A Portal for Linking Open

seaurchininterpreterInternet and Web Development

Dec 7, 2013 (3 years and 6 months ago)

184 views

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 Constellation

Rensselaer 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


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

@RPI

online

May 21, 2009

May, 2010

data.gov online

SPARQL

End Point

& RDF data

&

Demos

Replicated at

Data.gov

July,2009

2009

2010 …

Demos

Tutorials

Videos

SPARQL Endpoint

2009
-
2010

Oct, 2010

New Application

published by

a team at DOE

Two
-
day Mashathon

in Washington DC

Aug, 2010

May 21, 2010

data.gov relaunch

with semantic web

featured

TWC LOGD

Drupal Site

announced

Oct, 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 with NCI


http://logd.tw.rpi.edu/project/popscigrid


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 (e.g. %)

9

White House Visitor Search

Leveraging 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

Wikipedia

NYTimes

10

Linking GDP of the US and China

Linking 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

6.3

2000

2010

11

Reaching Open Source Communities

Linking 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 Data


8.5+ billion triples


400+ datasets


10+ sources



Many domains

Semantic Web Technology



completely open source



Demos/tutorials/videos

Community and Users



partner of US government



open source community



education in university

http://logd.tw.rpi.edu


Beyond just dogfood;

Linking Open Government Data Now!

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

14

Government Sponsors


DARPA

NSF

NASA

IARPA

NIH/NCI




15

Backups

16

Data.gov and World
-
Wide Open Government
Data Activities

January 1, 2009

“Openness will strengthen
our democracy and promote
efficiency and effectiveness
in Government.”


---

President Obama

Putting
Government
Data online


May 21, 2009

January 19, 2010

data.gov.uk online

May 21, 2010

data.gov online

data.gov relaunch

with semantic web

featured

June30,2009

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 a
nd led by Li Ding.
Other student team members include: Dominic DiFranzo, Sarah Magidson ,James Michaelis, Alvaro Graves, Adam Bell, Jin Guang Zh
eng
, 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

Table

Source

Record

Conversion

Layer

OGD (part1)

Snapshot

LOGD

(raw)

LOGD

(e1)

high

Levels of structural data granularity


low

Data publishing stages

OGD (part2)

Snapshot







Tech: Abstraction and Versioning

19

Tech: Provenance in LOGD data

Convert

derive

derive

derive

revision

Access

Enhance

Version

SemDiff

20

XHTML+RDFa

ARC2

http://data
-
gov.tw.rpi.edu/

Data
-
gov Semantic Search

Consume LOGD data in Semantic Search