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。

youdao

Use this technique to perform simple transformations of an XML stream, such as filtering out or substituting certain tokens, or even augmenting the stream with new ones.

可通过这种技术对xml流执行简单的转换，比如筛掉或者替换特定的标记，甚至增加新的标记。

youdao