AncestorMetropolis< I, O, V, Q, Ts > Struct Template Reference

Metropolis Hastings using the prior distribution as the proposal. More...

#include "base.hpp"

Inheritance diagram for AncestorMetropolis< I, O, V, Q, Ts >:

Public Member Functions
V	operator() (I &input)
void	step (MetropolisState< Ts... > &state, pp_t< I, O, Ts... > f, Q< V, O, Ts... > &queryer, I input, inf_options_t opts)
Public Member Functions inherited from Inference< AncestorMetropolis, I, O, V, Q, Ts... >
	Inference (pp_t< I, O, Ts... > f, Q< V, O, Ts... > &queryer, inf_options_t opts)
std::enable_if_t< has_proposal< G >::value==kernel::none, V >	operator() (I &input)
	Runs the specified inference algorithm with the specified queryer. More...
std::enable_if_t< has_proposal< G >::value==kernel::full, V >	operator() (I &input, P &proposal)
	Runs the specified inference algorithm with the specified queryer using the specified proposal distribution. More...
std::enable_if_t< has_proposal< G >::value==kernel::partial, V >	operator() (I &input, pp_t< record_t< Ts... >, double, Ts... > &proposal)
	Runs the specified inference algorithm with the specified queryer using the specified proposal distribution. More...

Additional Inherited Members
Public Attributes inherited from Inference< AncestorMetropolis, I, O, V, Q, Ts... >
pp_t< I, O, Ts... >	f
inf_options_t	opts
Q< V, O, Ts... > &	queryer

Detailed Description

template<typename I, typename O, typename V, template< class, class, class... > class Q, typename... Ts>
struct AncestorMetropolis< I, O, V, Q, Ts >

Metropolis Hastings using the prior distribution as the proposal.

Suppose the generative model factors as \( p(x,z) = p(x|z)p(z) \). The acceptance ratio is \( \log \alpha = \log p(x|z') - \log p(x|z) \), where \( z' \sim p(z) \) is the new draw from the prior, and \( z \sim p(z) \) is the old/existing draw from the prior. Each weight passed to the queryer is \( \log w = 0 \).

Template Parameters

I	The input type of the program on which to perform inference
O	The output type of the program on which to perform inference
V	The type emitted by the queryer
Q	The queryer type
Ts	The distribution types used in the probabilistic program

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

• lib/inference/metropolis/base.hpp