Open Data: a view from the trenches
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Transcript of Open Data: a view from the trenches
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Tim Waters
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Tim Waters
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Tim Waters
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DataOpen Raw
Linked Big
JournalismGovernment
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Open Data
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Open Definition
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Open Definition .org
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–Open DefinitionOpen Knowledge
“Open data can be freely used, modified, and shared by anyone for any purpose”
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Data that is Open
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Open Data promotes Transparency
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Open Data is good PR
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http://www.diariocordoba.com/noticias/cordobalocal/nace-plataforma-open-data-cordoba-para-buscar-empleo-o-crear-empresas_625578.html
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Open Data should promote Accountability
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http://www.theguardian.com/news/datablog/2012/dec/04/government-spending-department-2011-12
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Data Journalism
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Open Government
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Data + Participation
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Raw Data
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–Every public administration ever
“We’ll release the data once we’ve made sure
that it is of sufficient quality.”
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Just give us the Data already
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–Those same public administrations
“But it is Too Much Data”
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Big Data
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Linked Data
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-Tim Berners-Lee The Next Web
TED 2009
“When you connect data together, you get power in a way that doesn't happen just with the web, with documents.”
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Serendipity
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Linking Open Data, 2007
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Linking Open Data, 2001
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Semantic Web
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RDF
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Resource Description Framework
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Object !
!
Attribute = Value
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ERD
Object Object
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RDF
Subject ObjectPredicate
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RDF
Subject ObjectPredicate
They are all URIs!
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SPARQL
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SPARQL Example
PREFIX dbo: <http://dbpedia.org/ontology/> !
SELECT ?name ?birth ?death ?person WHERE { ?person dbo:birthPlace :Barcelona . ?person dbo:birthDate ?birth . ?person foaf:name ?name . ?person dbo:deathDate ?death . FILTER (?birth < "1900-01-01"^^xsd:date) . } ORDER BY ?name
Go!
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SPARQL ExamplePREFIX dbo: <http://dbpedia.org/ontology/> !
SELECT ?name ?birth ?description ?person WHERE { ?person dbo:birthPlace :Barcelona . ?person <http://purl.org/dc/terms/subject> <http://dbpedia.org/resource/Category:Spanish_composers> . ?person dbo:birthDate ?birth . ?person foaf:name ?name . ?person rdfs:comment ?description . FILTER (LANG(?description) = 'en') . } ORDER BY ?name
Go!
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Get Yer Open Data
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Private Sector
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• Google Public Data Explorer http://www.google.com/publicdata/
• Amazon Web Services Public Data Sets http://aws.amazon.com/datasets
• Socrata http://opendata.socrata.com/
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Public Sector
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• http://data.gov
• http://data.gov.uk
• http://datos.gob.es/
• http://opendata.euskadi.net
• http://dadesobertes.gencat.cat
• http://w20.bcn.cat/opendata
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http://datos.gob.es/sites/default/files/infomeopendatasmartcities.pdf
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Do It Yourself
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Evan Amos
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State of the Data
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Dave Tarrant / Open Data Institute https://theodi.github.io/open-data-barometer-viz/
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Use the Data, Luke
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Challenges
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More Data
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Better Data
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Relevant Data
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Fresh Data
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Known-Good Formats, s'il vous plaît
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Privacy
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Licences
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Where to now?
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Open your Data
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–Open Data Handbook Documentation, Release 1.0.0Page 1
“This handbook discusses the legal, social and technical aspects of open data. It can be used by anyone but is
especially designed for those seeking to open up data. It discusses the why, what and how of open data – why to
go open, what open is, and the how to ‘open’ data.”
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http://catalunyadades.cat/?iniciatives_agenda=guia-de-dades-obertes-per-administracions-locals
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Link your Data
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Thank you