Class OpenNLPLemmatizerFilter

Runs OpenNLP dictionary-based and/or MaxEnt lemmatizers.

Both a dictionary-based lemmatizer and a MaxEnt lemmatizer are supported, via the "dictionary" and "lemmatizerModel" params, respectively. If both are configured, the dictionary-based lemmatizer is tried first, and then the MaxEnt lemmatizer is consulted for out-of-vocabulary tokens.

The dictionary file must be encoded as UTF-8, with one entry per line, in the form word[tab]lemma[tab]part-of-speech

Inheritance

System.Object

Lucene.Net.Util.AttributeSource

Lucene.Net.Analysis.TokenStream

Lucene.Net.Analysis.TokenFilter

OpenNLPLemmatizerFilter

Implements

System.IDisposable

Inherited Members

Lucene.Net.Analysis.TokenFilter.m_input

Lucene.Net.Analysis.TokenFilter.End()

TokenFilter.Dispose(Boolean)

Lucene.Net.Analysis.TokenStream.Dispose()

Lucene.Net.Util.AttributeSource.GetAttributeFactory()

Lucene.Net.Util.AttributeSource.GetAttributeClassesEnumerator()

Lucene.Net.Util.AttributeSource.GetAttributeImplsEnumerator()

Lucene.Net.Util.AttributeSource.AddAttributeImpl(Lucene.Net.Util.Attribute)

Lucene.Net.Util.AttributeSource.AddAttribute<T>()

Lucene.Net.Util.AttributeSource.HasAttributes

Lucene.Net.Util.AttributeSource.HasAttribute<T>()

Lucene.Net.Util.AttributeSource.GetAttribute<T>()

Lucene.Net.Util.AttributeSource.ClearAttributes()

Lucene.Net.Util.AttributeSource.CaptureState()

Lucene.Net.Util.AttributeSource.RestoreState(Lucene.Net.Util.AttributeSource.State)

Lucene.Net.Util.AttributeSource.GetHashCode()

AttributeSource.Equals(Object)

AttributeSource.ReflectAsString(Boolean)

Lucene.Net.Util.AttributeSource.ReflectWith(Lucene.Net.Util.IAttributeReflector)

Lucene.Net.Util.AttributeSource.CloneAttributes()

Lucene.Net.Util.AttributeSource.CopyTo(Lucene.Net.Util.AttributeSource)

Lucene.Net.Util.AttributeSource.ToString()

Namespace: Lucene.Net.Analysis.OpenNlp

Assembly: Lucene.Net.Analysis.OpenNLP.dll

Syntax

public class OpenNLPLemmatizerFilter : TokenFilter, IDisposable

Constructors

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OpenNLPLemmatizerFilter(TokenStream, NLPLemmatizerOp)

Declaration

public OpenNLPLemmatizerFilter(TokenStream input, NLPLemmatizerOp lemmatizerOp)

Parameters

Type	Name	Description
Lucene.Net.Analysis.TokenStream	input
NLPLemmatizerOp	lemmatizerOp

Methods

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IncrementToken()

Declaration

public override sealed bool IncrementToken()

Returns

Type	Description
System.Boolean

Overrides

Lucene.Net.Analysis.TokenStream.IncrementToken()

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Reset()

Declaration

public override void Reset()

Overrides

Lucene.Net.Analysis.TokenFilter.Reset()

Implements

System.IDisposable