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Journal of Information Science
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A Semantic Information Gathering Approach for Heterogeneous Information Sources on WWW

Ngamnij Arch-Int

Advanced Virtual and Intelligent Computing (AVIC) Research Centre, Chulalongkorn University, Bangkok, Thailand, ngamnij{at}kku.ac.th

Peraphon Sophatsathit

Advanced Virtual and Intelligent Computing (AVIC) Research Centre, Chulalongkorn University, Bangkok, Thailand

The increasing demand for accessing heterogeneous information sources to support global applications and decision-making requirements forces organizations to solve heterogeneity problems. One of the important problems stemming from accessing the heterogeneous data is semantic heterogeneity. A number of research efforts have been proposed to address this problem, ranging from mediator-based systems, description logic-based systems to content-descriptive metadata systems. In this paper, we propose a metadata dictionary as an assistant mechanism for solving semantic heterogeneity. The proposed metadata dictionary is designed based on domain ontology where the constituent components are defined in terms of object-oriented and set theory. An XML-based data model is employed to manipulate and express the metadata dictionary contents. The inherent flexibility of XML technology permits systemwide interoperability suitable for a web-based environment.

Key Words: World Wide Web • domain names • ontologies • semantic relations • metadata • XML

Journal of Information Science, Vol. 29, No. 5, 357-374 (2003)
DOI: 10.1177/01655515030295003
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