org.galagosearch.core.scoring
Class LinearSmoother

java.lang.Object
  org.galagosearch.tupleflow.StandardStep<org.galagosearch.core.types.DocumentLengthWordCount,org.galagosearch.core.types.DocumentWordProbability>
      org.galagosearch.core.scoring.LinearSmoother

All Implemented Interfaces:

DistributionSmoother, org.galagosearch.tupleflow.Processor<org.galagosearch.core.types.DocumentLengthWordCount>, org.galagosearch.tupleflow.Source<org.galagosearch.core.types.DocumentWordProbability>, org.galagosearch.tupleflow.Step

public class LinearSmoother
extends org.galagosearch.tupleflow.StandardStep<org.galagosearch.core.types.DocumentLengthWordCount,org.galagosearch.core.types.DocumentWordProbability>
implements DistributionSmoother

Author:

trevor

Field Summary

Fields inherited from class org.galagosearch.tupleflow.StandardStep

processor

Constructor Summary

LinearSmoother(double lambda, java.util.HashMap<java.lang.String,java.lang.Double> backgrounds)

LinearSmoother(org.galagosearch.tupleflow.Parameters.Value value, java.util.HashMap<java.lang.String,java.lang.Double> backgrounds)

Method Summary

java.lang.Class<org.galagosearch.core.types.DocumentLengthWordCount>	getInputClass()
java.lang.Class<org.galagosearch.core.types.DocumentWordProbability>	getOutputClass()
void	process(org.galagosearch.core.types.DocumentLengthWordCount object)
double	smooth(double background, int count, int length)
double	smooth(java.lang.String word, int count, int length)

Methods inherited from class org.galagosearch.tupleflow.StandardStep

close, setProcessor

Methods inherited from class java.lang.Object

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

Constructor Detail

LinearSmoother

public LinearSmoother(org.galagosearch.tupleflow.Parameters.Value value,
                      java.util.HashMap<java.lang.String,java.lang.Double> backgrounds)

LinearSmoother

public LinearSmoother(double lambda,
                      java.util.HashMap<java.lang.String,java.lang.Double> backgrounds)

Method Detail

process

public void process(org.galagosearch.core.types.DocumentLengthWordCount object)
             throws java.io.IOException

Specified by:

process in interface org.galagosearch.tupleflow.Processor<org.galagosearch.core.types.DocumentLengthWordCount>

Specified by:

process in class org.galagosearch.tupleflow.StandardStep<org.galagosearch.core.types.DocumentLengthWordCount,org.galagosearch.core.types.DocumentWordProbability>

Throws:

java.io.IOException

smooth

public double smooth(double background,
                     int count,
                     int length)

Specified by:

smooth in interface DistributionSmoother

smooth

public double smooth(java.lang.String word,
                     int count,
                     int length)

Specified by:

smooth in interface DistributionSmoother

getInputClass

public java.lang.Class<org.galagosearch.core.types.DocumentLengthWordCount> getInputClass()

getOutputClass

public java.lang.Class<org.galagosearch.core.types.DocumentWordProbability> getOutputClass()