SYNOPSIS

Public Types

typedef

neighbor::NeighborSearchTraversalInfo

< TreeType > TraversalInfoType"

Public Member Functions

DTBRules (const arma::mat &dataSet, UnionFind &connections, arma::vec &neighborsDistances, arma::Col< size_t > &neighborsInComponent, arma::Col< size_t > &neighborsOutComponent, MetricType &metric)

double BaseCase (const size_t queryIndex, const size_t referenceIndex)

size_t BaseCases () const

Get the number of base cases performed. size_t & BaseCases ()

Modify the number of base cases performed. double Rescore (const size_t queryIndex, TreeType &referenceNode, const double oldScore)

Re-evaluate the score for recursion order. double Rescore (TreeType &queryNode, TreeType &referenceNode, const double oldScore) const

Re-evaluate the score for recursion order. double Score (const size_t queryIndex, TreeType &referenceNode)

Get the score for recursion order. double Score (const size_t queryIndex, TreeType &referenceNode, const double baseCaseResult)

Get the score for recursion order, passing the base case result (in the situation where it may be needed to calculate the recursion order). double Score (TreeType &queryNode, TreeType &referenceNode)

Get the score for recursion order. double Score (TreeType &queryNode, TreeType &referenceNode, const double baseCaseResult)

Get the score for recursion order, passing the base case result (in the situation where it may be needed to calculate the recursion order). size_t Scores () const

Get the number of node combinations that have been scored. size_t & Scores ()

Modify the number of node combinations that have been scored. const TraversalInfoType & TraversalInfo () const

TraversalInfoType & TraversalInfo ()

Private Member Functions

double CalculateBound (TreeType &queryNode) const

Update the bound for the given query node.

Private Attributes

size_t baseCases

The number of base cases calculated. UnionFind & connections

Stores the tree structure so far. const arma::mat & dataSet

The data points. MetricType & metric

The instantiated metric. arma::vec & neighborsDistances

The distance to the candidate nearest neighbor for each component. arma::Col< size_t > & neighborsInComponent

The index of the point in the component that is an endpoint of the candidate edge. arma::Col< size_t > & neighborsOutComponent

The index of the point outside of the component that is an endpoint of the candidate edge. size_t scores

The number of node combinations that have been scored. TraversalInfoType traversalInfo

Detailed Description

template<typename MetricType, typename TreeType>class mlpack::emst::DTBRules< MetricType, TreeType >

Definition at line 33 of file dtb_rules.hpp.

Member Typedef Documentation

template<typename MetricType , typename TreeType > typedef \fBneighbor::NeighborSearchTraversalInfo\fP<TreeType> \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::\fBTraversalInfoType\fP

Definition at line 123 of file dtb_rules.hpp.

Constructor & Destructor Documentation

template<typename MetricType , typename TreeType > \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::\fBDTBRules\fP (const arma::mat &dataSet, \fBUnionFind\fP &connections, arma::vec &neighborsDistances, arma::Col< size_t > &neighborsInComponent, arma::Col< size_t > &neighborsOutComponent, MetricType &metric)

Member Function Documentation

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::BaseCase (const size_tqueryIndex, const size_treferenceIndex)

template<typename MetricType , typename TreeType > size_t \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::BaseCases () const\fC [inline]\fP

Get the number of base cases performed.

Definition at line 129 of file dtb_rules.hpp.

References mlpack::emst::DTBRules< MetricType, TreeType >::baseCases.

template<typename MetricType , typename TreeType > size_t& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::BaseCases ()\fC [inline]\fP

Modify the number of base cases performed.

Definition at line 131 of file dtb_rules.hpp.

References mlpack::emst::DTBRules< MetricType, TreeType >::baseCases.

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::CalculateBound (TreeType &queryNode) const\fC [inline]\fP, \fC [private]\fP

Update the bound for the given query node.

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Rescore (const size_tqueryIndex, TreeType &referenceNode, const doubleoldScore)

Re-evaluate the score for recursion order. A low score indicates priority for recursion, while DBL_MAX indicates that the node should not be recursed into at all (it should be pruned). This is used when the score has already been calculated, but another recursion may have modified the bounds for pruning. So the old score is checked against the new pruning bound.

Parameters:

queryIndex Index of query point.

referenceNode Candidate node to be recursed into.

oldScore Old score produced by Score() (or Rescore()).

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Rescore (TreeType &queryNode, TreeType &referenceNode, const doubleoldScore) const

Re-evaluate the score for recursion order. A low score indicates priority for recursion, while DBL_MAX indicates that the node should not be recursed into at all (it should be pruned). This is used when the score has already been calculated, but another recursion may have modified the bounds for pruning. So the old score is checked against the new pruning bound.

Parameters:

queryNode Candidate query node to recurse into.

referenceNode Candidate reference node to recurse into.

oldScore Old score produced by Socre() (or Rescore()).

