datafu.pig.hash.lsh

Class LSHFamily

java.lang.Object

datafu.pig.hash.lsh.LSHFamily

public class LSHFamily
extends java.lang.Object

A family of k locality sensitive hashes. For a given point, k hashes will be computed.

Constructor Summary

Constructors

Constructor and Description
LSHFamily(java.util.List<LSH> hashes) Construct a family of hashes

Method Summary

Modifier and Type	Method and Description
java.lang.Iterable<java.lang.Long>	apply(org.apache.commons.math.linear.RealVector vector) Compute the family of k-hashes for a vector.

Methods inherited from class java.lang.Object

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

Constructor Detail

LSHFamily

public LSHFamily(java.util.List<LSH> hashes)

Construct a family of hashes

Parameters:

hashes - Hashes which will be applied in turn to a given point

Method Detail

apply

public java.lang.Iterable<java.lang.Long> apply(org.apache.commons.math.linear.RealVector vector)

Compute the family of k-hashes for a vector.

Parameters:

vector - the vector

Returns:

An iterable of hashes