Ontology Research Group

Time Event Ontology

The Time Event Ontology (TEO) has been developed in order to provide a formal conceptualization of temporal structures in both structured data and textual narratives. The design of TEO was based primarily on its predecessor: Clinical Narrative Temporal Relation Ontology (CNTRO) [1,2], which models temporal information in natural text with and leverages semantic web technologies for temporal reasoning. TEO aims to expand CNTRO’s meta-level semantics classification and reasoning capabilities. TEO provides core semantic components for representing temporal events and relations to enable reasoning capacities in temporal relations. While CNTRO was primarily focused on annotating clinical narratives, TEO was designed with the goal of annotating a very general category of temporal relationships. The general architecture of TEO can be seen in Figure 1. The download link can be found here.

Figure 1 Overview of Time Event Ontology

Acknowledgment:

This project is partially supported by the National Library Of Medicine of the National Institutes of Health under Award Number R01LM011829.

Reference:

  1. Tao C, Wei WQ, Savova G, Chute CG. A semantic web ontology for temporal relation inferencing in clinical narratives. InProceedings of the American Medical Informatics Association (AMIA) 2010 Annual Symposium. Washington DC 2010 Nov.
  2. Tao C, Solbrig HR, Chute CG. CNTRO 2.0: a harmonized semantic web ontology for temporal relation inferencing in clinical narratives. AMIA Summits Transl Sci Proc. 2011;2011:64-8.