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

Class DoubleArrayVectorizer<K>

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,double[]>

org.apache.ignite.ml.dataset.feature.extractor.impl.DoubleArrayVectorizer<K>

Type Parameters:

K - Key type.

All Implemented Interfaces:

Serializable, BiFunction<K,double[],LabeledVector>, DeployableObject, IgniteBiFunction<K,double[],LabeledVector>, Preprocessor<K,double[]>, FeatureLabelExtractor<K,double[],Double>

public final class DoubleArrayVectorizer<K>
extends ExtractionUtils.ArrayLikeVectorizer<K,double[]>
implements DeployableObject

Vectorizer on arrays of doubles.

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

Method Summary

Modifier and Type	Method and Description
protected Double	feature(Integer coord, K key, double[] value) Extracts feature value by given coordinate.
List<Object>	getDependencies() Returns dependencies of this object that can be object with class defined by client side and unknown for server.
protected int	sizeOf(K key, double[] value) Size of array-like structure of upstream object.

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

allCoords

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, 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

DoubleArrayVectorizer

public DoubleArrayVectorizer(Integer... coords)

Creates an instance of Vectorizer.

Parameters:

coords - Coordinates.

Method Detail

feature

protected Double feature(Integer coord,
                         K key,
                         double[] value)

Extracts feature value by given coordinate.

Specified by:

feature in class Vectorizer<K,double[],Integer,Double>

Parameters:

coord - Coordinate.

key - Key.

value - Value.

Returns:

feature value.

sizeOf

protected int sizeOf(K key,
                     double[] value)

Size of array-like structure of upstream object.

Specified by:

sizeOf in class ExtractionUtils.ArrayLikeVectorizer<K,double[]>

Parameters:

key - Key.

value - Value.

Returns:

size.

getDependencies

public List<Object> getDependencies()

Returns dependencies of this object that can be object with class defined by client side and unknown for server.

Specified by:

getDependencies in interface DeployableObject