Title :
Query decomposition based on ontology mapping in data integration system
Author :
Xu, Xuezhou ; Xiang, Hong ; Chen, Jingyu
Author_Institution :
Xidian Univ., Xi´´an
Abstract :
A method of query decomposition based on ontology mapping is proposed. By analyzing the domain models and schemas of data sources, a global ontology and local ontology are established, and the mapping between them are generated as well. During the query process, the query is expressed in the form of a tree, and by taking advantage of mapping rules, the query is decomposed into sub-queries.
Keywords :
ontologies (artificial intelligence); query processing; data integration system; data sources; ontology mapping; query decomposition; query process; Computer interfaces; Data mining; Data warehouses; Information systems; Information technology; Ontologies; Query processing; Software engineering; Vocabulary; XML;
Conference_Titel :
Natural Computation, 2007. ICNC 2007. Third International Conference on
Conference_Location :
Haikou
Print_ISBN :
978-0-7695-2875-5
DOI :
10.1109/ICNC.2007.593
