Second Meeting of the IFIP Working Group 12.7 on Social Networking Semantics and Collective Intelligence / VU University, Amsterdam / 26th April 2012

1. Lots of sioc data, now what?
image from tinyurl.com/siocfrost

2. Data silos on the social web
image from pidgintech.com

3. Can be linked
via semantics

4. Social Semantic Web

5. Two-way street: semantic web
can help social web, vice versa
• Can Use semantic web to describe people,
content objects and the connections that
bind them all together so that social sites
can interoperate via semantics
• In the other direction, object-centered
social websites can serve as rich social
data sources for semantic applications
image from tinyurl.com/highway2

6. Semantically-Interlinked Online
Communities (SIOC)
• Goal of the SIOC ontology is to address
interoperability issues on the Social Web
– sioc-project.org
– W3c member submission in 2007
– SIOC has been adopted in a framework of
100 applications or modules deployed on
hundreds of sites
– Web 2.0, enterprise info integ, HCLS, e-gov
image from tinyurl.com/friendship2

8. Some of the SIOC core ontology
classes and properties

10. Sioc food chain

11. Some applications using sioc

12. RDFA in drupal 7
• Drupal cms used by 2 percent of all sites
• drupal 7 release has semantic web
support built-in
• Rdfa (sioc, foaf, dublin core, skos) data
for blog posts, forums, etc.
• Video at www.semantic-drupal.com
image from tinyurl.com/drupaper

13. Rdfa on newsweek.com

14. An ontology stack for the social
semantic web

15. Distributed
Architecture
www.Smob.me

16. Sioc can be used to...
• ...provide a layer of rdfa metadata from
a social website, e.g. to enhance search
results >> superceded by schema.org?
• ...get a Complete representation/xml
dump of a social website (export, import)
• ...be a native format for social websites
• ...do other stuff; just imagine!
image from tinyurl.com/orionw

17. So…
HOW MUCH SIOC DATA IS OUT THERE?
images (this one and later backgrounds) from publicdomainpictures.net

18. Sindice 2011
• Trec 2011 dataset
• From 270k SLDs
– data.sindice.com/
trec2011/statistics.html
• Top 10 classes plus some
of the social semantic
web ones >>

19. Sindice 2012: classes
• Total instances of sioc classes: 7.7M
– Up 200k in three months
• Most occurences: sioc:Item (2.2m)
– Followed by:
• UserAccount (1.6m), Microblogpost (1.3m), Post
(800k), user (700k), comment (400k)...
– Note: 1 billion foaf:Person instances!!!
• Used on most [distinct] sites:
– Item (7k), useraccount (7k), post (3k)...

20. Sindice 2012: predicates
• Total instances of sioc predicates: 22.5M
– Up 400k in three months
• Most occurences: sioc:follows (4.6m)
– Followed by:
• topic (4m), account_of (3.5m), has_creator
(2.7m), links_to (1.5m), has_discussion (1.3m)...
• Used on most [distinct] sites:
– Has_creator (8k), num_replies (7k), name
(2k), account_of (1.5k), reply_of (1.5k)...

21. Sindice 2012: namespaces
• Sioc data is being generated from 10k
distinct domains (2k slds) (plus 2k
domains for the sioc types module)
– Increasing by about 100 domains a month
– No doubt helped by drupal!
• Foaf data is being generated from 3M
distinct domains (100k slds)
– Increasing by over 1000 domains a month

22. Commoncrawl
• Muehleisen and bizer
– Ldow 2012 @ www 2012
• 1.5 billion web pages
• 3 billion RDF quads
• Top 20 rdfa types >>

23. WE HAVE MADE ALL THIS DATA, NOW
DREAM ABOUT THE USEFUL APPLICATIONS!

24. Make A giant brain(-storm!)
• Distributed conversation navigator
• Comment search engine for the a in q&a
• Expert finding applications galore
...
– Be cognisant of the huge growth in social
semantic web data being provided by the
adopters of schema.org and its new terms

25. Sioc-related initiatives

26. Brainstorm ontology

27. Sioc for e-participation
• Rdf-powered e-participation platform
– To be Based on wordpress+native rdf store
• Will Allow citizen discussions to be linked
to relevant linked data from public sites,
governments, etc.
– adds context
• Work in progress
– Galwaytf.com

28. Citizen sensors
• Model commons sensors on Android phones
• Attach sensor information to microblog posts
automatically or with user approval
– Using Twitter annotations format and/or RDF (ssn +
sioc + sioc types and sensors modules):
• sioct:MicroblogPost siocs:has_sensor_data
ssn:Observationvalue
–

29. cross-wiki integration using sioc

30. Using ppo/ppm to access sioc
+foaf data

31. New! social semantic journalism

32. John@bresl.in / @johnbreslin / johnbreslin.com
TALK TO ME!