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AGROVOC Thesaurus AGROVOC Thesaurus

AGROVOC Thesaurus - PowerPoint Presentation

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AGROVOC Thesaurus - PPT Presentation

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

authority agris agrovoc records agris authority records agrovoc concept fadcs linking record skos vocabularies data control languages thesaurus related

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Presentation Transcript

Slide1

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