Package org.elasticsearch.search.suggest.phrase

Class Laplace

java.lang.Object

org.elasticsearch.search.suggest.phrase.SmoothingModel

org.elasticsearch.search.suggest.phrase.Laplace

All Implemented Interfaces:

NamedWriteable, Writeable, org.elasticsearch.xcontent.ToXContent, org.elasticsearch.xcontent.ToXContentFragment

public final class Laplace
extends SmoothingModel

An additive smoothing model.

See N-Gram Smoothing for details.

Nested Class Summary

Nested classes/interfaces inherited from interface org.elasticsearch.xcontent.ToXContent

org.elasticsearch.xcontent.ToXContent.DelegatingMapParams, org.elasticsearch.xcontent.ToXContent.MapParams, org.elasticsearch.xcontent.ToXContent.Params

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

Fields

Modifier and Type	Field	Description
static final double	DEFAULT_LAPLACE_ALPHA	Default alpha parameter for laplace smoothing
static final String	NAME

Fields inherited from interface org.elasticsearch.xcontent.ToXContent

EMPTY_PARAMS

Constructor Summary

Constructors

Constructor	Description
Laplace(double alpha)	Creates a Laplace smoothing model.
Laplace(StreamInput in)	Read from a stream.

Method Summary

Modifier and Type	Method	Description
WordScorer.WordScorerFactory	buildWordScorerFactory()
protected boolean	doEquals(SmoothingModel other)	subtype specific implementation of "equals".
protected int	doHashCode()
static SmoothingModel	fromXContent(org.elasticsearch.xcontent.XContentParser parser)
double	getAlpha()
String	getWriteableName()	Returns the name of the writeable object
protected org.elasticsearch.xcontent.XContentBuilder	innerToXContent(org.elasticsearch.xcontent.XContentBuilder builder, org.elasticsearch.xcontent.ToXContent.Params params)
void	writeTo(StreamOutput out)	Write this into the StreamOutput.

Methods inherited from class org.elasticsearch.search.suggest.phrase.SmoothingModel

equals, hashCode, toXContent

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.elasticsearch.xcontent.ToXContentFragment

isFragment

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

DEFAULT_LAPLACE_ALPHA

public static final double DEFAULT_LAPLACE_ALPHA

Default alpha parameter for laplace smoothing

See Also:

• Constant Field Values

Constructor Details

Laplace

public Laplace(double alpha)

Creates a Laplace smoothing model.

Laplace

public Laplace(StreamInput in)
        throws IOException

Read from a stream.

Throws:

IOException

Method Details

writeTo

public void writeTo(StreamOutput out)
             throws IOException

Description copied from interface: Writeable

Write this into the StreamOutput.

Throws:

IOException

getAlpha

public double getAlpha()

Returns:

the laplace model alpha parameter

innerToXContent

protected org.elasticsearch.xcontent.XContentBuilder innerToXContent(org.elasticsearch.xcontent.XContentBuilder builder,
 org.elasticsearch.xcontent.ToXContent.Params params)
                                                              throws IOException

Specified by:

innerToXContent in class SmoothingModel

Throws:

IOException

getWriteableName

public String getWriteableName()

Description copied from interface: NamedWriteable

Returns the name of the writeable object

doEquals

protected boolean doEquals(SmoothingModel other)

Description copied from class: SmoothingModel

subtype specific implementation of "equals".

Specified by:

doEquals in class SmoothingModel

doHashCode

protected int doHashCode()

Specified by:

doHashCode in class SmoothingModel

fromXContent

public static SmoothingModel fromXContent(org.elasticsearch.xcontent.XContentParser parser)
                                   throws IOException

Throws:

IOException

buildWordScorerFactory

public WordScorer.WordScorerFactory buildWordScorerFactory()

Specified by:

buildWordScorerFactory in class SmoothingModel