edu.umass.cs.mallet.base.types

Class NormalizedDotProductMetric

java.lang.Object

edu.umass.cs.mallet.base.types.NormalizedDotProductMetric

All Implemented Interfaces:

CachedMetric, Metric

public class NormalizedDotProductMetric
extends Object
implements CachedMetric

Computes 1 - [ / sqrt (*)]

Constructor Summary

Constructors

Constructor and Description
NormalizedDotProductMetric()

Method Summary

Modifier and Type	Method and Description
double	distance(SparseVector a, int hashCodeA, SparseVector b, int hashCodeB)
double	distance(SparseVector a, SparseVector b)

Methods inherited from class java.lang.Object

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

Constructor Detail

NormalizedDotProductMetric

public NormalizedDotProductMetric()

Method Detail

distance

public double distance(SparseVector a,
                       SparseVector b)

Specified by:

distance in interface Metric

distance

public double distance(SparseVector a,
                       int hashCodeA,
                       SparseVector b,
                       int hashCodeB)

Specified by:

distance in interface CachedMetric