Package eu.h2020.helios_social.modules.socialgraphmining.GNN

Class CentralizedGNNMiner

java.lang.Object

eu.h2020.helios_social.modules.socialgraphmining.SocialGraphMiner

eu.h2020.helios_social.modules.socialgraphmining.GNN.CentralizedGNNMiner

public class CentralizedGNNMiner
extends SocialGraphMiner

This class provides an implementation of a SocialGraphMiner based on a Graph Neural Network (GNN) architecture. Its parameters can be adjusted using a number of setter methods.

Author:

Emmanouil Krasanakis

Nested Class Summary

Nested classes/interfaces inherited from class eu.h2020.helios_social.modules.socialgraphmining.SocialGraphMiner

SocialGraphMiner.InteractionType, SocialGraphMiner.SocialGraphMinerParameters

Constructor Summary

Constructors

Constructor	Description
CentralizedGNNMiner(eu.h2020.helios_social.core.contextualegonetwork.ContextualEgoNetwork contextualEgoNetwork)

Method Summary

Modifier and Type	Method	Description
SocialGraphMiner.SocialGraphMinerParameters	constructModelParameterObject(eu.h2020.helios_social.core.contextualegonetwork.Interaction interaction)
GNNMiner	getBaseMiner()
void	newInteractionParameters(eu.h2020.helios_social.core.contextualegonetwork.Interaction interaction, SocialGraphMiner.SocialGraphMinerParameters neighborModelParameters, SocialGraphMiner.InteractionType interactionType)
double	predictNewInteraction(eu.h2020.helios_social.core.contextualegonetwork.Context context, eu.h2020.helios_social.core.contextualegonetwork.Node destinationNode)	Predicts the weight of performing a SEND interaction between the given context's ego and a destination node within a given context.
java.util.HashMap<eu.h2020.helios_social.core.contextualegonetwork.Node,java.lang.Double>	recommendInteractions(eu.h2020.helios_social.core.contextualegonetwork.Context context)	Calls SocialGraphMiner.predictNewInteraction(Context, Node) to score the likelihood of interacting with all nodes of the given context.
void	setReferenceNode(eu.h2020.helios_social.core.contextualegonetwork.Node node)

Methods inherited from class java.lang.Object

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

Methods inherited from class eu.h2020.helios_social.modules.socialgraphmining.SocialGraphMiner

getContextualEgoNetwork, getModelParameterObject, getModelParameters, newInteraction, setSendPermision

Constructor Detail

CentralizedGNNMiner

public CentralizedGNNMiner(eu.h2020.helios_social.core.contextualegonetwork.ContextualEgoNetwork contextualEgoNetwork)

Method Detail

getBaseMiner

public GNNMiner getBaseMiner()

setReferenceNode

public void setReferenceNode(eu.h2020.helios_social.core.contextualegonetwork.Node node)

newInteractionParameters

public void newInteractionParameters(eu.h2020.helios_social.core.contextualegonetwork.Interaction interaction,
                                     SocialGraphMiner.SocialGraphMinerParameters neighborModelParameters,
                                     SocialGraphMiner.InteractionType interactionType)

Specified by:

newInteractionParameters in class SocialGraphMiner

constructModelParameterObject

public SocialGraphMiner.SocialGraphMinerParameters constructModelParameterObject(eu.h2020.helios_social.core.contextualegonetwork.Interaction interaction)

predictNewInteraction

public double predictNewInteraction(eu.h2020.helios_social.core.contextualegonetwork.Context context,
                                    eu.h2020.helios_social.core.contextualegonetwork.Node destinationNode)

Description copied from class: SocialGraphMiner

Predicts the weight of performing a SEND interaction between the given context's ego and a destination node within a given context. This method should typically return values in the [0,1] range, where higher values correspond to more likely interactions.

Specified by:

predictNewInteraction in class SocialGraphMiner

Parameters:

context - The context in which to perform the prediction.

destinationNode - The destination node of the interaction.

Returns:

The weight of performing the interaction (higher values are more likely).

recommendInteractions

public java.util.HashMap<eu.h2020.helios_social.core.contextualegonetwork.Node,java.lang.Double> recommendInteractions(eu.h2020.helios_social.core.contextualegonetwork.Context context)

Description copied from class: SocialGraphMiner

Calls SocialGraphMiner.predictNewInteraction(Context, Node) to score the likelihood of interacting with all nodes of the given context.

Overrides:

recommendInteractions in class SocialGraphMiner

Parameters:

context - The context for which to recommend interactions.

Returns:

A hash map of node scores (larger is more likely to occur.