How to organize ontologies and clearly
define the semantics in ontologies are very important. Presently, the ontologies are
built by different organizations for their own purposes, therefore we need to effectively
organize different ontologies together with hierarchies, then the concepts of
the ontologies can be efficiently used to annotate Web pages and e-business agents,
and semantic information can be efficiently processed based on the well-organized
ontologies.
To define ontologies, ontology languages are required. Ontolingua (Gruber, 1992)
is an ontology interchange language which was proposed to support the design of
ontologies. Loom (MacGregor, 1991), a knowledge representation system, is used
to provide deductive support. We will further introduce the XML-based ontology
languages in the ???Background??? section.
In this chapter, we propose hierarchies to effectively organize ontology languages
and ontologies and discuss how to efficiently process semantic information in
Semantic Web and e-business. The rest of this chapter is organized as follows. In
L and L ng
Copyright ?© 2007, Idea Group Inc.
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