All Classes

Class	Description
AbstractBottomUpParser	Abstract class which contains code to tag and chunk parses for bottom up parsing and leaves implementation of advancing parses and completing parses to extend class.
AbstractContextGenerator	Abstract class containing many of the methods used to generate contexts for parsing.
AbstractDataIndexer	Abstract DataIndexer implementation for collecting event and context counts used in training.
AbstractEventModelSequenceTrainer	A basic EventModelSequenceTrainer implementation that processes events.
AbstractEventStream<T>	A base ObjectStream implementation for events.
AbstractEventTrainer	A basic EventTrainer implementation.
AbstractModel	A basic MaxentModel implementation.
AbstractModel.ModelType
AbstractModelReader	An abstract, basic implementation of a model reader.
AbstractModelWriter	An abstract, basic implementation of a model writer.
AbstractObjectStream<T>	A base ObjectStream implementation.
AbstractParserEventStream	Abstract class extended by parser event streams which perform tagging and chunking.
AbstractSampleStreamFactory<T,P>	Base class for sample stream factories.
AbstractToSentenceSampleStream<T>
AbstractTrainer
AdaptiveFeatureGenerator	An interface for generating features for name entity identification and for updating document level contexts.
ADChunkSampleStream	Parser for Floresta Sita(c)tica Arvores Deitadas corpus, output to for the Portuguese Chunker training.
ADChunkSampleStreamFactory<P>	A Factory to create a Arvores Deitadas ChunkStream from the command line utility.
AdditionalContextFeatureGenerator	The AdditionalContextFeatureGenerator generates the context from the passed in additional context.
ADNameSampleStream	Parser for Floresta Sita(c)tica Arvores Deitadas corpus, output to for the Portuguese NER training.
ADNameSampleStreamFactory<P>	A Factory to create a Arvores Deitadas NameSampleDataStream from the command line utility.
ADPOSSampleStream	Note: Do not use this class, internal use only!
ADPOSSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ADSentenceSampleStream	Note: Do not use this class, internal use only!
ADSentenceSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ADSentenceStream	Stream filter which merges text lines into sentences, following the Arvores Deitadas syntax.
ADSentenceStream.Sentence
ADSentenceStream.SentenceParser	Parses a sample of AD corpus.
ADSentenceStream.SentenceParser.Leaf	Represents the AD leaf
ADSentenceStream.SentenceParser.Node	Represents the AD node
ADSentenceStream.SentenceParser.TreeElement	Represents a tree element, Node or Leaf
ADTokenSampleStreamFactory<P>	Note: Do not use this class, internal use only!
AggregateCharSequenceNormalizer	A CharSequenceNormalizer implementation that aggregates the functionality of other normalizers.
AggregatedFeatureGenerator	The AggregatedFeatureGenerator aggregates a set of AdaptiveFeatureGenerators and calls them to generate the features.
AggregatedFeatureGeneratorFactory
AncoraSpanishHeadRules	Class for storing the Ancora Spanish head rules associated with parsing.
AncoraSpanishHeadRules.HeadRulesSerializer
AnnotationConfiguration
AnnotatorNoteAnnotation
arabicStemmer	This class was automatically generated by a Snowball to Java compiler It implements the stemming algorithm defined by a snowball script.
ArrayMath	Utility class for simple vector arithmetic.
ArrayMath	Deprecated.
ArtifactProvider	Provides access to model persisted artifacts.
ArtifactSerializer<T>	Responsible to create an artifact from an InputStream.
ArtifactToSerializerMapper	Deprecated.
AttachContextGenerator	Generates predictive contexts for deciding how constituents should be attached.
AttributeAnnotation
Attributes	The Attributes class stores name value pairs.
BagOfWordsFeatureGenerator	Generates a feature for each word in a document.
BaseLink	Represents a minimal tuple of information.
BaseModel	This is a common base model which can be used by the components' specific model classes.
BaseToolFactory	Base class for all tool factories.
BasicContextGenerator	A ContextGenerator implementation for maxent decisions, assuming that the input given to the BasicContextGenerator.getContext(String) method is a String containing contextual predicates separated by spaces, for instance:
BasicFormatParams	Common format parameters.
BasicTrainingParams	Common training parameters.
BeamSearch<T>	Performs k-best search over a sequence.
BeamSearchContextGenerator<T>	Interface for context generators used with a sequence beam search.
BigramNameFeatureGenerator
BigramNameFeatureGeneratorFactory
BilouCodec	The default SequenceCodec implementation according to the BILOU scheme.
BilouNameFinderSequenceValidator	A SequenceValidator implementation for the BilouCodec.
BinaryFileDataReader	A DataReader that reads files from a binary format.
BinaryGISModelReader	A GISModelReader that reads models from a binary format.
BinaryGISModelWriter	A GISModelWriter that writes models in a binary format.
BinaryNaiveBayesModelReader	A NaiveBayesModelReader that reads models from a binary format.
BinaryNaiveBayesModelWriter	A NaiveBayesModelWriter that writes models in a binary format.
BinaryPerceptronModelReader	A PerceptronModelReader that reads models from a binary format.
BinaryPerceptronModelWriter	A PerceptronModelWriter that writes models in a binary format.
BinaryQNModelReader	A QNModelReader that reads models from a binary format.
BinaryQNModelWriter	A QNModelWriter that writes models in a binary format.
BioCodec	The default SequenceCodec implementation according to the BIO scheme: B: 'beginning' of a NE I: 'inside', the word is inside a NE O: 'outside', the word is a regular word outside a NE See also the paper by Roth D.
BioNLP2004NameSampleStream	A sample stream for the training files of the BioNLP/NLPBA 2004 shared task.
