slides about the "Nice Tag Ontology" presented at Social Network Interoperability workshop ASWC 2009.

1. iceTag ontology
modeling tags
as RDF named graphs
Freddy Limpens, David Laniado
Alexandre Monnin, Fabien Gandon

2. VoCamp Nice 2009

3. what is a tag?
received wisdom says "it denotes a concept"

4. not quite!
examples…
☺

5. a blank (inscribable) space
on a material device
tags:
a blank (inscribable) space
on an informational network

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. current models assign a fixed form to tags but
tags take on manifold forms

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. named graphs [Carroll et al. 2005]
to embody social acts, communicate assertional intent

10. “nature”
(1) (2) (3)
at least
three parts in a tag

11. “nature”
(1) (2) (3)
a tag is
a link between a resource and a sign

12. “nature”
(1) (2) (3)
picture shows
“nature”
place located
“england”
england”
editing makes me
☺
at least
three degrees of liberty

13. “nature”
(1)
identify the subject
IRW: physical entity resource, web resource, conceptual resource…
Halpin & Presutti (2009)

14. “nature”
(2)
sub-properties of hasSign
extension of Golder & Huberman (2006), Sen et al.(2006)

15. “nature”
(3)
different signs
symbol (text, URI), icon,…

16. http://.../tag23
“nature”
tag actions
captured/encapsulated in a named graph
Carroll et al. (2005)

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. rdf:type
http://.../tag23 nt:ManualTag
“nature”
even type the tag action
sioc:Item rdfg:Graph
TagAction
ManualTagAction AutoTagAction MachineTagAction IndividualTagAction CollectiveTagAction

19. http://.../tag23 …
scot:hasTag #nature
choose anyCommonTag, Newman's Tag Ontology…
SCOT, MOAT, IRW, NAO,
existing model

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. SPARQL all the manual tags
1. SELECT ?t ?a ?g WHERE {
2. GRAPH ? tag { ?t ?a ?g }
3. ?tag rdf:type nicetag:ManualTagAction }

22. e. g.

23. e. g.

24. links !!!

25. summary
tag actions as typed & named graphs + ontology
rdf:type
http://... nt:TagAction
…
resource RELATION
sign …
…
…

26. http://ns.inria.fr/nicetag/2009/09/25/voc#
n i c e dereferenciable
t a g namespace