A dynamic XML-NS view based approach for the extensible integration of Web data sources
Wei Wu, LU Zheng-ding, LI Rui-xuan, Wang Zhi-gang · Wuhan University Journal of Natural Sciences · 2004
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.