Global Agricultural Concept Space (GACS)

Global Agricultural Concept Space (GACS) is a namespace for global identifiers of concepts related to agriculture, in the broadest sense, and grouped into (potentially overlapping) concept schemes.

The first GACS concept scheme, GACS Core, was created between 2014 and 2016 by a joint working group of the Food and Agriculture Organization of the United Nations, CAB International (CABI), and the National Agricultural Library of the USDA (NAL) and substantially improved and revised by Lori Finch with a quality control project in 2017. Work on GACS Core was substantially facilitated by the Global Open Data for Agriculture and Nutrition (GODAN). The GACS namespace is currently owned by CABI, which coordinates the GACS Working Group along with the French Institut National de la Recherche Agronomique (INRA).

GACS Core is a concept scheme with circa 15,000 concepts selected from, and mapped to, the most frequently used concepts of three larger concept schemes: AGROVOC (FAO), CAB Thesauris (CABI), and NAL Thesaurus (NAL). The editorial policies for GACS follow best practices of modern thesaurus design as reflected in ISO 25964, "Thesauri and interoperability with other vocabularies", and is expressed in Simple Knowledge Organization System (SKOS), with some extensions, for publication as Linked Data.

Browse GACS online

Version 4.0 of GACS can be viewed, navigated and searched in a browser for human readable consumption via the Skosmos instance.

Download GACS

Version 4.0 of GACS can be downloaded as a ZIP file holding the main concept scheme for GACS in the Turtle and RDF/XML formats.

Contribute

All are welcome. We currently use the issue tracker on the gacs-scheme github repository to log requests, bugs, and discuss additions and edits. Please also sign up for the mailing list!

GACS Reference material

[1] T. Baker and O. Suominen, “GACS: Recommendations for improvements to the thesauri,” Jun. 2014.
[2] T. Baker and O. Suominen, “Global Agricultural Concept Scheme (GACS): A multilingual thesaurus hub for Linked Data,” Aug. 2014.
[3] T. Baker and O. Suominen, “GACS: Status quo of three partner thesauri - Version 1.0,” Food and Agriculture Organization of the United Nations - Agricultural Information Management Standards, 2014.
[4] T. Baker, C. Caracciolo, L. Finch, and P. Roberts, “Organizations at the Workshop ‘Improving Semantics in Agriculture,’” Food and Agriculture Organization of the UN, Rome, Italy, Aug. 2015.
[5] T. Baker, C. Caracciolo, and Y. Jaques, “Report on the Workshop ‘Improving Semantics in Agriculture,’” Food and Agriculture Organization of the UN, Rome, Italy, Jul. 2015.
[6] T. Baker, C. Caracciolo, A. Doroszenko, and O. Suominen, “GACS Core: Creation of a Global Agricultural Concept Scheme,” in Metadata and Semantics Research, 2016, pp. 311–316.
[7] T. Baker, “Global Agricultural Concept Scheme: GACS and Agrisemantics,” presented at the IC-Foods 2016, UC Davis, Davis, CA, USA, 05-Nov-2016.
[8] T. Baker, “Global Agricultural Concept Scheme: GACS and Agrisemantics,” presented at the DC-2016, Copenhagen, Denmark, 13-Oct-2016.
[9] C. Caracciolo, T. Baker, and E. Arnaud, “Global Agricultural Concept Scheme: A Hub for Agricultural Vocabularies,” in Proceedings of the Joint International Conference on Biological Ontology and BioCreative, Corvallis, OR, USA, 2016, p. 3.
[10] T. Baker, “Workshop on the future of GACS: Analytical summary,” Geottingen State and University Library, Geottingen, Germany, Feb. 2017.
[11] T. Baker, “Workshop on the future of GACS: Report,” Geottingen State and University Library, Geottingen, Germany, Feb. 2017.
[12] L. Finch, “GACS Quality Improvement Project,” 05-Dec-2017.
[13] T. Baker and J. Keizer, “Global Agricultural Concept Space (GACS) as a Backbone for Interoperability,” Mar. 2018.
[14] T. Baker, B. Whitehead, R. Musker, and J. Keizer, “Global Agricultural Concept Space: lightweight semantics for pragmatic interoperability,” AgriXiv, p. 28, Apr. 2019.

Creative Commons License

The Global Agricultural Concept Space (GACS) is licensed by the GACS Working Group under a Creative Commons Attribution 4.0 International License.