org.tribuo.data.columnar.processors.feature

Class UniqueProcessor

java.lang.Object

org.tribuo.data.columnar.processors.feature.UniqueProcessor

All Implemented Interfaces:

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

public class UniqueProcessor
extends Object
implements FeatureProcessor

Processes a feature list, aggregating all the feature values with the same name.

The aggregation is user controllable.

In most cases this will be unnecessary as the feature names will be unique as they are keyed by the field name, however it's possible to induce collisions via text fields or other mechanisms.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UniqueProcessor.UniqueType The type of reduction operation to perform.

Constructor Summary

Constructors

Constructor and Description
UniqueProcessor(UniqueProcessor.UniqueType reductionType) Creates a UniqueProcessor using the specified reduction operation.

Method Summary

Modifier and Type	Method and Description
com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance	getProvenance()
List<ColumnarFeature>	process(List<ColumnarFeature> features) Processes a list of ColumnarFeatures, transforming it by adding conjunctions or removing unnecessary features.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.labs.mlrg.olcut.config.Configurable

postConfig

Constructor Detail

UniqueProcessor

public UniqueProcessor(UniqueProcessor.UniqueType reductionType)

Creates a UniqueProcessor using the specified reduction operation.

Parameters:

reductionType - The reduction operation to perform.

Method Detail

process

public List<ColumnarFeature> process(List<ColumnarFeature> features)

Description copied from interface: FeatureProcessor

Processes a list of ColumnarFeatures, transforming it by adding conjunctions or removing unnecessary features.

Specified by:

process in interface FeatureProcessor

Parameters:

features - The list of features to process.

Returns:

A (possibly empty) list of features.

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>