Uses of Interface opennlp.tools.util.eval.EvaluationMonitor (Apache OpenNLP Tools 1.9.5 API)
Date: 2026-06-18

## Uses of Interface
opennlp.tools.util.eval.EvaluationMonitor

- Packages that use EvaluationMonitor
  Package | Description
  --- | ---
  opennlp.tools.chunker | Package related to finding non-recursive syntactic annotation such as noun phrase chunks.
  opennlp.tools.cmdline |
  opennlp.tools.cmdline.chunker |
  opennlp.tools.cmdline.doccat |
  opennlp.tools.cmdline.langdetect |
  opennlp.tools.cmdline.lemmatizer | Classes giving access to the opennlp.tools.lemmatizer functionalities.
  opennlp.tools.cmdline.namefind |
  opennlp.tools.cmdline.postag |
  opennlp.tools.cmdline.sentdetect |
  opennlp.tools.cmdline.tokenizer |
  opennlp.tools.doccat | Package for classifying a document into a category.
  opennlp.tools.langdetect |
  opennlp.tools.lemmatizer | Package related with the lemmatizer tool
  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 sentece boundries.
  opennlp.tools.tokenize | Contains classes related to finding token or words in a string.
  opennlp.tools.util.eval |

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.chunker
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `ChunkerEvaluationMonitor`

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline

    Classes in opennlp.tools.cmdline with annotations of type with type parameters of type that implement declared as with annotations of type with type parameters of type with annotations of type with annotations of type with type parameters of type that return that return types with arguments of type with parameters of type with type arguments of type that throw with annotations of type with annotations of type with parameters of type with type arguments of type that throw EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `opennlp.tools.cmdline.DetailedFMeasureListener<T>` This listener will gather detailed information about the sample under evaluation and will allow detailed FMeasure for each outcome.
    `class` | `opennlp.tools.cmdline.EvaluationErrorPrinter<T>` Note: Do not use this class, internal use only!

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.chunker

    Classes in opennlp.tools.cmdline.chunker that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ChunkerDetailedFMeasureListener`
    `class` | `ChunkEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.doccat

    Classes in opennlp.tools.cmdline.doccat that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DoccatEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.
    `class` | `DoccatFineGrainedReportListener` Generates a detailed report for the POS Tagger.

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.langdetect

    Classes in opennlp.tools.cmdline.langdetect that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `LanguageDetectorEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.
    `class` | `LanguageDetectorFineGrainedReportListener` Generates a detailed report for the POS Tagger.

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.lemmatizer

    Classes in opennlp.tools.cmdline.lemmatizer that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `LemmaEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.
    `class` | `LemmatizerFineGrainedReportListener` Generates a detailed report for the Lemmatizer.

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.namefind

    Classes in opennlp.tools.cmdline.namefind that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `NameEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.
    `class` | `TokenNameFinderDetailedFMeasureListener`
    `class` | `TokenNameFinderFineGrainedReportListener` Generates a detailed report for the NameFinder.

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.postag

    Classes in opennlp.tools.cmdline.postag that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `POSEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.
    `class` | `POSTaggerFineGrainedReportListener` Generates a detailed report for the POS Tagger.

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.sentdetect

    Classes in opennlp.tools.cmdline.sentdetect that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `SentenceEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.

  - ### Uses of EvaluationMonitor in opennlp.tools.cmdline.tokenizer

    Classes in opennlp.tools.cmdline.tokenizer that implement EvaluationMonitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DetokenEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.
    `class` | `TokenEvaluationErrorListener` A default implementation of `EvaluationMonitor` that prints to an output stream.

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.doccat
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `DoccatEvaluationMonitor` `EvaluationMonitor` for doccat.

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.langdetect
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `LanguageDetectorEvaluationMonitor` `EvaluationMonitor` for Language Detector.

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.lemmatizer
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `LemmatizerEvaluationMonitor` Interface for the lemmatizer evaluator.

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.namefind
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `TokenNameFinderEvaluationMonitor`

  - ### Uses of EvaluationMonitor in opennlp.tools.parser

    Subinterfaces of EvaluationMonitor in opennlp.tools.parser
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `ParserEvaluationMonitor`

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.postag
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `POSTaggerEvaluationMonitor`

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.sentdetect
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `SentenceDetectorEvaluationMonitor`

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

    Subinterfaces of EvaluationMonitor in opennlp.tools.tokenize
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `TokenizerEvaluationMonitor`

  - ### Uses of EvaluationMonitor in opennlp.tools.util.eval

    Constructors in opennlp.tools.util.eval with parameters of type EvaluationMonitor
    Constructor and Description
    `Evaluator(EvaluationMonitor<T>... aListeners)`

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