Datalift presentation at LOD2 project plenary meeting in Paris, 24/03/2011

1. Datalift: A Catalyser for the Web of Data
François Scharffe
LIRMM, University of Montpellier
francois.scharffe@lirmm.fr
@lechatpito
With the help of the Datalift team
And the support of the French National Research Agency
FOSDEM 5/02/2011 1

2. Datalift
Datasets publication
R&D to automate the publication process
Tool suite to assist data publication
Training, tutorials, data publication camps

3. Welcome aboard the data lift
Published and interlinked data on the Web
Applications
Interconnexion
Publication infrastructure
Data convertion
Vocabulary selection
Raw data

4. st
1 floor - Selection
SemWebPro 18/01/2011 4

5. Vocabulary of a Friend
Ø http://www.mondeca.com/foaf/voaf
Ø A simple vocabulary...
Ø To represent interconnexions between vocabularies
Ø A unique entry point to vocabularies and Datasets of
the linked-data cloud Linked Data Cloud

6. nd
2 floor - Conversion
SemWebPro 18/01/2011 6

7. Reference datasets, URI design
● Providing reference datasets for the French
ecosystem: geographical, topological, statistical,
political
● Providing URI design guidelines
● Opaque or transparent URIs ?
● Usage of accents in URIs
● Provenance and trust: modeling and reasoning

8. rd
3 floor - Publication
SemWebPro 18/01/2011 8

9. Analysis of RDF Stores : QSOS method
Ø Qualification and Selection of Open Source Software
§ Open Source project on open source solutions
§ http://www.qsos.org
Ø QSOS objectives
§ Qualify software
§ Compare solutions after defining requirements and weighting criterias
§ Select the most adapted product according to the needs
Ø QSOS provides
§ An objective and formalized method
§ A reference of available studies
§ Tools facilitating the method execution

10. Platform Architecture and Technologies
Ø In the browser toolkit
Ø Modular, internal RDF store
Ø REST
Ø Rich IHM, HTML5
Ø JQUery+JQuery UI
Ø Java 1.6+ / JEE 1.5+, Java RX (Jersey)
Ø Velocity templates
Ø Sesame 2.0

11. th
4 floor - Interconnection
SemWebPro 18/01/2011 11

12. Towards automated interconnexion services
Ø Automating data interlinking
Ø The linkage specification could be simplified
§ Using alignments between vocabularies
§ Detection of discriminating properties
§ Indicating comparison methods by attaching metadata to
ontologies

13. 5th floor - Applications
SemWebPro 18/01/2011 13

14. Ongoing data lifting effort
Ø IGN - geography, INSEE - statistics
Ø DILA – legal, documentation
Ø Regards Citoyens - citizen, political
Ø DataPublica - open data portal
Ø Etat-Lab – open data portal
Ø APIE – legal aspects (licensing)
Ø Sustainable development office - transport
Ø Cemagref - agricultural
Ø Urban communities of Montpellier, Bordeaux
Ø ...

15. Nos Députés . FR