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

Interface RelevanceModel.UserRelevanceModel<U,I>

Type Parameters:

U - type of the users

I - type of the items

All Superinterfaces:

UserModel.Model<U>

All Known Subinterfaces:

IdealRelevanceModel.UserIdealRelevanceModel<U,I>

All Known Implementing Classes:

ERRIA.ERRRelevanceModel.UserERRRelevanceModel, NDCG.NDCGRelevanceModel.UserNDCGRelevanceModel

Enclosing class:

RelevanceModel<U,I>

public static interface RelevanceModel.UserRelevanceModel<U,I>
extends UserModel.Model<U>

User-specific relevance models.

Method Summary

Modifier and Type	Method and Description
double	gain(I item) Gain obtained by recommending the item.
boolean	isRelevant(I item) Determines whether an item is relevant to the user or not

Method Detail

isRelevant

boolean isRelevant(I item)

Determines whether an item is relevant to the user or not

Parameters:

item - item to be judged as relevant

Returns:

true if the item is relevant, false otherwise

gain

double gain(I item)

Gain obtained by recommending the item. Should be typically positive if the item is relevant, and 0 otherwise.

Parameters:

item - item whose gain is calculated

Returns:

numerical gain