BioNLP2004NameSampleStreamFactory<P>
BratAnnotation
BratAnnotationStream	Reads the annotations from the brat .ann annotation file.
BratDocument	Brat (brat rapid annotation tool) is based on the stav visualiser which was originally made in order to visualise BioNLP'11 Shared Task data.
BratDocumentParser
BratDocumentStream
BratNameSampleStream	Generates Name Sample objects for a Brat Document object.
BratNameSampleStreamFactory
BrownBigramFeatureGenerator	Generates Brown cluster features for token bigrams.
BrownCluster	Class to load a Brown cluster document: word\tword_class\tprob
BrownCluster.BrownClusterSerializer
BrownClusterBigramFeatureGeneratorFactory	Generates Brown clustering features for token bigrams.
BrownClusterTokenClassFeatureGeneratorFactory	Generates Brown clustering features for token classes.
BrownClusterTokenFeatureGeneratorFactory	Generates Brown clustering features for current token.
BrownTokenClasses	Obtain the paths listed in the pathLengths array from the Brown class.
BrownTokenClassFeatureGenerator	Generates BrownCluster features for current token and token class.
BrownTokenFeatureGenerator	Generates BrownCluster features for current token.
BuildContextGenerator	Generates predictive contexts for deciding how constituents should be combined.
BuildContextGenerator	Creates the features or contexts for the building phase of parsing.
BuildModelUpdaterTool
ByteArraySerializer	An ArtifactSerializer implementation for binary data, kept in byte[].
Cache<K,V>	Provides fixed size, pre-allocated, least recently used replacement cache.
CachedFeatureGenerator	Caches features of the aggregated generators.
CachedFeatureGeneratorFactory
catalanStemmer	This class was automatically generated by a Snowball to Java compiler It implements the stemming algorithm defined by a snowball script.
CensusDictionaryCreatorTool	This tool helps create a loadable dictionary for the NameFinder, from data collected from US Census data.
CharacterNgramFeatureGenerator	The CharacterNgramFeatureGenerator uses character ngrams to generate features about each token.
CharacterNgramFeatureGeneratorFactory
CharSequenceNormalizer	A char sequence normalizer, used to adjusting (prune, substitute, add, etc.) characters in order to remove noise from text
CheckContextGenerator	Generates predictive context for deciding when a constituent is complete.
CheckContextGenerator	Generates predictive context for deciding when a constituent is complete.
CheckModelUpdaterTool	Trains a new check model.
ChunkContextGenerator	Creates predictive context for the pre-chunking phases of parsing.
Chunker	The interface for chunkers which provide chunk tags for a sequence of tokens.
ChunkerContextGenerator	Interface for a BeamSearchContextGenerator used in syntactic chunking.
ChunkerConverterTool	Tool to convert multiple data formats into native OpenNLP chunker training format.
ChunkerCrossValidator	Cross validator for Chunker.
ChunkerCrossValidatorTool
ChunkerDetailedFMeasureListener
ChunkerEvaluationMonitor	A marker interface for evaluating chunkers.
ChunkerEvaluator	The ChunkerEvaluator measures the performance of the given Chunker with the provided reference samples.
ChunkerEvaluatorTool	A default ChunkSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
ChunkerEventStream	Class for creating an event stream out of data files for training a Chunker.
ChunkerFactory
ChunkerME	The class represents a maximum-entropy-based Chunker.
ChunkerMETool
ChunkerModel	The ChunkerModel is the model used by a learnable Chunker.
ChunkerModelLoader	Loads a ChunkerModel for the command line tools.
ChunkerModelSerializer	An ArtifactSerializer implementation for models.
ChunkerSampleStreamFactory<P>	Factory producing OpenNLP ChunkSampleStreams.
ChunkerTrainerTool
ChunkEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
ChunkSample	Class for holding chunks for a single unit of text.
ChunkSampleSequenceStream	A SequenceStream implementation encapsulating samples.
ChunkSampleStream	Parses the conll 2000 shared task shallow parser training data.
ChunkSampleStream
CollectionObjectStream<E>	An ObjectStream implementation that works on a Collection of CollectionObjectStream as source for elements.
ComparableEvent	A maxent event representation which we can use to sort based on the predicates indexes contained in the events.
ComparablePredicate	A maxent predicate representation which we can use to sort based on the outcomes.
ConfigurablePOSContextGenerator	A configurable context generator for a POSTagger.
Conll02NameSampleStream	Parser for the Dutch and Spanish ner training files of the CONLL 2002 shared task.
Conll02NameSampleStream.LANGUAGE
Conll02NameSampleStreamFactory<P>	Note: Do not use this class, internal use only!
Conll03NameSampleStream	An import stream which can parse the CONLL03 data.
Conll03NameSampleStream.LANGUAGE
Conll03NameSampleStreamFactory<P>
ConlluLemmaSampleStream
ConlluLemmaSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ConlluPOSSampleStream
ConlluPOSSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ConlluSentence
ConlluSentenceSampleStream
ConlluSentenceSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ConlluStream	The CoNNL-U Format is specified here.
ConlluTagset
ConlluTokenSampleStream
ConlluTokenSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ConlluWordLine
ConllXPOSSampleStream	Parses the data from the CONLL 06 shared task into POS Samples.
ConllXPOSSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ConllXSentenceSampleStreamFactory<P>	Note: Do not use this class, internal use only!
ConllXTokenSampleStreamFactory<P>	Note: Do not use this class, internal use only!
Cons	Holds feature information about a specific Parse node.
ConstitParseSampleStream
ConstitParseSampleStreamFactory	Note: Do not use this class, internal use only!
Constituent	Holds constituents when reading parses.
Context	Class which associates a real valued parameter or expected value with a particular contextual predicate or feature.
