Knowledge Yielding Ontologies
for Transition-based Organization
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KYOTO Ontology

KYOTO should be able to accommodate changes in scientific theories as both he world and our knowledge of the world change. We, therefore, require an ontology that is not idiosyncratic but rather one that can accommodate

  1. a variety of languages and their wordnets,
  2. a variety of scientific domains other than ecology,
  3. a variety of research communities,
  4. future research in these domains, and can
  5. serve as the basis of sound, formal reasoning.
This means that the major role of the ontology in the KYOTO project is to rovide a coherent, unified, stable frame of reference for different cultural and inguistic communities as well as different research communities. In order to do this, the ontology will deal with very general and abstract concepts in a clear, consistent manner that follows rigorous and explicit criteria.

Structure of the KYOTO Ontology

The KYOTO ontology version 2 has three layers:

  1. KYOTO 2 Top,
  2. KYOTO 2 Middle and
  3. KYOTO 2 Domain.

The Kyoto 2 Top ontology is an extended version of DOLCE-Lite Plus (DLP). DLP models qualities according to the kind of entities they inhere in, i.e., abstract, endurant, or perdurant. We have added new concepts to DLP in order to model qualities according to whether their values (expressed in DLP by the relations, q-location) occupy what we call definite_quality_region, indefinite_quality_region, and a binary quality region called yes_or_no. This distinction is intended to run orthogonally to the distinctions already present in DLP rather than replace the distinction in DLP.

The KYOTO 2 Middle ontology contains concepts that connect domain terms. It contains:

  • base concepts
  • units of measurement, and other qualities
  • perdurant terms (often identified with a synset from WordNet 3.0; it is not exhaustive of terms that would appear in a domain neutral ontology)
  • a few endurant terms.
The KYOTO 2 Domain ontology contains concepts relevant for estuaries; these concepts are taken from user scenarios as well as from documents provided by domain experts. Unlike the top and middle layers of the ontology, this layer of the ontology has not been imported into the KYOTO ontology. This allows users to edit the domain part of the ontology without allowing them to edit the top and middle layers.

A detailed description of the KYOTO ontology version 2 and its construction is provided in deliverable D6.5: Central ontology –revised.

Download the KYOTO Ontology

The three layers of the KYOTO ontology version 3 (final) are freely available for download:

The three layers of the KYOTO ontology version 2 are also available for download:


ICT-211423 - 2008 © Kyoto Consortium