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  • oum - Ontology of units of Measure (OM)
    http://www.ontology-of-units-of-measure.org/resource/om-2/
    The Ontology of units of Measure (OM) 2.0 models concepts and relations important to scientific research. It has a strong focus on units, quantities, measurements, and dimensions. @en
  • duv - Dataset Usage Vocabulary
    http://www.w3.org/ns/duv
    The Dataset Usage Vocabulary (DUV) is used to describe consumer experiences, citations, and feedback about datasets from the human perspective. @en
  • rov - Registered Organization Vocabulary
    http://www.w3.org/ns/regorg
    The Registered Organization Vocabulary is a profile of the Organization Ontology for describing organizations that have gained legal entity status through a formal registration process, typically in a national or regional register. @en
  • uiot - Urban IoT Ontologies - Core Module
    http://www.w3id.org/urban-iot/core
    Core module of the suite of ontologies for urban IoT devices. @en
  • uiote - Urban IoT Ontologies - Electric Mobility Module
    http://www.w3id.org/urban-iot/electric
    Electric Mobility module of the suite of ontologies for urban IoT devices. @en
  • uiots - Urban IoT Ontologies - Sharing Mobility Module
    http://www.w3id.org/urban-iot/sharing
    Sharing Mobility module of the suite of ontologies for urban IoT devices. @en
  • solid - Solid terms
    http://www.w3.org/ns/solid/terms
    Solid terms @en
  • atm - Air Traffic Management (ATM) Vocabulary
    https://data.nasa.gov/ontologies/atmonto/ATM#
    Defines specific air traffic management concepts used in aircraft navigation through the US National Airspace System @en
  • nas - US National Airspace System (NAS) vocabulary
    https://data.nasa.gov/ontologies/atmonto/NAS#
    Defines concepts related to the structure of the US National Airspace System (NAS) @en
  • eqp - Aircraft Equipment Vocabulary
    https://data.nasa.gov/ontologies/atmonto/equipment#
    Defines aircraft models, aircraft systems / subsystems, and aircraft characteristics @en
  • atd - Air Traffic Data
    https://data.nasa.gov/ontologies/atmonto/data#
    Defines concepts related to airport status, including weather, forecasts, and airport operations @en
  • airs - Alliance of Information and Referral Services (AIRS) Vocabulary
    https://raw.githubusercontent.com/airs-linked-data/lov/latest/src/airs_vocabulary.ttl#
    The AIRS Linked Open Vocabulary is a way to describe human services information and referral (I&R) concepts. AIRS is the Alliance of Information and Referral Services (airs.org), which possesses over 1,000 member agencies primarily in the United States and Canada. The AIRS LOV is based on the AIRS XML Schema, available at: https://airs-xml.googlecode.com/hg/tags/3.1/airs.xsd @en
  • ibis - IBIS Vocabulary
    https://privatealpha.com/ontology/ibis/1#
    This document specifies a vocabulary for describing an IBIS (issue-based information system). @en
  • ce - CityExplorer Ontology
    https://purl.org/cityexplorer
    This ontology models personalized tourist experiences by representing cities, points of interest, events, accommodations, restaurants, transportation, and their relationships. This ontology is part of a university project. @en
  • apco - African Public Contract Ontology
    https://purl.org/cm/onto/apco
    APCO is an ontology that allows the description of public procurement terms @en