ai.libs.jaicore.ml.core.dataset.sampling.inmemory.casecontrol

Class ClassifierWeightedSampling<I extends ILabeledInstance<?>,D extends IOrderedDataset<I>>

java.lang.Object

ai.libs.jaicore.basic.algorithm.AAlgorithm<D,D>

ai.libs.jaicore.ml.core.dataset.sampling.inmemory.ASamplingAlgorithm<D>

ai.libs.jaicore.ml.core.dataset.sampling.inmemory.casecontrol.CaseControlLikeSampling<I,D>

ai.libs.jaicore.ml.core.dataset.sampling.inmemory.casecontrol.ClassifierWeightedSampling<I,D>

Type Parameters:

I -

All Implemented Interfaces:

ai.libs.jaicore.basic.algorithm.IAlgorithm<D,D>, ai.libs.jaicore.basic.Cancelable, ai.libs.jaicore.basic.ILoggingCustomizable, ISamplingAlgorithm<D>, java.lang.Iterable<ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent>, java.util.concurrent.Callable<D>, java.util.Iterator<ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent>

public class ClassifierWeightedSampling<I extends ILabeledInstance<?>,D extends IOrderedDataset<I>>
extends CaseControlLikeSampling<I,D>

The idea behind this Sampling method is to weight instances depended on the way a pilot estimator p classified them. Instances that p classified right but was unsure contain the most information and are most likely to be chosen. Instances that p is very sure about and Instances that p is quite sure about their actual class and classified them falsely, are medium likely to be chosen. Instances that p is very unsure about their actual class and classified them falsely are not likely to be chosen. Note that any instance still has a base probability to be chosen.

Field Summary

Fields inherited from class ai.libs.jaicore.ml.core.dataset.sampling.inmemory.casecontrol.CaseControlLikeSampling

probabilityBoundaries, rand

Fields inherited from class ai.libs.jaicore.ml.core.dataset.sampling.inmemory.ASamplingAlgorithm

sample, sampleSize

Constructor Summary

Constructors

Constructor and Description
ClassifierWeightedSampling(java.util.Random rand, weka.core.Instances instances, D input)

Method Summary

Modifier and Type	Method and Description
ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent	nextWithException()

Methods inherited from class ai.libs.jaicore.ml.core.dataset.sampling.inmemory.casecontrol.CaseControlLikeSampling

calculateInstanceBoundaries, countClassOccurrences, getProbabilityBoundaries, setProbabilityBoundaries

Methods inherited from class ai.libs.jaicore.ml.core.dataset.sampling.inmemory.ASamplingAlgorithm

call, doInactiveStep, setSampleSize

Methods inherited from class ai.libs.jaicore.basic.algorithm.AAlgorithm

activate, announceTimeoutDetected, avoidReinterruptionOnShutdownOnCurrentThread, cancel, checkAndConductTermination, checkTermination, computeTimeoutAware, getActivationTime, getConfig, getId, getInput, getLoggerName, getNumCPUs, getRemainingTimeToDeadline, getState, getTimeout, getTimeoutPrecautionOffset, hasNext, hasThreadBeenInterruptedDuringShutdown, interruptThreadAsPartOfShutdown, isCanceled, isShutdownInitialized, isStopCriterionSatisfied, isTimeouted, iterator, next, post, registerActiveThread, registerListener, resolveShutdownInterruptOnCurrentThread, setConfig, setLoggerName, setMaxNumThreads, setNumCPUs, setState, setTimeout, setTimeout, setTimeoutPrecautionOffset, shutdown, terminate, unregisterActiveThread, unregisterThreadAndShutdown

Methods inherited from class java.lang.Object

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

Methods inherited from interface ai.libs.jaicore.basic.algorithm.IAlgorithm

getConfig, getId, getInput, getNumCPUs, getTimeout, registerListener, setMaxNumThreads, setNumCPUs, setTimeout, setTimeout

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next, remove

Methods inherited from interface ai.libs.jaicore.basic.Cancelable

cancel

Constructor Detail

ClassifierWeightedSampling

public ClassifierWeightedSampling(java.util.Random rand,
                                  weka.core.Instances instances,
                                  D input)

Method Detail

nextWithException

public ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent nextWithException()
                                                                        throws java.lang.InterruptedException,
                                                                               ai.libs.jaicore.basic.algorithm.AlgorithmExecutionCanceledException,
                                                                               ai.libs.jaicore.basic.algorithm.exceptions.AlgorithmException

Throws:

java.lang.InterruptedException

ai.libs.jaicore.basic.algorithm.AlgorithmExecutionCanceledException

ai.libs.jaicore.basic.algorithm.exceptions.AlgorithmException