オントロジー (情報科学)
発行されたオントロジーの例

Basic Formal Ontology, a formal upper ontology designed to support scientific research
BioPAX, an ontology for the exchange and interoperability of biological pathway (cellular processes) data
BMO, an e-Business Model Ontology based on a review of enterprise ontologies and business model literature
CCO (Cell Cycle Ontology), an application ontology that represents the cell cycle
CContology (Customer Complaint Ontology), an e-business ontology to support online customer complaint management
CIDOC Conceptual Reference Model, an ontology for cultural heritage
COSMO, a Foundation Ontology (current version in OWL) that is designed to contain representations of all of the primitive concepts needed to logically specify the meanings of any domain entity.  It is intended to serve as a basic ontology that can be used to translate among the representations in other ontologies or databases.  It started as a merger of the basic elements of the OpenCyc and SUMO ontologies, and has been supplemented with other ontology elements (types, relations) so as to include representations of all of the words in the Longman dictionary defining vocabulary.
Cyc, a large Foundation Ontology for formal representation of the universe of discourse.
Disease Ontology, designed to facilitate the mapping of diseases and associated conditions to particular medical codes
DOLCE, a Descriptive Ontology for Linguistic and Cognitive Engineering
Dublin Core, a simple ontology for documents and publishing
Foundational, Core and Linguistic Ontologies
Foundational Model of Anatomy, an ontology for human anatomy
Friend of a Friend, an ontology for describing persons, their activities and their relations to other people and objects
Gene Ontology for genomics
Gellish English dictionary, an ontology that includes a dictionary and taxonomy that includes an upper ontology and a lower ontology that focusses on industrial and business applications in engineering, technology and procurement. See also Gellish as Open Source project on SourceForge.
Geopolitical ontology, an ontology describing geopolitical information created by Food and Agriculture Organization(FAO). The geopolitical ontology includes names in multiple languages (English, French, Spanish, Arabic, Chinese, Russian and Italian); maps standard coding systems (UN, ISO, FAOSTAT, AGROVOC, etc); provides relations among territories (land borders, group membership, etc); and tracks historical changes. In addition, FAO provides web services (http://www.fao.org/countryprofiles/webservices.asp?lang=en) of geopolitical ontology and a module maker (http://www.fao.org/countryprofiles/geoinfo/modulemaker/index.html) to download modules of the geopolitical ontology into different formats (RDF, XML, and EXCEL). See more information on the FAO Country Profiles geopolitical ontology web page (http://www.fao.org/countryprofiles/geoinfo.asp?lang=en).
GOLD, General Ontology for Linguistic Description
GUM (Generalized Upper Model), a linguistically-motivated ontology for mediating between clients systems and natural language technology
IDEAS Group, a formal ontology for enterprise architecture being developed by the Australian, Canadian, UK and U.S. Defence Depts.
Linkbase, a formal representation of the biomedical domain, founded upon Basic Formal Ontology.
LPL, Lawson Pattern Language
NIFSTD Ontologies from the Neuroscience Information Framework: a modular set of ontologies for the neuroscience domain. See http://neuinfo.org
OBO Foundry, a suite of interoperable reference ontologies in biomedicine
Ontology for Biomedical Investigations, an open access, integrated ontology for the description of biological and clinical investigations
OMNIBUS Ontology, an ontology of learning, instruction, and instructional design
Plant Ontology for plant structures and growth/development stages, etc.
POPE, Purdue Ontology for Pharmaceutical Engineering
PRO, the Protein Ontology of the Protein Information Resource, Georgetown University.
Program abstraction taxonomy program abstraction taxonomy
Protein Ontology for proteomics
Suggested Upper Merged Ontology, a formal upper ontology
Systems Biology Ontology (SBO), for computational models in biology
SWEET, Semantic Web for Earth and Environmental Terminology
ThoughtTreasure ontology
TIME-ITEM, Topics for Indexing Medical Education
UMBEL, a lightweight reference structure of 20,000 subject concept classes and their relationships derived from OpenCyc
WordNet, a lexical reference system
YAMATO, Yet Another More Advanced Top-level Ontology
The W3C Linking Open Data Community Project coordinates attempts to converge different ontologies into worldwide Data Web.