kjb::pt::Sample_scenes Class Reference

Use HMC to draw samples from the scene posterior using HMC. More...

#include <pt_sample_scenes.h>

Public Types
enum	Sample_method { HMC, MH }
typedef ergo::hmc_step< Scene >	Hmc_step
typedef ergo::mh_step< Scene >	Mh_step

Public Member Functions
	Sample_scenes (const Scene_posterior &posterior, bool infer_head)
const Scene_posterior &	scene_posterior () const
	Get posterior distribution. More...
void	set_scene_posterior (const Scene_posterior &post)
	Set posterior distribution. More...
void	set_sample_method (Sample_method method)
	Set the sampling method. More...
void	set_num_iterations (size_t num_its)
	Set the number of iterations and the fraction of HMC steps (vis-a-vis MH steps). More...
void	set_num_leapfrog_steps (size_t lf_steps)
	Set the number of leapfrog steps. More...
void	set_hmc_step_size (double pss)
	Set the HMC step sizes. More...
void	set_gradient_step_size (double pss)
	Set the gradient approximation step sizes. More...
void	set_size_proposal_sigmas (double hsdv, double wsdv, double gsdv)
	Set the MH proposal sigmas. More...
template<class StepIterator , class SampleIterator , class ProposalIterator , class PdIterator >
void	operator() (const Scene &initial_scene, boost::optional< StepIterator > step_out, boost::optional< SampleIterator > sample_out, boost::optional< ProposalIterator > proposed_out, boost::optional< PdIterator > pd_out) const
	Sample from the full likelihood. More...

Detailed Description

Use HMC to draw samples from the scene posterior using HMC.

Member Typedef Documentation

typedef ergo::hmc_step<Scene> kjb::pt::Sample_scenes::Hmc_step

typedef ergo::mh_step<Scene> kjb::pt::Sample_scenes::Mh_step

Member Enumeration Documentation

enum kjb::pt::Sample_scenes::Sample_method

Enumerator
HMC
MH

Constructor & Destructor Documentation

kjb::pt::Sample_scenes::Sample_scenes ( const Scene_posterior &  posterior, bool  infer_head  )

inline

Member Function Documentation

template<class StepIterator , class SampleIterator , class ProposalIterator , class PdIterator >

void kjb::pt::Sample_scenes::operator()	(	const Scene &	initial_scene,
		boost::optional< StepIterator >	step_out,
		boost::optional< SampleIterator >	sample_out,
		boost::optional< ProposalIterator >	proposed_out,
		boost::optional< PdIterator >	pd_out
	)		const

Sample from the full likelihood.

const Scene_posterior& kjb::pt::Sample_scenes::scene_posterior ( ) const

inline

Get posterior distribution.

void kjb::pt::Sample_scenes::set_gradient_step_size ( double  pss )

inline

Set the gradient approximation step sizes.

void kjb::pt::Sample_scenes::set_hmc_step_size ( double  pss )

inline

Set the HMC step sizes.

void kjb::pt::Sample_scenes::set_num_iterations ( size_t  num_its )

inline

Set the number of iterations and the fraction of HMC steps (vis-a-vis MH steps).

void kjb::pt::Sample_scenes::set_num_leapfrog_steps ( size_t  lf_steps )

inline

Set the number of leapfrog steps.

void kjb::pt::Sample_scenes::set_sample_method ( Sample_method  method )

inline

Set the sampling method.

void kjb::pt::Sample_scenes::set_scene_posterior ( const Scene_posterior &  post )

inline

Set posterior distribution.

void kjb::pt::Sample_scenes::set_size_proposal_sigmas ( double  hsdv, double  wsdv, double  gsdv  )

inline

Set the MH proposal sigmas.

---

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

• /work/kobus/src/lib/people_tracking_cpp/pt_sample_scenes.h