2845 search results - page 4 / 569 » Constraints over Ontologies |
SSDBM
2002
IEEE
14 years 1 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
WWW
2008
ACM
14 years 9 months ago
2008
ACM
Fuzzy ontologies are envisioned to be useful in the Semantic Web. Existing fuzzy ontology reasoners are not scalable enough to handle the scale of data that the Web provides. In t...
KES
2004
Springer
14 years 2 months ago
2004
Springer
Abstract. Ontology-based modelling is becoming increasingly important in the design of complex knowledge management applications. However, many problems related to large-scale onto...
DIWEB
2004
13 years 10 months ago
2004
In this paper, we propose a methodology developed in the framework of the VISPO project for engineering a three-layer ontology, based on the conceptualization, integration, synthes...
ESWS
2006
Springer
14 years 13 days ago
2006
Springer
The requirements of specific applications and services are often over estimated when ontologies are designed and built. This sometimes results in many ontologies being too large fo...