hex.adaboost

Class AdaBoost

java.lang.Object

water.Iced

hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

hex.adaboost.AdaBoost

All Implemented Interfaces:

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

public class AdaBoost
extends hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

Implementation of AdaBoost algorithm based on Raul Rojas, "Adaboost and the Super Bowl of Classifiers A Tutorial Introduction to Adaptive Boosting" Alexandru Niculescu-Mizil and Richard A. Caruana, "Obtaining Calibrated Probabilities from Boosting" Y. Freund, R. Schapire, “A Decision-Theoretic Generalization of on-Line Learning and an Application to Boosting”, 1995.

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 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
AdaBoost(AdaBoostModel.AdaBoostParameters parms)
AdaBoost(boolean startup_once)

Method Summary

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

Methods inherited from class hex.ModelBuilder

algoName, algos, canLearnFromNAs, checkCustomMetricForEarlyStopping, checkDistributions, checkEarlyStoppingReproducibility, checkMemoryFootPrint_impl, 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

Constructor Detail

AdaBoost

public AdaBoost(AdaBoostModel.AdaBoostParameters parms)

AdaBoost

public AdaBoost(boolean startup_once)

Method Detail

havePojo

public boolean havePojo()

Overrides:

havePojo in class hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

haveMojo

public boolean haveMojo()

Overrides:

haveMojo in class hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

init

public void init(boolean expensive)

Overrides:

init in class hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

trainModelImpl

protected hex.ModelBuilder.Driver trainModelImpl()

Specified by:

trainModelImpl in class hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

builderVisibility

public hex.ModelBuilder.BuilderVisibility builderVisibility()

Overrides:

builderVisibility in class hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

can_build

public hex.ModelCategory[] can_build()

Specified by:

can_build in class hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

isSupervised

public boolean isSupervised()

Specified by:

isSupervised in class hex.ModelBuilder<AdaBoostModel,AdaBoostModel.AdaBoostParameters,AdaBoostModel.AdaBoostOutput>

createModelSummaryTable

public water.util.TwoDimTable createModelSummaryTable()