home kb Information and Knowledge Technologies Knowledge Representation and Discovery Ontologies Ontologies
External Links
Google
Google Scholar
Citeseer
provided by
German Research Center for Artificial Intelligence
with support by
through
as well as by
through
 

Ontologies

definition: From a theoretical point of view, ontology is the metaphysical study of the nature of being and existence. In practice, an ontology is normally viewed as a formal representation of all semantic objects and their connections in a Universe of Discourse. Mapping these semantic objects onto language units (words, phrases, text segments, etc.) is the task of semantic processing in NLP.
related organisation(s):
  • Laboratory for Applied Ontology (LOA)
related person(s):
related system(s) / resource(s):
  • OntoSelect (OntoSelect)
  • Watson (Watson)
  • Sigma Knowledge Engineering Environment
  • Medical Subject Headings
  • OWL Ontology Library
  • OntoBroker (Inference Engine)
  • OntoMat (Ontology-based Annotation Tool)
  • CyC Knowledge Server (Knowledge Base / Inference Engine)
  • The Generalized Upper Model 2.0
  • ICD: International Code of Diseases
  • SENSUS
  • GermaNet
  • Protégé (Ontology Editor)
  • Suggested Upper Merged Ontology (SUMO)
  • EuroWordNet
  • MIKROKOSMOS (not freely available any more)
  • SNOMED: Systematized Nomenclature of Medicine
  • UMLS MetaThesaurus
  • OntoEdit (Ontology Editor)
  • WordNet - a Lexical Database for English
  • UMLS Semantic Network
  • CycSecure
  • MindNet
relevant source(s):