# Lucene 10.3.2 classification API

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