hex.tree.isoforextended

Class ExtendedIsolationForest

java.lang.Object

water.Iced

hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

hex.tree.isoforextended.ExtendedIsolationForest

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, water.Freezable

public class ExtendedIsolationForest
extends hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

Extended isolation forest implementation. Algorithm comes from https://arxiv.org/pdf/1811.02141.pdf paper.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class hex.ModelBuilder

hex.ModelBuilder.BuilderVisibility, hex.ModelBuilder.Driver, hex.ModelBuilder.FilterCols, hex.ModelBuilder.ModelTrainingCoordinator, hex.ModelBuilder.ValidationMessage

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_NTREES
static int	MAX_SAMPLE_SIZE

Fields inherited from class hex.ModelBuilder

_coordinator, _desc, _eventPublisher, _fold, _input_parms, _job, _messages, _nclass, _offset, _orig_projection_array, _origDomains, _origNames, _origTrain, _parms, _priorClassDist, _removedCols, _response, _result, _startUpOnceModelBuilder, _train, _treatment, _valid, _vresponse, _weights

Constructor Summary

Constructors

Constructor and Description
ExtendedIsolationForest(boolean startup_once)
ExtendedIsolationForest(ExtendedIsolationForestModel.ExtendedIsolationForestParameters parms)
ExtendedIsolationForest(ExtendedIsolationForestModel.ExtendedIsolationForestParameters parms, water.Job job)
ExtendedIsolationForest(ExtendedIsolationForestModel.ExtendedIsolationForestParameters parms, water.Key<ExtendedIsolationForestModel> key)

Method Summary

Modifier and Type	Method and Description
hex.ModelCategory[]	can_build()
protected void	checkMemoryFootPrint_impl()
water.util.TwoDimTable	createModelSummaryTable()
protected water.util.TwoDimTable	createScoringHistoryTable(int ntreesTrained)
boolean	haveMojo()
boolean	havePojo()
void	init(boolean expensive)
boolean	isSupervised()
protected hex.ModelBuilder.Driver	trainModelImpl()

Methods inherited from class hex.ModelBuilder

algoName, algos, builderVisibility, canLearnFromNAs, checkCustomMetricForEarlyStopping, checkDistributions, checkEarlyStoppingReproducibility, checkMemoryFootPrint, checkResponseVariable, clearInitState, clearValidationErrors, computeCrossValidation, computePriorClassDistribution, cv_buildModels, cv_canBuildMainModelInParallel, cv_computeAndSetOptimalParameters, cv_initStoppingParameters, cv_mainModelScores, cv_makeAggregateModelMetrics, cv_scoreCVModels, cv_updateOptimalParameters, defaultKey, desiredChunks, dest, error_count, error, get, getMessagesByFieldAndSeverity, getName, getSysProperty, getToEigenVec, hasFoldCol, hasOffsetCol, hasTreatmentCol, hasWeightCol, hide, ignoreBadColumns, ignoreConstColumns, ignoreInvalidColumns, ignoreStringColumns, ignoreUuidColumns, info, init_adaptFrameToTrain, init_getNClass, initWorkspace, isClassifier, isResponseOptional, isStopped, javaName, logMe, make, make, make, makeCVMetrics, makeCVModelBuilder, makeParameters, makePojoWriter, message, nclasses, nFoldCV, nFoldWork, nModelsInParallel, nModelsInParallel, nModelsInParallel, numSpecialCols, paramName, raiseReproducibilityWarning, rebalance, remainingTimeSecs, response, schemaDirectory, separateFeatureVecs, setMaxRuntimeSecsForMainModel, setTrain, setValid, shouldReorder, smallDataSize, stop_requested, timeout, train, trainModel, trainModel, trainModelNested, trainModelNested, trainModelOnH2ONode, valid, validateBinaryResponse, validateStoppingMetric, validationErrors, validationWarnings, vresponse, warn

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

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

Field Detail

MAX_NTREES

public static final int MAX_NTREES

See Also:

Constant Field Values

MAX_SAMPLE_SIZE

public static final int MAX_SAMPLE_SIZE

See Also:

Constant Field Values

Constructor Detail

ExtendedIsolationForest

public ExtendedIsolationForest(ExtendedIsolationForestModel.ExtendedIsolationForestParameters parms)

ExtendedIsolationForest

public ExtendedIsolationForest(ExtendedIsolationForestModel.ExtendedIsolationForestParameters parms,
                               water.Key<ExtendedIsolationForestModel> key)

ExtendedIsolationForest

public ExtendedIsolationForest(ExtendedIsolationForestModel.ExtendedIsolationForestParameters parms,
                               water.Job job)

ExtendedIsolationForest

public ExtendedIsolationForest(boolean startup_once)

Method Detail

checkMemoryFootPrint_impl

protected void checkMemoryFootPrint_impl()

Overrides:

checkMemoryFootPrint_impl in class hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

init

public void init(boolean expensive)

Overrides:

init in class hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

trainModelImpl

protected hex.ModelBuilder.Driver trainModelImpl()

Specified by:

trainModelImpl in class hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

can_build

public hex.ModelCategory[] can_build()

Specified by:

can_build in class hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

isSupervised

public boolean isSupervised()

Specified by:

isSupervised in class hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

havePojo

public boolean havePojo()

Overrides:

havePojo in class hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

haveMojo

public boolean haveMojo()

Overrides:

haveMojo in class hex.ModelBuilder<ExtendedIsolationForestModel,ExtendedIsolationForestModel.ExtendedIsolationForestParameters,ExtendedIsolationForestModel.ExtendedIsolationForestOutput>

createModelSummaryTable

public water.util.TwoDimTable createModelSummaryTable()

createScoringHistoryTable

protected water.util.TwoDimTable createScoringHistoryTable(int ntreesTrained)