Modeling Tags as RDF Named Graphs

•

14 likes•3,745 views

Fabien Gandon

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

Technology Education

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

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

a blank (inscribable) space
on a material device

tags:

a blank (inscribable) space
on an informational network

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:

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

model different tag dimensions
subject, sign, relation, …

capture different tag usages
comment, sort, diffuse, describe, rate, ...

bridge existing models
SCOT, MOAT, Tag Ontology, Nepomuk, …

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

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

“nature”
(1) (2) (3)

a tag is
a link between a resource and a sign

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

“nature”
(1)

identify the subject
IRW: physical entity resource, web resource, conceptual resource…
Halpin & Presutti (2009)

“nature”
(2)

sub-properties of hasSign

extension of Golder & Huberman (2006), Sen et al.(2006)

“nature”
(3)

different signs
symbol (text, URI), icon,…

http://.../tag23

“nature”

tag actions
captured/encapsulated in a named graph
Carroll et al. (2005)

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

rdf:type
http://.../tag23 nt:ManualTag

“nature”

even type the tag action
sioc:Item rdfg:Graph

TagAction

ManualTagAction AutoTagAction MachineTagAction IndividualTagAction CollectiveTagAction

http://.../tag23 …

scot:hasTag #nature

choose anyCommonTag, Newman's Tag Ontology…
SCOT, MOAT, IRW, NAO,
existing model

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>

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

summary
tag actions as typed & named graphs + ontology

rdf:type
http://... nt:TagAction

…

resource RELATION
sign …
…
…

http://ns.inria.fr/nicetag/2009/09/25/voc#

n i c e dereferenciable
t a g namespace

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Modeling Tags as RDF Named Graphs

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