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fabien l. gandon
          analyzing

global


                  semantic

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




sociograms and analysis
Fabien
                       Mylène
Gérard




d (guillaume)=5

                          Michel
              Yvonne
Fabien
                                                  Mylène
                         Gérard
        knows



              d <familly>(guillaume)=3
colleague


                                                     Michel
                           parent
         sibling                         Yvonne


             brother   father   mother
    sister
social data                SemSNA Ontology

           FOAF, RELATIONSHIP, SIOC,         Domain
          DC, SKOS, SCOT, DOAP, MOAT        Ontologies
          RDF/S, OWL           RDFa         GRDDL

     Wrappers & web 2.0 APIs          XML       formats
SemSNA ontology
SPARQL + Extensions
social data                SemSNA Ontology

           FOAF, RELATIONSHIP, SIOC,         Domain
          DC, SKOS, SCOT, DOAP, MOAT        Ontologies
          RDF/S, OWL           RDFa         GRDDL

     Wrappers & web 2.0 APIs          XML        formats
D-in<type, length>(y) :=

select ?y count(?x) as ?degreeCentrality where {
    ?x $path ?y
    filter(match($path, star(param[type])))
    filter(pathLength($path) <= param[length])
} group by ?y
Semantic Social Network Analysis

                               SPARQL + Extensions
social data                SemSNA Ontology

           FOAF, RELATIONSHIP, SIOC,         Domain
          DC, SKOS, SCOT, DOAP, MOAT        Ontologies
          RDF/S, OWL           RDFa         GRDDL

     Wrappers & web 2.0 APIs          XML        formats
[web science 09]




long tail distribution of the betweenness centralities
                                                                     [Freeman, 1979]
50 000 projections on 2020 FOAF profiles extracted from flickr.com

Research contract with a Web 2.0 company : 10 000 profiles, 600 000 relations,
1.4 Go RDF in main memory using CORESE
• enterprise social networking
• business intelligence, watching, monitoring
• communities of interest, of practice, of experts
isicil.inria.fr
a point made
at the linked data workshop 2009…
unifying identities
integration & consolidation of data
owl:sameAs
             =

Fabien                Bafien
owl:differentFrom
                ≠
Magic                        Semantic
Hagrid                       Hagrid
http://fabien.info

          analyzing

global


                  semantic

                      graphs
 social

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Analyzing Global Semantic Social Networks

  • 1. fabien l. gandon analyzing global semantic graphs social
  • 2. beetweenness centrality reveals brokers « A place for good ideas » [Burt 1992] [Burt 2004] sociograms and analysis
  • 3. Fabien Mylène Gérard d (guillaume)=5 Michel Yvonne
  • 4. Fabien Mylène Gérard knows d <familly>(guillaume)=3 colleague Michel parent sibling Yvonne brother father mother sister
  • 5. social data SemSNA Ontology FOAF, RELATIONSHIP, SIOC, Domain DC, SKOS, SCOT, DOAP, MOAT Ontologies RDF/S, OWL RDFa GRDDL Wrappers & web 2.0 APIs XML formats
  • 7. SPARQL + Extensions social data SemSNA Ontology FOAF, RELATIONSHIP, SIOC, Domain DC, SKOS, SCOT, DOAP, MOAT Ontologies RDF/S, OWL RDFa GRDDL Wrappers & web 2.0 APIs XML formats
  • 8. D-in<type, length>(y) := select ?y count(?x) as ?degreeCentrality where { ?x $path ?y filter(match($path, star(param[type]))) filter(pathLength($path) <= param[length]) } group by ?y
  • 9. Semantic Social Network Analysis SPARQL + Extensions social data SemSNA Ontology FOAF, RELATIONSHIP, SIOC, Domain DC, SKOS, SCOT, DOAP, MOAT Ontologies RDF/S, OWL RDFa GRDDL Wrappers & web 2.0 APIs XML formats
  • 10. [web science 09] long tail distribution of the betweenness centralities [Freeman, 1979] 50 000 projections on 2020 FOAF profiles extracted from flickr.com Research contract with a Web 2.0 company : 10 000 profiles, 600 000 relations, 1.4 Go RDF in main memory using CORESE
  • 11. • enterprise social networking • business intelligence, watching, monitoring • communities of interest, of practice, of experts isicil.inria.fr
  • 12. a point made at the linked data workshop 2009…
  • 13. unifying identities integration & consolidation of data
  • 14. owl:sameAs = Fabien Bafien
  • 15. owl:differentFrom ≠ Magic Semantic Hagrid Hagrid
  • 16. http://fabien.info analyzing global semantic graphs social