The paper presents the research survey and the problems of the personalized information agent technology, and points out the research orientations in the future.
综述了个性化信息代理技术的研究概况及存在问题，并指出了今后的研究方向。
Personalized information service in the Internet can be divided into several categories, such as personalized postal, intelligence agent, push technology, vertical postal.
网上的个性化信息服务有多种类型，如分类定制、 智能代理、垂直门户、推送技术等。
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