# Uses of Class
opennlp.tools.util.eval.Evaluator

Packages that use Evaluator
Package
Description
opennlp.tools.chunker
opennlp.tools.doccat
opennlp.tools.langdetect
opennlp.tools.lemmatizer
opennlp.tools.namefind
opennlp.tools.postag
opennlp.tools.sentdetect
opennlp.tools.sentiment
opennlp.tools.tokenize

- ## Uses of Evaluator in opennlp.tools.chunker

  Subclasses of Evaluator in opennlp.tools.chunker
  Modifier and Type
  Class
  Description
  `class`
  `ChunkerEvaluator`
  The `ChunkerEvaluator` measures the performance of the given `Chunker` with the provided reference `samples`.

- ## Uses of Evaluator in opennlp.tools.doccat

  Subclasses of Evaluator in opennlp.tools.doccat
  Modifier and Type
  Class
  Description
  `class`
  `DocumentCategorizerEvaluator`
  The `DocumentCategorizerEvaluator` measures the performance of the given `DocumentCategorizer` with the provided reference `samples`.

- ## Uses of Evaluator in opennlp.tools.langdetect

  Subclasses of Evaluator in opennlp.tools.langdetect
  Modifier and Type
  Class
  Description
  `class`
  `LanguageDetectorEvaluator`
  The `LanguageDetectorEvaluator` measures the performance of the given `LanguageDetector` with the provided reference `LanguageSample`s.

- ## Uses of Evaluator in opennlp.tools.lemmatizer

  Subclasses of Evaluator in opennlp.tools.lemmatizer
  Modifier and Type
  Class
  Description
  `class`
  `LemmatizerEvaluator`
  The `LemmatizerEvaluator` measures the performance of the given `Lemmatizer` with the provided reference `samples`.

- ## Uses of Evaluator in opennlp.tools.namefind

  Subclasses of Evaluator in opennlp.tools.namefind
  Modifier and Type
  Class
  Description
  `class`
  `TokenNameFinderEvaluator`
  The `TokenNameFinderEvaluator` measures the performance of the given `TokenNameFinder` with the provided reference `samples`.

- ## Uses of Evaluator in opennlp.tools.postag

  Subclasses of Evaluator in opennlp.tools.postag
  Modifier and Type
  Class
  Description
  `class`
  `POSEvaluator`
  The `POSEvaluator` measures the performance of the given `POSTagger` with the provided reference `samples`.

- ## Uses of Evaluator in opennlp.tools.sentdetect

  Subclasses of Evaluator in opennlp.tools.sentdetect
  Modifier and Type
  Class
  Description
  `class`
  `SentenceDetectorEvaluator`
  The `SentenceDetectorEvaluator` measures the performance of the given `SentenceDetector` with the provided reference `SentenceSample`s.

- ## Uses of Evaluator in opennlp.tools.sentiment

  Subclasses of Evaluator in opennlp.tools.sentiment
  Modifier and Type
  Class
  Description
  `class`
  `SentimentEvaluator`
  The `SentimentEvaluator` measures the performance of the given `SentimentME` with the provided reference `SentimentSample`s.

- ## Uses of Evaluator in opennlp.tools.tokenize

  Subclasses of Evaluator in opennlp.tools.tokenize
  Modifier and Type
  Class
  Description
  `class`
  `TokenizerEvaluator`
  The `TokenizerEvaluator` measures the performance of the given `Tokenizer` with the provided reference `samples`.