## Uses of Class
opennlp.tools.ml.AbstractTrainer

- Packages that use AbstractTrainer
  Package | Description
  --- | ---
  opennlp.tools.ml | Package related to Machine Learning (ML) features of OpenNLP, the related ML models, and trainers.
  opennlp.tools.ml.maxent | Package related to ML by means of the Maximum Entropy (ME) algorithm.
  opennlp.tools.ml.maxent.quasinewton | Package related to ML by means of the Quasi Newton (QN) algorithm.
  opennlp.tools.ml.naivebayes | Package related to ML by means of the Naive Bayes algorithm.
  opennlp.tools.ml.perceptron | Package related to ML by means of the perceptron algorithm.

- - ### Uses of AbstractTrainer in opennlp.tools.ml

    Subclasses of AbstractTrainer in opennlp.tools.ml
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `AbstractEventModelSequenceTrainer` | A basic `EventModelSequenceTrainer` implementation that processes `events`.
    `class` | `AbstractEventTrainer` | A basic `EventTrainer` implementation.

  - ### Uses of AbstractTrainer in opennlp.tools.ml.maxent

    Subclasses of AbstractTrainer in opennlp.tools.ml.maxent
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `GISTrainer` | An implementation of Generalized Iterative Scaling (GIS).

  - ### Uses of AbstractTrainer in opennlp.tools.ml.maxent.quasinewton

    Subclasses of AbstractTrainer in opennlp.tools.ml.maxent.quasinewton
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `QNTrainer` | A Maxent model `Trainer` using L-BFGS algorithm.

  - ### Uses of AbstractTrainer in opennlp.tools.ml.naivebayes

    Subclasses of AbstractTrainer in opennlp.tools.ml.naivebayes
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `NaiveBayesTrainer` | Trains `models` using the combination of EM algorithm and Naive Bayes classifier which is described in:

  - ### Uses of AbstractTrainer in opennlp.tools.ml.perceptron

    Subclasses of AbstractTrainer in opennlp.tools.ml.perceptron
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `PerceptronTrainer` | Trains `models` using the perceptron algorithm.
    `class` | `SimplePerceptronSequenceTrainer` | Trains `models` with sequences using the perceptron algorithm.