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TWC LOGD: A Portal for Linking Open
Government Data Dominic DiFranzo, Li Ding, John S. Erickson, Xian Li, Tim Lebo, James Michaelis, Alvaro Graves, Gregory Todd Williams, Jin Guang Zheng, Johanna Flores, Zhenning Shangguan, Gino Gervasio, Deborah L. McGuinness, Jim Hendler
Tetherless World ConstellationRensselaer Polytechnic Institute
Semantic Web Challenge 2010
Nov 10, 2010
2
The TWC LOGD Portal for SWC2010
Real World Data US, UK, China,… Health, energy, economy
End User Applications Community Portal Fast, Low-cost Mashups
Semantic Web in Gov Domain Major partner of Data.gov 8.5 billion triples in LOD
3
“Semantic Web” and RDF logo showed up on the frontpage of the US Data.gov website
4
RPI brought Semantic Web to US government
5
Major Partner of US Data.gov Project
Semantic Web Tech deployed in Data.gov RDF data, SPARQL endpoint, semantic mashups
6
Government Adoption Process
Data-gov Wiki@RPIonline
May
21,
20
09
May
, 20
10
data.gov online SPARQL End Point& RDF data& DemosReplicated atData.gov
July
,20
09
2009 2010 …DemosTutorialsVideosSPARQL Endpoint20
09-
2010
Oct
, 20
10
New Applicationpublished bya team at DOE
Two-day Mashathon in Washington DC
Aug
, 20
10
May
21,
20
10
data.gov relaunchwith semantic webfeatured
TWC LOGD Drupal SiteannouncedO
ct,
2010
7
The Largest Real World LOD Dataset
8.5+ billion triples from real world 7500+ LOD links Accessible via Data Browser, e.g. Tabulator
8
Trends in Smoking Prevalence, Tobacco Policy Coverage and Tobacco Prices (1991-2007)
Smoking Prevalence vs. Tax, Policy …Extensible and accountable Mashups for NIH project
Extensible Mashups via Linked Data Diverse datasets from NIH Potentially linking to “unemployment rate”Accountable Mashups via Provenance Annotate datasets used in demos Feedback users’ comment to gov contact
9White House Visitor SearchLeveraging linked data (DBpedia & New York Times)
“POTUS”
dbpedia:Barack_Obama
Created by Dominic DiFranzo, Evan Patton, RPI, http://data-gov.tw.rpi.edu/demo/stable/white-house-visitor/top100-visitees.php
[Person Mashup] Data.gov (statistics) + DBpedia (personal profiles)+ NYTimes (news) [Technologies] Semantic MediaWiki, Google Visualization, IPad Apps available in Apple Store
The White House
Semantic Wiki
WikipediaNYTimes
10Linking GDP of the US and ChinaLinking international government data meaningfully
GDP of China (Billion Chinese Yuan )
GDP of the US (Billion Dollar)
[Temporal Mashup] bea.gov + federalreserve.gov +stats.gov.cn
8.3
6.32000 2010
11Reaching Open Source CommunitiesLinking semantic web with web developers
• Social Semantic Web extensions/modules to popular CMS, e.g. Semantic Wiki, Drupal
• Process/consume integrated gov data in a number of different ways: social networks, natural language technologies, workflows, search…
12
TWC LOGD Status: Website Statistics
• 378,128 page hits • 28,481 visits• 16,041 visitors• 4126 cities• 34 countries
Note: the above statistics are about http://data-gov.tw.rpi.edu. Dataset access not counted.
13
Summary of the TWC LOGD Portal
Real World Data8.5+ billion triples 400+ datasets10+ sources Many domainsSemantic Web Technology completely open source Demos/tutorials/videosCommunity and Users partner of US government open source community education in university
http://logd.tw.rpi.edu
Linking Open Government Data Now!
14
The Team and Sponsors
• Jim Hendler• Deborah L. McGuinness• Li Ding• Dominic DiFranzo• Sarah Magidson• James Michaelis • Alvaro Graves• Jin Guang Zheng • Xian Li• Gregory Todd Williams• Tim Lebo• Zhenning Shangguan• Devin Gaffney• Peter Coons• Adam Bell• William Cooper • Brian Zaik• Johanna Flores
Government Sponsors
DARPANSFNASAIARPANIH/NCI…
15
Backups
16Data.gov and World-Wide Open Government Data Activities
Janu
ary
1,
2009
“Openness will strengthen our democracy and promote efficiency and effectiveness in Government.”
--- President Obama
Putting Government Data online
May
21,
20
09
Janu
ary
19,
2010
data.gov.uk onlineM
ay 2
1,
2010
data.gov online data.gov relaunchwith semantic webfeatured
June
30,2
009
2009 2010 …
Many countries• US• UK• Australia• New Zealand …
17
Data-gov Wiki: Innovations at RPI
The Data-gov Wiki explores and educates the use of semantic web technologies, esp. linked data, in producing, processing and utilizing government data from data.gov.
The Data-gov Wiki is run by the Tetherless World Constellation at RPI, headed by Professors Jim Hendler and Deborah McGuinness and led by Li Ding. Other student team members include: Dominic DiFranzo, Sarah Magidson ,James Michaelis, Alvaro Graves, Adam Bell, Jin Guang Zheng, Xian Li, Tim Lebo, Gregory Todd Williams, Peter Coons, Zhenning Shangguan, Devin Gaffney, William Cooper, Brian Zaik, and Johanna Flores .
40+ Demos 400+ Datasets Tutorials & Videos
18
Dataset
Version
TableSource
Record
ConversionLayer
OGD (part1)Snapshot
LOGD(raw)
LOGD(e1)
high Levels of structural data granularity low
Dat
a pu
blis
hing
sta
ges
OGD (part2)Snapshot
…
…
…
Tech: Abstraction and Versioning
19
Tech: Provenance in LOGD data
Convert
derive derive
create
derive
revision
Access
Enhance
Version
SemDiff
20
XHTML+RDFa
ARC2
http://data-gov.tw.rpi.edu/
Data-gov Semantic Search
HTML
RDFa
WebSearchResults
RDF
Annotation
Consume LOGD data in Semantic Search