Linked Data
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Linked Data Government data in RDF US-COMMUNITY (2005-2007) CASTNET (1990 – Present) RECS (2005) GOV-BUDGET (1962-2014) TOXIC-RELEASE (2005-2008) EARTHQUAKE (Present) STATE-LIB (2005- 2007) PUBLIC- LIB (1992- 2006) MED-COST (1994- 2009) LABOR-STAT (19xx- Present) DATA-GOV-CATALOG (present) US agency US location GeoNames CASTNET sites ITSpending (2008-2010) Community Public Services Environment LOD Cloud Government Data-gov Wiki: Towards Linked Government Data Li Ding 1 , Dominic DiFranzo 1 , Sarah Magidson 2 , Deborah L. McGuinness 1 , Jim Hen 1 Tetherless World Constellation, Rensselaer Polytechnic Institute, 110 8th St, Troy, NY 12180, USA 2 University of Chicago, 5801 South Ellis Avenue, Chicago, IL 60637, USA {dingl,difrad,dlm,hendler}@cs.rpi.edu [email protected] … http://data-gov.tw.rpi.e is work is partially supported by NSF Award #0524481,IARPA Award #FA8750-07-2-0031, and DARPA award #FA8750-07-D-0185, #55-002001, #FA8650-06 1.link similar datasets by reusing property namespace 2.link to rdfs:label (via rdfs:subPropertyOf) using semantic wiki 3.link to DBpedia (via owl:sameAs) using wikipedia widget 4.link instances (via common <property, literal-value> pair) 5.link government data with web data (via time and location) 6.link revisions of government data (via knowledge provenance) A. render SPARQL results by Exhibit, Google Visualization,… B. integrate Web users’ collectively contributed data C. inform Web users changes of dataset via RSS and Twitter Linking Government Data Using Linked Government Data semantic web enabled portal for linked government data 5 billion triples from data.gov hosts apps, demos & services integrates users’ contributions About Data-gov Wiki 1 6 4 5 A A 2 A A A A B C C need manual disambiguation! Map to Wikipedia/DBpedia Name 3 B A B C 1 alize to RDF with dereferenceable URI erve data as literals with minimal parsing 2 3 4 5 6
description
Data- gov Wiki: Towards Linked Government Data. Tetherless World. DATA-GOV. Map to Wikipedia/ DBpedia Name. Li Ding 1 , Dominic DiFranzo 1 , Sarah Magidson 2 , Deborah L. McGuinness 1 , Jim Hendler 1 - PowerPoint PPT Presentation
Transcript of Linked Data
Linked Data
Government data in RDF
US-COMMUNITY(2005-2007)
CASTNET(1990 – Present)
RECS(2005)
GOV-BUDGET(1962-2014)
TOXIC-RELEASE(2005-2008)
EARTHQUAKE(Present)
STATE-LIB(2005-2007)PUBLIC-LIB
(1992-2006)
MED-COST(1994-2009)
LABOR-STAT(19xx-Present)
DATA-GOV-CATALOG(present)
US agency US location
GeoNames
CASTNET sites
ITSpending(2008-2010)
Community
Public Services
Environment
LODCloud
Government
Data-gov Wiki:Towards Linked Government DataLi Ding1, Dominic DiFranzo1, Sarah Magidson2, Deborah L. McGuinness1, Jim Hendler1
1Tetherless World Constellation, Rensselaer Polytechnic Institute, 110 8th St, Troy, NY 12180, USA2University of Chicago, 5801 South Ellis Avenue, Chicago, IL 60637, USA{dingl,difrad,dlm,hendler}@cs.rpi.edu [email protected]
… http://data-gov.tw.rpi.eduAcknowledgements: This work is partially supported by NSF Award #0524481,IARPA Award #FA8750-07-2-0031, and DARPA award #FA8750-07-D-0185, #55-002001, #FA8650-06-C-7605.
1. link similar datasets by reusing property namespace2. link to rdfs:label (via rdfs:subPropertyOf) using semantic wiki3. link to DBpedia (via owl:sameAs) using wikipedia widget 4. link instances (via common <property, literal-value> pair)5. link government data with web data (via time and location)6. link revisions of government data (via knowledge provenance)
A. render SPARQL results by Exhibit, Google Visualization,… B. integrate Web users’ collectively contributed dataC. inform Web users changes of dataset via RSS and Twitter
Linking Government Data
Using Linked Government Data
semantic web enabled portal for linked government data 5 billion triples from data.gov hosts apps, demos & services integrates users’ contributions
About Data-gov Wiki 1
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4
5
A
A2
A
AA
A B
CC
need manual disambiguation!
Map to Wikipedia/DBpedia Name
3B
ABC
1
normalize to RDF with dereferenceable URIpreserve data as literals with minimal parsing
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