hex.glrm

Class GLRM

java.lang.Object

water.Iced<T>

water.Keyed

water.Job<M>

hex.ModelBuilder<GLRMModel,GLRMModel.GLRMParameters,GLRMModel.GLRMOutput>

hex.glrm.GLRM

All Implemented Interfaces:

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

Direct Known Subclasses:

PCA.EmbeddedGLRM

public class GLRM
extends hex.ModelBuilder<GLRMModel,GLRMModel.GLRMParameters,GLRMModel.GLRMOutput>

Generalized Low Rank Models This is an algorithm for dimensionality reduction of a dataset. It is a general, parallelized optimization algorithm that applies to a variety of loss and regularization functions. Categorical columns are handled by expansion into 0/1 indicator columns for each level. Generalized Low Rank Models

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GLRM.Initialization

Nested classes/interfaces inherited from class hex.ModelBuilder

hex.ModelBuilder.BuilderVisibility, hex.ModelBuilder.ValidationMessage

Nested classes/interfaces inherited from class water.Job

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

Nested classes/interfaces inherited from class water.Keyed

water.Keyed.BinarySerializer<X extends water.Keyed>

Field Summary

Fields inherited from class hex.ModelBuilder

_messages, _nclass, _offset, _parms, _response, _train, _valid, _vresponse, _weights

Fields inherited from class water.Job

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

Fields inherited from class water.Keyed

_key, EMPTY_KEY_LIST

Constructor Summary

Constructors

Constructor and Description
GLRM(GLRMModel.GLRMParameters parms)

Method Summary

Methods

Modifier and Type	Method and Description
hex.ModelBuilder.BuilderVisibility	builderVisibility()
hex.ModelCategory[]	can_build()
protected static water.fvec.Chunk	chk_xnew(water.fvec.Chunk[] chks, int c, int ncolA, int ncolX)
protected static water.fvec.Chunk	chk_xold(water.fvec.Chunk[] chks, int c, int ncolA)
static double[][]	expandCats(double[][] sdata, DataInfo dinfo)
static double	frobenius2(double[][] x)
protected static int	idx_xnew(int c, int ncolA, int ncolX)
protected static int	idx_xold(int c, int ncolA)
protected static int	idx_ycat(int c, int level, DataInfo dinfo)
protected static int	idx_ynum(int c, DataInfo dinfo)
void	init(boolean expensive)
hex.schemas.ModelBuilderSchema	schema()
water.Job<GLRMModel>	trainModel()
static double[][]	transform(double[][] centers, double[] normSub, double[] normMul, int ncats, int nnums)
protected static double[][]	yt_block(double[][] yt, int cidx, DataInfo dinfo)
protected static double[][]	yt_block(double[][] yt, int cidx, DataInfo dinfo, boolean transpose)

Methods inherited from class hex.ModelBuilder

checkMemoryFootPrint, clearInitState, computePriorClassDistribution, createModelBuilder, error_count, error, getAlgo, getAlgo, getAlgo, getAlgoFullName, getModelBuilder, getModelBuilders, getModelClass, hasOffset, hasWeights, hide, ignoreBadColumns, ignoreStringColumns, info, isClassifier, isSupervised, nclasses, registerModelBuilder, response, responseMean, separateFeatureVecs, train, updateValidationMessages, valid, validationErrors, vresponse, warn

Methods inherited from class water.Job

cancel, cancel, checksum_impl, createProgressKey, deleteProgressKey, dest, done, failed, get, isCancelledOrCrashed, isDone, isRunning, isRunning, isStopped, jobs, msec, progress_msg, progress, remove_impl, start, update, update, update, update

Methods inherited from class water.Keyed

checksum, getBinarySerializer, getPublishedKeys, 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

GLRM

public GLRM(GLRMModel.GLRMParameters parms)

Method Detail

schema

public hex.schemas.ModelBuilderSchema schema()

Specified by:

schema in class hex.ModelBuilder<GLRMModel,GLRMModel.GLRMParameters,GLRMModel.GLRMOutput>

trainModel

public water.Job<GLRMModel> trainModel()

Specified by:

trainModel in class hex.ModelBuilder<GLRMModel,GLRMModel.GLRMParameters,GLRMModel.GLRMOutput>

can_build

public hex.ModelCategory[] can_build()

Specified by:

can_build in class hex.ModelBuilder<GLRMModel,GLRMModel.GLRMParameters,GLRMModel.GLRMOutput>

builderVisibility

public hex.ModelBuilder.BuilderVisibility builderVisibility()

Specified by:

builderVisibility in class hex.ModelBuilder<GLRMModel,GLRMModel.GLRMParameters,GLRMModel.GLRMOutput>

init

public void init(boolean expensive)

Overrides:

init in class hex.ModelBuilder<GLRMModel,GLRMModel.GLRMParameters,GLRMModel.GLRMOutput>

frobenius2

public static double frobenius2(double[][] x)

transform

public static double[][] transform(double[][] centers,
                   double[] normSub,
                   double[] normMul,
                   int ncats,
                   int nnums)

expandCats

public static double[][] expandCats(double[][] sdata,
                    DataInfo dinfo)

idx_xold

protected static int idx_xold(int c,
           int ncolA)

idx_xnew

protected static int idx_xnew(int c,
           int ncolA,
           int ncolX)

idx_ycat

protected static int idx_ycat(int c,
           int level,
           DataInfo dinfo)

idx_ynum

protected static int idx_ynum(int c,
           DataInfo dinfo)

chk_xold

protected static water.fvec.Chunk chk_xold(water.fvec.Chunk[] chks,
                        int c,
                        int ncolA)

chk_xnew

protected static water.fvec.Chunk chk_xnew(water.fvec.Chunk[] chks,
                        int c,
                        int ncolA,
                        int ncolX)

yt_block

protected static double[][] yt_block(double[][] yt,
                  int cidx,
                  DataInfo dinfo)

yt_block

protected static double[][] yt_block(double[][] yt,
                  int cidx,
                  DataInfo dinfo,
                  boolean transpose)