Protégé is a free, open source ontology editor and knowledge-base framework. The Protégé platform supports two main ways of modeling ontologies via the Protégé-Frames and Protégé-OWL editors. Protégé ontologies can be exported into a variety of formats including RDF(S), OWL, and XML Schema. (more) Protégé is based on Java, is extensible, and provides a plug-and-play environment that makes it a flexible base for rapid prototyping and application development. (more)
Many biomedical terminologies, classifications, and ontological resources such as the NCI Thesaurus (NCIT), International Classification of Diseases (ICD), Systematized Nomenclature of Medicine (SNOMED), Current Procedural Terminology (CPT), and Gene Ontology (GO) have been developed and used to build a variety of IT applications in biology, biomedicine, and health care settings
The Lexical Grid LexGrid provides support for a distributed network of lexical resources such as terminologies and ontologies via standards-based tools, storage formats, and access/update mechanisms.
One of my collegaues called the other day and asked if we still relied on the distinction between intensional and extensional sets (really intensionally and extensionally defined sets). Yes, even more so now.
This document describes an ontology for publishing descriptions of historical events as Linked Data, and for mapping between other event-related vocabularies and ontologies.
J. Attard, S. Scerri, I. Rivera, and S. Handschuh. Proceedings of the 9th International Conference on Semantic Systems, page 113--120. New York, NY, USA, ACM, (2013)
M. Falis, H. Dong, A. Birch, and B. Alex. Proceedings of the 21st Workshop on Biomedical Language Processing, page 389--401. Dublin, Ireland, Association for Computational Linguistics, (May 2022)
M. Falis, H. Dong, A. Birch, and B. Alex. Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing, page 907--912. Online and Punta Cana, Dominican Republic, Association for Computational Linguistics, (November 2021)