AGROVOC Thesaurus 1980 s developed as multilingual structured

AGROVOC Thesaurus

• 1980 s: 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 languages

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

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)

FAO Authority Description Concept Scheme

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 nonpreferred forms – Subjects, concept-to-concept relationships, geoographic information… – Authority records identified with URIs, expressed in RDF, with SPARQL endpoint

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 more

Vocabularies used in FADCS • • • SKOS BIBO FOAF DCTERMS RDA

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 languages

AGRIS

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)

AGRIS usage scenarios • Kenyan research center sends batch of records to AGRIS for normalization using FADCS • Indexer uses Agro. Tagger 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 records

AGRIS vocabularies • • • SKOS BIBO FOAF DCTERMS AGROVOC

Topics of AGRIS • SW. LINKING • SW. IDENTIFIERS-RWO