A Dynamic XML-NS View Based Approach for the Extensible Integration of Web Data Sources  

作　　者：WUWei LUZheng-ding LIRui-xuan WANGZhi-gang 

机构地区：[1]SchoolofComputerScienceandTechnology.HuazhongUniversityofScienceandTechnology,Wuhan430071,Hubei.China

出　　处：《Wuhan University Journal of Natural Sciences》2004年第5期647-651,共5页武汉大学学报（自然科学英文版）

基　　金：theNationalKeyTechnologiesR&DProgramofChina(2002BA103A04)

摘　　要：We propose a three-step technique to achieve this purpose. First, we utilize a collection of XML namespaces organized into hierarchical structure as a medium for expressing data semantics. Second, we define the format of resource descriptor for the information source discovery scheme so that we can dynamically register and/or deregister the Web data sources on the fly. Third, we employ an inverted-index mechanism to identify the subset of information sources that are relevant to a particular user query. We describe the design, architecture, and implementation of our approach—IWDS, and illustrate its use through case examples. Key words integration - heterogeneity - Web data source - XML namespace CLC number TP 311.13 Foundation item: Supported by the National Key Technologies R&D Program of China(2002BA103A04)Biography: WU Wei (1975-), male, Ph.D candidate, research direction: information integration, distribute computingWe propose a three-step technique to achieve this purpose. First, we utilize a collection of XML namespaces organized into hierarchical structure as a medium for expressing data semantics. Second, we define the format of resource descriptor for the information source discovery scheme so that we can dynamically register and/or deregister the Web data sources on the fly. Third, we employ an inverted-index mechanism to identify the subset of information sources that are relevant to a particular user query. We describe the design, architecture, and implementation of our approach—IWDS, and illustrate its use through case examples. Key words integration - heterogeneity - Web data source - XML namespace CLC number TP 311.13 Foundation item: Supported by the National Key Technologies R&D Program of China(2002BA103A04)Biography: WU Wei (1975-), male, Ph.D candidate, research direction: information integration, distribute computing

关 键 词：INTEGRATION HETEROGENEITY Web data source XML namespace 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]