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 lalquier@its.jnj.com

Photo  –  Michael  Janssen,    “Any  quesNons  ?”  June  22,  2007  via  Flickr,  CreaNve  Commons  A@ribuNon.