hex.kmeans

Class KMeans

java.lang.Object

water.Iced

water.Keyed

water.Job<M>

hex.ModelBuilder<KMeansModel,KMeansModel.KMeansParameters,KMeansModel.KMeansOutput>

hex.kmeans.KMeans

All Implemented Interfaces:

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

public class KMeans
extends hex.ModelBuilder<KMeansModel,KMeansModel.KMeansParameters,KMeansModel.KMeansOutput>

Scalable K-Means++ (KMeans||)
http://theory.stanford.edu/~sergei/papers/vldb12-kmpar.pdf
http://www.youtube.com/watch?v=cigXAxV3XcY

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	KMeans.Initialization

Nested classes/interfaces inherited from class hex.ModelBuilder

hex.ModelBuilder.ValidationMessage

Nested classes/interfaces inherited from class water.Job

water.Job.JobCancelledException, water.Job.JobState, water.Job.Progress, water.Job.ProgressUpdate

Field Summary

Fields inherited from class hex.ModelBuilder

_messages, _parms, _train, _valid

Fields inherited from class water.Job

_description, _dest, _end_time, _exception, _progressKey, _start_time, _state

Fields inherited from class water.Keyed

_key

Constructor Summary

Constructors

Constructor and Description
KMeans(KMeansModel.KMeansParameters parms)

Method Summary

Methods

Modifier and Type	Method and Description
hex.Model.ModelCategory[]	can_build()
void	init(boolean expensive) Initialize the ModelBuilder, validating all arguments and preparing the training frame.
hex.schemas.ModelBuilderSchema	schema()
water.Job<KMeansModel>	trainModel() Start the KMeans training Job on an F/J thread.

Methods inherited from class hex.ModelBuilder

clearInitState, createModelBuilder, error_count, error, getAlgo, getModelBuilder, getModelBuilderName, getModelBuilders, getModelClass, hide, info, registerModelBuilder, train, valid, validationErrors, warn

Methods inherited from class water.Job

cancel, cancel, cancel2, checksum, dest, done, get, isCancelledOrCrashed, isDone, isRunning, isRunning, isStopped, jobs, msec, onCancelled, progress, remove_impl, start, update, update

Methods inherited from class water.Keyed

remove, remove, remove, remove

Methods inherited from class water.Iced

clone, frozenType, read_impl, read, readExternal, readJSON_impl, readJSON, toJsonString, write_impl, write, writeExternal, writeHTML_impl, writeHTML, writeJSON_impl, writeJSON

Methods inherited from class java.lang.Object

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

Constructor Detail

KMeans

public KMeans(KMeansModel.KMeansParameters parms)

Method Detail

can_build

public hex.Model.ModelCategory[] can_build()

Specified by:

can_build in class hex.ModelBuilder<KMeansModel,KMeansModel.KMeansParameters,KMeansModel.KMeansOutput>

schema

public hex.schemas.ModelBuilderSchema schema()

Specified by:

schema in class hex.ModelBuilder<KMeansModel,KMeansModel.KMeansParameters,KMeansModel.KMeansOutput>

trainModel

public water.Job<KMeansModel> trainModel()

Start the KMeans training Job on an F/J thread.

Specified by:

trainModel in class hex.ModelBuilder<KMeansModel,KMeansModel.KMeansParameters,KMeansModel.KMeansOutput>

init

public void init(boolean expensive)

Initialize the ModelBuilder, validating all arguments and preparing the training frame. This call is expected to be overridden in the subclasses and each subclass will start with "super.init();". Validate K, max_iters and the number of rows. Precompute the number of categorical columns.

Overrides:

init in class hex.ModelBuilder<KMeansModel,KMeansModel.KMeansParameters,KMeansModel.KMeansOutput>