org.tribuo.transform

Class TransformationMap

java.lang.Object

org.tribuo.transform.TransformationMap

All Implemented Interfaces:

com.oracle.labs.mlrg.olcut.config.Configurable, com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>

public class TransformationMap
extends Object
implements com.oracle.labs.mlrg.olcut.config.Configurable, com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>

A carrier type for a set of transformations to be applied to a Dataset.

Feature specific transformations are specified using a regex. If multiple regexes match a given feature, then an IllegalArgumentException is thrown when Dataset.createTransformers(TransformationMap) is called.

Global transformations are applied after all feature specific transformations.

Transformations only operate on observed values. To operate on implicit zeros then first call MutableDataset.densify() on the datasets.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TransformationMap.TransformationList A carrier type as OLCUT does not support nested generics.

Constructor Summary

Constructors

Constructor and Description
TransformationMap(List<Transformation> globalTransformations)
TransformationMap(List<Transformation> globalTransformations, Map<String,List<Transformation>> featureTransformations)
TransformationMap(Map<String,List<Transformation>> featureTransformations)

Method Summary

Modifier and Type	Method and Description
Map<String,List<Transformation>>	getFeatureTransformations() Gets the map of feature specific transformations.
List<Transformation>	getGlobalTransformations() Gets the global transformations in this TransformationMap.
com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance	getProvenance()
void	postConfig() Used by the OLCUT configuration system, and should not be called by external code.
String	toString()
boolean	validateTransformations(FeatureMap featureMap) Checks that a given transformation set doesn't have conflicts when applied to the supplied featureMap.

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformationMap

public TransformationMap(List<Transformation> globalTransformations,
                         Map<String,List<Transformation>> featureTransformations)

TransformationMap

public TransformationMap(List<Transformation> globalTransformations)

TransformationMap

public TransformationMap(Map<String,List<Transformation>> featureTransformations)

Method Detail

postConfig

public void postConfig()

Used by the OLCUT configuration system, and should not be called by external code.

Specified by:

postConfig in interface com.oracle.labs.mlrg.olcut.config.Configurable

validateTransformations

public boolean validateTransformations(FeatureMap featureMap)

Checks that a given transformation set doesn't have conflicts when applied to the supplied featureMap.

Parameters:

featureMap - The featureMap to check.

Returns:

True if the transformation set doesn't have conflicts, false otherwise.

toString

public String toString()

Overrides:

toString in class Object

getGlobalTransformations

public List<Transformation> getGlobalTransformations()

Gets the global transformations in this TransformationMap.

Returns:

The global transformations

getFeatureTransformations

public Map<String,List<Transformation>> getFeatureTransformations()

Gets the map of feature specific transformations.

Returns:

The feature specific transformations.

getProvenance

public com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance getProvenance()

Specified by:

getProvenance in interface com.oracle.labs.mlrg.olcut.provenance.Provenancable<com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance>