Authoring Linked Data with Semantic MediaWiki
Laurent Alquier, Pharma R&D Informatics Center, Johnson & Johnson Pharmaceutical Research & Development, L.L.C
Linked Data
Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. h@p://lod-‐cloud.net/
How to produce Linked Data ?
• Support still emerging in existing platforms
• Commercial tools are available
• Many more academic or experimental tools
Photo -‐ shu@erhacks, “Books” August 27, 2008 via Flickr, CreaNve Commons A@ribuNon.
Augment existing HTML pages
• RDFa • Lightweight annotaNons
• Adopted by • Content Management Systems (e.g. Drupal 7)
• Search engines • Google Rich Snippets • Yahoo SearchMonkey
Photo -‐ Hans Põldoja, “Tag cloud” November, 12 2009 via Flickr, CreaNve Commons A@ribuNon.
Map Databases
• D2RQ • Non-‐RDF databases mapped as virtual RDF graph
• R2RML • W3C’s RDB to RDF Mapping language
• Triplify • Database queries/views mapped to RDF
Photo – Nate Grigg, “IndicaNng” March 19, 2009 via Flickr, CreaNve Commons A@ribuNon.
Convert Files
• ‘RDFizers’ • CSV • XML • iCal • EXIF, …
Photo – Ravikiran Rao, “DSC00391” February 17, 2006 via Flickr, CreaNve Commons A@ribuNon.
Linked Data using Semantic MediaWiki
• Extension(s) to MediaWiki
• Used by large BioWikis • SNPedia, NeuroLex
• Looks like a wiki - Acts as Linked Data • SemanNc annotaNons • Tags with meaning
Many data integration options
MediaWiki extensions • Page attribution, social
media, authentication
Semantic extensions • Forms, drill-down, data
integration, result formats, RDFa, triple store connectors
Standardize annotations with forms
Collaboration, Knowledge Management tools
Seamless semantic layer
Triple store synchronization
Application to Translational Research
• Collaborative data source catalog • Origin and nature of content • How to access it • How it is licensed • Relationships to other data sources
• Enables easier queries from a single tool • Both internal and external data sources
Semantic Data Integration
Contributors add or edit wiki pages Enterprise Search
Queries into metadata catalog
Editors create queries
Import content from remote sources
Seman&c MediaWiki Triple Store
Data browser and visualizaNon
Ontology CuraNon
Consumed by analytics app, visualization, search engine
What next ?
• Semantic MediaWiki can also consume Linked Data • MediaWiki extensions :
LinkedWiki, RDFIO, SMW+ • Standalone project :
ShorNpedia
• Upcoming version will use RDF triples as primary storage
Photo – Reed Sturtevant, “Linked Data candies” January 15, 2010 via Flickr, CreaNve Commons A@ribuNon.
Questions ?
Acknowledgements • Dimitris Agrafiotis • Susie Stephens • Tim Schultz • Joe Ciervo • Keith McCormick Contact [email protected]
Photo – Michael Janssen, “Any quesNons ?” June 22, 2007 via Flickr, CreaNve Commons A@ribuNon.
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