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Sharing Data on the Web
5-Mar-2013Linked Data Overview for US EPA
Office of Pollution Prevention & ToxicsBy Bernadette Hyland & Luke Ruth
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Agenda• Intros ...• Trends in data management• Government data publication• Update on EPA Linked Data Service• EPA OPPT sharing data on the Web• Review Next steps ...
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3 Round Stones produces the leading platform for the publication of reusable data on the Web. Our commercially supported Open Source platform is used by the Fortune 2000 and US Government agencies to collect, publish and reuse data, both on the public Internet and behind institutional firewalls.
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US EPA Linked Data
• Cloud-based Linked Data provision of 3 core programs:
• 2.9M Facilities• 100K substances• 25 years of toxic pollution reports• FISMA compliant• 16 Callimachus templates• Official launch April 2013
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Tuesday, March 5, 13
Guidance for developers
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US GPO• Cloud-based Linked Data provision of persistent URLs for US Government documents:
• 100k+ documents• Used by 1,240 Federal Depository Libraries and public
• In 3rd year of operation• Deemed an “Essential service” supporting US Congress
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http://www.manning.com/dwood/
http://3roundstones.com/linking-government-data/
http://3roundstones.com/linking-enterprise-data/
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Trends in government data management
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Open Government Data
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“We’re moving from managing documents to managing discrete pieces of open data and content which can be tagged, shared, secured, mashed up and presented in the way that is most useful for the consumer of that information.”
-- Report on Digital Government: Building a 21st Century Platform to Better Serve the American People
Growing chorus ...
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Tuesday, March 5, 13
15Photo credit: http://www.flickr.com/photos/glennharper/4452247708/Tuesday, March 5, 13
Big DataSimple dataComplex dataLegacy data
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GovernmentsGoals: Governmental transparency and/or improved
internal efficiencies (data warehouses)
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HELPING DEFINE THE PROCESS
PublishConvertDescribeNameModelIdentify
Maintain
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• Start easy
• Well curated datasets with relevant data
• Reach out to developers
• Get others involved early
• Ensure internal benefit
• Integrate related datasets
• Address data quality ...
• Multiple approaches including crowed sourcing
Path to Success
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Put it on the Web• Upload & share it
• Document what is available
• Document how to use it
• Solve a customer need
• Encourage feedback
• Continuous improvement
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Use a non-proprietary format
• Open Web data exchange formats that improve access and re-use
• RDF instead of CSV
• Benefits
• Accessibility & Interoperability
• Reduce risk of
• Confidential info
• Software viruses
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Open data + open standards + open platforms
Highly scalable computing & hosting via the
Cloud
International Data Exchange Standards
5 Star Data (Linked Data)
Leverage Open Source tools
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Its the Web of Data
• Universal unidirectional links using URLs
• “Cooperation without coordination
• It’s simple ... nodes and links
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Universal Identifiers• It’s the foundation of the
Web
• Others can reference things
• Two references with the same URI are the same thing
• Quick, easy and scaleable
• People keep coming back for more!!
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Social Responsibility
• Responsibility to maintain published data
• Publish frequency of data updates
• Have a persistence strategy
• Ensure data is accurate as possible
• Respond to reports of problematic data
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Clinical Trials + enterprise linked
data
US Legislation + enterprise data
DBpedia + enterprise datasets
Data driven Web apps using Callimachus
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User
NOAA US EPA AirNow
DBpediaNational Library of Medicine
US EPA SunWise
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From WikipediaFrom EPA
Open Street Map
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We’ve Seen This Before
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HOW IT IS DONE TODAY ...
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Audience for EPA Data
• Middle school student doing a science project
• Concerned citizen worried about local pollution
• Environmental Science PhD from EPA
• Doctor from NIH writing a research paper
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How much mercury did Hanson Permanente Cement
release in 2004?
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Web Portals
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Finding Hanson Permanente
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Finding Mercury Released in 2004
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Compliance Report
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Potential Audience
• Middle school student doing a science project
• Concerned citizen worried about local pollution
• Environmental Science PhD from EPA
• Doctor from NIH writing a research paper
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XX
X
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Linked Data Approach
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Finding Hanson Permanente
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Finding Mercury Released in 20041
2
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TRI Report
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Data Reuse
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Potential Audience
• Middle school student doing a science project
• Concerned citizen worried about local pollution
• Environmental Science PhD from EPA
• Doctor from NIH writing a research paper
✔
✔
✔
✔
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Credits
David NewmanGartner: “Innovation Insight: Linked Data Drives Innovation Through Information-Sharing Network Effects” Published: 15 December 2011
David Wood, ed. Linking Government Data, Springer (2011) http://3roundstones.com/linking-government-data/
US Executive Branch
Digital Government Strategy: Building a 21st Century Platform to Better Serve the American People, http://www.whitehouse.gov/sites/default/files/omb/egov/digital-government/digital-government.html
W3C Linked Data Cookbook http://www.w3.org/2011/gld/wiki/Linked_Data_Cookbook
All other photos and images © 2010-2012 3 Round Stones, Inc. and released under a CC-by-sa licenseAll other photos and images © 2010-2012 3 Round Stones, Inc. and released under a CC-by-sa license
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