LeveragingSocial

datawith

Semantics

W3C Workshop on the Future of Social Networking15-16 January 2009, BarcelonaFabien Gandon, INRIA

RDF

RDFSOWL

rules

networks

profiles

tagsforum

mails

Web 2.0

inference

approximation

query

notify monitor

foster

SPARQL

Web linkschats

beetweenness centrality reveals brokers« A place for good ideas » [Burt 1992] [Burt 2004]

sociograms and analysis

W3C

W3C

W3C®

graphs, graphs, graphs, …

FabienFabien

MarcoMarco GuillaumeGuillaume

NicolasNicolas

MichelMichel

RémiRémi

social network analysis

FabienFabiencreatorcreator

authorauthor

ManMan

typedoc.htmldoc.html

author

Semantic web is not antisocialSemantic web is not antisocial

PersonPerson

ManMan

sub property sub class

semantic web

),(;)( pxrelxpdin

4)( Guillaumedin

creator

PersonPerson

type

classic SNA on semantic web graphs

RDFgraph

non-typed graphs

leveraging the full semantic web stack

SPARQL + ExtensionsSPARQL + Extensions

Social Network Analysis Ontology Social Network Analysis Ontology

FOAF, RELATIONSHIP, SIOC,

DC, SKOS, SCOT, DOAP, MOAT

FOAF, RELATIONSHIP, SIOC,

DC, SKOS, SCOT, DOAP, MOATDomain

Ontologies

Domain

Ontologies

RDF/S, OWL RDF/S, OWL GRDDL GRDDL RDFa RDFa

µformatsµformatsXMLXMLWrappers & web 2.0 APIsWrappers & web 2.0 APIs

social data

Semantic Social Network AnalysisSemantic Social Network Analysis

[PhD Guillaume Erétéo]

ADD {?y semsna:hasInDegree _:b0 _:b0 semsna:forProperty param[type] _:b0 rdf:value ?indegree _:b0 semsna:hasLength param[length]

}SELECT ?y count(?x) as ?indegree {?x $path ?yfilter(match($path, star(param[type])))filter(pathLength($path)<= param[length])

} group by ?y

Broker!parameterized in-degree

)(d olengthtype, yin

[PhD Guillaume Erétéo]

long tail distribution of the betweenness centralities50 000 projections on 2020 FOAF profiles extracted from flickr.com [Freeman, 1979]

[PhD Guillaume Erétéo]

social

semantic

graphs

global

other graphs available too...

e.g. capture bookmarks and their tags

co-tags extracted from delicious for “ademe”6054 bookmarks, 16 users, 5153 tags, 5969 resources

[PhD Freddy Limpens]

global giant graphlinking users, actions, knowledge, companies, etc.

#Freddy

#bk81

hasBookmark

hasTag#tag27

industry

hasLabel

#Fabien

#bk34

#tag92

industries

hasBookmark

hasLabelhasTag

shareInterest

link amaximumof graphs

closingmessages

open issues

scale security

open yourmobile web

openyour data

mobileweb ok

+ =

some bridges already exist...POWDER : information about web resource(s) without retrieving the resource(s)

Vocabularies : Device Description Vocabulary (MWI), Delivery Context Ontology (UWA), CC/PP Structure and Vocabularies

Semantic Web applications on phones: DBPedia Mobile, i-MoCo (250 million triples)

ISICIL projectsocial web applications and semantic web frameworks for corporate applications.• enterprise social networking;• business intelligence, watching, monitoring;• communities of interest, of practice;• web 2.0 & corporate processes integration;• trust, privacy, confidentiality.

http://www.slideshare.nethttp://www.slideshare.net

Fabien GandonFabien Gandon

Fabien.Gandon@sophia.inria.frFabien.Gandon@sophia.inria.fr

http://ns.inria.fr/fabien.gandon/foaf#mehttp://ns.inria.fr/fabien.gandon/foaf#me

PersonPerson

typename

email

slidesOn

identifies