es.uam.eps.ir.ranksys.metrics.rel

Class RelevanceModel<U,I>

java.lang.Object

es.uam.eps.ir.ranksys.core.model.UserModel<U>

es.uam.eps.ir.ranksys.metrics.rel.RelevanceModel<U,I>

Type Parameters:

U - type of the users

I - type of the items

Direct Known Subclasses:

BackgroundBinaryRelevanceModel, ERRIA.ERRRelevanceModel, IdealRelevanceModel, NoRelevanceModel

public abstract class RelevanceModel<U,I>
extends UserModel<U>

Relevance model: deciding when an item is relevant to a user and the gain obtained for being recommended.

Author:

Saúl Vargas (saul.vargas@uam.es), Pablo Castells (pablo.castells@uam.es)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RelevanceModel.UserRelevanceModel<U,I> User-specific relevance models.

Nested classes/interfaces inherited from class es.uam.eps.ir.ranksys.core.model.UserModel

UserModel.Model<U>

Constructor Summary

Constructors

Constructor and Description
RelevanceModel() No caching constructor.
RelevanceModel(boolean caching, Stream<U> users) Full constructor: allows to specify whether to cache the user relevance models and for which users.
RelevanceModel(Stream<U> users) Caching constructor.

Method Summary

Modifier and Type	Method and Description
protected abstract RelevanceModel.UserRelevanceModel<U,I>	get(U user) Calculates the user model for user u.
RelevanceModel.UserRelevanceModel<U,I>	getModel(U user) Returns the user model for user u.

Methods inherited from class es.uam.eps.ir.ranksys.core.model.UserModel

initialize

Methods inherited from class java.lang.Object

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

Constructor Detail

RelevanceModel

public RelevanceModel(boolean caching,
                      Stream<U> users)

Full constructor: allows to specify whether to cache the user relevance models and for which users.

Parameters:

caching - are the user relevance models cached?

users - users whose relevance models are cached

RelevanceModel

public RelevanceModel()

No caching constructor.

RelevanceModel

public RelevanceModel(Stream<U> users)

Caching constructor.

Parameters:

users - users whose relevance models are cached

Method Detail

get

protected abstract RelevanceModel.UserRelevanceModel<U,I> get(U user)

Description copied from class: UserModel

Calculates the user model for user u.

Specified by:

get in class UserModel<U>

Parameters:

user - the user

Returns:

a user model

getModel

public RelevanceModel.UserRelevanceModel<U,I> getModel(U user)

Description copied from class: UserModel

Returns the user model for user u.

Overrides:

getModel in class UserModel<U>

Parameters:

user - the user

Returns:

a user model