Exploring Node Context Meaning in XML Keyword Query

摘要

As a practical and efficient technique to access XML data, keyword query approaches should address two main problems: enable users to express their query intentions accurately and provide matching algorithms to realize users' query intentions faithfully. Most of the existing researches concentrate on the second problem and the first one is always neglected. In this paper, we propose a novel XML keyword query algorithm. In the first phase of the algorithm, users can select the suitable context meanings of the keyword matching nodes to match their query intentions, and the eligible keyword matching nodes will be found in the second phase to return more accurate query results.