org.tribuo.data.text.impl

Class FeatureHasher

java.lang.Object

org.tribuo.data.text.impl.FeatureHasher

All Implemented Interfaces:

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

public class FeatureHasher
extends Object
implements FeatureTransformer

Hashes the feature names to reduce the dimensionality.

Constructor Summary

Constructors

Constructor and Description
FeatureHasher(int dimension)

Method Summary

Modifier and Type	Method and Description
com.oracle.labs.mlrg.olcut.provenance.ConfiguredObjectProvenance	getProvenance()
List<Feature>	map(String tag, List<Feature> features) Transforms features into a new list of 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

FeatureHasher

public FeatureHasher(int dimension)

Method Detail

map

public List<Feature> map(String tag,
                         List<Feature> features)

Description copied from interface: FeatureTransformer

Transforms features into a new list of features

Specified by:

map in interface FeatureTransformer

Parameters:

tag - The feature name tag.

features - The features to transform.

Returns:

The transformed 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>