ContextGenerator<T>	Represents a generator of contexts for maxent decisions.
CrossValidationPartitioner<E>	Provides access to training and test partitions for n-fold cross validation.
CrossValidationPartitioner.TrainingSampleStream<E>	The CrossValidationPartitioner.TrainingSampleStream which iterates over all training elements.
CustomFeatureGenerator	Deprecated.
CVParams	Common cross validator parameters.
DataIndexer	Represents an indexer which compresses events in memory and performs feature selection.
DataIndexerFactory	A factory that produces DataIndexer instances.
DataReader	Describes generic ways to read data from a DataInputStream.
DataStream	An interface for objects which can deliver a stream of training data to be supplied to an EventStream.
DefaultChunkerContextGenerator	Features based on chunking model described in Fei Sha and Fernando Pereira.
DefaultChunkerSequenceValidator	The default chunker SequenceValidator implementation.
DefaultEndOfSentenceScanner	Default implementation of the EndOfSentenceScanner.
DefaultLanguageDetectorContextGenerator	A context generator for language detector.
DefaultLemmatizerContextGenerator	Simple feature generator for learning statistical lemmatizers.
DefaultLemmatizerSequenceValidator	The default lemmatizer SequenceValidator implementation.
DefaultNameContextGenerator	A NameContextGenerator implementation for determining contextual features for a tag-chunk style named-entity recognizer.
DefaultPOSContextGenerator	A default context generator for a POSTagger.
DefaultPOSSequenceValidator	The default POS tagger SequenceValidator implementation.
DefaultSDContextGenerator	Generate event contexts for maxent decisions for sentence detection.
DefaultTokenContextGenerator	A default TokenContextGenerator which produces events for maxent decisions for tokenization.
DefinitionFeatureGeneratorFactory
DetailedFMeasureEvaluatorParams	EvaluatorParams for Chunker.
DetokenEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
DetokenizationDictionary
DetokenizationDictionary.Operation
Detokenizer	A Detokenizer merges tokens back to their detokenized representation.
Detokenizer.DetokenizationOperation	This enum contains an operation for every token to merge the tokens together to their detokenized form.
DetokenizerEvaluator	The DetokenizerEvaluator measures the performance of the given Detokenizer with the provided reference samples.
DetokenizerParameter
DetokenizerSampleStreamFactory<T,P>	Base class for factories which need a Detokenizer.
DetokenizeSentenceSampleStream
Dictionary	An iterable and serializable dictionary implementation.
DictionaryBuilderTool
DictionaryDetokenizer	A rule based detokenizer.
DictionaryDetokenizerTool
DictionaryEntryPersistor	A persistor used by for reading and writing dictionaries of all kinds.
DictionaryFeatureGenerator	The DictionaryFeatureGenerator uses the DictionaryNameFinder to generated features for detected names based on the InSpanGenerator.
DictionaryFeatureGeneratorFactory
DictionaryLemmatizer	A Lemmatizer implementation that works by simple dictionary lookup into a Map built from a file containing, for each line:
DictionaryNameFinder	This is a Dictionary based name finder.
DictionarySerializer	An ArtifactSerializer implementation for dictionaries.
DirectorySampleStream	The directory sample stream allows for creating an ObjectStream from a directory listing of files.
DoccatConverterTool	Tool to convert multiple data formats into native OpenNLP doccat training format.
DoccatCrossValidator	Cross validator for DocumentCategorizer.
DoccatCrossValidatorTool
DoccatEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
DoccatEvaluationMonitor	A marker interface for evaluating doccat.
DoccatEvaluatorTool	A default DocumentSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
DoccatFactory	The factory that provides Doccat default implementations and resources.
DoccatFineGrainedReportListener	Generates a detailed report for the POS Tagger.
DoccatModel	A model for document categorization
DoccatModelLoader	Loads a DoccatModel for the command line tools.
DoccatTool
DoccatTrainerTool
DocumentBeginFeatureGenerator
DocumentBeginFeatureGeneratorFactory
DocumentCategorizer	Interface for classes which categorize documents.
DocumentCategorizerEvaluator	The DocumentCategorizerEvaluator measures the performance of the given DocumentCategorizer with the provided reference samples.
DocumentCategorizerEventStream	Iterator-like class for modeling document classification events.
DocumentCategorizerME	A Max-Ent based implementation of DocumentCategorizer.
DocumentNameFinder	Interface for processing an entire document allowing a TokenNameFinder to use context from the entire document.
DocumentSample	Class which holds a classified document and its category.
DocumentSampleStream	Reads in string encoded training samples, parses them and outputs DocumentSample objects.
DocumentSampleStreamFactory<P>	Factory producing OpenNLP DocumentSampleStreams.
DocumentToLineStream	Reads a plain text file and return each line as a String object.
DownloadUtil	This class facilitates the downloading of pretrained OpenNLP models.
DownloadUtil.ModelType	The type of model.
DynamicEvalParameters
EmojiCharSequenceNormalizer	A EmojiCharSequenceNormalizer implementation that normalizes text in terms of emojis.
EmptyLinePreprocessorStream	ObjectStream to clean up empty lines for empty line separated document streams. - Skips empty line at training data start - Transforms multiple empty lines in a row into one - Replaces white space lines with empty lines - TODO: Terminates last document with empty line if it is missing This stream should be used by the components that mark empty lines to mark document boundaries.
EncodingParameter	Encoding parameter.
EndOfSentenceScanner	Scans CharSequence, StringBuffer, and char[] for the offsets of sentence ending characters.
EntityLinker<T extends Span>	EntityLinkers establish connections with external data to enrich extracted entities.
EntityLinkerFactory	Generates a EntityLinker instances via a properties file configuration.
