• Full Name Full Name Comment goes here.
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  • Here is another example of a use of named graphs to capture assertional intent about the relation between tags:
    http://www-sop.inria.fr/members/Freddy.Limpens/?q=node/47
    http://ns.inria.fr/srtag/2009/01/09/srtag.html
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  • I think with the Info Service Ontology[1,2,3,4] you could address some of these issues, you've mentioned, at least the link back, where the graph came from/was retrieved from.
    Taking the definition of Information Service[3] both rdf:Graph and rdf:GraphStore could be a subset of is:InfoService. As I understand that rdf:Graph is a subset of rdf:GraphStore.

    Cheers,

    Bob

    [1] http://infoserviceonto.svn.sourceforge.net/viewvc/infoserviceonto/infoservice/trunk/rdf/infoservice.n3
    [2] http://infoserviceonto.svn.sourceforge.net/viewvc/infoserviceonto/infoservice/trunk/gfx/infoservice.gif
    [3] https://infoserviceonto.wordpress.com/2010/06/23/what-is-an-information-service/
    [4] http://infoserviceonto.svn.sourceforge.net/viewvc/infoserviceonto/infoservice/trunk/gfx/is_-_musicbrainz_example.gif
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  • 1. http://www-sop.inria.fr/edelweiss/fabien/docs/w3c/rdfsource/rdfsource.html
    http://purl.org/dc/elements/1.1/creator
    http://purl.org/dc/elements/1.1/title
    http://ns.inria.fr/fabien.gandon/foaf#me
    RDF Source
    http://xmlns.com/foaf/0.1/name
    http://www.w3.org/1999/02/22-rdf-syntax-ns#type
    http://xmlns.com/foaf/0.1/mbox
    mailto:fgandon@inria.fr
    Fabien Gandon
    http://xmlns.com/foaf/0.1/Person
    http://
    namethat graph!
    Fabien Gandon, Olivier Corby, ,
  • 2. preaching to the choir ?!?
  • 3. RDF needs necktiesseems more controversial
  • 4. provenance, source, origin, author,…
    creation date, age, use-by date,…
    accuracy, authentication, certification, validity, …
    context, assumption, modality, …
    dependencies, disjunction, negation, …
    access rights, copyrights, …
    location, society, culture, …
    ...informational context
  • 5. wecanquery…
    PREFIX dc: <http://purl.org/dc/elements/1.1/>
    PREFIX foaf: <http://xmlns.com/foaf/0.1/>
    SELECT *
    WHERE
    {
    GRAPH ?gphdoc { ?docdc:title ?title .
    ?docdc:creator ?author }
    GRAPH ?gphauthor { ?authorfoaf:name ?name }
    }
  • 6. wecannotname…
    • reification quads do not imply the triples, no link
    • 7. rdf:ID still at triple level and still no link
    • 8. document URI, ad-hoc, bad practice
    … naming is currently done outside RDF
    #me

    subject
    #name
    predicate
    #S
    #me
    #name
    "fabien"
    object
    "fabien"
    #me

    subject
    #name
    predicate
    #me
    #S
    "fabien"
    #name
    rdf:ID="S"
    object
    "fabien"

  • 9. named graphs, provenance and trust
    [Carroll, Bizer, Hayes, Stickler, 2005]
    communicate assertional intent and sign assertions
    embody social acts with some record
    name with URIs & graph RDFS class
    :G1 {_:Monica ex:name "Monica Murphy" .
    _:Monica ex:email <mailto:monica@murp.hy> .
    :G1 pr:disallowedUsagepr:Marketing }
    :G2 { :G1 ex:author :Chris .
    :G1 ex:date "2003-09-03"ˆˆxsd:date }
  • 10. nested typed graphs
    [Sowa, 84] [Mugnier & Chein, 96] [Chein & Mugnier, 08]
    “A typed nested conceptual graph and a coreference link (dashed line)” [Genest & Salvat, 98]
  • 11. RDF/XML syntax extension
    [Gandon, Bottolier, Corby, Durville , 2007]
    <rdf:Descriptionrdf:about="http://www- sop.inria.fr/edelweiss/fabien/docs/w3c/rdfsource/rdfsource.html"cos:graph="http://www.w3.org/biblio" >
    <dc:title>RDF Source</dc:title>
    <dc:creator>
    <foaf:Personrdf:about="http://ns.inria.fr/fabien.gandon/foaf#me"
    cos:graph="http://www.inria.fr/hr" >
    <foaf:name>FabienGandon</foaf:name>
    <foaf:mboxrdf:resource="mailto:fgandon@inria.fr"/>
    </foaf:Person>
    </dc:creator>
    </rdf:Description>
  • 12. before
    http://.../rdfsource.html
    dc:title
    dc:creator
    http://...#me
    RDF Source
    foaf:mbox
    rdf:type
    foaf:name
    mailto:fgandon@inria.fr
    Fabien Gandon
    foaf:Person
  • 13. after
    http://.../rdfsource.html
    dc:title
    http://www.w3.org/biblio
    dc:creator
    http://www.w3.org/biblio
    http://...#me
    RDF Source
    foaf:mbox
    rdf:type
    foaf:name
    http://www.inria.fr/hr
    http://www.inria.fr/hr
    http://www.inria.fr/hr
    mailto:fgandon@inria.fr
    Fabien Gandon
    foaf:Person
  • 14. e.g. social tagging
    sioc:has_creator
    http://.../tag23
    #buttersg88
    dc:date
    11/03/2008
    “nature”
    sioc:container
    http://www.flickr.com
  • 15. e.g. concurrent hypotheses
    context 2
    context 1
    context 3
    context 6
    context 4
    context 5


  • 16. e.g. tracing and backtracking
    source 2
    source 1
    source 1,2,3,4
    source1,2,3
    service 3
    service 4
  • 17. e.g.…
    temporal aspects in querying and reasoning.
    context of knowledge extraction (NLP).
    capture of points of view.
    distributed storage and query routing.
    security
    etc.
  • 18. names, plllleaaase,@TODO blank nodes, one triple in several graphs, backward compatibility, rdf:Graph & rdf:GraphStore// comments - RDF 1.1 not RDF 2.0 - Follow your nose for RDF and named graphs - RDF meta-model must remain domain independent to standardize a best practice there must be a practice in the first place
    Fabien Gandon, Olivier Corby, ,