The frame of personal active information system based on XML

With the rapid development and spread of the Internet technology, there have been significant progresses in the Internet information retrieval and active services. However, the traditional Internet search engines and active services are all based on simple similarity of key word or bag of words, and documents features and users' personal interests aren't well depicted due to the lack of semantics. XML is a newly emerged standard for the www data exchange and description. XML-based information retrieval system has the rapid development because it not only describes the contents of the documents, but also takes the documents' structural information. In this paper, a newer personal active information service system is discussed, under which the heterogeneous, distributed data spreading on the WEB will be integrated to XML data, and users' personal information is described through XML queries. We have proposed the general architecture of this system, and several key technologies for the establishment of such a system are also presented.