EntityLinkerProperties	Properties wrapper for EntityLinker implementations.
EntityLinkerTool
Entry	An Entry is a StringList which can optionally be mapped to attributes.
EntryInserter
EvalitaNameSampleStream	Parser for the Italian NER training files of the Evalita 2007 and 2009 NER shared tasks.
EvalitaNameSampleStream.LANGUAGE
EvalitaNameSampleStreamFactory<P>	Note: Do not use this class, internal use only!
EvalParameters	This class encapsulates the variables used in producing probabilities from a model and facilitates passing these variables to the eval method.
EvaluationMonitor<T>
Evaluator<T>	An abstract base class for evaluators.
EvaluatorParams	Common evaluation parameters.
Event	The context of a decision point during training.
EventAnnotation
EventModelSequenceTrainer<T>	A specialized Trainer that is based on a 'EventModelSequence' approach.
EventTraceStream
EventTrainer	A specialized Trainer that is based on an Event approach.
Experimental	Indicates that a certain API feature is not stable and might change with a new release.
ExtensionLoader	The ExtensionLoader is responsible to load extensions to the OpenNLP library.
ExtensionNotLoadedException	Exception indicates that an OpenNLP extension could not be loaded.
ExtensionServiceKeys
Factory
Factory
FeatureGenerator	Interface for generating features for document categorization.
FeatureGeneratorResourceProvider	The FeatureGeneratorResourceProvider provides access to the resources available in the model.
FeatureGeneratorUtil	This class provide common utilities for feature generation.
FileEventStream	Class for using a file of events as an event stream.
FileToByteArraySampleStream	Note: Do not use this class, internal use only!
FileToStringSampleStream	Provides the ability to read the contents of files contained in an object stream of files.
FilterObjectStream<S,T>	Abstract base class for filtering streams.
FineGrainedEvaluatorParams	Common evaluation parameters.
FMeasure	The FMeasure is a utility class for evaluators which measures precision, recall and the resulting f-measure.
Function	Interface for a function.
GapLabeler	Represents a labeler for nodes which contain traces so that these traces can be predicted by a Parser.
GeneratorFactory	Creates a set of feature generators based on a provided XML descriptor.
GeneratorFactory.AbstractXmlFeatureGeneratorFactory
GenericModelReader	An generic AbstractModelReader implementation.
GenericModelSerializer	An ArtifactSerializer implementation for models.
GenericModelWriter	An generic AbstractModelWriter implementation.
GISModel	A maximum entropy model which has been trained using the Generalized Iterative Scaling (GIS) procedure.
GISModelReader	The base class for readers of GIS models.
GISModelWriter	The base class for writers of GIS models.
GISTrainer	An implementation of Generalized Iterative Scaling (GIS).
Glove	GloVe is an unsupervised learning algorithm for obtaining vector representations for words.
greekStemmer	This class was automatically generated by a Snowball to Java compiler It implements the stemming algorithm defined by a snowball script.
HashSumEventStream	A hash sum based AbstractObjectStream implementation.
HeadRules	Encoder for head rules associated with parsing.
HeadRules	Class for storing the English HeadRules associated with parsing.
HeadRules.HeadRulesSerializer
Index	This classes indexes string lists.
indonesianStemmer	This class implements the stemming algorithm defined by a snowball script.
InputStreamFactory	Allows repeated reads through a stream for certain model building types.
InSpanGenerator	Generates features if the tokens are recognized by the provided TokenNameFinder.
InsufficientTrainingDataException	This exception indicates that the provided training data is insufficient to train a desired model.
Internal	Classes, fields, or methods annotated &#64;Internal are for OpenNLP internal use only.
InvalidFormatException	This exception indicates that a resource violates the expected data format.
IrishSentenceBankDocument	A structure to hold an Irish Sentence Bank document, which is a collection of tokenized sentences.
IrishSentenceBankDocument.IrishSentenceBankFlex
IrishSentenceBankDocument.IrishSentenceBankSentence
IrishSentenceBankSentenceStreamFactory<P>
IrishSentenceBankTokenSampleStreamFactory<P>
irishStemmer	This class was automatically generated by a Snowball to Java compiler It implements the stemming algorithm defined by a snowball script.
Language	Class for holding the document language and its confidence
LanguageDetector	The interface for LanguageDetector which predicts the Language for a context.
LanguageDetectorConfig
LanguageDetectorContextGenerator	A context generator interface for LanguageDetector.
LanguageDetectorConverterTool	Tool to convert multiple data formats into native OpenNLP language detection training format.
LanguageDetectorCrossValidator	Cross validator for LanguageDetector.
LanguageDetectorCrossValidatorTool
LanguageDetectorEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
LanguageDetectorEvaluationMonitor	A marker interface for evaluating language detectors.
LanguageDetectorEvaluator	The LanguageDetectorEvaluator measures the performance of the given LanguageDetector with the provided reference LanguageSamples.
LanguageDetectorEvaluatorTool	A default LanguageSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
LanguageDetectorEventStream	Iterator-like class for modeling an event stream of samples.
LanguageDetectorFactory	Default factory used by LanguageDetector.
LanguageDetectorFineGrainedReportListener	Generates a detailed report for the POS Tagger.
LanguageDetectorME	Implements a learnable LanguageDetector.
LanguageDetectorModel	The LanguageDetectorModel is the model used by a learnable LanguageDetector.
LanguageDetectorModelLoader	Loads a LanguageDetectorModel for the command line tools.
LanguageDetectorSampleStream	This class reads in string encoded training samples, parses them and outputs LanguageSample objects.
LanguageDetectorSampleStreamFactory<P>	Factory producing OpenNLP DocumentSampleStreams.
