Geo-linked data: towards deep integration of location in the web of data

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Presentation by Andrew Woolf at GeoNext 2013 (http://www.geonext.com.au)

Presentation by Andrew Woolf at GeoNext 2013 (http://www.geonext.com.au)

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  • 1. Geo-linked data: towards deep integration oflocation in the web of dataDr. Andrew Woolf, Bureau of Meteorology
  • 2. Information explosion http://www.economist.com/node/21537922
  • 3. Big datahttp://strataconf.com/
  • 4. Data journalismhttp://www.guardian.co.uk/data
  • 5. Data for developmenthttp://data.worldbank.org/
  • 6. Location http://tweetping.net“everything happenssomewhere” “80% of data is spatial”
  • 7. BoM: environmental intelligence http://www.eea.europa.eu/highlights/ beyond-gdp/beyond-gdp-final-technical-paper
  • 8. Spatial integration neo-geographysemantic web SDI GIS SOA big dataHPC cloud
  • 9. Spatial data infrastructure?20102020 http://inspire.jrc.ec.europa.eu/index.cfm/pageid/44
  • 10. Neo-geo?
  • 11. Linked-data: ‘just enough’ integration“small pieces, loosely joined”
  • 12. Location: a killer app for linked-data? ed u ca tio th n al he tra ns s po istic rt stat
  • 13. Document web1. URI document identifier 3. Standard format (HTML) 4. Hyperlinks 2. Resolves with something useful
  • 14. Linked-data principles1. Use URIs as identifiers for Things http://sws.geonames.org/21725172. Make them actionable → http://www.geonames.org/2172517/canberra.html3. Return information following standards → http://sws.geonames.org/2172517/about.rdf4. Link to other information objects <rdfs:seeAlso rdf:resource="http://dbpedia.org/resource/Canberra"/> http://www.w3.org/TR/cooluris/ http://www.w3.org/DesignIssues/LinkedData.html
  • 15. Linked-data querying: SPQRQLSELECT ?name ?countryWHERE { http://www.geosparql.org ?city gs:nearby(-33.9 151.2 10) . ?city gn:name ?name . ?city gn:inCountry ?country } ---------------------------------------------------------- | name | country | ========================================================== | "Sydney" | <http://www.geonames.org/countries/#AU> | | "Wollongong" | <http://www.geonames.org/countries/#AU> | | "Katoomba" | <http://www.geonames.org/countries/#AU> | | "Cessnock" | <http://www.geonames.org/countries/#AU> | | "Newcastle" | <http://www.geonames.org/countries/#AU> | | "Nowra" | <http://www.geonames.org/countries/#AU> | | "Goulburn" | <http://www.geonames.org/countries/#AU> | | "Forster" | <http://www.geonames.org/countries/#AU> | | "Orange" | <http://www.geonames.org/countries/#AU> | | "Taree" | <http://www.geonames.org/countries/#AU> | ----------------------------------------------------------
  • 16. Five stars of open data     
  • 17. UK geo linked-data •CKAN platform for data.gov.uk •Extended to support metadata and CSW •Ordnance Survey http://www.ordnancesurvey.co.uk/ oswebsite/ontology http://data.ordnancesurvey.co.uk •Bathing water quality explorer http://environment.data.gov.uk/lab/ bwq-web.htmlhttp://data.gov.uk/library/designing-uri-sets-for-location
  • 18. Linked data for open government• OAIC principles on open public sector information – WHAT but no HOW• Linked-data provides a standard implementation approach for open public sector information
  • 19. BoM linked datalab.environment.data.gov.au
  • 20. BoM linked data
  • 21. BoM linked data
  • 22. BoM linked dataSELECT ?sitename ?districtnameWHERE {?site rdf:type acorn-site:Site.?site rdfs:label ?sitename.?site gn:locatedIn ?district.?district rdfs:label ?districtname.?district gn:parentADM1<http://lab.environment.data.gov.au/id/rainstate/NewSouthWales>.} TIBOOBURRA POST OFFICE New South Wales Western Far Northwest WILCANNIA (REID ST) New South Wales Western Far Northwest COBAR MO New South Wales Western Upper Darling BOURKE AIRPORT AWS New South Wales Western Upper Darling WALGETT AIRPORT AWS New South Wales Northwest Plains W MOREE AERO New South Wales Northwest Plains E GUNNEDAH RESOURCE CENTRE New South Wales Northwest Slopes S INVERELL (RAGLAN ST) New South Wales Northern Tablelands W … …
  • 23. Australian Government Linked Data Working Group (AGLDWG)• Ad-hoc group established August 2012 – BoM, OSP, CSIRO , AGIMO, DRALGAS, NAA, GA, ABS• Terms of reference – Develop technical guidelines and best practice on the use of ‘linked- data’ by AG agencies – Inform the development of data.gov.au as a platform for publishing Commonwealth PSI – Promote the benefits and encourage adoption of ‘linked-data’ for publishing Commonwealth PSI – Where appropriate, undertake specific activities and coordinate projects in pursuit of these objectives• Seeking formal endorsement
  • 24. AGLDWG activities• URI rules https://www.gov.uk/government/uploads/ system/uploads/attachment_data/file/60975/ – Drawing on UK work designing-URI-sets-uk-public-sector.pdf• Deployment architecture – DNS config, hosting infrastructure, data.gov.au subdomains …• Ontologies and vocabularies – W3C ORG, PROV ontologies, AGIFT
  • 25. Thank you…Andrew Woolfa.woolf@bom.gov.au