Package es.uam.eps.ir.relison.links.data.letor.sampling

Class DistanceTwoLinkPredictionIndividualSampler<U>

java.lang.Object

es.uam.eps.ir.relison.links.data.letor.sampling.AbstractIndividualSampler<U>

es.uam.eps.ir.relison.links.data.letor.sampling.DistanceTwoLinkPredictionIndividualSampler<U>

Type Parameters:

U - Type of the users.

All Implemented Interfaces:

IndividualSampler<U>

public class DistanceTwoLinkPredictionIndividualSampler<U>
extends AbstractIndividualSampler<U>

Samples all the links created at distance two from the user in a test graph, and the same amount of links at distance two which have not been created.

Field Summary

Fields

Modifier and Type	Field	Description
private Graph<U>	testGraph	The graph to check the positive / negative examples
private EdgeOrientation	uSel	Edge orientation for the neighbors of the origin node.
private EdgeOrientation	vSel	Edge orientation for the neighbors of the destination nodes.

Fields inherited from class es.uam.eps.ir.relison.links.data.letor.sampling.AbstractIndividualSampler

graph

Constructor Summary

Constructors

Constructor	Description
DistanceTwoLinkPredictionIndividualSampler(Graph<U> graph, Graph<U> testGraph, EdgeOrientation uSel, EdgeOrientation vSel)	Constructor.

Method Summary

Modifier and Type	Method	Description
java.util.Set<U>	sampleUsers(U u, java.util.function.Predicate<U> filter)	Given a user, obtains the sample.

Methods inherited from class java.lang.Object

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

Field Details

uSel

private final EdgeOrientation uSel

Edge orientation for the neighbors of the origin node.

vSel

private final EdgeOrientation vSel

Edge orientation for the neighbors of the destination nodes.

testGraph

private final Graph<U> testGraph

The graph to check the positive / negative examples

Constructor Details

DistanceTwoLinkPredictionIndividualSampler

public DistanceTwoLinkPredictionIndividualSampler(Graph<U> graph, Graph<U> testGraph, EdgeOrientation uSel, EdgeOrientation vSel)

Constructor.

Parameters:

graph - the graph.

testGraph - the test graph containing the set of positive links.

uSel - edge orientation for the neighbors of the origin node.

vSel - edge orientation for the neighbors of the selected nodes.

Method Details

sampleUsers

public java.util.Set<U> sampleUsers(U u, java.util.function.Predicate<U> filter)

Description copied from interface: IndividualSampler

Given a user, obtains the sample.

Parameters:

u - the parameter.

filter - a filter for the sample

Returns:

the set of sampled users, with their relevance / weight.