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Introduction to Open Data and related concepts. Presented on Free Software Day in Barcelona, on 2014-09-20.
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Open Dataa view from the trenches
Tim Waters
Tim Waters
Tim Waters
DataOpen Raw
Linked Big
JournalismGovernment
Open Data
Open Definition
Open Definition .org
–Open DefinitionOpen Knowledge
“Open data can be freely used, modified, and shared by anyone for any purpose”
Data that is Open
https://data.cityofchicago.org/
http://maps.met.police.uk/
http://data.police.uk
Open Data promotes Transparency
Open Data is good PR
http://dadesobertes.gencat.cat/
http://opendata.bcn.cat/
http://www.diariocordoba.com/noticias/cordobalocal/nace-plataforma-open-data-cordoba-para-buscar-empleo-o-crear-empresas_625578.html
http://www.opendatacordoba.com/
Open Data should promote Accountability
http://civio.es/
http://DondeVanMisImpuestos.es/
http://www.theguardian.com/news/datablog/2012/dec/04/government-spending-department-2011-12
Data Journalism
http://www.theguardian.com/data
Open Government
Data + Participation
Raw Data
–Every public administration ever
“We’ll release the data once we’ve made sure
that it is of sufficient quality.”
Just give us the Data already
–Those same public administrations
“But it is Too Much Data”
Big Data
gartner.com
Linked Data
-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.”
Serendipity
Linking Open Data, 2007
Linking Open Data, 2001
Semantic Web
RDF
Resource Description Framework
Object !
!
Attribute = Value
ERD
Object Object
RDF
Subject ObjectPredicate
RDF
Subject ObjectPredicate
They are all URIs!
SPARQL
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!
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!
Get Yer Open Data
Private Sector
• 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/
http://www.google.com/publicdata/
https://aws.amazon.com/datasets
Public Sector
• http://data.gov
• http://data.gov.uk
• http://datos.gob.es/
• http://opendata.euskadi.net
• http://dadesobertes.gencat.cat
• http://w20.bcn.cat/opendata
http://datos.gob.es/sites/default/files/infomeopendatasmartcities.pdf
Do It Yourself
Evan Amos
https://morph.io
State of the Data
http://www.opendataresearch.org/barometer
Dave Tarrant / Open Data Institute https://theodi.github.io/open-data-barometer-viz/
http://CatalunyaDades.cat/
http://AbreDatos.es/
Use the Data, Luke
Challenges
More Data
Better Data
Relevant Data
Fresh Data
Known-Good Formats, s'il vous plaît
Privacy
Licences
Where to now?
Open your Data
http://OpenDataHandbook.org/
–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.”
http://catalunyadades.cat/?iniciatives_agenda=guia-de-dades-obertes-per-administracions-locals
Link your Data
Thank you
@codehead [email protected]