| Interface | Description | 
|---|---|
| CharSequenceNormalizer | 
 A char sequence normalizer, used to adjusting (prune, substitute, add, etc.)
 characters in order to remove noise from text 
 | 
| Class | Description | 
|---|---|
| AggregateCharSequenceNormalizer | |
| EmojiCharSequenceNormalizer | 
 Normalizer for emojis. 
 | 
| NumberCharSequenceNormalizer | 
 Normalizer for numbers 
 | 
| ShrinkCharSequenceNormalizer | 
 Normalizer to shrink repeated spaces / chars 
 | 
| TwitterCharSequenceNormalizer | 
 Normalizer for Twitter character sequences 
 | 
| UrlCharSequenceNormalizer | 
 Normalizer that removes URls and email addresses. 
 | 
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