Leveraging Social data with Semantics
description
Transcript of Leveraging Social data with Semantics
LeveragingSocial
datawith
Semantics
W3C Workshop on the Future of Social Networking15-16 January 2009, BarcelonaFabien Gandon, INRIA
RDF
RDFSOWL
rules
networks
profiles
tagsforum
mails
Web 2.0
inference
approximation
query
notify monitor
foster
SPARQL
Web linkschats
beetweenness centrality reveals brokers« A place for good ideas » [Burt 1992] [Burt 2004]
sociograms and analysis
W3C
W3C
W3C®
graphs, graphs, graphs, …
Fabien
Marco Guillaume
Nicolas
Michel
Rémi
social network analysis
Fabiencreator
author
Man
typedoc.html
author
Semantic web is not antisocial
Person
Man
sub property sub class
semantic web
),(;)( pxrelxpdin
4)( Guillaumedin
creator
Person
type
classic SNA on semantic web graphs
RDFgraph
non-typed graphs
leveraging the full semantic web stack
SPARQL + Extensions
Social Network Analysis Ontology
FOAF, RELATIONSHIP, SIOC,
DC, SKOS, SCOT, DOAP, MOATDomain
Ontologies
RDF/S, OWL GRDDL RDFa
µformatsXMLWrappers & web 2.0 APIs
social data
Semantic Social Network Analysis
[PhD Guillaume Erétéo]
ADD {?y semsna:hasInDegree _:b0 _:b0 semsna:forProperty param[type] _:b0 rdf:value ?indegree _:b0 semsna:hasLength param[length]
}SELECT ?y count(?x) as ?indegree {?x $path ?yfilter(match($path, star(param[type])))filter(pathLength($path)<= param[length])
} group by ?y
Broker!parameterized in-degree
)(d olengthtype, yin
[PhD Guillaume Erétéo]
long tail distribution of the betweenness centralities50 000 projections on 2020 FOAF profiles extracted from flickr.com [Freeman, 1979]
[PhD Guillaume Erétéo]
social
semantic
graphs
global
other graphs available too...
e.g. capture bookmarks and their tags
co-tags extracted from delicious for “ademe”6054 bookmarks, 16 users, 5153 tags, 5969 resources
[PhD Freddy Limpens]
global giant graphlinking users, actions, knowledge, companies, etc.
#Freddy
#bk81hasBookmark
hasTag#tag27
industry
hasLabel
#Fabien
#bk34
#tag92
industries
hasBookmark
hasLabel hasTag
shareInterest
link amaximumof graphs
closingmessages
open issues
scale security
open yourmobile web
openyour data
mobileweb ok
+ =
some bridges already exist...POWDER : information about web resource(s) without retrieving the resource(s)
Vocabularies : Device Description Vocabulary (MWI), Delivery Context Ontology (UWA), CC/PP Structure and Vocabularies
Semantic Web applications on phones: DBPedia Mobile, i-MoCo (250 million triples)
ISICIL projectsocial web applications and semantic web frameworks for corporate applications.• enterprise social networking;• business intelligence, watching, monitoring;• communities of interest, of practice;• web 2.0 & corporate processes integration;• trust, privacy, confidentiality.
http://www.slideshare.net
Fabien Gandon
http://ns.inria.fr/fabien.gandon/foaf#me
Person
typename
slidesOn
identifies