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

Packages that use Evaluator
Package
Description
opennlp.tools.chunker
Package related to finding non-recursive syntactic annotation such as noun phrase chunks.
opennlp.tools.doccat
Package for classifying a document into a category.
opennlp.tools.langdetect
Package related to predicting languages from samples of text.
opennlp.tools.lemmatizer
Package related to the lemmatizer functionality.
opennlp.tools.namefind
Package related to finding proper names and numeric amounts.
opennlp.tools.parser
Package containing common code for performing full syntactic parsing.
opennlp.tools.postag
Package related to part-of-speech tagging.
opennlp.tools.sentdetect
Package related to identifying sentence boundaries.
opennlp.tools.tokenize
Contains classes related to finding token or words in a string.

- ## 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.parser

  Subclasses of Evaluator in opennlp.tools.parser
  Modifier and Type
  Class
  Description
  `class`
  `ParserEvaluator`
  This implementation of `Evaluator<Parse>` behaves like `EVALB` with no exceptions, e.g, without removing punctuation tags, or equality between `ADVP` and `PRT`, as in COLLINS convention.

- ## 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.tokenize

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