Ontology-based metadata dictionary for integrating Heterogeneous Information Sources on the WWW

被引:0
作者
Arch-int, N [1 ]
Sophatsathit, P
Li, YF
机构
[1] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok, Thailand
[2] Queensland Univ Technol, Sch Software Engn & Data Commun, Brisbane, Qld, Australia
来源
JOURNAL OF RESEARCH AND PRACTICE IN INFORMATION TECHNOLOGY | 2003年 / 35卷 / 04期
关键词
Heterogeneous Information Sources; domain ontology; XML-based metadata dictionary; query processing;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Semantic heterogeneity has always been one of the most important problems to overcome. A number of systems have been proposed to address this problem, ranging from mediator-based systems to description logic-based systems to content-descriptive metadata systems. In this paper, we propose an ontology-based metadata dictionary as a basis for solving semantic heterogeneity. First, the ontology-based metadata dictionary is modeled on the basis of a bottom-up design approach. Next, an XML-based data model is employed to manipulate and express the metadata dictionary contents to demonstrate how the proposed ontology-based metadata dictionary can be applied to a practical implementation. We also present the transformation of the ontology-based metadata dictionary into an XML-based metadata dictionary representation. Finally, the proposed approach is applied to a practical case study along with some related query processing to demonstrate the viability of model realisation.
引用
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页码:285 / 302
页数:18
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