Tetherless World. Linked Open Government Data: What’s Next?. Li Ding , James A. Hendler, and Deborah L. McGuinness With thanks to the entire RPI Tetherless World LOGD team: logd.tw.rpi.edu particularly John Erickson, Tim Lebo, Dominic DiFranzo;, Alvaro Graves;
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Linked Open Government Data: What’s Next?
Li Ding, James A. Hendler, and Deborah L. McGuinness
With thanks to the entire RPI Tetherless World LOGD team: logd.tw.rpi.edu
particularly John Erickson, Tim Lebo, Dominic DiFranzo;, Alvaro Graves;
Gregory Williams; Xian Li; James Michaelis; Jin Zheng; Zhenning Shangguan; Johanna Flores, Evan Patton
Tetherless World Constellation, Rensselaer Polytechnic Institute
SemTech 2011 San Francisco June 7, 2011
Open Government Data:
Government data is already available and open on the Web and is growing.
Let’s create mash ups to expose more value.
“Openness will strengthen our democracy and promote efficiency and effectiveness in Government.”
--- President Obama (Jan 2009)
“if people put data onto the web -- government data, scientific data, community data, whatever it is -- it will be used by other people to do wonderful things, in ways that they never could have imagined.”
-- Tim Berners-Lee (Feb 2010)
Linked Data and Semantic Tech are key enabler!
Source: http://www.whitehouse.gov/open, http://www.ted.com/talks/lang/eng/tim_berners_lee_the_year_open_data_went_worldwide.html
Deployment Status (source: Data.gov)
Data in proprietary formats
Distributed and unlinked Data
Linked Open Government Data
TWC: Tetherless World Constellation at Rensselaer Polytechnic Institute logd.tw.rpi.edu
LOGD: Linked Open Government Data
A Linked Open Government Data (LOGD)ecosystem is a Linked Data-based system where stakeholders of different sizes and roles find, manage, archive, publish, reuse, integrate, mash-up, and consume open government data in connection with online tools, services and societies.
Government Data is currently over ½ the cloud in size (~17B triples), 10s of thousands of links to other data (within and without)
Selected TWC Mashups
Trends in Smoking Prevalence, Tobacco Policy Coverage and Tobacco Prices (1991-2007)
Aimed at conveying complex health-related information to consumers and health decision makers
TBL’s 5-star Deployment Scheme for Linked Data
Build ontology mapping
based on shared terms
Crawled 40+ different dataset catalogs from 19 countries
“non-trivial customized programming workload”
Searching 323,304 datasets“Complex SPARQL query got timeout”
Application Development Expertise
Decompose workload to fine-granular jobs
Leverage a wider range of developers
Joint work with Alvaro Graves, PhD student at RPI
State-wise Tobacco Policy coverage stats
Aimed at helping people investigate local water quality
The work presented in this talk was primarily conducted at the Tetherless World Constellation at Rensselaer Polytechnic Institute.
Comments / Questions:
[ dingl | dlm ] @ cs.rpi.edu.
Open Linked Govt. Data Symposium: submission deadline June 15 http://tw.rpi.edu/web/event/AAAI/2011/Fall_Symposium_OGK
TWC / Elsevier Hackathon: June 27-28
Reference: Li Ding, Timothy Lebo, John S. Erickson, Dominic DiFranzo, Gregory Todd Williams, Xian Li, James Michaelis, Alvaro Graves, Jin Guang Zheng, Zhenning Shangguan, Johanna Flores, Deborah L. McGuinness and Jim Hendler, TWC LOGD: A Portal for Linked Open Government Data Ecosystems, submitted to JWS, special issue on semantic web challenge’10