Abstract: A Semantic Web based intelligent retrieval model for Digital Library was presented. The model takes Digital Library domain ontologies as its basis, it has a two-layer ontology structure, and it uses ontology techniques, such as ontology mapping, ontology reasoning, etc. The model can provide semantic level resource sharing and intelligent information retrieval. It has a high precision and scalability. The model can be considered to be an approach for building knowledge and intelligent digital libraries.

Key words: Digital Library, Semantic Web, intelligent retrieval, ontology, ontology mapping, ontology reasoning