org.ranksys.core.preference

Interface PreferenceSampler<U,I>

Type Parameters:

U - user type

I - item type

All Superinterfaces:

ItemIndex<I>, UserIndex<U>

All Known Subinterfaces:

FastPreferenceSampler<U,I>

All Known Implementing Classes:

AbstractFastPreferenceSampler

public interface PreferenceSampler<U,I>
extends UserIndex<U>, ItemIndex<I>

Preference sampler, for stochastic algorithms.

Author:

Saúl Vargas (Saul.Vargas@mendeley.com)

Method Summary

Modifier and Type	Method and Description
Stream<org.jooq.lambda.tuple.Tuple2<U,? extends IdPref<I>>>	sample() Get a stream of randomly sample user-item preferences.

Methods inherited from interface es.uam.eps.ir.ranksys.core.index.UserIndex

containsUser, getAllUsers, numUsers

Methods inherited from interface es.uam.eps.ir.ranksys.core.index.ItemIndex

containsItem, getAllItems, numItems

Method Detail

sample

Stream<org.jooq.lambda.tuple.Tuple2<U,? extends IdPref<I>>> sample()

Get a stream of randomly sample user-item preferences.

Returns:

stream of user-item preferences