ai.libs.jaicore.ml.core.dataset.sampling.infiles

Class SystematicFileSampling

java.lang.Object

ai.libs.jaicore.basic.algorithm.AAlgorithm<java.io.File,java.io.File>

ai.libs.jaicore.ml.core.dataset.sampling.infiles.AFileSamplingAlgorithm

ai.libs.jaicore.ml.core.dataset.sampling.infiles.SystematicFileSampling

All Implemented Interfaces:

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

public class SystematicFileSampling
extends AFileSamplingAlgorithm

File-level implementation of Systematic Sampling: Sort datapoints and pick every k-th datapoint for the sample.

Field Summary

Fields inherited from class ai.libs.jaicore.ml.core.dataset.sampling.infiles.AFileSamplingAlgorithm

outputFileWriter, sampleSize

Constructor Summary

Constructors

Constructor and Description
SystematicFileSampling(java.util.Random random, java.util.Comparator<java.lang.String> datapointComparator, java.io.File input) Constructor for a custom datapoint comparator.
SystematicFileSampling(java.util.Random random, java.io.File input) Simple constructor that uses the default datapoint comparator.

Method Summary

Modifier and Type	Method and Description
protected void	cleanUp() Implement custom clean up behaviour.
ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent	nextWithException()

Methods inherited from class ai.libs.jaicore.ml.core.dataset.sampling.infiles.AFileSamplingAlgorithm

call, setOutputFileName, 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 java.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Detail

SystematicFileSampling

public SystematicFileSampling(java.util.Random random,
                              java.io.File input)

Simple constructor that uses the default datapoint comparator.

Parameters:

random - Random Object for determining the sampling start point.

SystematicFileSampling

public SystematicFileSampling(java.util.Random random,
                              java.util.Comparator<java.lang.String> datapointComparator,
                              java.io.File input)

Constructor for a custom datapoint comparator.

Parameters:

random - Random Object for determining the sampling start point.

datapointComparator - Comparator to sort the dataset.

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

cleanUp

protected void cleanUp()

Description copied from class: AFileSamplingAlgorithm

Implement custom clean up behaviour.

Specified by:

cleanUp in class AFileSamplingAlgorithm