http://2015.semantics.cc/tomas-knap

1. The COMSODE project has received funding from the Seventh Framework Programme
of the European Union in the grant agreement number 611358.
UnifiedViews in COMSODE pilot projects
Tomas Knap1,2, Jakub Klimek2
1EEA s.r.o.,
http://www.eea.sk/
2Charles University in Prague,
Department of Software Engineering,
XML and Web Engineering Research Group

2. Agenda
 UnifiedViews
 UnifiedViews in Open Data Node
 Pilot Applications
 Slovak Environmental Agency
 Czech Trade Inspection Authority

3. UnifiedViews

4. UnifiedViews
 A tool for management of RDF data processing tasks
 Task = progression of data processing units (DPUs)
 Sample task:
 Extract data from SPARQL Endpoint A
 Extract data from CSV file B
 Refine data with SPARQL queries X,Y, Z
 Deduplicate data using Linker L
 Publish data to SPARQL Endpoint B

5. RDF Data Processing Task

6. UnifiedViews
 UnifiedViews allows users to define, execute,
monitor, debug, schedule, and share tasks
 UnifiedViews is ETL tool for RDF data
 It differs from other ETL tools by natively
supporting RDF data
 UnifiedViews provides set of plugins (DPUs) for
working with RDF data and new custom plugins
may be easily created
 Open source, http://unifiedviews.eu

7. UnifiedViews Team
http://unifiedviews.eu

8. UnifiedViews Demo

9. UnifiedViews in Open Data Node

10. Open Data Node
 Publication platform for (Linked) Open Data
 Open Source
 Developed in COMSODE project
 2013-2015

11. Open Data Node
http://opendatanode.org/

12. Pilot Application
Slovak Environmental Agency

13. Mission of the Slovak Environmental Agency
(SEA)
 Policy support
 Design and Implementation
 Data provider/integrator
 LandCover, Environmental burden, waste dumps
 Infrastructure provider
 Data Services (DB servers)
 Consultancy provider
 Analysis and design of environmental information systems

14. Initial Situation/Motivation
 SEA publishes various geospatial data from the
environmental domain
 SEA wanted to explore potential to increase re-
use of their data if published as Linked data

15. Goals
 To publish as Linked Data datasets on:
 Protected sites, species distribution, bio-geographical regions, land
cover, contaminated sites registered as enviromental burdens
 Harvest and convert source data to RDF
 Source data is available in the Geography Markup Language (GML)
via an API provided by the Web Feature Service (WFS), typically in
INSPIRE format
 Initial barrier: the vocabularies mapping the INSPIRE XML schemas to
RDF were not available
 Interlink with relevant RDF/Linked data resources
 Provide visualizations, interface for querying

16. Approach and IT solution
 Successfully deployed ODN with UnifiedViews on
remote cloud infrastructure of SEA
 For each dataset we built a transforming data
processing pipeline in UnifiedViews, which harvested
the data from the data service and converted it to
RDF via XSL transformations.
 We also created pipelines for enriching the datasets
with links to external datasets
 We associated these pipelines with datasets in
catalog

17. Approach and IT solution
Data Transformation
 Since GML is an XML format we converted it to
RDF via XSL transformations.
 We extend XSL transformations developed by the
GeoKnow project (http://geoknow.eu)
 The target vocabularies produced by the
transformations were derived from the INSPIRE
schemas and were simplified and adjusted to match
linked data conventions
 Done in cooperation with SmartOpenData project
(http://www.w3.org/2015/03/inspire)

18. Approach and IT solution
Data Enrichment
 We link datasets to external datasets including
Geonames.org and datasets from the European
Environmental Agency:
 Biogeographical regions 2011
 Natura 2000
 EUNIS

19. Benefits of the Semantic Solution
 A key benefit of the RDF version of the SEA
datasets is that it is straightforward to combine it
with third-party datasets
 We did the linkage to GeoNames, Natura
2000 and EUNIS datasets

20. Lessons Learned
 Open Data Node (and UnifiedViews) was able
to transform, enrich and publish RDF data in a
simple way, allowing easy maintenance for the
future
 Making the data you publish adhere to common
standards, such as the INSPIRE schemas,
make it more reusable
 Reuse of XSL transformations from other projects

21. Next Steps
 Linking more third-party datasets and extending
the coverage of the source data included in the
RDF version
 Data visualizations are being designed
 Developed as extensions of LDVMi (http://ldvm.net).

22. Demo

23. Pilot Application
Czech Trade Inspection Authority

24. Mission of Czech Trade Inspection
Authority (CTIA)
 Monitors and inspects businesses and
individuals who
 Supply goods
 Sell goods
 Provide services
 Provided consumer credit
 Operate marketplaces

25. Initial Situation
 CTIA publishes CSV data about
 Inspections
 Penalties
 Bans

26. Motivation
 CTIA wanted to publish their data
 To be used by third-party applications
 Instead of building their own map
visualizations

27. Goals
 CTIA wanted to (and managed to) be the first
Czech administrative government institution to
publish data in RDF (LOD)
 CTIA wanted to publish additional anonymized
datasets

28. Approach and IT solution
 UnifiedViews successfully deployed and
pipelines prepared to publish the source data as
Linked Open Data

29. Benefits of the Semantic Solution
 A map application emerged
 Uses RDF data combined with other datasets
 Registry of Business Entities
 Google Maps

30. Lessons Learned and Next Steps
 Publishing data as LOD pays off
 Publishing data as LOD is not difficult
 All you need to start is a spare PC
 CTIA is in the process of implementing the
COMSODE methodology for publising open
data

31. Demo
 Resulting data published:
 http://www.coi.cz/cz/spotrebitel/open-data-
databaze-kontrol-sankci-a-zakazu/
 (in Czech)

32. Conclusions

33. Conclusions
 UnifiedViews
 http://unifiedviews.eu
 Open Data Node
 http://opendatanode.org
 Pilots:
 Slovak Environmental Agency
 Czech Trade Inspection Authority

34. UnifiedViews in COMSODE pilot projects
Tomas Knap1,2, Jakub Klimek2
1EEA s.r.o.,
http://www.eea.sk/
2Charles University in Prague,
Department of Software Engineering,
XML and Web Engineering Research Group