org.apache.ignite.ml.dataset.feature.extractor

Class Vectorizer.VectorizerAdapter<K,V,C extends Serializable,L>

java.lang.Object

org.apache.ignite.ml.dataset.feature.extractor.Vectorizer<K,V,C,L>

org.apache.ignite.ml.dataset.feature.extractor.Vectorizer.VectorizerAdapter<K,V,C,L>

Type Parameters:

K - Type of key.

V - Type of value.

C - Type of coordinate.

L - Type od label.

All Implemented Interfaces:

Serializable, BiFunction<K,V,LabeledVector>, IgniteBiFunction<K,V,LabeledVector>, Preprocessor<K,V>, FeatureLabelExtractor<K,V,L>

Enclosing class:

Vectorizer<K,V,C extends Serializable,L>

public abstract static class Vectorizer.VectorizerAdapter<K,V,C extends Serializable,L>
extends Vectorizer<K,V,C,L>

Utility class for convenient overridings.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.ignite.ml.dataset.feature.extractor.Vectorizer

Vectorizer.LabelCoordinate, Vectorizer.VectorizerAdapter<K,V,C extends Serializable,L>

Constructor Summary

Constructors

Constructor and Description
VectorizerAdapter()

Method Summary

Modifier and Type	Method and Description
protected List<C>	allCoords(K key, V value) Returns list of all coordinate with feature values.
protected Double	feature(C coord, K key, V value) Extracts feature value by given coordinate.
protected L	label(C coord, K key, V value) Extract label value by given coordinate.
protected L	zero() Returns default label value for unlabeled data.

Methods inherited from class org.apache.ignite.ml.dataset.feature.extractor.Vectorizer

apply, createVector, exclude, extract, labeled, labeled

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.ml.trainers.FeatureLabelExtractor

extractFeatures, extractLabel

Methods inherited from interface org.apache.ignite.ml.preprocessing.Preprocessor

map

Methods inherited from interface org.apache.ignite.ml.math.functions.IgniteBiFunction

andThen

Methods inherited from interface java.util.function.BiFunction

andThen

Constructor Detail

VectorizerAdapter

public VectorizerAdapter()

Method Detail

feature

protected Double feature(C coord,
                         K key,
                         V value)

Extracts feature value by given coordinate.

Specified by:

feature in class Vectorizer<K,V,C extends Serializable,L>

Parameters:

coord - Coordinate.

key - Key.

value - Value.

Returns:

feature value.

label

protected L label(C coord,
                  K key,
                  V value)

Extract label value by given coordinate.

Specified by:

label in class Vectorizer<K,V,C extends Serializable,L>

Parameters:

coord - Coordinate.

key - Key.

value - Value.

Returns:

label value.

zero

protected L zero()

Returns default label value for unlabeled data.

Specified by:

zero in class Vectorizer<K,V,C extends Serializable,L>

Returns:

label value.

allCoords

protected List<C> allCoords(K key,
                            V value)

Returns list of all coordinate with feature values.

Specified by:

allCoords in class Vectorizer<K,V,C extends Serializable,L>

Parameters:

key - Key.

value - Value.

Returns:

all coordinates list.