Metadata standards

General

• Countries names – @prefix country: <http://dd.eionet.europa.eu/vocabulary/common/countries/> .
• DBpedia – defining concepts @prefix dbo: <http://dbpedia.org/ontology/> .
• DBpedia – defining resources @prefix dbr: <http://dbpedia.org/resource/> .
• Dublin Core – @prefix dc: <http://purl.org/dc/elements/1.1/> .
• Fundamental data types – @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
• Geographic information – @prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
• Geopolitical terms – @prefix geop: <http://aims.fao.org/aos/geopolitical.owl#> .
• Media resources ontology – @prefix ma: <http://www.w3.org/ns/ma-ont#> .
• Microsoft standard for data cleaning/governance concepts – @prefix grel: <http://users.ugent.be/~bjdmeest/function/grel.ttl#> .
• Physical units – @prefix qudt-unit-1-1: <http://qudt.org/1.1/vocab/unit#> .
• RDF – @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
• Schema.org – @prefix schema: <http://schema.org/> .
• WIKIDATA – @prefix wikidata: <https://www.wikidata.org/wiki/> .

Researchers and institutions

• GLEIF for legal forms ontology – @prefix gleif: <https://www.gleif.org/ontology/Base/> .
• GLEIF for legal forms ontology@prefix gleif-elf: <https://www.gleif.org/ontology/EntityLegalForm-v1.0/EntityLegalForm/>.
• GLEIF for legal forms ontology@prefix gleif-L1: <https://www.gleif.org/ontology/L1/> .
• ORCID – @prefix orcid: <http://www.orcid.org/> .
• Registered organisations ontology – @prefix rov: <http://www.w3.org/ns/regorg#> .
• Research Organisation Registry https://ror.org#> .

Economic sectors

• Economic Sectors – @prefix nace: <https://dd.eionet.europa.eu/vocabulary/eurostat/nace_r2/> .
• Extensible Business Report Language – @prefix xbrll: <https://w3id.org/vocab/xbrll#> .

Energy domain terminology

• SIEC – International Energy Product Classification Standard – @prefix siec: <http://dd.eionet.europa.eu/vocabulary/eurostat/siec/> .
• Open Energy Ontology – @prefix oeo: <http://openenergy-platform.org/ontology/oeo/> .

Other, ontologies, thesauri etc. in energy

1. Energy Management Applications (OEMA). Creating ontologies can be a very tedious task if done by hand. Therefore, it is crucial to automatize this procedure. Details can be found in the Wikipedia article on Ontology learning. Examples for the energy sector are: Javier Cuenca et al. A Unified Semantic Ontology for Energy Management Applications.