Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Linked Location
Data as a Service
Linking Geospatial Data
5th - 6th March 2014,
Google Campus London, Shoreditch
Stijn Goe...
DATA CONSUMER

Lack of common identifiers

Unlinked
Low quality
Non-interoperable

UrBIS - Brussels
Capital Region

AGIV -...
Core Location Vocabulary
• A simplified, reusable and extensible data model that
captures the fundamental characteristics ...
Core Location Task Force
• co-chairs: Michael Lutz, Paul Smits, Andrea Perego (DG

JRC)
• editor: Phil Archer (W3C)
• task...
3 representation formats
Conceptual
model
Re-use
existing
concepts in
CCL, INSPIRE,
etc.

RDF
schema

Re-uses
existing
Lin...
W3C Location and Address
Community
• The W3C Location and Addresses Community Group is to
review the existing efforts such...
DATA CONSUMER
lookup, disambiguate, link

Xquery,
Xpath

•

SPARQL endpoint
Linked address data
Common Data models
INSPIRE...
Combining XML, RDF, and Linked
Data
XML Client

RDF Client

Web Browser

HTTP
Web Application
Server
XML
Processor

SPARQL...
Three use cases for data consumers
UC3: Link datasets
by means of
address identifiers

UC2: Look up (de-

Address
Identifi...
UC1: Disambiguate (query) address
notations
• SPARQL query on
the triple store

• The query is

converted into SQL
and hit...
UC2: Resolve Web identifiers

11
UC3: Link address data

12
UC3: Link address data

13
Conclusions
• Core Location ánd INSPIRE AD can be used to
harmonise address data from disparate systems
• Core Location ca...
SEMIC 2014 – Athens, 9 April

http://semic.eu

15
ISA Programme Action 1.1 –
Semantic Interoperability
Project Officer
Contractors

Vassilios.Peristeras@ec.europa.eu
Stijn....
Upcoming SlideShare
Loading in …5
×

Linked Location Data as a Service

1,271 views

Published on

Presentation based on position paper submitted for
Joint W3C/OGC workshop: Linking Geospatial Data
5th - 6th March 2014, Campus London, Shoreditch
http://www.w3.org/2014/03/lgd/agenda#al58

Geographic information is provided in heterogeneous formats, creating technical and semantic barriers that hinder data consumers to combine data from various sources. Linked Data design principles can help alleviate these barriers and realise three generic use cases for data consumers to consume location data as linked data. We have demonstrated the technical feasibility for this in a Linked Data pilot that integrates address data from five different public sector organisations in Belgium. The pilot demonstrates that a Linked Data layer can be built on top of an existing geospatial implementation with a minimum of effort. It also shows that URI sets for INSPIRE spatial objects and spatial things can accommodate both XML (GML) and RDF representations.

Published in: Technology
  • Be the first to comment

Linked Location Data as a Service

  1. 1. Linked Location Data as a Service Linking Geospatial Data 5th - 6th March 2014, Google Campus London, Shoreditch Stijn Goedertier – PwC EU Services Nikolaos Loutas – PwC EU Services Vassilios Peristeras – European Commission 5 March 2014 ISA Programme, Action 1.1 Presentation based on position paper submitted for Joint W3C/OGC workshop: Linking Geospatial Data 5th - 6th March 2014, Campus London, Shoreditch http://www.w3.org/2014/03/lgd/agenda#al58
  2. 2. DATA CONSUMER Lack of common identifiers Unlinked Low quality Non-interoperable UrBIS - Brussels Capital Region AGIV - Flanders Heterogeneous data formats ? Data fragmentation PICC - Wallonia NGI – National Geographic Institute Civil register 2
  3. 3. Core Location Vocabulary • A simplified, reusable and extensible data model that captures the fundamental characteristics of a location, represented as an address, a geographic name, or a geometry. • Developed in the period December 2011 – May 2012 by a multi disciplinary Working Group 3
  4. 4. Core Location Task Force • co-chairs: Michael Lutz, Paul Smits, Andrea Perego (DG JRC) • editor: Phil Archer (W3C) • task force: Segun Alayande, Adam Arndt, Joseph Azzopardi, Chirsina Bapst, Serena Coetzee, Andreas Gehlert, Giorgios Georgiannakis, Anja Hopfstock, Andreas • Illert, Michaela Elisa Jackson, Morten Lind, Matthias Lüttgert, Andras Micsik, Piotr Piotrowski, Greg Potterton, Peter Schmitz, Raj Singh, Athina Trakas, Rob Walker, Stuart Williams, Peter Winstanley, ... 4
  5. 5. 3 representation formats Conceptual model Re-use existing concepts in CCL, INSPIRE, etc. RDF schema Re-uses existing Linked Data vocabularies XML schema Re-uses Core Components Technical Specification (CCTS). ISA Open Metadata Licence v1.1 Maintained by W3C (W3C Location and Address Community) 5
  6. 6. W3C Location and Address Community • The W3C Location and Addresses Community Group is to review the existing efforts such as the Core Location Vocabulary and assess whether any use cases would be served by harmonization and/or new standardization work. • It may produce specifications or use cases and requirements documents, which may be proposed for adoption by the W3C Government Linked Data (GLD) Working Group 6
  7. 7. DATA CONSUMER lookup, disambiguate, link Xquery, Xpath • SPARQL endpoint Linked address data Common Data models INSPIRE XML view RDF view XML and RDF views on relational data served over a Web interface LOGD INFRASTRUCTURE sample address data in native format UrBIS - Brussels Capital Region CRAB - Flanders PICC - Wallonia NGI – National Geographic Institute Civil register 7 Core Location Pilot: https://joinup.ec.europa.eu/node/63242
  8. 8. Combining XML, RDF, and Linked Data XML Client RDF Client Web Browser HTTP Web Application Server XML Processor SPARQL engine SQL Processor RDF Quad Store relational database external database OpenLink Virtuso 8
  9. 9. Three use cases for data consumers UC3: Link datasets by means of address identifiers UC2: Look up (de- Address Identifier Example: http://location.testproject .eu/so/ad/AddressReprese ntation/SPW/248565 reference) an address identifier UC1: Disambiguate (reconcile) an address notation Address Notation Example: Chaussée de Bruxelles 135 1310 La Hulpe 9
  10. 10. UC1: Disambiguate (query) address notations • SPARQL query on the triple store • The query is converted into SQL and hits the relational tables of several data providers
  11. 11. UC2: Resolve Web identifiers 11
  12. 12. UC3: Link address data 12
  13. 13. UC3: Link address data 13
  14. 14. Conclusions • Core Location ánd INSPIRE AD can be used to harmonise address data from disparate systems • Core Location can be easily extended with (still experimental) INSPIRE RDF vocabularies • URI sets for INSPIRE spatial objects and spatial things can accommodate both the XML (GML) and RDF world 14
  15. 15. SEMIC 2014 – Athens, 9 April http://semic.eu 15
  16. 16. ISA Programme Action 1.1 – Semantic Interoperability Project Officer Contractors Vassilios.Peristeras@ec.europa.eu Stijn.Goedertier@be.pwc.com Nikolaos.Loutas@be.pwc.com Visit our initiatives ADM S. SW CORE Get involved Follow @SEMICeu on Twitter Join SEMIC group on LinkedIn PUBLIC SERVICE VOCABULARY Join SEMIC community on Joinup

×