LanguageDetectorTool
LanguageDetectorTrainerTool
LanguageModel	A language model can calculate the probability p (between 0 and 1) of a certain sequence of tokens, given its underlying vocabulary.
LanguageParams
LanguageSample	Holds a classified document and its Language.
LanguageSampleStreamFactory<T,P>	Stream factory for those streams which carry language.
LeipzigLanguageSampleStream
LeipzigLanguageSampleStreamFactory<P>	Note: Do not use this class, internal use only!
LemmaEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
LemmaSample	Represents a lemmatized sentence.
LemmaSampleEventStream	Class for creating an event stream out of data files for training a probabilistic Lemmatizer.
LemmaSampleSequenceStream	A SequenceStream implementation encapsulating samples.
LemmaSampleStream	Reads data for training and testing the Lemmatizer.
Lemmatizer	The common interface for lemmatizers.
LemmatizerContextGenerator	Interface for the context generator used for probabilistic Lemmatizer.
LemmatizerEvaluationMonitor	A marker interface for evaluating lemmatizers.
LemmatizerEvaluator	The LemmatizerEvaluator measures the performance of the given Lemmatizer with the provided reference samples.
LemmatizerEvaluatorTool	A default LemmaSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
LemmatizerFactory	The factory that provides Lemmatizer default implementation and resources.
LemmatizerFineGrainedReportListener	Generates a detailed report for the Lemmatizer.
LemmatizerME	A probabilistic Lemmatizer implementation.
LemmatizerMETool
LemmatizerModel	The LemmatizerModel is the model used by a learnable Lemmatizer.
LemmatizerModelLoader	Loads a LemmatizerModel for the command line tools.
LemmatizerSampleStreamFactory<P>	Factory producing OpenNLP LemmaSampleStreams.
LemmatizerTrainerTool
LetsmtDocument	A structure to hold the letsmt document.
LetsmtDocument.LetsmtDocumentHandler	A content handler to receive and process SAX events.
LetsmtDocument.LetsmtSentence
LetsmtSentenceStreamFactory<P>
LineSearch	Class that performs line search to find minimum.
LineSearch.LineSearchResult	Represents a LineSearch result.
LinkedSpan<T extends BaseLink>	A default, extended Span that holds additional information about a Span.
LogProbabilities<T>	Class implementing the probability distribution over labels returned by a classifier as a log of probabilities.
LogProbability<T>	A class implementing the logarithmic Probability for a label.
MarkableFileInputStreamFactory	A factory that creates MarkableFileInputStream from a File
MascDocument
MascDocumentStream
MascNamedEntityParser	A class to process the MASC Named entity stand-off annotation file
MascNamedEntitySampleStream
MascNamedEntitySampleStreamFactory<P>
MascPennTagParser	A class for parsing MASC's Penn tagging/tokenization stand-off annotation
MascPOSSampleStream
MascPOSSampleStreamFactory<P>
MascSentence
MascSentenceSampleStream
MascSentenceSampleStreamFactory<P>
MascToken	A specialized Span to express tokens in documents.
MascTokenSampleStream
MascTokenSampleStreamFactory<P>
MascWord
MaxentModel	Interface for maximum entropy models.
Mean	Calculates the arithmetic mean of values added with the Mean.add(double) method.
ModelParameterChunker	A helper class that handles Strings with more than 64k (65535 bytes) in length.
ModelType	Enumeration of supported model types.
ModelUtil	Utility class for handling of models.
MosesSentenceSampleStream
MosesSentenceSampleStreamFactory<P>	Factory producing OpenNLP MosesSentenceSampleStream objects.
Muc6NameSampleStreamFactory
MucNameContentHandler
MucNameSampleStream
MutableContext	An extension of Context used to store parameters or expected values associated with this context which can be updated or assigned.
MutableInt	This is a non-thread safe mutable int.
MutableTagDictionary	Interface that allows TagDictionary entries to be added and removed.
NaiveBayesEvalParameters	Specialized parameters for the evaluation of a naive bayes classifier
NaiveBayesModel	A MaxentModel implementation of the multinomial Naive Bayes classifier model.
NaiveBayesModelReader	The base class for readers of models.
NaiveBayesModelWriter	The base class for NaiveBayesModel writers.
NaiveBayesTrainer	Trains models using the combination of EM algorithm and Naive Bayes classifier which is described in:
NameContextGenerator	Interface for generating the context for a name finder by specifying a set of feature generators.
NameEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
NameFinderCensus90NameStream	This class helps to read the US Census data from the files to build a StringList for each dictionary entry in the name-finder dictionary.
NameFinderEventStream	Class for creating an event stream out of data files for training an TokenNameFinder.
NameFinderME	A maximum-entropy-based name finder implementation.
NameFinderSequenceValidator	The default name finder SequenceValidator implementation.
NameSample	Encapsulates names for a single unit of text.
NameSampleCountersStream	Counts tokens, sentences and names by type.
NameSampleDataStream	The NameSampleDataStream class converts tagged strings provided by a DataStream to NameSample objects.
NameSampleDataStreamFactory<P>	Factory producing OpenNLP NameSampleDataStreams.
NameSampleDataStreamFactory.Parameters
NameSampleSequenceStream	A SequenceStream implementation encapsulating samples.
NameSampleTypeFilter	A stream which removes name samples which do not have a certain type.
NameToSentenceSampleStream	Note: Do not use this class, internal use only!
NameToSentenceSampleStreamFactory<P>	Note: Do not use this class, internal use only!
NameToTokenSampleStream	Note: Do not use this class, internal use only!
NameToTokenSampleStreamFactory<P>	Note: Do not use this class, internal use only!
NegLogLikelihood	Evaluate negative log-likelihood and its gradient from DataIndexer.
