Keyword Retrieval Technology Research of XML Document

At present many commercial database using Xpath and XQuery as XML retrieval standard, grammar about XPath and XQuery is complicated , it is difficult for general user to use. In this paper, the research work is focused on the keyword retrieval technology of XML document, designs a XML full-text information retrieval similar to HTML full-text information retrieval,proposes inverted-file retrieval method based on the Deweycoding, designs a SLCA retrieval algorithm about multi-keyword.