discovering semantic equivalence of people behind online profiles (red 2012 - eswc 2012)

Copyright 2011 Digital Enterprise Research Institute. All rights reserved.

Digital Enterprise Research Institute www.deri.ie

Enabling Networked Knowledge

Discovering Semantic Equivalence of People

behindOnline Profiles

Keith Cortis, Simon Scerri, Ismael Rivera, Siegfried Handschuh

REsource Discovery (RED), Workshop at ESWC 2012

27th May 2012



Motivation

Current situation: Personal data is

unnecessarily duplicated over different platforms

No possibility to merge or port such data

Separate handling of this data

Social Networking Sites as Walled Gardens – David Simonds



Problem Specification

No common standards exist for modelling profile data in online accounts

Personal data (known contacts and presence information) is dynamic and continuously changing



Objectives

Aim: User represented through one digital identity

Main Challenge: Discovery of semantic equivalence between contacts described in online profiles

Proposal: Use a comprehensive ontology framework for handling online profile data



di.me Ontology Framework



Related Work Comparison

Existing Profile Linking Approaches based on:o User’s friendso Specific Inverse Functional Properties (e.g. email

address)o Syntactic matching of all profile attributeso Semantic relatedness between text, depending on

Knowledge Bases (KB) such as Wikipedia Our Approach: Similarity measure based on user’s

Personal Information Model (PIM)

PIM



Approach (1)

User Profile Data

Ontology Mapping

Online Profile Resolution

Linguistic Analysis

Semantic Search

Extension

Ontology-enhanced Attribute

Weighting

A

B

D

Matching AttributesC1 3 42

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Syntactic Matching 2



Approach (2)

User Profile Data

Ontology Mapping


Linguistic Analysis

Semantic Search

Extension


Weighting

A

B

D


Dire

ct S

trin

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Indi

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Str

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Approach (3)

User Profile Data

Ontology Mapping


Linguistic Analysis

Semantic Search

Extension


Weighting

A

B

D


Dire

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trin

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Indi

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Str

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Approach (3)

Identity-related online profile information - NCO

Presence and online post data for the user – DLPO



Approach (3)

Account Ontology (DAO) – for modelling service account representations

NCODAODLPO

hasCustomAttribute

Contact

PersonContact

OrganizationContact

nie:DataObject

ContactGroup

belongsToGroup

geo:PointhasLocation

keyphoto

representative

soundblogUrl

foafUrl

hasEmailAddress

hasIMAccount

hasPhoneNumber

hasPostalAddress

websiteUrlrdfs:Resource

EmailAddress

PostalAddress

PhoneNumber

IMAccount

Account

LivePost

MultimediaPost

MessagePresencePost

xsd:string

userIDpassword

Credentials

hasCredentials

NamehasName

rdfs:labelnao:externalIdentifier

rdfs:label

source sourceWebDocumentPost



Approach (4)

User Profile Data

Ontology Mapping


Linguistic Analysis

Semantic Search

Extension


Weighting

A

B

D


Dire

ct S

trin

g M

atch

ing

Indi

rect

Str

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Mat

chin

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atch

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Approach (5)

User Profile Data

Ontology Mapping


Linguistic Analysis

Semantic Search

Extension


Weighting

A

B

D


Dire

ct S

trin

g M

atch

ing

Indi

rect

Str

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Mat

chin

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Valu

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atch

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Implementation

Transformation

Linguistic Analysis

Large KBGazetteer Lookup

PIM

ANNIE Information

Extraction System

Organisation

“DERI, Lower Dangan, Galway, Ireland”

Street City Country



Final Objective



Summary

Objectiveso Determination of

semantic equivalence between contacts described in online profiles

o Aggregated profile data is lifted onto a unique PIM representation and integrated in a super profile

Future Worko Integration of further

online accountso Semantic extension to

the syntactic-based profile attribute matching

o Definition of a metrico Analysis of online posts

from multiple accountso Evaluation of artefact

[email protected]

Thank you for your attention

discovering semantic equivalence of people behind online profiles (red 2012 - eswc 2012)

Technology

ieexisting profile

ieenabling networked

modelling profile data

handling online profile

knowledge bases

wikipediaour approach

online post data

online accounts personal