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MOAT
Meaning Of A Tag
Alexandre Passant - http://apassant.net
  LaLIC, Université Paris-Sorbonne

         ESWC Linked Data BOF
            1st June 2008
Goals
•   A solution to solve free-tagging issues (ambiguity,
    heterogeneity, lack of orgnisation)

•   An ontology to represent global and local meaning
    of tags in a machine-understandable way, using
    URIs of LOD resources

•   A framework to assign and share meanings to tags
    in a collaborative and open way

•   A process to create Linked Data from simple
    tagging actions
Ontology
                                                moat:Tag




                                                                                 moat:hasMeaning
           tags:associatedTag
                                                     Resource URI
                                                                                                            moat:Meaning
                            moat:tagMeaning
                                                                        moat:meaningURI
 tags:RestrictedTagging

                                                                                      moat:Meaning
                                tags:taggedBy
                                                                         foaf:maker
tags:taggedResource
                                                           foaf:Agent
                                Resource                                                       foaf:Agent



                                Local meaning
                                                                             Global meanings
Global Meaning
<http://tags.moat-project.org/tag/paris> a moat:Tag ;
 moat:name quot;parisquot; ;
 moat:hasMeaning [
  a moat:Meaning ;
  moat:meaningURI <http://sws.geonames.org/2988507/> ;
  foaf:maker <http://example.org/alex/>
 ];
 moat:hasMeaning [
  a moat:Meaning ;
  moat:meaningURI dbpedia:Paris_Hilton ;
  foaf:maker <http://myblog.net/user.rdf#me> ;
  foaf:maker <http://example.org/alex/>
 ].
Local Meaning
tags:RestrictedTagging                                        http://tags.moat-
                                                            project.org/tag/paris

        rdf:type                 tags:associatedTag
                                                                tags:name

  http://example.org/
       tagging/1                                                   paris


                                 moat:tagMeaning
    tags:taggedBy
                                                          http://sws.geonames.org/
                    tags:taggedResource                            2988507/


http://example.org/alex


                                    http://example.org/
                                           post/1
Architecture
                  User creates content and tag it                                           Client queries the MOAT server




                                                          <http://sws.geonames.org/4402452/>                        Server returns the set
                                                                                                                  for global meaning URIs
                     User chooses local meaning URI       <http://sws.geonames.org/2988507/>
                                                             <http://dbpedia.org/resource/Paris_Hilton>




                                                                                                             tags:associatedTag
User saves the content
                                                                                           http://example.org/                      http://tags.moat-
                                                                                                tagging/1                         project.org/tag/paris

                                                                                                                 moat:tagMeaning

                                                        Content enters
                                                                                          tags:taggedResource                 http://sws.geonames.org/
                                                      the Semantic Web                                                                 2988507/
                                                                                                                    tags:taggedBy
                                                                                           http://example.org/
                                                                                                  post/1
                                                                                                                         http://example.org/alex
Drupal Client
LOD benefits
                                                                          http://tags.moat-
                                                                        project.org/tag/paris
                                        tags:associatedTag

            http://example.org/                                             tags:name
                 tagging/1

                                                                               paris

                                         moat:tagMeaning
         tags:taggedBy


                      tags:taggedResource                             http://sws.geonames.org/
                                                                               2988507/
http://example.org/alex

                                                         sioc:topic

                                                                           geonames:parentFeature
                                  http://example.org/
                                         post/1



                                                                                 http://sws.geonames.org/
                                                                                          3017382/
                                    http://example.org/julie




    http://tags.moat-
                                                                         moat:tagMeaning
  project.org/tag/france                        tags:taggedBy

                           tags:associatedTag

        tags:name                                       http://example.org/
                                                             tagging/2                     sioc:topic


          france
                                                                       tags:taggedResource



                                                                                       http://example.org/
                                                                                              post/2
http://moat-project.org

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MOAT: Meaning Of A Tag

  • 1. MOAT Meaning Of A Tag Alexandre Passant - http://apassant.net LaLIC, Université Paris-Sorbonne ESWC Linked Data BOF 1st June 2008
  • 2. Goals • A solution to solve free-tagging issues (ambiguity, heterogeneity, lack of orgnisation) • An ontology to represent global and local meaning of tags in a machine-understandable way, using URIs of LOD resources • A framework to assign and share meanings to tags in a collaborative and open way • A process to create Linked Data from simple tagging actions
  • 3. Ontology moat:Tag moat:hasMeaning tags:associatedTag Resource URI moat:Meaning moat:tagMeaning moat:meaningURI tags:RestrictedTagging moat:Meaning tags:taggedBy foaf:maker tags:taggedResource foaf:Agent Resource foaf:Agent Local meaning Global meanings
  • 4. Global Meaning <http://tags.moat-project.org/tag/paris> a moat:Tag ; moat:name quot;parisquot; ; moat:hasMeaning [ a moat:Meaning ; moat:meaningURI <http://sws.geonames.org/2988507/> ; foaf:maker <http://example.org/alex/> ]; moat:hasMeaning [ a moat:Meaning ; moat:meaningURI dbpedia:Paris_Hilton ; foaf:maker <http://myblog.net/user.rdf#me> ; foaf:maker <http://example.org/alex/> ].
  • 5. Local Meaning tags:RestrictedTagging http://tags.moat- project.org/tag/paris rdf:type tags:associatedTag tags:name http://example.org/ tagging/1 paris moat:tagMeaning tags:taggedBy http://sws.geonames.org/ tags:taggedResource 2988507/ http://example.org/alex http://example.org/ post/1
  • 6. Architecture User creates content and tag it Client queries the MOAT server <http://sws.geonames.org/4402452/> Server returns the set for global meaning URIs User chooses local meaning URI <http://sws.geonames.org/2988507/> <http://dbpedia.org/resource/Paris_Hilton> tags:associatedTag User saves the content http://example.org/ http://tags.moat- tagging/1 project.org/tag/paris moat:tagMeaning Content enters tags:taggedResource http://sws.geonames.org/ the Semantic Web 2988507/ tags:taggedBy http://example.org/ post/1 http://example.org/alex
  • 8. LOD benefits http://tags.moat- project.org/tag/paris tags:associatedTag http://example.org/ tags:name tagging/1 paris moat:tagMeaning tags:taggedBy tags:taggedResource http://sws.geonames.org/ 2988507/ http://example.org/alex sioc:topic geonames:parentFeature http://example.org/ post/1 http://sws.geonames.org/ 3017382/ http://example.org/julie http://tags.moat- moat:tagMeaning project.org/tag/france tags:taggedBy tags:associatedTag tags:name http://example.org/ tagging/2 sioc:topic france tags:taggedResource http://example.org/ post/2