NewlineSentenceDetector	The Newline SentenceDetector assumes that sentences are line delimited and recognizes one sentence per non-empty line.
NGramCharModel	The NGramCharModel can be used to create character ngrams.
NGramFeatureGenerator	Generates ngram features for a document.
NGramGenerator	Generates an nGram, with optional separator, and returns the grams as a list of strings
NGramLanguageModel	A LanguageModel based on a NGramModel using Stupid Backoff to get the probabilities of the ngrams.
NGramLanguageModelTool	Command line tool for NGramLanguageModel.
NGramModel	The NGramModel can be used to crate ngrams and character ngrams.
NGramUtils	Utility class for ngrams.
NKJPSegmentationDocument
NKJPSegmentationDocument.Pointer
NKJPSentenceSampleStream
NKJPSentenceSampleStreamFactory<P>
NKJPTextDocument	The National corpus of Polish (NKJP) format.
NumberCharSequenceNormalizer	A NumberCharSequenceNormalizer implementation that normalizes text in terms of numbers.
ObjectDataReader	A DataReader implementation based on ObjectInputStream.
ObjectStream<T>	Reads objects from a stream.
ObjectStreamUtils
OnePassDataIndexer	A DataIndexer for maxent model data which handles cutoffs for uncommon contextual predicates and provides a unique integer index for each of the predicates.
OnePassRealValueDataIndexer	A DataIndexer for maxent model data which handles cutoffs for uncommon contextual predicates and provides a unique integer index for each of the predicates and maintains event values.
OntoNotesFormatParameters
OntoNotesNameSampleStream	Name Sample Stream parser for the OntoNotes 4.0 corpus.
OntoNotesNameSampleStreamFactory
OntoNotesParseSampleStream
OntoNotesParseSampleStreamFactory
OntoNotesPOSSampleStreamFactory
OutcomePriorFeatureGenerator	The definition feature maps the underlying distribution of outcomes.
ParagraphStream	A FilterObjectStream which merges text lines into paragraphs.
ParallelNegLogLikelihood	Evaluate negative log-likelihood and its gradient in parallel
Parse	Data structure for holding parse constituents.
Parser	A shift reduce style Parser implementation based on Adwait Ratnaparkhi's 1998 thesis.
Parser	Defines common methods for full-syntactic parsers.
Parser	A built-attach Parser implementation.
ParserChunkerFactory
ParserChunkerSequenceValidator	The parser chunker SequenceValidator implementation.
ParserConverterTool	Tool to convert multiple data formats into native OpenNLP parser format.
ParserCrossValidator	Cross validator for a Parser.
ParserEvaluationMonitor	A marker interface for evaluating parsers.
ParserEvaluator	This implementation of Evaluator behaves like EVALB with no exceptions, e.g, without removing punctuation tags, or equality between ADVP and PRT, as in COLLINS convention.
ParserEvaluatorTool	A default Parse-centric implementation of AbstractEvaluatorTool that prints to an output stream.
ParserEventStream	Wrapper class for one of four shift-reduce parser event streams.
ParserEventStream	Wrapper class for one of four built-attach parser event streams.
ParserEventTypeEnum	Enumeration of event types for a Parser.
ParserFactory
ParserModel	This is the default ParserModel implementation.
ParserModelLoader	Loads a ParserModel for the command line tools.
ParserTool
ParserTrainerTool
ParserType	Enumeration of supported Parser types.
ParseSampleStream
ParseSampleStreamFactory<P>	Factory producing OpenNLP ParseSampleStreams.
ParseSampleStreamFactory.Parameters
ParseToPOSSampleStream	Note: Do not use this class, internal use only!
ParseToPOSSampleStreamFactory	Note: Do not use this class, internal use only!
ParseToSentenceSampleStreamFactory	Note: Do not use this class, internal use only!
ParseToTokenSampleStreamFactory	Note: Do not use this class, internal use only!
PerceptronModel	A model implementation based one the perceptron algorithm.
PerceptronModelReader	The base class for readers of models.
PerceptronModelWriter	The base class for PerceptronModel writers.
PerceptronTrainer	Trains models using the perceptron algorithm.
PlainTextByLineStream	Reads a plain text file and returns each line as a String object.
PlainTextFileDataReader	A generic DataReader implementation for plain text files.
PlainTextNaiveBayesModelReader	A NaiveBayesModelReader that reads models from a plain text format.
PlainTextNaiveBayesModelWriter	A NaiveBayesModelWriter that writes models in a plain text format.
PorterStemmer	Stemmer, implementing the Porter Stemming Algorithm The Stemmer class transforms a word into its root form.
PortugueseContractionUtility	Utility class to handle Portuguese contractions.
POSContextGenerator	Interface for a BeamSearchContextGenerator used in POS tagging.
POSDictionary	Provides a means of determining which tags are valid for a particular word based on a TagDictionary read from a file.
POSEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
POSEvaluator	The POSEvaluator measures the performance of the given POSTagger with the provided reference samples.
POSModel	The POSModel is the model used by a learnable POSTagger.
POSModelLoader	Loads a POSModel for the command line tools.
POSModelSerializer	An ArtifactSerializer implementation for models.
POSSample	Represents an pos-tagged sentence.
POSSampleEventStream	Reads the samples from an Iterator and converts those samples into events which can be used by the maxent library for training.
POSSampleSequenceStream	A SequenceStream implementation encapsulating samples.
PosSampleStream
POSTagger	The interface for part of speech taggers.
POSTaggerConverterTool	Tool to convert multiple data formats into native OpenNLP part of speech tagging training format.
POSTaggerCrossValidator
POSTaggerCrossValidatorTool
POSTaggerEvaluationMonitor	A marker interface for evaluating pos taggers.
