pallas::internal::Metropolis Class Reference

Implements a probabilistic acceptance criterion for candidate solutions. More...

#include <metropolis.h>

Public Member Functions
	Metropolis (double T)
	~Metropolis ()
bool	accept_reject (double cost_new, double cost_old)
	Returns a bool whether to accept the candidate solution. More...
bool	operator() (double cost_new, double cost_old)
	Calls the accept_reject function Accepts the candidate solution based on the function: /code double w = std::min(1.0, exp(-1.0*(cost_new - cost_old)*beta)); double r = (*random_num)(); return w >= r; /endcode. More...

Detailed Description

Implements a probabilistic acceptance criterion for candidate solutions.

Constructor & Destructor Documentation

pallas::internal::Metropolis::Metropolis ( double  T )

inline

Constructor

Parameters

T	double. "Temperature" –higher temperatures will result in higher cost functions being accepted with higher probability.

pallas::internal::Metropolis::~Metropolis ( )

inline

Default destructor

Member Function Documentation

bool pallas::internal::Metropolis::accept_reject ( double  cost_new, double  cost_old  )

inline

Returns a bool whether to accept the candidate solution.

Accepts the candidate solution based on the function: /code double w = std::min(1.0, exp(-1.0*(cost_new - cost_old)*beta)); double r = (*random_num)(); return w >= r; /endcode

Parameters

cost_new	double. cost of the candidate solution.
cost_old	cost of the current solution.

Returns

Bool whether the candidate solution was accepted.

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bool pallas::internal::Metropolis::operator() ( double  cost_new, double  cost_old  )

inline

Calls the accept_reject function Accepts the candidate solution based on the function: /code double w = std::min(1.0, exp(-1.0*(cost_new - cost_old)*beta)); double r = (*random_num)(); return w >= r; /endcode.

Parameters

cost_new	double. cost of the candidate solution.
cost_old	cost of the current solution.

Returns

Bool whether the candidate solution was accepted.

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

• src/pallas/internal/metropolis.h