mlpack::tree::CosineTreeBuilder Class Reference

Public Member Functions
	CosineTreeBuilder ()
	Empty Constructor. More...
	~CosineTreeBuilder ()
	Destructor. More...
void	CTNode (arma::mat A, CosineTree &root)
	Creates a new cosine tree node. More...
void	CTNodeSplit (CosineTree &root, CosineTree &left, CosineTree &right)
	Splits a cosine tree node. More...

Private Member Functions
arma::rowvec	CalculateCentroid (arma::mat A) const
	Calculates the centroid of the matrix. More...
void	CreateCosineSimilarityArray (std::vector< double > &c, arma::mat A, size_t pivot)
	Creates Cosine Similarity Array. More...
double	GetMaxSimilarity (std::vector< double > c)
	Calculates Maximum Cosine Similarity. More...
double	GetMinSimilarity (std::vector< double > c)
	Calculates Maximum Cosine Similarity. More...
size_t	GetPivot (arma::vec prob)
	Calculates the Pivot for splitting. More...
void	LSSampling (arma::mat A, arma::vec &prob)
	Length Square Sampling method for sampling rows of the matrix. More...
void	SplitData (std::vector< double > c, arma::mat &ALeft, arma::mat &Aright, arma::mat A)
	Splits the points into the root node into children nodes. More...

Detailed Description

Definition at line 33 of file cosine_tree_builder.hpp.

Constructor & Destructor Documentation

mlpack::tree::CosineTreeBuilder::CosineTreeBuilder

(

)

Empty Constructor.

mlpack::tree::CosineTreeBuilder::~CosineTreeBuilder

(

)

Destructor.

Member Function Documentation

arma::rowvec mlpack::tree::CosineTreeBuilder::CalculateCentroid ( arma::mat  A ) const

private

Calculates the centroid of the matrix.

Parameters

A	Matrix for which the centroid has to be calculated

void mlpack::tree::CosineTreeBuilder::CreateCosineSimilarityArray ( std::vector< double > &  c, arma::mat  A, size_t  pivot  )

private

Creates Cosine Similarity Array.

Parameters

c	Array of Cosine Similarity
A	All points
pivot	pivot point

void mlpack::tree::CosineTreeBuilder::CTNode	(	arma::mat	A,
		CosineTree &	root
	)

Creates a new cosine tree node.

Parameters

A	Data for constructing the node
root	Reference to the constructed node

void mlpack::tree::CosineTreeBuilder::CTNodeSplit	(	CosineTree &	root,
		CosineTree &	left,
		CosineTree &	right
	)

Splits a cosine tree node.

Parameters

root	Node to be split
right	reference to the right child
left	reference to the left child

double mlpack::tree::CosineTreeBuilder::GetMaxSimilarity ( std::vector< double >  c )

private

Calculates Maximum Cosine Similarity.

Parameters

c	Array of Cosine Similarities

double mlpack::tree::CosineTreeBuilder::GetMinSimilarity ( std::vector< double >  c )

private

Calculates Maximum Cosine Similarity.

Parameters

c	Array of Cosine Similarities

size_t mlpack::tree::CosineTreeBuilder::GetPivot ( arma::vec  prob )

private

Calculates the Pivot for splitting.

Parameters

prob	Probability for a point to act as the pivot

void mlpack::tree::CosineTreeBuilder::LSSampling ( arma::mat  A, arma::vec &  prob  )

private

Length Square Sampling method for sampling rows of the matrix.

Parameters

A	Matrix for which probabilities are calculated
prob	Reference to the probability vector

void mlpack::tree::CosineTreeBuilder::SplitData ( std::vector< double >  c, arma::mat &  ALeft, arma::mat &  Aright, arma::mat  A  )

private

Splits the points into the root node into children nodes.

Parameters

c	Array of Cosin Similarities
ALeft	Matrix for storing the points in Left Node
ARight	Matrix for storing the points in Right Node
A	All points

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

• src/mlpack/core/tree/cosine_tree/cosine_tree_builder.hpp