Affordable Access

Co-reference and sameAs.org

Authors
Publication Date

Abstract

Hackday 2011-01-14 Lightening Talk 1.ppt © 2010 Seme4! Seme4.com! Seme4! 18 Soho Square! London W1 3QL! T : + 44 20 7060 1590! Co-reference and sameAs.org! Hugh Glaser Seme4 Limited and University of Southampton, UK DevCSI Linked Data Hackdays ILRT, Bristol, UK, 14th January 2011 h"p://eprints.ecs.soton.ac.uk/id/eprint/21897 © 2010 Seme4! Seme4.com! The LOD “cloud”! 2! Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/ © 2010 Seme4! Seme4.com! Co-Reference! •  Lots of resources with multiple URIs! –  This is the nature of the Beast! –  Legal, Sociological and Technical reasons! •  This is a Big Problem! –  Everything is a URI (not title, name, number…)! –  Identifying multiple URIs for one resource! –  Rejecting incorrectly conflated resources! –  Publishing! –  Using! •  Solution! –  Co-reference is just Knowledge, but quite special, and crucial, knowledge! –  Generating a new URI is not the solution to already having too many! –  The web is anarchic – donʼt try to impose impossible structure on it! –  Embrace the anarchy and multiple URIs in your systems ab initio! 3! © 2010 Seme4! Seme4.com! Co-Reference Service (CRS)! •  CRS Subsystem! –  Find co-references! –  Store them! –  Publish them! •  Essentially:! •  URIi -> { URI1, …, URIi, …, URIn }! –  Recommend a “Canon”! •  Published by the Data Publisher! –  And possibly others! •  Middleware aggregates co-references from recognised CRSes! 4 © 2010 Seme4! Seme4.com! CRS continued! •  CRS Policies are defined by context! –  Often one per Triplestore! –  Can be many per Triplestore for different purposes! –  May not be associated with a particular Triplestore! •  Maintenance! –  Provenance! –  Rollback! •  Can be used to infer owl:sameAs! •  Eg OAI CRS has! –  7531045 different URIs! –  in! –  2544955 bundles! 5 © 2010 Seme4! Seme4.com! Look up Seungwoo! 6! © 2010 Seme4! Seme4.com! Co-Reference Cl

There are no comments yet on this publication. Be the first to share your thoughts.