摘要
传统异构数据库集成过程存在数据映射主题不明确问题,导致数据集成资源利用率偏低,切耗时较长。为此提出基于主题映射元数据的异构数据库集成方法。将待查询领域本体与元仓库组建映射,形成主体映射元数据,通过主体映射元数据解决数据库异构问题,并对用户查询进行推理扩展,实现对不同数据库集成。实验结果表明,所提方法能够有效提升数据库集成后的资源利用率,减少数据库集成时间。
Traditionally,the heterogeneous database integration process has the problem of unclear data mapping topic,which leads to low resource utilization rate of data integration.Therefore,a method of integrating heterogeneous database based on topic mapping metadata was put forward.The domain ontology to be inquired was mapped with the meta-warehouse to form the subject mapping metadata.The problem about heterogeneous database was solved through the subject mapping metadata.Meanwhile,the user query was extended by inference,and thus to achieve the integration of different databases.Simulation results show that the proposed method can improve the resource utilization and reduce the time of database integration effectively.
作者
程显生
王俊
CHENG Xian-sheng;WANG Jun(Department of Computer Technology and Information Management,Inner Mongolia Agricultural University,Baotou Inner Mongolia 014109,China)
出处
《计算机仿真》
北大核心
2020年第3期198-201,332,共5页
Computer Simulation
关键词
主题映射元数据
异构数据库
集成
Subject-mapping metadata
Heterogeneous database
Integration
