org.apache.ignite.ml.trainers

Interface FeatureLabelExtractor<K,V,L>

Type Parameters:

K - Type of keys.

V - Type of values.

L - Type of labels.

All Superinterfaces:

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

All Known Implementing Classes:

BinaryObjectVectorizer, DoubleArrayVectorizer, DummyVectorizer, ExtractionUtils.ArrayLikeVectorizer, ExtractionUtils.DefaultLabelVectorizer, ExtractionUtils.IntCoordVectorizer, ExtractionUtils.StringCoordVectorizer, LabeledDummyVectorizer, Vectorizer, Vectorizer.VectorizerAdapter

public interface FeatureLabelExtractor<K,V,L>
extends Preprocessor<K,V>

Class fro extracting features and vectors from upstream.

Method Summary

Modifier and Type	Method and Description
LabeledVector<L>	extract(K k, V v) Extract LabeledVector from key and value.
default Vector	extractFeatures(K key, V val) Extract features from key and value.
default L	extractLabel(K key, V val) Extract label from key and value.

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, apply

Method Detail

extract

LabeledVector<L> extract(K k,
                         V v)

Extract LabeledVector from key and value.

Parameters:

k - Key.

v - Value.

Returns:

Labeled vector.

extractFeatures

default Vector extractFeatures(K key,
                               V val)

Extract features from key and value.

Parameters:

key - Key.

val - Value.

Returns:

Features vector.

extractLabel

default L extractLabel(K key,
                       V val)

Extract label from key and value.

Parameters:

key - Key.

val - Value.

Returns:

Label.