org.lenskit.knn.user

Class UserSnapshot

java.lang.Object

org.lenskit.knn.user.UserSnapshot

All Implemented Interfaces:

Serializable

@Shareable
 @ThreadSafe
 @DefaultProvider(value=UserSnapshot.Builder.class)
public class UserSnapshot
extends Object
implements Serializable

User snapshot used by SnapshotNeighborFinder.

Since:

2.1

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UserSnapshot.Builder

Method Summary

Modifier and Type	Method and Description
LongSet	getItemUsers(long item)
ImmutableSparseVector	getNormalizedUserVector(long user)
ImmutableSparseVector	getUserVector(long user)

Methods inherited from class java.lang.Object

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

Method Detail

getUserVector

public ImmutableSparseVector getUserVector(long user)

getNormalizedUserVector

public ImmutableSparseVector getNormalizedUserVector(long user)

getItemUsers

public LongSet getItemUsers(long item)