Linked Open Vocabularies

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

ostop- Ordnance Survey Topography Ontology

http://www.ordnancesurvey.co.uk/ontology/Topography/v0.1/Topography.owl

The general purpose of this ontology is to provide a library of high level concepts that are used by the other modules within the whole OS Topographic ontology. The ontology also describes the relationships and instances common to more than one module. @en

geo- WGS84 Geo Positioning

http://www.w3.org/2003/01/geo/wgs84_pos

A vocabulary for representing latitude, longitude and altitude information in the WGS84 geodetic reference datum. @en

locn- ISA Programme Location Core Vocabulary

http://www.w3.org/ns/locn

The ISA Programme Location Core Vocabulary provides a minimum set of classes and properties for describing any place in terms of its name, address or geometry. The vocabulary is specifically designed to aid the publication of data that is interoperable with EU INSPIRE Directive. @en

ssn- Semantic Sensor Network Ontology

http://www.w3.org/ns/ssn/

This ontology describes sensors, actuators and observations, and related concepts. It does not describe domain concepts, time, locations, etc. these are intended to be included from other ontologies via OWL imports. @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

sosa- Sensor, Observation, Sample, and Actuator (SOSA) Ontology

http://www.w3.org/ns/sosa/

This ontology is based on the SSN Ontology by the W3C Semantic Sensor Networks Incubator Group (SSN-XG), together with considerations from the W3C/OGC Spatial Data on the Web Working Group. @en

caso- Context Aware System Observation Ontology

http://www.w3id.org/def/caso#

CASO (Context Aware System Observation) is an ontology for context aware system and observation services. Its goal is to describe all the processing of the context. @en

atts- Air Traffic Temporal and Spacial Vocabulary

https://data.nasa.gov/ontologies/atmonto/general#

Defines temporal / spatial concepts and general-purpose datastructures @en

tresiot- Ontology for Trust Recommendation in Social Internet of Things

https://liidr.org/trust-recommendation-in-social-internet-of-things/

This ontology models trust recommendation concepts in SIoT to bridge the gap between abstract trust concepts and real-world device concepts. @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