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

- Packages that use AbstractTrainer
  Package | Description
  --- | ---
  opennlp.tools.ml |
  opennlp.tools.ml.maxent | Provides main functionality of the maxent package including data structures and algorithms for parameter estimation.
  opennlp.tools.ml.maxent.quasinewton |
  opennlp.tools.ml.naivebayes |
  opennlp.tools.ml.perceptron |

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

    Subclasses of AbstractTrainer in opennlp.tools.ml
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `AbstractEventModelSequenceTrainer` |
    `class` | `AbstractEventTrainer` |
    `class` | `AbstractSequenceTrainer` |

  - ### 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.

  - ### 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` | 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: Text Classification from Labeled and Unlabeled Documents using EM Nigam, McCallum, et al paper of 2000

  - ### 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 for sequences using the perceptron algorithm.