org.lenskit.eval.traintest

Class TestUser

java.lang.Object

org.lenskit.eval.traintest.TestUser

public class TestUser
extends Object

A test user’s data.

See Also:

TestUserBuilder

Constructor Summary

Constructors

Constructor and Description
TestUser(Entity user, List<Rating> train, List<Rating> test) Construct a new test user object.

Method Summary

Modifier and Type	Method and Description
LongSet	getSeenItems() The set of items this user has seen in either training or test.
List<Rating>	getTestHistory() Return this user’s test history.
LongSet	getTestItems()
Long2DoubleMap	getTestRatings() Get the user’s test ratings.
List<Rating>	getTrainHistory() Return this user’s training history.
LongSet	getTrainItems()
long	getUserId() Get the ID of this user.
static TestUserBuilder	newBuilder() Make a builder for test users.

Methods inherited from class java.lang.Object

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

Constructor Detail

TestUser

public TestUser(Entity user,
                List<Rating> train,
                List<Rating> test)

Construct a new test user object.

Parameters:

train - The training history.

test - The test history.

Method Detail

newBuilder

public static TestUserBuilder newBuilder()

Make a builder for test users.

Returns:

A new builder for a test user object.

getUserId

public long getUserId()

Get the ID of this user.

Returns:

The user’s ID.

getTrainHistory

public List<Rating> getTrainHistory()

Return this user’s training history.

Returns:

The history of the user from the training/query set.

getTrainItems

public LongSet getTrainItems()

getTestHistory

public List<Rating> getTestHistory()

Return this user’s test history.

Returns:

The history of the user from the test set.

getTestItems

public LongSet getTestItems()

getSeenItems

public LongSet getSeenItems()

The set of items this user has seen in either training or test.

Returns:

The set of all seen items (training and test).

getTestRatings

public Long2DoubleMap getTestRatings()

Get the user’s test ratings. Summarizes the user’s ratings from the history.

Returns:

The user’s ratings for the test items.