be.hogent.tarsos.lsh.families
Class IntersectionDistance

java.lang.Object
  be.hogent.tarsos.lsh.families.IntersectionDistance

All Implemented Interfaces:

DistanceMeasure

public class IntersectionDistance
extends java.lang.Object
implements DistanceMeasure

Calculates the intersection of one vector with an other vector. Intersection is normally between 0 and 1. 1 meaning 100% overlap. To make it a distance measure, 1 - intersection is done, so 1 becomes no intersection, 0 total overlap.

This distance measure has no related hash family.

Author:

Joren Six

Constructor Summary

IntersectionDistance()

Method Summary

double

distance(Vector one, Vector other) Calculate the distance between two vectors.

Methods inherited from class java.lang.Object

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

Constructor Detail

IntersectionDistance

public IntersectionDistance()

Method Detail

distance

public double distance(Vector one,
                       Vector other)

Description copied from interface: DistanceMeasure

Calculate the distance between two vectors. From one to two.

Specified by:

distance in interface DistanceMeasure

Parameters:

one - The first vector.

other - The other vector

Returns:

A value representing the distance between two vectors.