Provides a classification module which leverages Lucene index information.
| 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. |