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

Class ExtractionUtils.ArrayLikeVectorizer<K,V>

java.lang.Object

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

org.apache.ignite.ml.dataset.feature.extractor.ExtractionUtils.DefaultLabelVectorizer<K,V,Integer>

org.apache.ignite.ml.dataset.feature.extractor.ExtractionUtils.IntCoordVectorizer<K,V>

org.apache.ignite.ml.dataset.feature.extractor.ExtractionUtils.ArrayLikeVectorizer<K,V>

Type Parameters:

K - Type of key.

V - Type of value.

All Implemented Interfaces:

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

Direct Known Subclasses:

DoubleArrayVectorizer, DummyVectorizer

Enclosing class:

ExtractionUtils

public abstract static class ExtractionUtils.ArrayLikeVectorizer<K,V>
extends ExtractionUtils.IntCoordVectorizer<K,V>

Vectorizer extracting vectors from array-like structure with finite size and integer coordinates.

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
ArrayLikeVectorizer(Integer... coords) Creates an instance of Vectorizer.

Method Summary

Modifier and Type	Method and Description
protected List<Integer>	allCoords(K key, V value) Returns list of all coordinate with feature values.
protected abstract int	sizeOf(K key, V value) Size of array-like structure of upstream object.

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

label, zero

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

apply, createVector, exclude, extract, feature, 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

ArrayLikeVectorizer

public ArrayLikeVectorizer(Integer... coords)

Creates an instance of Vectorizer.

Parameters:

coords - Coordinates.

Method Detail

sizeOf

protected abstract int sizeOf(K key,
                              V value)

Size of array-like structure of upstream object.

Parameters:

key - Key.

value - Value.

Returns:

size.

allCoords

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

Returns list of all coordinate with feature values.

Specified by:

allCoords in class Vectorizer<K,V,Integer,Double>

Parameters:

key - Key.

value - Value.

Returns:

all coordinates list.