h.

{ return util::exp(x) / ( util::exp(x) + T(1) ); }

References olb::util::exp().

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

• src/optimization/projection.h