Formal Description Method for Ontology Based on Simple Attribute-Grammar and Its Application
Huiying Gong · Journal of Changchun Post and Telecommunication Institute · 2005
Based on the analysis of the concept and characteritics of ontology, a formal description method for ontology was proposed based on simple attribute-grammar, in which syntax rules that describe a series of logic relationships in ontology are the basis for inference in Logic Layer, and attribute-calculating rules realize the semantic for ontology. A model for information retrieving based on semantics is designed on the basis of a structure for attribute-calculator. Metadata model for ontology based on XML (eXtensible Markup Language) is processed by attribute-calculator, and corresponding DTD (Document Type Definition) is provided to guide document creating. A concrete application example is presented to demonstrate the retrieving result based on the method with satisfying precision. The method can be extended by perfecting syntax rules,attributes and attribute-calculating rules.