java.lang.Object
org.elasticsearch.search.suggest.phrase.SmoothingModel
org.elasticsearch.search.suggest.phrase.Laplace
All Implemented Interfaces:
NamedWriteable, Writeable, org.elasticsearch.common.xcontent.ToXContent, org.elasticsearch.common.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.common.xcontent.ToXContent

    org.elasticsearch.common.xcontent.ToXContent.DelegatingMapParams, org.elasticsearch.common.xcontent.ToXContent.MapParams, org.elasticsearch.common.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 double DEFAULT_LAPLACE_ALPHA
    Default alpha parameter for laplace smoothing
    static java.lang.String NAME  

    Fields inherited from interface org.elasticsearch.common.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.common.xcontent.XContentParser parser)  
    double getAlpha()  
    java.lang.String getWriteableName()
    Returns the name of the writeable object
    protected org.elasticsearch.common.xcontent.XContentBuilder innerToXContent​(org.elasticsearch.common.xcontent.XContentBuilder builder, org.elasticsearch.common.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.common.xcontent.ToXContentFragment

    isFragment
  • Field Details

    • NAME

      public static final java.lang.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 java.io.IOException
      Read from a stream.
      Throws:
      java.io.IOException
  • Method Details

    • writeTo

      public void writeTo​(StreamOutput out) throws java.io.IOException
      Description copied from interface: Writeable
      Write this into the StreamOutput.
      Throws:
      java.io.IOException
    • getAlpha

      public double getAlpha()
      Returns:
      the laplace model alpha parameter
    • innerToXContent

      protected org.elasticsearch.common.xcontent.XContentBuilder innerToXContent​(org.elasticsearch.common.xcontent.XContentBuilder builder, org.elasticsearch.common.xcontent.ToXContent.Params params) throws java.io.IOException
      Specified by:
      innerToXContent in class SmoothingModel
      Throws:
      java.io.IOException
    • getWriteableName

      public java.lang.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.common.xcontent.XContentParser parser) throws java.io.IOException
      Throws:
      java.io.IOException
    • buildWordScorerFactory

      public WordScorer.WordScorerFactory buildWordScorerFactory()
      Specified by:
      buildWordScorerFactory in class SmoothingModel