The Common Core Ontology Repository holds the current released version of the Common Core Ontology suite.

Official repository for Semantic Web for Earth and Environmental Terminology (SWEET) Ontologies

YANGDB Open-source, Scalable, Non-native Graph database (Powered by Elasticsearch)

The official SNOMED CT OWL Toolkit. OWL conversion, classification and authoring support.

📚中国近代革命历史知识图谱系统 🌈提供了知识图谱可视化、知识检索、关系检索、时空检索、时空演化、语料检索、知识抽取、知识问答等丰富而有效的中国近代革命历史知识服务。

Bayesian OWL ontology merging

Maintenance and development of the EBUCorePlus

Your climate action is here 🌎 Our API is a source for learning how climate change personally affects you and the things you care about most. Additionally, it will teach a scientifically proven method for communicating to others that climate change is a personally relevant issue to inspire action.

Protégé Desktop plugin for defeasible reasoning in OWL ontologies using the style of Kraus, Lehmann and Magidor

Events and Situations Ontology

Sequoia is a consequence-based OWL 2 DL Reasoner supporting multithreaded reasoning

BDRC Ontology Schema

Een informatiemodel en objecttypenbibliotheek (né ontologie) voor assetbeheer van de openbare ruimte

Rust interface for the RDFox database

This is a curated semantic version of the PASCAL-Part dataset for part-based object detection. Objects are aligned with WordNet and Yago concepts. The dataset is both in PASCAL-Voc and RDF format.

This project uses the OWLApi to create an OWL ontology, in RDF/XML format, based on the content of standard SNOMED CT RF2 files.

專利本體論自動建置系統

Protégé plugin displaying inferred taxon constraints

MAtchmaking Features for mAchine Learning Data Analysis

{g0-Builder + J2RM}: KG construction package