Fsw2011 smob

Digital Enterprise Research Institute www.deri.i
e

SMOB: The best of both
worlds
Alexandre Passant, Julia Anaya, Owen
Sacco, Pavan Kapanipathi

FSW2011
Saturday, 4th June 2011
Berlin, Germany
© Copyright 2010 Digital Enterprise Research Institute. All rights reserved.

SMOB
e

 Open source microblogging framework
 Data is modelled and exchanged using Semantic
Web standards (RDF(S) and SPARQL) and Linked
Data principles
 Relies on protocols emerging from Social Web
systems (RSS, PubSubHubbub, WebSockets)

2

Linked Data for the Social Web
e

 Combines several vocabularies such as FOAF,
SIOC, MOAT / CommonTag or OPO
 Advantages:
 Application-agnostic
 Interlinking to social data
 Meaningful representation of topics
 Disambiguate tags
 Transparent to the user

3

Architecture
e

PubSubHubBub (PuSH) is an open, server-to-
server pubsub (publish/subscribe) protocol as
an extension to Atom and RSS

4

Publishing
e

 Since PuSH does not support RDF, we encode
SPARQL 1.1 Update queries in the RSS feeds
 Web Sockets are also added to allow client-to-
server communication

5

The privacy challenge
e

 The WebID protocol and the Privacy
Preference Ontology (PPO) allow authentication
and access control
 The process is transparent to the user

6

Access control
e

7

Summary
e

 Discussed how a combination of Semantic Web
standards and pragmatic Social Web
protocols could be benficial to achieve the
Federated Social Web vision
 Implemented privacy-by-design in SMOB

http://smob.me, https://github.com/smob/smob
alexandre.passant@deri.ie julia.anaya@deri.ie, owen.sacco@deri.ie, pavan.kapanipathi@deri.org

8

Fsw2011 smob

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