Semantic Query for Integrated Heterogeneous Database Systems

摘要：

To enable accessing deep web information at semantic level,this paper develops a semantic query rewriting mechanism on heterogeneous database enabled web information system with complex ontology mapping technology.It discusses the procedure of converting database schema and instances to ontologies at first,and then the patterns of complex ontology mappings,and the ontology-based query planning in Mediator-Wrapper based environment with GAV style querying request.The relational algebra rewriting is discussed in detail.

作者: Ping Liang Yunsheng Liu Shuming Liang Heping Chen

作者单位: Computer School,Huazhong University of Science and Technology,Wuhan 430074,China College of Information Science and Engineering,Wuhan University of Science and Technology,Wuhan 4300

会议类型: 国际会议

会议名称: 第一届智能网络与智能系统国际会议(ICINIS 2008)(The First International Conference on Intelligent Networks and Intelligent Systems)

会议地点: 武汉

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）