Package org.elasticsearch.search.aggregations.bucket.significant.heuristics

Class JLHScore

java.lang.Object

org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristic

org.elasticsearch.search.aggregations.bucket.significant.heuristics.JLHScore

All Implemented Interfaces:

NamedWriteable, Writeable, ToXContent, ToXContentFragment

public class JLHScore
extends SignificanceHeuristic

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JLHScore.JLHScoreBuilder

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

ToXContent.DelegatingMapParams, ToXContent.MapParams, 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 java.lang.String	NAME

Fields inherited from interface org.elasticsearch.common.xcontent.ToXContent

EMPTY_PARAMS

Constructor Summary

Constructors

Constructor	Description
JLHScore()
JLHScore(StreamInput in)	Read from a stream.

Method Summary

Modifier and Type	Method	Description
boolean	equals(java.lang.Object obj)
double	getScore(long subsetFreq, long subsetSize, long supersetFreq, long supersetSize)	Calculates the significance of a term in a sample against a background of normal distributions by comparing the changes in frequency.
java.lang.String	getWriteableName()	Returns the name of the writeable object
int	hashCode()
static SignificanceHeuristic	parse(XContentParser parser)
XContentBuilder	toXContent(XContentBuilder builder, ToXContent.Params params)
void	writeTo(StreamOutput out)	Write this into the StreamOutput.

Methods inherited from class org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristic

checkFrequencyValidity, rewrite, rewrite

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 Detail

NAME

public static final java.lang.String NAME

See Also:

Constant Field Values

Constructor Detail

JLHScore

public JLHScore()

JLHScore

public JLHScore(StreamInput in)

Read from a stream.

Method Detail

writeTo

public void writeTo(StreamOutput out)
             throws java.io.IOException

Description copied from interface: Writeable

Write this into the StreamOutput.

Throws:

java.io.IOException

getWriteableName

public java.lang.String getWriteableName()

Description copied from interface: NamedWriteable

Returns the name of the writeable object

getScore

public double getScore(long subsetFreq,
                       long subsetSize,
                       long supersetFreq,
                       long supersetSize)

Calculates the significance of a term in a sample against a background of normal distributions by comparing the changes in frequency. This is the heart of the significant terms feature.

Specified by:

getScore in class SignificanceHeuristic

Parameters:

subsetFreq - The frequency of the term in the selected sample

subsetSize - The size of the selected sample (typically number of docs)

supersetFreq - The frequency of the term in the superset from which the sample was taken

supersetSize - The size of the superset from which the sample was taken (typically number of docs)

Returns:

a "significance" score

toXContent

public XContentBuilder toXContent(XContentBuilder builder,
                                  ToXContent.Params params)
                           throws java.io.IOException

Throws:

java.io.IOException

parse

public static SignificanceHeuristic parse(XContentParser parser)
                                   throws java.io.IOException,
                                          QueryShardException

Throws:

java.io.IOException

QueryShardException

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object