See: Description
| Package | Description | 
|---|---|
| org.apache.lucene.classification | 
 Uses already seen data (the indexed documents) to classify an input ( can be simple text or a structured document). 
 | 
| org.apache.lucene.classification.document | 
 Uses already seen data (the indexed documents) to classify new documents. 
 | 
| org.apache.lucene.classification.utils | 
 Utilities for evaluation, data preparation, etc. 
 | 
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