org.grouplens.lenskit.knn.user

Class Neighbor

java.lang.Object

org.grouplens.lenskit.knn.user.Neighbor

public class Neighbor
extends Object

Representation of a single neighboring user.

Field Summary

Fields

Modifier and Type	Field and Description
double	similarity
static Comparator<Neighbor>	SIMILARITY_COMPARATOR Comparator to order neighbors by similarity.
long	user
SparseVector	vector

Constructor Summary

Constructors

Constructor and Description
Neighbor(long u, SparseVector v, double sim) Construct a new neighbor.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

user

public final long user

vector

public final SparseVector vector

similarity

public final double similarity

SIMILARITY_COMPARATOR

public static final Comparator<Neighbor> SIMILARITY_COMPARATOR

Comparator to order neighbors by similarity.

Constructor Detail

Neighbor

public Neighbor(long u,
                SparseVector v,
                double sim)

Construct a new neighbor.

Parameters:

u - The neighbor's ID.

v - The neighbor's unnormalized rating vector.

sim - The neighbor's similarity to the query user.