C# Class MyMediaLite.Correlation.Jaccard

Class for storing and computing the Jaccard index (Tanimoto coefficient)

The Jaccard index is often also called the Tanimoto coefficient. http://en.wikipedia.org/wiki/Jaccard_index

Inheritance: MyMediaLite.Correlation.BinaryDataSymmetricCorrelationMatrix

Public Methods

Method	Description
ComputeCorrelation ( HashSet vector_i, HashSet vector_j ) : float	Computes the Jaccard index of two binary vectors
ComputeCorrelations ( IBooleanMatrix entity_data ) : void
Create ( IBooleanMatrix vectors ) : CorrelationMatrix	Creates a Jaccard index matrix from given data
Jaccard ( CorrelationMatrix correlation_matrix ) : System	Copy constructor. Creates an object of type Jaccard from an existing correlation matrix
Jaccard ( int num_entities ) : System	Creates an object of type Jaccard

Computes the Jaccard index of two binary vectors

public static ComputeCorrelation ( HashSet vector_i, HashSet vector_j ) : float
vector_i	HashSet	the first vector
vector_j	HashSet	the second vector
return	float

public ComputeCorrelations ( IBooleanMatrix entity_data ) : void
entity_data	IBooleanMatrix
return	void

Creates a Jaccard index matrix from given data

public static Create ( IBooleanMatrix vectors ) : CorrelationMatrix
vectors	IBooleanMatrix	the boolean data
return	CorrelationMatrix

Copy constructor. Creates an object of type Jaccard from an existing correlation matrix

public Jaccard ( CorrelationMatrix correlation_matrix ) : System
correlation_matrix	CorrelationMatrix	the correlation matrix to copy
return	System

Creates an object of type Jaccard

public Jaccard ( int num_entities ) : System
num_entities	int	the number of entities
return	System