# Uses of Class
opennlp.tools.ml.model.AbstractDataIndexer

Packages that use AbstractDataIndexer
Package
Description
opennlp.tools.ml.model
Package related to ML models and feature selection techniques.

- ## Uses of AbstractDataIndexer in opennlp.tools.ml.model

  Subclasses of AbstractDataIndexer in opennlp.tools.ml.model
  Modifier and Type
  Class
  Description
  `class`
  `OnePassDataIndexer`
  A `DataIndexer` for maxent model data which handles cutoffs for uncommon contextual predicates and provides a unique integer index for each of the predicates.
  `class`
  `OnePassRealValueDataIndexer`
  A `DataIndexer` for maxent model data which handles cutoffs for uncommon contextual predicates and provides a unique integer index for each of the predicates and maintains event values.
  `class`
  `TwoPassDataIndexer`
  Collecting event and context counts by making two passes over the events.