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Score (const size_tqueryIndex, TreeType &referenceNode)

Get the score for recursion order. A low score indicates priority for recursion, while DBL_MAX indicates that the node should not be recursed into at all (it should be pruned).

Parameters:

queryIndex Index of query point.

referenceNode Candidate node to be recursed into.

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Score (const size_tqueryIndex, TreeType &referenceNode, const doublebaseCaseResult)

Get the score for recursion order, passing the base case result (in the situation where it may be needed to calculate the recursion order). A low score indicates priority for recursion, while DBL_MAX indicates that the node should not be recursed into at all (it should be pruned).

Parameters:

queryIndex Index of query point.

referenceNode Candidate node to be recursed into.

baseCaseResult Result of BaseCase(queryIndex, referenceNode).

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Score (TreeType &queryNode, TreeType &referenceNode)

Get the score for recursion order. A low score indicates priority for recursionm while DBL_MAX indicates that the node should not be recursed into at all (it should be pruned).

Parameters:

queryNode Candidate query node to recurse into.

referenceNode Candidate reference node to recurse into.

template<typename MetricType , typename TreeType > double \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Score (TreeType &queryNode, TreeType &referenceNode, const doublebaseCaseResult)

Get the score for recursion order, passing the base case result (in the situation where it may be needed to calculate the recursion order). A low score indicates priority for recursion, while DBL_MAX indicates that the node should not be recursed into at all (it should be pruned).

Parameters:

queryNode Candidate query node to recurse into.

referenceNode Candidate reference node to recurse into.

baseCaseResult Result of BaseCase(queryIndex, referenceNode).

template<typename MetricType , typename TreeType > size_t \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Scores () const\fC [inline]\fP

Get the number of node combinations that have been scored.

Definition at line 134 of file dtb_rules.hpp.

References mlpack::emst::DTBRules< MetricType, TreeType >::scores.

template<typename MetricType , typename TreeType > size_t& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::Scores ()\fC [inline]\fP

Modify the number of node combinations that have been scored.

Definition at line 136 of file dtb_rules.hpp.

References mlpack::emst::DTBRules< MetricType, TreeType >::scores.

template<typename MetricType , typename TreeType > const \fBTraversalInfoType\fP& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::\fBTraversalInfo\fP () const\fC [inline]\fP

Definition at line 125 of file dtb_rules.hpp.

References mlpack::emst::DTBRules< MetricType, TreeType >::traversalInfo.

template<typename MetricType , typename TreeType > \fBTraversalInfoType\fP& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::\fBTraversalInfo\fP ()\fC [inline]\fP

Definition at line 126 of file dtb_rules.hpp.

References mlpack::emst::DTBRules< MetricType, TreeType >::traversalInfo.

Member Data Documentation

template<typename MetricType , typename TreeType > size_t \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::baseCases\fC [private]\fP

The number of base cases calculated.

Definition at line 167 of file dtb_rules.hpp.

Referenced by mlpack::emst::DTBRules< MetricType, TreeType >::BaseCases().

template<typename MetricType , typename TreeType > \fBUnionFind\fP& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::connections\fC [private]\fP

Stores the tree structure so far.

Definition at line 143 of file dtb_rules.hpp.

template<typename MetricType , typename TreeType > const arma::mat& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::dataSet\fC [private]\fP

The data points.

Definition at line 140 of file dtb_rules.hpp.

template<typename MetricType , typename TreeType > MetricType& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::metric\fC [private]\fP

The instantiated metric.

Definition at line 157 of file dtb_rules.hpp.

template<typename MetricType , typename TreeType > arma::vec& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::neighborsDistances\fC [private]\fP

The distance to the candidate nearest neighbor for each component.

Definition at line 146 of file dtb_rules.hpp.

template<typename MetricType , typename TreeType > arma::Col<size_t>& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::neighborsInComponent\fC [private]\fP

The index of the point in the component that is an endpoint of the candidate edge.

Definition at line 150 of file dtb_rules.hpp.

template<typename MetricType , typename TreeType > arma::Col<size_t>& \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::neighborsOutComponent\fC [private]\fP

The index of the point outside of the component that is an endpoint of the candidate edge.

Definition at line 154 of file dtb_rules.hpp.

template<typename MetricType , typename TreeType > size_t \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::scores\fC [private]\fP

The number of node combinations that have been scored.

Definition at line 169 of file dtb_rules.hpp.

Referenced by mlpack::emst::DTBRules< MetricType, TreeType >::Scores().

template<typename MetricType , typename TreeType > \fBTraversalInfoType\fP \fBmlpack::emst::DTBRules\fP< MetricType, TreeType >::traversalInfo\fC [private]\fP

Definition at line 164 of file dtb_rules.hpp.

Referenced by mlpack::emst::DTBRules< MetricType, TreeType >::TraversalInfo().

Author

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