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# Uppercase Token Filter(Uppercase词元过滤器) 原文链接 : [https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-uppercase-tokenfilter.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-uppercase-tokenfilter.html) 译文链接 : [http://www.apache.wiki/pages/viewpage.action?pageId=10027091](http://www.apache.wiki/pages/viewpage.action?pageId=10027091) 贡献者 : [fucker](/display/~caizhongjie),[ApacheCN](/display/~apachecn),[Apache中文网](/display/~apachechina) **uppercase ** 类型的词元过滤器,将词元文本规范化为大写。