This paper points out several problems of current researches on XML stream filtering, and USES keyword search method as a solution.
针对当前XML流过滤研究中存在的问题，使用关键字查询方法作为解决方案。
Concerning the keyword search in XML document, the meaningless query results are studied from two aspects: equivalence of content in element labels and similarity in element structure.
针对XML文档关键字搜索问题，从元素标签内容等价和元素结构相似性等价两个方面考虑无效的查询结果。
Concerning the keyword search in XML document, the meaningless query results are studied from two aspects: equivalence of content in element labels and similarity in element structure.
针对XML文档关键字搜索问题，从元素标签内容等价和元素结构相似性等价两个方面考虑无效的查询结果。
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