# Package org.apache.lucene.analysis.cjk

Analyzer for Chinese, Japanese, and Korean, which indexes bigrams (overlapping groups of two adjacent Han characters).

See: Description

- Class Summary
  Class | Description
  --- | ---
  CJKAnalyzer | An `Analyzer` that tokenizes text with `CJKTokenizer` and filters with `StopFilter`
  CJKTokenizer | CJKTokenizer is designed for Chinese, Japanese, and Korean languages.

## Package org.apache.lucene.analysis.cjk Description

Analyzer for Chinese, Japanese, and Korean, which indexes bigrams (overlapping groups of two adjacent Han characters).

Three analyzers are provided for Chinese, each of which treats Chinese text in a different way.

- ChineseAnalyzer (in the analyzers/cn package): Index unigrams (individual Chinese characters) as a token.
- CJKAnalyzer (in this package): Index bigrams (overlapping groups of two adjacent Chinese characters) as tokens.
- SmartChineseAnalyzer (in the analyzers/smartcn package): Index words (attempt to segment Chinese text into words) as tokens.

Example phrase： "我是中国人"

1. ChineseAnalyzer: 我－是－中－国－人
2. CJKAnalyzer: 我是－是中－中国－国人
3. SmartChineseAnalyzer: 我－是－中国－人

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