POSTaggerEvaluatorTool	A default POSSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
POSTaggerFactory	The factory that provides POSTagger default implementations and resources.
POSTaggerFactory.POSDictionarySerializer
PosTaggerFeatureGenerator
PosTaggerFeatureGeneratorFactory
POSTaggerFineGrainedReportListener	Generates a detailed report for the POS Tagger.
POSTaggerME	A part-of-speech tagger that uses maximum entropy.
POSTaggerNameFeatureGenerator	Adds the token POS Tag as feature.
POSTaggerNameFeatureGeneratorFactory
POSTaggerTool
POSTaggerTrainerTool
POSToSentenceSampleStream	Note: Do not use this class, internal use only!
POSToSentenceSampleStreamFactory<P>	Note: Do not use this class, internal use only!
POSToTokenSampleStream	Note: Do not use this class, internal use only!
POSToTokenSampleStreamFactory<P>	Note: Do not use this class, internal use only!
PrefixFeatureGenerator
PrefixFeatureGeneratorFactory
PreviousMapFeatureGenerator	This AdaptiveFeatureGenerator generates features indicating the outcome associated with a previously occurring word.
PreviousMapFeatureGeneratorFactory
PreviousTwoMapFeatureGenerator	This AdaptiveFeatureGenerator generates features indicating the outcome associated with two previously occurring words.
Prior	This interface allows one to implement a prior distribution for use in maximum entropy model training.
Probabilities<T>	Class implementing the probability distribution over labels returned by a classifier.
Probability<T>	Class implementing the probability for a label.
ProbingLanguageDetectionResult	A data container encapsulating language detection results.
QNMinimizer	Implementation of L-BFGS which supports L1-, L2-regularization and Elastic Net for solving convex optimization problems.
QNMinimizer.Evaluator	Evaluate quality of training parameters.
QNMinimizer.L2RegFunction	L2-regularized objective Function.
QNModel	A maximum entropy model which has been trained using the Quasi Newton (QN) algorithm.
QNModelReader	The base class for readers of QN models.
QNModelWriter	The base class for writers of models.
QNTrainer	A Maxent model Trainer using L-BFGS algorithm.
RealBasicEventStream	Class for real-valued events as an event stream.
RealValueFileEventStream	Class for using a file of real-valued events as an event stream.
RegexNameFinder	A TokenNameFinder implementation based on a series of regular expressions.
RegexNameFinderFactory	Returns a RegexNameFinder based on a selection of defaults or a configuration and a selection of defaults.
RegexNameFinderFactory.DEFAULT_REGEX_NAME_FINDER	Enumeration of typical regex expressions available in OpenNLP.
RegexNameFinderFactory.RegexAble
RelationAnnotation
ResetableIterator<E>	This interface makes an Iterator resettable.
ReverseListIterator<T>	An iterator for a list which returns values in the opposite order as the typical list iterator.
Sample	Represents a generic type of processable elements.
SDContextGenerator	Interface for SentenceDetectorME context generators.
SDCrossValidator	A cross validator for sentence detectors.
SDEventStream
SegmenterObjectStream<S,T>
SentenceContextGenerator	Creates contexts/features for end-of-sentence detection in Thai text.
SentenceDetector	The interface for sentence detectors, which find the sentence boundaries in a text.
SentenceDetectorConverterTool	Tool to convert multiple data formats into native OpenNLP sentence detector training format.
SentenceDetectorCrossValidatorTool
SentenceDetectorEvaluationMonitor
SentenceDetectorEvaluator	The SentenceDetectorEvaluator measures the performance of the given SentenceDetector with the provided reference SentenceSamples.
SentenceDetectorEvaluatorTool	A default SentenceSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
SentenceDetectorFactory	The factory that provides SentenceDetector default implementations and resources
SentenceDetectorME	A sentence detector for splitting up raw text into sentences.
SentenceDetectorTool	A sentence detector which uses a maxent model to predict the sentences.
SentenceDetectorTrainerTool
SentenceEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
SentenceFeatureGenerator	This feature generator creates sentence begin and end features.
SentenceFeatureGeneratorFactory
SentenceModel	The SentenceModel is the model used by a learnable SentenceDetector.
SentenceSample	A SentenceSample contains a document with begin indexes of the individual sentences.
SentenceSampleStream	This class is a stream filter which reads a sentence by line samples from an ObjectStream and converts them into SentenceSample objects.
SentenceSampleStreamFactory<P>	Factory producing OpenNLP SentenceSampleStreams.
Sequence<T>	Class which models a sequence.
Sequence	Represents a weighted sequence of outcomes.
SequenceClassificationModel<T>	A classification model that can label an input Sequence.
SequenceCodec<T>	A codec for sequences of type SequenceCodec.
SequenceStream<S>	Interface for streams of sequences used to train sequence models.
SequenceStreamEventStream	Class which turns a SequenceStream into an event stream.
SequenceTrainer
SequenceValidator<T>
SerializableArtifact	A marker interface so that implementing classes can refer to the corresponding ArtifactSerializer implementation.
SgmlParser	SAX style SGML parser.
SgmlParser.ContentHandler
ShrinkCharSequenceNormalizer	A ShrinkCharSequenceNormalizer implementation that shrinks repeated spaces / chars in text.
SimplePerceptronSequenceTrainer	Trains models with sequences using the perceptron algorithm.
SimpleTokenizer	A basic Tokenizer implementation which performs tokenization using character classes.
SimpleTokenizerTool
SnowballStemmer
SnowballStemmer.ALGORITHM
Span	Class for storing start and end integer offsets.
SpanAnnotation
Stemmer	The stemmer is reducing a word to its stem.
StringList	A StringList is an immutable list of Strings.
StringPattern	Recognizes predefined patterns in strings.
