In order to realize the intelligent management of data mining (DM) domain knowledge, this paper presents an architec-ture for DM knowledge management based on ontology. Using ontology database, this architecture can realize intelligent knowl-edge retrieval and automatic accomplishment of DM tasks by means of ontology services. Its key features include: ① Describ-ing DM ontology and meta-data using ontology based on Web ontology language (OWL). ② Ontology reasoning function. Based on the existing concepts and relations, the hidden knowledge in ontology can be obtained using the reasoning engine. This paper mainly focuses on the construction of DM ontology and the rea-soning of DM ontology based on OWL DL(s).
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