Class KStemFilter

A high-performance kstem filter for english.

See "Viewing Morphology as an Inference Process" (Krovetz, R., Proceedings of the Sixteenth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 191-203, 1993).

All terms must already be lowercased for this filter to work correctly.

Note: This filter is aware of the Lucene.Net.Analysis.TokenAttributes.IKeywordAttribute. To prevent certain terms from being passed to the stemmer Lucene.Net.Analysis.TokenAttributes.IKeywordAttribute.IsKeyword should be set to

true

in a previous Lucene.Net.Analysis.TokenStream.

Note: For including the original term as well as the stemmed version, see KeywordRepeatFilterFactory

Inheritance

object

AttributeSource

TokenStream

TokenFilter

KStemFilter

Implements

IDisposable

Inherited Members

TokenFilter.End()

TokenFilter.Reset()

TokenStream.Dispose()

AttributeSource.GetAttributeFactory()

AttributeSource.GetAttributeClassesEnumerator()

AttributeSource.GetAttributeImplsEnumerator()

AttributeSource.AddAttributeImpl(Attribute)

AttributeSource.AddAttribute<T>()

AttributeSource.HasAttributes

AttributeSource.HasAttribute<T>()

AttributeSource.GetAttribute<T>()

AttributeSource.ClearAttributes()

AttributeSource.CaptureState()

AttributeSource.RestoreState(AttributeSource.State)

AttributeSource.GetHashCode()

AttributeSource.Equals(object)

AttributeSource.ReflectAsString(bool)

AttributeSource.ReflectWith(IAttributeReflector)

AttributeSource.CloneAttributes()

AttributeSource.CopyTo(AttributeSource)

AttributeSource.ToString()

object.Equals(object, object)

object.GetType()

object.ReferenceEquals(object, object)

Namespace: Lucene.Net.Analysis.En

Assembly: Lucene.Net.Analysis.Common.dll

Syntax

public sealed class KStemFilter : TokenFilter, IDisposable

Constructors

KStemFilter(TokenStream)

A high-performance kstem filter for english.

See "Viewing Morphology as an Inference Process" (Krovetz, R., Proceedings of the Sixteenth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 191-203, 1993).

All terms must already be lowercased for this filter to work correctly.

Note: This filter is aware of the Lucene.Net.Analysis.TokenAttributes.IKeywordAttribute. To prevent certain terms from being passed to the stemmer Lucene.Net.Analysis.TokenAttributes.IKeywordAttribute.IsKeyword should be set to

true

in a previous Lucene.Net.Analysis.TokenStream.

Note: For including the original term as well as the stemmed version, see KeywordRepeatFilterFactory

Declaration

public KStemFilter(TokenStream @in)

Parameters

Type	Name	Description
TokenStream	in

Methods

IncrementToken()

Returns the next, stemmed, input Token.

Declaration

public override bool IncrementToken()

Returns

Type	Description
bool	The stemmed form of a token.

Overrides

Lucene.Net.Analysis.TokenStream.IncrementToken()

Exceptions

Type	Condition
IOException	If there is a low-level I/O error.

Implements

IDisposable