How the Web of Data Will be Won

How the Web of Data Will be Won John Sheridan Jeni Tennison

Overview • Mapping Territory • Laying Tracks • Gold Mining • Civil War • Winning the Web of Data

photo from Cornell University Library on flikr Mapping Territory

Open Gov't Data • Pioneers • Wide open plains • data.gov.uk • Our legacy?

Why Linked Data • "web data" • Publishers and consumers • Open standards • Distributed data • Small pieces loosely joined

Our Approach • Winchester '73 • Design patterns • Try and evolve • Learning from mistakes

photo from Cornell University Library on flikr Laying Tracks

URIs • Things, documents, deﬁnitions, datasets http://{sector}.data.gov.uk/id/{concept}/{id} http://{sector}.data.gov.uk/doc/{concept}/{id} http://{sector}.data.gov.uk/def/{scheme}/{concept} http://{sector}.data.gov.uk/data/{package}/{subset} • Recommendations for persistence • Initial URI sets: legislation, schools, geographies ...

Versioning • Multiple sources, multiple versions over time • Named graphs and metadata • dates and relations to other versions • authority • source and provenance • Time-based slices of data

Provenance • Reproduceability as the basis of trust • Hugely complex • origination • processing • validation • Applies to real-world artifacts as well as data

photo from http://www.archives.gov/research/american-west/ Gold Mining

Statistics • Rich seam of data • SDMX from eg Ofﬁce for National Statistics • Excel spreadsheets • Pattern for publishing statistics in RDF • Tools to create linked data from Excel • http://groups.google.com/group/publishing- statistical-data

Geo-spatial Data • Tie in with INSPIRE European Directive • spatial objects must have identiﬁers (URIs) • speciﬁc metadata about spatial objects • Publication of geometries (eg boundaries) http://www.terrafuture.com/ •

photo from ♪_Lisa_♪ on flikr Civil War

Linked Data API • Neglect usability at our peril • ease of querying • ease of processing • Layer processing on SPARQL endpoint • create developer-friendly APIs • More later this afternoon...

Other Services • Resolution • searching for the right URI • Enrichment • marking up text with UK Government terms • Backlinking • Finding pointers from the rest of the cloud

photo from http://www.archives.gov/research/american-west/ Winning the WoD

Winning the WoD • For everyone • Brutally practical • Doing "stuff" matters

Conclusions • Early days • Making progress • Come join us

How the Web of Data Will be Won

by Jeni Tennison on Feb 28, 2010

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How the Web of Data Will be Won — Presentation Transcript