org.apache.ctakes.temporal.utils

Class SMOTEplus

java.lang.Object

org.apache.ctakes.temporal.utils.SMOTEplus

public class SMOTEplus
extends Object

A simple implementation of SMOTE algorithm. Nitesh V. Shawla et. al. SMOTE: Synthetic Minority Over-sampling Technique, 06/02 Find K nearest neighbor for each minority instance.

Author:

Chen Lin

Field Summary

Fields

Modifier and Type	Field and Description
protected com.google.common.collect.Table<org.cleartk.ml.Instance<String>,String,Integer>	instanceFeatureCount
protected com.google.common.collect.Table<org.cleartk.ml.Instance<String>,org.cleartk.ml.Instance<String>,Double>	interInstanceDistance
protected List<org.cleartk.ml.Instance<String>>	minorityInsts
protected int	numOfNearestNeighbors
protected List<org.cleartk.ml.Instance<String>>	syntheticInsts

Constructor Summary

Constructors

Constructor and Description
SMOTEplus(int numNeighbors)

Method Summary

Modifier and Type	Method and Description
void	addInstance(org.cleartk.ml.Instance<String> minorityInst)
String	getFeatureName(org.cleartk.ml.Feature feature)
Iterable<org.cleartk.ml.Instance<String>>	populateMinorityClass()

Methods inherited from class java.lang.Object

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

Field Detail

minorityInsts

protected List<org.cleartk.ml.Instance<String>> minorityInsts

instanceFeatureCount

protected com.google.common.collect.Table<org.cleartk.ml.Instance<String>,String,Integer> instanceFeatureCount

interInstanceDistance

protected com.google.common.collect.Table<org.cleartk.ml.Instance<String>,org.cleartk.ml.Instance<String>,Double> interInstanceDistance

syntheticInsts

protected List<org.cleartk.ml.Instance<String>> syntheticInsts

numOfNearestNeighbors

protected final int numOfNearestNeighbors

Constructor Detail

SMOTEplus

public SMOTEplus(int numNeighbors)

Method Detail

populateMinorityClass

public Iterable<org.cleartk.ml.Instance<String>> populateMinorityClass()

getFeatureName

public String getFeatureName(org.cleartk.ml.Feature feature)

addInstance

public void addInstance(org.cleartk.ml.Instance<String> minorityInst)