# Normalization Token Filter（标准化词元过滤器）

原文链接 :[https://www.elastic.co/guide/en/elasticsearch/reference/5.4/analysis-normalization-tokenfilter.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.4/analysis-normalization-tokenfilter.html)

译文链接 :[http://www.apache.wiki/pages/viewpage.action?pageId=10028050](http://www.apache.wiki/pages/viewpage.action?pageId=10028050)

贡献者 : [李亚运](/display/~liyayun)，[ApacheCN](/display/~apachecn)，[Apache中文网](/display/~apachechina)

## 简述

有几个词元过滤器可用于尝试规范某种语言的特殊字符。

| 阿拉伯 | [`arabic_normalization`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/ar/ArabicNormalizer.html) |
| 德语 | [`german_normalization`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/de/GermanNormalizationFilter.html) |
| 印地语 | [`hindi_normalization`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/hi/HindiNormalizer.html) |
| 印度 | [`indic_normalization`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/in/IndicNormalizer.html) |
| 库尔德语（Sorani） | [`sorani_normalization`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/ckb/SoraniNormalizer.html) |
| 波斯语 | [`persian_normalization`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/fa/PersianNormalizer.html) |
| 斯堪的纳维亚文 | [`scandinavian_normalization`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/miscellaneous/ScandinavianNormalizationFilter.html), [`scandinavian_folding`](http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/miscellaneous/ScandinavianFoldingFilter.html) |
| 塞尔维亚 | not-released-yet[`serbian_normalization`], |