1980s developed as multilingual structured thesaurus for agricultural terminology rice 20002009 parallel effort to express thesaurus as hierarchy of OWL classes 2009 converted into SKOSXL ID: 422037
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AGROVOC ThesaurusSlide2
1980s: developed as multilingual structured thesaurus for agricultural terminology (“rice”)
2000-2009: parallel effort to express thesaurus as hierarchy of OWL classes
2009+: converted into SKOS-XL
Terms translated into more than fifteen languagesSlide3
Use case scenario
An indexer creating a bibliographic record uses AGROVOC
Agrotagger
Web service to search on the name of a fish in Arabic.
Retrieves related synonyms and scientific names for the fish
Pastes into the record Slide4
Topics of AGROVOC
SW.CROSS-LINKING-VOCABS: facilitates vocabulary federation
“easier to express alignments with other agricultural
thesaurri
in an interoperable and reusable way”
SW.LINKING: links between AGROVOC and data using AGROVOC
LLD.SKOS-MULTILINGUAL
Navigating concept schemes (actually a requirement of SKOS)Slide5
FAO Authority Description Concept SchemeSlide6
Authority control lists
Concept-based system for representing traditional authority control lists
for Corporate Bodies, Conferences, Series, Journals, Projects
Labels in 15 languages: both preferred and non-preferred forms
Subjects, concept-to-concept relationships,
geoographic
information…
Authority records identified with URIs, expressed in RDF, with SPARQL endpointSlide7
Usage scenario
Searcher retrieves an authorized literal form (which is associated with authority record URI)
To deposit a journal paper in a repository, use Web services to display FADCS records and copy information about the journal into local database
Record for a journal links to a Directory of Open Access Journals for discovering moreSlide8
Vocabularies used in FADCS
SKOS
BIBO
FOAF
DCTERMS
RDASlide9
Topics of FADCS
SW.CROSS-LINKING-VOCABS with other (authority) vocabularies in the cloud
SW.LINKING: e.g., to geographic entities
Concepts with labels in multiple languagesSlide10
AGRISSlide11
AGRIS bibliographic database
String-based XML data from 150 agricultural research institutes, 100 countries, for 35 years, 2.6 million records
People search AGRIS to find that something exists, then Google to locate it
At ingest, FAO Authority control (see FADCS)
Strategy to convert into RDF, publish as linked data
Strategy to cite URIs of other linked data sets (e.g., subject vocabularies, authority control, bibliographic records)Slide12
AGRIS usage scenarios
Kenyan research center sends batch of records to AGRIS for normalization using FADCS
Indexer uses
AgroTagger
to extract keywords from submitted records and generate a list of relevant related keywords
Searchers will be able to click on displayed record fields to browse related AGRIS recordsSlide13
AGRIS vocabularies
SKOS
BIBO
FOAF
DCTERMS
AGROVOCSlide14
Topics of AGRIS
SW.LINKING
SW.IDENTIFIERS-RWO