StringUtil
SuffixFeatureGenerator
SuffixFeatureGeneratorFactory
TagDictionary	Interface to determine which tags are valid for a particular word based on a tag dictionary.
TaggerModelReplacerTool
ThreadSafe	Classes, fields, or methods annotated &#64;ThreadSafe are safe to use in multithreading contexts.
TokenClassFeatureGenerator	Generates features for different for the class of the token.
TokenClassFeatureGeneratorFactory
TokenContextGenerator	Interface for context generators required for TokenizerME.
TokenEvaluationErrorListener	A default implementation of EvaluationMonitor that prints to an output stream.
TokenFeatureGenerator	Generates a feature which contains the token itself.
TokenFeatureGeneratorFactory
Tokenizer	The interface for tokenizers, which segment a string into its tokens.
TokenizerConverterTool	Tool to convert multiple data formats into native OpenNLP sentence detector training format.
TokenizerCrossValidator	A cross validator for tokenizers.
TokenizerCrossValidatorTool
TokenizerEvaluationMonitor	A marker interface for evaluating tokenizers.
TokenizerEvaluator	The TokenizerEvaluator measures the performance of the given Tokenizer with the provided reference samples.
TokenizerFactory	The factory that provides Tokenizer default implementation and resources.
TokenizerME	A Tokenizer for converting raw text into separated tokens.
TokenizerMEEvaluatorTool	A default TokenSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
TokenizerMETool
TokenizerModel	The TokenizerModel is the model used by a learnable Tokenizer.
TokenizerModelLoader	Loads a TokenizerModel for the command line tools.
TokenizerStream	The TokenizerStream uses a Tokenizer to tokenize the input string and output samples.
TokenizerTrainerTool
TokenNameFinder	The interface for name finders which provide name tags for a sequence of tokens.
TokenNameFinderConverterTool	Tool to convert multiple data formats into native OpenNLP name finder training format.
TokenNameFinderCrossValidator	Cross validator for TokenNameFinder.
TokenNameFinderCrossValidatorTool
TokenNameFinderDetailedFMeasureListener
TokenNameFinderEvaluationMonitor	A marker interface for evaluating name finders.
TokenNameFinderEvaluator	The TokenNameFinderEvaluator measures the performance of the given TokenNameFinder with the provided reference samples.
TokenNameFinderEvaluatorTool	A default NameSample-centric implementation of AbstractEvaluatorTool that prints to an output stream.
TokenNameFinderFactory	The factory that provides TokenNameFinder default implementations and resources.
TokenNameFinderFineGrainedReportListener	Generates a detailed report for the NameFinder.
TokenNameFinderModel	The TokenNameFinderModel is the model used by a learnable TokenNameFinder.
TokenNameFinderModel.FeatureGeneratorCreationError
TokenNameFinderModelLoader	Loads a TokenNameFinderModel for the command line tools.
TokenNameFinderTool
TokenNameFinderTrainerTool
TokenPatternFeatureGenerator	Partitions tokens into sub-tokens based on character classes and generates class features for each of the sub-tokens and combinations of those sub-tokens.
TokenPatternFeatureGeneratorFactory
TokenSample	A TokenSample is text with token spans.
TokenSampleStream	Class which produces an Iterator<TokenSample> from a file of space delimited token.
TokenSampleStream	This class is a stream filter which reads in string encoded samples and creates samples out of them.
TokenSampleStreamFactory<P>	Factory producing OpenNLP TokenSampleStreams.
TokenTag
TokSpanEventStream	This class reads the samples via an Iterator and converts the samples into events which can be used by the maxent library for training.
Trainer	Represents a common base for training implementations.
TrainerFactory	A factory to initialize Trainer instances depending on a trainer type configured via TrainingParameters.
TrainerFactory.TrainerType
TrainingParameters	Declares and handles default parameters used for or during training models.
TrainingToolParams	Common training parameters.
TrigramNameFeatureGenerator	Adds trigram features based on tokens and token classes.
TrigramNameFeatureGeneratorFactory
TwentyNewsgroupSampleStream
TwentyNewsgroupSampleStreamFactory<P>
TwitterCharSequenceNormalizer	A TwitterCharSequenceNormalizer implementation that normalizes text in terms of Twitter character patterns.
TwoPassDataIndexer	Collecting event and context counts by making two passes over the events.
UncloseableInputStream	An InputStream which cannot be closed.
UniformPrior	Provide a maximum entropy model with a uniform Prior.
UrlCharSequenceNormalizer	A UrlCharSequenceNormalizer implementation that normalizes text in terms of URls and email addresses.
Version	The Version class represents the OpenNLP Tools library version.
WhitespaceTokenizer	A basic Tokenizer implementation which performs tokenization using white spaces.
WhitespaceTokenStream	This stream formats ObjectStream of samples into whitespace separated token strings.
WindowFeatureGenerator	Generates previous and next features for a given AdaptiveFeatureGenerator.
WindowFeatureGeneratorFactory
WordClusterDictionary
WordClusterDictionary.WordClusterDictionarySerializer
WordClusterFeatureGenerator
WordClusterFeatureGeneratorFactory	Defines a word cluster generator factory; it reads an element containing 'w2vwordcluster' as a tag name; these clusters are typically produced by word2vec or clark pos induction systems.
WordpieceTokenizer	A Tokenizer implementation which performs tokenization using word pieces.
WordTagSampleStream	A stream filter which reads a sentence per line which contains words and tags in word_tag format and outputs a POSSample objects.
WordTagSampleStreamFactory<P>	Note: Do not use this class, internal use only!
WordTagSampleStreamFactory.Parameters
WordVector	A word vector.
WordVectorTable	A table that maps tokens to word vectors.
WordVectorType
XmlUtil