cat.lump.ir.retrievalmodels.similarity

Class VectorCosine

java.lang.Object

cat.lump.ir.retrievalmodels.similarity.VectorCosine

All Implemented Interfaces:

SimilarityMeasure

public class VectorCosine
extends java.lang.Object
implements SimilarityMeasure

A class to compute the cosine similarity between two vectors.

Since:

November 22 2013 TODO should this be moved to the vector class?

Version:

0.1

Author:

albarron

Constructor Summary

Constructors

Constructor and Description
VectorCosine()

Method Summary

Methods

Modifier and Type	Method and Description
double	compute(Vector v1, Vector v2) Computes the cosine similarity measure between two vectors sim(v1,v2) = (v1 * v2) / (|v1||v2|)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VectorCosine

public VectorCosine()

Method Detail

compute

public double compute(Vector v1,
             Vector v2)

Computes the cosine similarity measure between two vectors sim(v1,v2) = (v1 * v2) / (|v1||v2|)

Specified by:

compute in interface SimilarityMeasure

Parameters:

v1 -

v2 -

Returns: