1) The document proposes using Linked Data principles and extending the SIOC ontology to semantically interconnect heterogeneous wiki systems and enable semantic search across them.
2) Key wiki features like categorization, tagging, discussions, and versioning are modeled in the extended SIOC ontology.
3) Plugins are developed for MediaWiki and DokuWiki to export semantic data using the extended SIOC model, allowing semantic queries across wiki platforms.
http://www.inforum.cz/en/
This presentation provides an overview of causes why library and information services are fading out of sight for most user groups and how these users and their expectations have changed without us realizing. It contains a strong plea for a focus shift for librarians, but in fact also for companies and organisations. A focus into the environments where the users are, instead of expecting them to come to us, or our resources. Exploration of all relevant user environments for your organization, the use of new web-based technologies with Web 2.0 elements and certainly a more structural technical re-design of (library) information systems is required to deliver your services and resources at the place of need. A simple short-term solution like a QuickSearch Library Toolbar is explained, several other tools to “enrich” the user’s personal search environment, as well as the more long-term ongoing work at the Libraries of the University of Groningen and the Central Medical Library of the University Medical Center Groningen.
http://www.inforum.cz/en/
This presentation provides an overview of causes why library and information services are fading out of sight for most user groups and how these users and their expectations have changed without us realizing. It contains a strong plea for a focus shift for librarians, but in fact also for companies and organisations. A focus into the environments where the users are, instead of expecting them to come to us, or our resources. Exploration of all relevant user environments for your organization, the use of new web-based technologies with Web 2.0 elements and certainly a more structural technical re-design of (library) information systems is required to deliver your services and resources at the place of need. A simple short-term solution like a QuickSearch Library Toolbar is explained, several other tools to “enrich” the user’s personal search environment, as well as the more long-term ongoing work at the Libraries of the University of Groningen and the Central Medical Library of the University Medical Center Groningen.
Breaking Down Walls in Enterprise with Social SemanticsJohn Breslin
Keynote Talk at the Workshop on New Trends in Service Oriented Architecture for massive Knowledge processing in Modern Enterprise (SOA-KME 2012) / Palermo, Italy / 6th July 2012
A Survey of the Landscape and State-of-Art in Semantic WikiMax Völkel
Semantic Wikis: The Wiki Way to the Semantic Web?
Semantic Wiki Mini-Series1st session: A Survey of the Landscape and State-of-Art in Semantic Wiki
Co-chairs:
Sebastian Schaffert (Salzburg Research, Austria),Max Völkel (FZI-Karlsruhe)
Connotea and CiteUlike | Milk Group | 3 EHAIL 2010 | Carlos Lopes_pptCarlos Lopes
“Discovery of scientific information on health through social labeling: Connotea and CiteUlike”
Carlos Lopes, Julio Alonso-Arévalo, Helena Martín-Rodero,María García-Puente Sánchez, AngelsCarles-Pomar *Lisbon, 17 JUNE 2010
Profiling User Interests on the Social Semantic WebFabrizio Orlandi
Fabrizio Orlandi's PhD Viva @Insight NUI Galway (ex-DERI) - 31/03/2014.
Supervisors: Alexandre Passant and John G. Breslin.
Examiners: Fabien Gandon and Stefan Decker
32 Ways a Digital Marketing Consultant Can Help Grow Your BusinessBarry Feldman
How can a digital marketing consultant help your business? In this resource we'll count the ways. 24 additional marketing resources are bundled for free.
Breaking Down Walls in Enterprise with Social SemanticsJohn Breslin
Keynote Talk at the Workshop on New Trends in Service Oriented Architecture for massive Knowledge processing in Modern Enterprise (SOA-KME 2012) / Palermo, Italy / 6th July 2012
A Survey of the Landscape and State-of-Art in Semantic WikiMax Völkel
Semantic Wikis: The Wiki Way to the Semantic Web?
Semantic Wiki Mini-Series1st session: A Survey of the Landscape and State-of-Art in Semantic Wiki
Co-chairs:
Sebastian Schaffert (Salzburg Research, Austria),Max Völkel (FZI-Karlsruhe)
Connotea and CiteUlike | Milk Group | 3 EHAIL 2010 | Carlos Lopes_pptCarlos Lopes
“Discovery of scientific information on health through social labeling: Connotea and CiteUlike”
Carlos Lopes, Julio Alonso-Arévalo, Helena Martín-Rodero,María García-Puente Sánchez, AngelsCarles-Pomar *Lisbon, 17 JUNE 2010
Profiling User Interests on the Social Semantic WebFabrizio Orlandi
Fabrizio Orlandi's PhD Viva @Insight NUI Galway (ex-DERI) - 31/03/2014.
Supervisors: Alexandre Passant and John G. Breslin.
Examiners: Fabien Gandon and Stefan Decker
32 Ways a Digital Marketing Consultant Can Help Grow Your BusinessBarry Feldman
How can a digital marketing consultant help your business? In this resource we'll count the ways. 24 additional marketing resources are bundled for free.
Semantic Wiki: Social Semantic Web in UseJesse Wang
This is my invited talk on Semantic Wiki to the Key Lab of Intelligent Information Processing at Fudan University in Shanghai during ASWC 2009 when I gave a similar tutorial on semantic mediawiki and applications.
One of the most popular sites within the public domain is Wikipedia (http://en.wikipedia.org), an encyclopedia written collaboratively by volunteers from all around the world and anyone with internet access can make changes to Wikipedia articles. Since its creation in 2001, Wikipedia attracts 684 million visitors yearly. There are more than 75,000 active contributors working on more than 10,000,000 articles in more than 260 languages. That is a collaboration project to envy.
Wiki in web 2.0 scenerio concept emerged as a response to the technologies and setting the libraries into more user-centered, networking faculty, students, and librarians to create a vital and evolving organization designed to meet the need of the of the user in digital library era.
Semantic Tagging for the XWiki Platform with Zemanta and DBpediaElena-Oana Tabaranu
Tags are a very effcient method of describing information
with metadata. Adding semantic information to the keywords allows
computers to comprehend what the pages are saying and use that knowledge to oer better service to humans when interacting with them. The
tagging extension for the XWiki Platform links the user-defined keywords
with semantic information from the DBpedia knowledge base.
Exploring Article Networks on Wikipedia with NodeXLShalin Hai-Jew
With 4.7 million articles in the English version of Wikipedia, this crowd-sourced online encyclopedia is regularly one of the top-ten visited sites online. For many, this is the go-to source for a first read on a topic. The open-source and free Network Overview, Discovery and Exploration for Excel (NodeXL), which is an add-on to Microsoft Excel, enables the capture of “article networks” from Wikipedia. Such content network analysis-based data visualizations enable the development of research leads; some understandings of public conceptualizations of related concepts, peoples, events, and phenomena; the profiling of Wikipedia editors (both humans and ‘bots), and other research insights. This presentation will showcase this affordance of NodeXL and provide some ideas for practical applications of this channel of research and knowing.
Web 2.0 and Social Media for Business Textbook 2nd Edition Powerpoint Slides
Free Bookboon book at http://bookboon.com/en/web-2-0-and-social-media-for-business-ebook
Semantic user profiling and Personalised filtering of the Twitter streamFabrizio Orlandi
Presentation at Kno.e.sis - Feb 2012.
The presentation describe my current PhD research at DERI and the work done in 5 weeks during a collaboration in Kno.e.sis with Pavan Kapanipathi, Prof. Amit Sheth, Prof. T. K. Prasad and the rest of the group.
- video: http://youtu.be/MmF5HxIVUwA
2. Interlinking wikis
Digital Enterprise Research Institute www.deri.ie
All wikis share a wide common knowledge, within many different
wiki platforms:
TWiki DokuWiki
MoinMoin
Widely used even in the workplace...
Atlassian Trac
XWiki
Confluence Wiki
All with different structures, platform dependent, all disconnected...
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3. Many isolated communities of users and their data
Digital Enterprise Research Institute www.deri.ie
Wikis are also disconnected with other
social media websites
* Source: Pidgin Technologies, www.pidgintech.com
4. Interlinking wikis
Digital Enterprise Research Institute www.deri.ie
We propose a new approach based on Linked Data principles to solve such
issues and to enable semantic search across heterogeneous wiki systems
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5. Wiki Models
Digital Enterprise Research Institute www.deri.ie
Several semantic models have been implemented and used within
specific semantic wiki platforms
e.g.:
Semantic MediaWiki
as well as efforts to create generic ontology models:
•WikiOnt ontology (DERI)
•WIF (Wiki Interchange Format) ontology
(Völkel, Oren - 1st Workshop on Semantic Wikis - 2006)
But they are all specific to wikis and not open to other social
websites
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6. SIOC
Semantically-Interlinked Online Communities
Digital Enterprise Research Institute www.deri.ie
• A project developed by DERI to semantically describe the content
and structure of community sites
• It aims to create new connections between online discussion posts
and items, forums, blogs... and wikis.
• In particular the SIOC ontology is not specific to wikis and is widely
used on the Web
• Adopted in a framework of more than 50 applications, deployed on
over 400 sites
including Drupal 7 and Yahoo! SearchMonkey
http://sioc-project.org
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7. Extending the SIOC ontology
Digital Enterprise Research Institute www.deri.ie
We decided to extend the SIOC ontology to make it compliant with wikis
and make wikis interoperable and linkable to other social objects.
Advantages:
• Integration with all the existing semantic data
• Ability to run the same queries to find items on:
– wikis, forums, blogs, social neworking sites, etc.
First we considered the typical and relevant features of wikis in terms of
structure and social interactions.
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8. Relevant wiki features
Digital Enterprise Research Institute www.deri.ie
Multi-authoring: multiple users edit the same content collaboratively.
• Categories: hierarchical organization of articles.
A solution: SKOS vocabulary (W3C recommendation to model hierarchical structures between various
categories) and the sioct:Category class
• Social Tagging: non-organized but dynamic organization process.
The properties sioc:topic (using URIs) and dc:subject (using keywords) can be used to represent tags
related to a particular wiki page.
http://wiki.../The_Clash sioc:topic
http://wiki.../Punk_rock
dc:subject tag:hasTag
Punk rock
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9. Relevant wiki features
Digital Enterprise Research Institute www.deri.ie
• Discussions: pages where people can discuss about the article subject.
We added a new sioc:has_discussion property, with domain sioc:Item and open range.
• Backlinks: (or “what links here”) wiki internal links pointing to the same wiki article.
We use the already existing sioc:links_to property.
Pages Versioning: each page has an associated page history.
We use sioc:next(previous)_version and sioc:latest_version properties.
Added 2 transitive (OWL) properties: sioc:earlier_version & sioc:later_version;
Defined sioc:next(previous)_version as subproperties of sioc:later(earlier)_version.
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10. SIOC-MediaWiki Exporter
Digital Enterprise Research Institute www.deri.ie
An exporter from a popular wiki platform to expose data in RDF using our
proposed model.
A webservice, written in PHP, that exports a MediaWiki article in RDF publicly
available at:
http://ws.sioc-project.org/mediawiki/
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11. SIOC-MediaWiki Exporter
Digital Enterprise Research Institute www.deri.ie
An exporter from a popular wiki platform to expose data in RDF using our
proposed model.
A webservice, written in PHP, that exports a MediaWiki article in RDF publicly
available at:
http://ws.sioc-project.org/mediawiki/
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12. Browsing the generated data
Digital Enterprise Research Institute www.deri.ie
RDF data extracted from a wiki page is browsable with tools such as
The Tabulator
To offer a better browsing experience and ease the process of
crawling SIOC exports of MediaWiki instances, the webservice
automatically produces rdfs:seeAlso links between wiki pages,
following the Linked Data practices;
Link to the corresponding Dbpedia resource added automatically, if
the article is from the Wikipedia [English] (with foaf:primaryTopic)
A RDF crawler can easily follow all the seeAlso links found on every
document and continue to crawl, so it is possible to crawl an entire
wiki site starting from a single URI.
13. Browsing the generated data
Digital Enterprise Research Institute www.deri.ie
RDF data extracted from a wiki page is browsable with tools such as
The Tabulator
The webservice automatically produces rdfs:seeAlso links between
wiki pages, following the Linked Data principles;
A RDF crawler can easily follow all the seeAlso links found on every
document and continue to crawl, so it is possible to crawl an entire
wiki site starting from a single URI.
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14. The DokuSIOC plugin
Digital Enterprise Research Institute www.deri.ie
A plugin for DokuWiki that exports RDF data using popular lightweight ontologies
(originally developed by M. Haschke, a SIOC contributor).
We modified and extended this plug-in in order to be compliant with our proposed
model and to export all the needed wiki features.
It takes information from the metadata stored in the wiki system about pages,
users, links, etc. and provides it as raw RDF/XML serialized data
(instead of the usual HTML page).
Developed in PHP and easy to install in every DokuWiki system.
It uses the SIOC PHP API.
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16. Collecting Data
Digital Enterprise Research Institute www.deri.ie
To evaluate our proposal, we exported and crawled 5 different
MediaWiki and DokuWiki instances
Collecting more than: 1GB of RDF data,
3000 wiki articles and 700 users
Data loaded in a triple-store (Sesame + OWLIM)
On the top of that it is possible to run cross-sites queries
by combining FOAF and SIOC
e.g.:
SELECT DISTINCT ?content
WHERE {
<http://example.org/js#me> foaf:account ?account .
?account rdf:type sioc:UserAccount .
?content sioc:has_creator ?account .
}
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17. Collecting Data
Digital Enterprise Research Institute www.deri.ie
SELECT DISTINCT ?content
WHERE {
<http://example.org/js#me> foaf:account ?account .
?account rdf:type sioc:UserAccount .
?content sioc:has_creator ?account .
}
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18. Building the application
Digital Enterprise Research Institute www.deri.ie
The data acquisition module is a PHP script that:
queries the triple-store
collects and parses the results
translates the data in the correct format (JSON) for the visualization
layer
The visualization layer has been built with the Exhibit framework by the
MIT SIMILE Project
It is a set of Javascript files directly configurable on the HTML code of
the page to display
It allows for faceted browsing capabilities
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20. Conclusions
Digital Enterprise Research Institute www.deri.ie
Presented how the SIOC ontology and lightweight semantics can be
used and extended to represent the structure of wikis;
How to interlink wikis to other online communities;
Demonstrated an overall benefit on applying SemWeb technologies
to wikis:
– enabling end-users to access the information generated in a
simple and transparent way,
– showing potentialities that cannot be obtained using the traditional
Web 2.0 instruments;
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