AGROVOC Thesaurus

1980s: developed as multilingual structured thesaurus for agricultural terminology (“rice”) : 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 non- preferred 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 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 records

AGRIS vocabularies SKOS BIBO FOAF DCTERMS AGROVOC

Topics of AGRIS SW.LINKING SW.IDENTIFIERS-RWO