Transcript Open Government Data

Open Government
Data
Dominic DiFranzo
PhD Student/Research Assistant
Rensselaer Polytechnic Institute
Tetherless World Constellation
from http://logd.tw.rpi.edu/iogds_data_analytic
Interna@onal)
9)July)2012)
2012$INTERNATIONAL$OPEN$GOVERNMENT$DATA$CONFERENCE—OPEN$GOV$DATA$TUTORIAL$$
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Taking Notice
• Some 40% of adult internet users have
gone online for raw data about
government spending and activities
•
According to Government Online, a study conducted by the Pew
Internet and American Life Project
(http://www.pewinternet.org/Reports/2010/Government-Online.aspx)
Why not?
• Health (hospital scores, diet/food)
• Economics (unemployment, CPI)
• Crime (rates, geo/temporal)
• Environment (air quality, weather)
• Education (rates, school districts)
• So much more....
Who?
• Citizens,
• NGOs
• Academics,
• Entrepreneurs,
• Activists
• Everyone!!!
Challenges?
• machine-readability
• Metadata
• Provenance
• Discovery
• Mashing/linking
Current Web Tech?
• Sunlight Foundation’s National Data
Catalog, Socrata, Open311 API, and
Microsoft’s Open Government Data
Initiative, etc
• Store in some backend, release data
through an API.
Still have Challenges!
• Only ask what its built to answer
• Opaque - no way for consumers to see,
reuse or improve the data model
• Silos of Data - no linking at the data
level
• Non-standard - Knowing one doesn’t
mean you know another.
What we have
Semantic Web?
• Adding the meaning or semantics of
information to web content and services
so people and machines can use and
understand it better
• In other words allow machines to
understand the web like we can.
The Stack
Linked Open Data
Linked Data
• decentralized - sources may be spread
out and referenced across the Web
• modular - linked without advance
planning or coordination
• scalable - once store in place, it’s easy
to extend
• advantages hold even when definitions
and structure of the data changes over
time.
web 3.0
Enhancements
LOGD
Data.gov
Discovery
• Publishing open government data as Linked
Data is not enough
• For OGD to be useful, datasets must be
published using metadata, markup
standards and presentation that aid
discovery and use
IOGDS
• Recent work at TWC RPI demonstrates the
value of applying emerging standards for
uniformly describing government datasets
and catalogs
• TWC's IOGDS application is an aggregated
catalog of more than 1M datasets from over
192 dataset catalogs from governments at
every level around the world
IOGDS
• Anticipates W3C DCAT RDF vocabulary
• Demos what a comprehensive federated
catalog based on DCAT and aggregation
API might look like
• IOGDS is a multi-year effort based on
downloading, scraping or accessing APIs,
converting metadata to a proto-DCAT model,
and publishing via endpoint and download
• See at logd.tw.rpi.edu
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Leaders
•
Jim Hendler
•
Deborah L. McGuinness
•
Li Ding
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Members
•
Dominic DiFranzo
•
Sarah Magidson
•
James Michaelis
•
Alvaro Graves
•
Jin Guang Zheng
•
Xian Li
•
Gregory Todd Williams
•
Tim Lebo
•
Zhenning Shangguan
•
Devin Gaffney
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Peter Coons
Adam Bell
William Cooper
Brian Zaik
Johanna Flores
Government Sponsors
DARPA
NSF
NASA
IARPA
NIH/NCI
…
Questions?