LusTRE: a Linked Thesaurus
fRamework for Environment
Riccardo Albertoni1, Monica De Martino1, Paola Podestà1, Paolo Plini2
1CNR-IMATI,
Via De Marini, 6, Torre di Francia, 16149 Genova, Italia
{name.surname}@ge.imati.cnr.it
2CNR-IIA-EKOLab - Via Salaria Km 29,300 C.P. 10,I-00016 Monterotondo
stazione RM, Italia, [email protected]
W3C-IT LOD 2014, Rome, Italy, 20-21 Feb 2014
INSPIRE vs thesauri
INSPIRE implementation rules
•  recommend the adoption of (multilingual) thesauri when
compiling metadata for data/services
However
Different thesauri have been developed, and may be deployed for
cataloguing the geographical, e.g.,
DMEER/Treats
Biodiversity By
Biogeographical Regions
Id1
skos:broder
skos:broder
skos:broder
skos:broder
skos:broder
Id3
Skos:ExactMatch
IUCN Classification
Id4
Id1
????
skos:broder
Skos:ExactMatch
???
Id6
????
skos:broder
Id2
Id3
Id5
GEMET
Published by EEA
According to Linked Data
Best Practice
Id1
Skos:ExactMatch
Id2
Id3
Id4
Id3
Id1
Id1
Skos:RelatedMatch
Id6
Id2
skos:related
Id6
Id6
AGROVOC
EARTh
GEMET
THiST
…
Thesauri are heterogeneous wrt thematic coverage, multilinguality,
granularities, popularity in certain communities
Heterogeneity is precious!!!
LusTRE: Enabling Thesauri Joint Exploitation
Modularity
To add new KOS
as a new module
Openness
plugged
in the set
of thesauri
in
the
To easily
extend
each
KOS
Interlinking
TF
Design Principle (NatureSDIPlus 2009-2011)
keeping separated the original one
Linking among the terms referring
Exploitability
to the same concepts in more then
To encode in a standard and flexible format
one
thesaurus in order to harmonize
in order to encourage the adoption and its
their usage.
enrichment from third party system
Simple Knowledge Organization System
(SKOS) to encode the thesaurus content
Linked Data best practices
to publish the thesaurus in machine
understandable format
De Martino M. and Albertoni R., A multilingual/multicultural semantic-based approach to improve
Data Sharing in a SDI for Nature Conservation, IJSDIR, vol.6, ISSN 1725-0463, pp. 206-233, 2011
TF Extension (eENVplus 2013-2015)
Ø Publication of further thesauri not yet
exposed as Linked data
Ø Interlinking with well-known LOD
environmental related thesauri
Common Thesaurus
Framework (TF)
Ø Services to access LusTRE and crosswalking from a thesaurus to another
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What is available as result of NatureSDIPlus?
Thesaurus Framework for Nature Conservation
INSPIRE Themes:
Habitat and biotopes, Species distribution,
Biogeographical regions, Protect sites
GEMET
Published by EEA
According to Linked Data
Best Practice
Id1
Skos:ExactMatch
Id3
EARTH
skos:broder
Id4
Id4
skos:related
Id5
Id5
???
Id6
Id6
skos:broder
Id1
Id1
skos:broder
????
skos:broder
????
Id2
skos:broder
skos:broder
Id3
skos:broder
Id1
Id1
Id1
skos:broder
skos:broder skos:broder
Id2
Eunis Habitat Types NATURE 2000 A I
Id3
Id3
skos:related
Id2
Id2
Id6
Id4
skos:broder
skos:broder
Skos:RelatedMatch
Id3
Skos:ExactMatch
Skos:ExactMatch
Id3
Id2
Id1
Id1
skos:broder
Id1
skos:broder
DMEER/Treats
Biodiversity By
Biogeographical Regions
skos:broder
Id3
IUCN Classification
skos:related
skos:related
Id2
Eunis SpeciesSkos:RelatedMatch
Id6
Id6Id6
Id6
Candidate List of Terminological resources
to be considered in LusTRE
Survey on Environmental Thesauri
Terminologies in the LOD to be interlinked
Terminologies to be included in the TF
•  AGROVOC,
•  ShowTerm,
•  Eurovoc,
•  EOSterm,
•  SoilThes,
•  UMTHES,
•  NERC,
•  ThIST
•  ThesSoz,
•  I n s p i r e I F C D a n d I N S P I R E
Glossary
•  Geological Survey of Austria (GBA)thesaurus,
•  EEA-EIONET Data Dictionaries
•  EnvThes
•  EEA-EIONET AQ pollutants
•  O n e G e o l o g y, I U G S – C G I
vocabularies
M. De Martino (CNR-IMATI), R. Albertoni (CNR-IMATI), P.Podestà(CNR-IMATI), C. Cipolloni
(ISPRA) P. Plini (CNR-IIA), D 4.1 – Survey on environmental thesauri, eENVplus, December
2013
5
Server re-engineering
we moved from D2R +Mysql to Virtuoso +
Pubby to have
+ More flexibility (Named Graph)
+ Better performance
+ Materialization of SKOS entailments
EARTh Interlinking
to
n 
n 
n 
n 
n 
GEMET
AGROVOC
UMTHES
DBPEDIA
EUROVOC
n EARTh included into the Linked Open Data Cloud:
http://datahub.io/it/dataset/environmental-applications-reference-thesaurus
Albertoni R., De Martino M., Di Franco S., De Santis V., Plini P.:
EARTh: An Environmental Application Reference Thesaurus in the Linked Open Data cloud.
Semantic Web, Vol. 5, No. 2, DOI.10.3233/SW-130122, 2014
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Future actions
Further thesauri and linksets (end of the year)
Evaluation of provided content
•  Quality of thesauri included in LusTRE, e.g., deploying
qSKOS
Suominen, O., Mader, C.: Assessing and Improving the Quality of SKOS
Vocabularies. J. Data Semant. (2013).
•  Quality and usefulness of Linkset
•  We are developing in-house quality measures for
Linksets extending
Albertoni R., Gómez-Pérez A.: Assessing linkset quality for
complementing third-party datasets. LDWM 2013: 52-59, 2013
Conclusions
… Waiting for next LusTRE’s release … We invite you:
¨ To take a look at the Thesaurus Framework at:
http://linkeddata.ge.imati.cnr.it:2020
¨ To check if a term is contained in TF at:
http://linkeddata.ge.imati.cnr.it:8890/fct/
¨ To access the SPARQL ENDPOINT at:
http://linkeddata.ge.imati.cnr.it:8890/sparql
¨ To querying thesaurus concepts, relationships thesaurus
¨ To mappings between EARTh to GEMET, AGROVOC, UMTHES…
¨ To build your own services/application on the TF
¨ To interlink your vocabularies/thesauri with LusTRE’s thesauri
For info and support contact
[email protected] [email protected]
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Further in-house technology
SSONDE,
•  a Open Source Framework,
•  providing an instance similarity
•  enabling in a detailed comparison and ranking of resources
through the comparison of their RDF ontology driven metadata
•  code available at https://code.google.com/p/ssonde/
Albertoni R, De Martino M: SSONDE: Semantic Similarity on LiNked Data Entities.
MTSR 2012: 25-36
Albertoni R., De Martino, M: Asymmetric and Context-Dependent Semantic Similarity
among Ontology Instances. J. Data Semantics 10: 1-30 (2008)