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Engineers Ireland Annual Conference / Tullamore / 24th April 2009
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Copyright 2009 Digital Enterprise Research Institute.All rights reserved.
Digital Enterprise Research Institute www.deri.ie
Enhancing the Web Experience:DERI, Social Semantic Web and SIOC
John Breslin, Digital Enterprise Research Institute
College of Engineering and Informatics, NUI Galway
Engineers Ireland Annual Conference / Tullamore / 23rd April 2009
Digital Enterprise Research Institute www.deri.ie
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• The world’s largest Semantic Web research institute• Founded June 2003 with 1 fulltime member (green field)• Members as of April 2009:
– About 120 people (from 27 nations)
• Total research grants of about €38M• Over a hundred research partners• More than 500 research publications:
– Number 1 organisation in its core space
• Participates in 12 standards groups• Prominent technologies:
– Semantic Digital Libraries, Social Semantic Desktop (in Linux), Semantic Web Search Engine, Global Sensor Network, SIOC
DERI in brief
Digital Enterprise Research Institute www.deri.ie
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Some of our SFI and EI-funded research projects
• Líon II:– SFI CSET– Core industrial partners
include Nortel, Ericsson and Cisco (supported at headquarters level)
• eLite:– EI ILRP– €3 million over three years– 8 eLearning companies
• Clique:– SFI SRC– Graph and network analysis
• Widgelix:– Widget platform (with Cyntelix)
• Firefly:– EI Technology Development
(commercialisation planned)– Time-based eLearning
environment
• Sedici:– EI Proof of Concept– Zero-knowledge proof
• Pegasus:– Semantic search in MS
SharePoint (with Storm Technologies)
• TagBuilder:– EI Innovation Partnership (with
a start-up company)
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The Social Web lets like-minded people connect through shared photos, slides, books, whatever…
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Explosion of social / collaborative websites
(disconnected)
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Social websites are like data silos
* Source: Pidgin Technologies, www.pidgintech.com
Need ways to connect users / data on these islands
* Source: Pidgin Technologies, www.pidgintech.com
Allowing users to easily move from one to another
* Source: Pidgin Technologies, www.pidgintech.com
Enabling users to easily bring their data with them
* Source: Pidgin Technologies, www.pidgintech.com
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What is the Semantic Web?
• Sir Tim Berners-Lee et al., Scientific American, 2001:– “An extension of the current web in which information is given
well-defined meaning, better enabling computers and people to work in cooperation.”
• “Entrepreneurs see a Web guided by common sense”, John Markoff, New York Times, 2006:– “Referred to as Web 3.0, the effort is in its infancy, and the very
idea has given rise to skeptics who have called it an unobtainable vision. But the underlying technologies are rapidly gaining adherents, at big companies like IBM and Google as well as small ones.”
• Requires web pages to have metadata with underlying ontologies
Digital Enterprise Research Institute www.deri.ie
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It’s all a big graph of triples!
#Bob#Bob
#Alice#Alicedbpedia.org/
resource/Guitar
dbpedia.org/resource/
GuitarAlice CooperAlice Cooper
knows
interestname
interest
Metadata
Ontologyxmlns.com/
foaf/0.1/Person
xmlns.com/foaf/0.1/Person
xmlns.com/foaf/0.1/Person
xmlns.com/foaf/0.1/Person www.w3.org/
1999/02/22-rdf-syntax-ns#
resource
www.w3.org/1999/02/
22-rdf-syntax-ns#resource
www.w3.org/2000/01/rdf-schema#Literalwww.w3.org/2000/01/rdf-schema#Literal
knows
interestname
interest
type
type
type
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Semantically-Interlinked Online Communities (SIOC)
• An effort from DERI to discover how we can create and establish ontologies on the Semantic Web
• Goal of the SIOC ontology is to address interoperability issues on the (Social) Web
• SIOC has been adopted in a framework of 50 applications or modules deployed on over 400 sites
• http://sioc-project.org
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The steps taken
1. Develop an ontology of terms for representing rich data from the Social Web
2. Create a food chain for producing, collecting and consuming SIOC data
3. As well dissemination via papers about SIOC, provide docs and examples at sioc-project.org
• SIOC aims to enrich the Web infrastructure:– During the next upgrade cycle, gigabytes of semantically-
enriched community data become available!
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1. The SIOC ontology
• The main classes and properties are:
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Navigating across SIOC-enabled sites via Sindice
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Collaborative workspace interoperability with SIOC
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Quotes about SIOC
• “I […] think the concept is HOT” – Robert Douglass, Drupal Developer
• “It just dawned on me that the burgeoning SIOC-o-sphere (online communities exporting and exposing content via SIOC Ontology) is actually: Blogosphere 2.0” – Kingsley Idehen, Founder and CEO of OpenLink Software
• “SIOC has the potential to become one of the foundational vocabularies that make Semantic Web applications useful” – Ivan Herman, W3C / ERCIM
• “FOAF represents relationships between people, as well as basic contact details. SIOC does this for groups: it extends the FOAF idea to being able to talk about whole groups of people. I am excited about SIOC because you can use that information to determine trust, to let people in.” – Tim Berners-Lee, Creator of the World Wide Web
• “I think SIOC is the kind of data model we want that tracks the dollar instead of the person across disparate web sites” – George Thomas, Chief Architect, General Services Administration, US Government
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