Inheritance diagram for ldaplusplus::optimization::ConstantLineSearch< ProblemType, ParameterType >:

Public Types
typedef ParameterType::Scalar	Scalar

Public Types inherited from ldaplusplus::optimization::LineSearch< ProblemType, ParameterType >
typedef ParameterType::Scalar	Scalar

Public Member Functions
	ConstantLineSearch (Scalar alpha)

Scalar	search (const ProblemType &problem, Eigen::Ref< ParameterType > x0, const ParameterType &grad_x0, const ParameterType &direction)

Detailed Description

ConstantLineSearch simply updates the parameter by a costant factor of the direction performing no line search actually.

Constructor & Destructor Documentation

template<typename ProblemType , typename ParameterType >

ldaplusplus::optimization::ConstantLineSearch< ProblemType, ParameterType >::ConstantLineSearch ( Scalar alpha )

inline

Parameters

alpha The amount to move towards the search direction

template<typename ProblemType , typename ParameterType >

Scalar ldaplusplus::optimization::ConstantLineSearch< ProblemType, ParameterType >::search	(	const ProblemType &	problem,
		Eigen::Ref< ParameterType >	x0,
		const ParameterType &	grad_x0,
		const ParameterType &	direction
	)

inlinevirtual

Search for a good enough function value in the direction given and the function given.

This function changes its parameter x0 which is passed by reference.

Parameters

problem	The function to be minimized
x0	The improved position (passed by reference)
grad_x0	The gradient at the initial x0
direction	The direction of search which can be different than the gradient to account for Newton methods

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