Successfully reported this slideshow.
Your SlideShare is downloading. ×

Nice Tag Ontology : modeling tags as RDF named graphs

Advertisement

More Related Content

Advertisement

Related Books

Free with a 30 day trial from Scribd

See all

Nice Tag Ontology : modeling tags as RDF named graphs

  1. 1. iceTag ontology modeling tags as RDF named graphs Freddy Limpens, David Laniado Alexandre Monnin, Fabien Gandon
  2. 2. VoCamp Nice 2009
  3. 3. what is a tag? received wisdom says "it denotes a concept"
  4. 4. not quite! examples… ☺
  5. 5. a blank (inscribable) space on a material device tags: a blank (inscribable) space on an informational network
  6. 6. a label and a couple of URIs a reference to a resource (label) an access to its representation and its tags (URIs) http://www.flickr.com/2327219507/ tags:
  7. 7. current models assign a fixed form to tags but tags take on manifold forms
  8. 8. model different tag dimensions subject, sign, relation, … capture different tag usages comment, sort, diffuse, describe, rate, ... bridge existing models SCOT, MOAT, Tag Ontology, Nepomuk, …
  9. 9. named graphs [Carroll et al. 2005] to embody social acts, communicate assertional intent
  10. 10. “nature” (1) (2) (3) at least three parts in a tag
  11. 11. “nature” (1) (2) (3) a tag is a link between a resource and a sign
  12. 12. “nature” (1) (2) (3) picture shows “nature” place located “england” england” editing makes me ☺ at least three degrees of liberty
  13. 13. “nature” (1) identify the subject IRW: physical entity resource, web resource, conceptual resource… Halpin & Presutti (2009)
  14. 14. “nature” (2) sub-properties of hasSign extension of Golder & Huberman (2006), Sen et al.(2006)
  15. 15. “nature” (3) different signs symbol (text, URI), icon,…
  16. 16. http://.../tag23 “nature” tag actions captured/encapsulated in a named graph Carroll et al. (2005)
  17. 17. sioc:has_creator http://.../tag23 #buttersg88 dc:date 11/03/2008 “nature” sioc:container http://www.flickr.com describe the tag action as any other resource
  18. 18. rdf:type http://.../tag23 nt:ManualTag “nature” even type the tag action sioc:Item rdfg:Graph TagAction ManualTagAction AutoTagAction MachineTagAction IndividualTagAction CollectiveTagAction
  19. 19. http://.../tag23 … scot:hasTag #nature choose anyCommonTag, Newman's Tag Ontology… SCOT, MOAT, IRW, NAO, existing model
  20. 20. RDF source declaration 1. <irw:WebResource rdf:about ='http://www.yesand.com/' 2. cos:graph='http://mysocialsi.te/tag#7182904'> 3. <nicetag:isAbout>improvisation</nicetag:isAbout> 4. </irw:WebResource> 5. <nicetag:ManualTagAction rdf:about ='http://mysocialsi.te/tag #7182904'> 6. <dc:creator>Fabien Gandon</dc:creator> 7. <dc:date>2009-10-07T19:20:30.45+01:00</dc:date> 8. </nicetag:ManualTag>
  21. 21. SPARQL all the manual tags 1. SELECT ?t ?a ?g WHERE { 2. GRAPH ? tag { ?t ?a ?g } 3. ?tag rdf:type nicetag:ManualTagAction }
  22. 22. e. g.
  23. 23. e. g.
  24. 24. links !!!
  25. 25. summary tag actions as typed & named graphs + ontology rdf:type http://... nt:TagAction … resource RELATION sign … … …
  26. 26. http://ns.inria.fr/nicetag/2009/09/25/voc# n i c e dereferenciable t a g namespace

×