org.apache.ignite.ml.util.generators.primitives.vector

Interface VectorGenerator

All Superinterfaces:

Supplier<Vector>

All Known Implementing Classes:

ParametricVectorGenerator, VectorGeneratorsFamily

public interface VectorGenerator
extends Supplier<Vector>

Basic interface for pseudorandom vectors generators.

Method Summary

Modifier and Type	Method and Description
default DataStreamGenerator	asDataStream() Conterts vectors generator to unlabeled data stream generator.
default VectorGenerator	concat(RandomProducer producer) Creates new generator by concatenation of vectors of this generator and random producer.
default VectorGenerator	concat(VectorGenerator other) Creates new generator by concatenation of vectors of this generator and other.
default VectorGenerator	duplicateRandomFeatures(int increaseSize) Increase vectors of generator by increaseSize and sets to new values random selected feature values from already set components.
default VectorGenerator	duplicateRandomFeatures(int increaseSize, Long seed) Increase vectors of generator by increaseSize and sets to new values random selected feature values from already set components.
default VectorGenerator	filter(IgnitePredicate<Vector> predicate) Filters values of vector generator using predicate.
default VectorGenerator	map(IgniteFunction<Vector,Vector> mapper) Maps values of vector generator using mapper.
default VectorGenerator	move(Vector v) Moves all vectors to other position by summing with input vector.
default VectorGenerator	noisify(RandomProducer randomProducer) Adds noize to all components of generated vectors.
default VectorGenerator	plus(VectorGenerator other) Creates new generator by sum of vectors of this generator and other.
default VectorGenerator	rotate(double angle) Rotate first two components of all vectors of generator by angle around zero.
default VectorGenerator	rotate(double angle, int firstComponent, int secondComponent) Rotate selected two components of all vectors of generator by angle around zero.
default VectorGenerator	shuffle() Creates a permanent rearrangement mapping of features in vector and applies this rearrangement for each vectors of current generator.
default VectorGenerator	shuffle(Long seed) Creates a permanent rearrangement mapping of features in vector and applies this rearrangement for each vectors of current generator.

Methods inherited from interface java.util.function.Supplier

get

Method Detail

map

default VectorGenerator map(IgniteFunction<Vector,Vector> mapper)

Maps values of vector generator using mapper.

Parameters:

mapper - Mapper.

Returns:

Vector generator with mapped vectors.

filter

default VectorGenerator filter(IgnitePredicate<Vector> predicate)

Filters values of vector generator using predicate.

Parameters:

predicate - Predicate.

Returns:

Vector generator with filtered vectors.

concat

default VectorGenerator concat(VectorGenerator other)

Creates new generator by concatenation of vectors of this generator and other.

Parameters:

other - Other.

Returns:

Generator of concatenated vectors.

concat

default VectorGenerator concat(RandomProducer producer)

Creates new generator by concatenation of vectors of this generator and random producer.

Parameters:

producer - Producer.

Returns:

Generator of concatenated vector and noize.

plus

default VectorGenerator plus(VectorGenerator other)

Creates new generator by sum of vectors of this generator and other.

Parameters:

other - Other.

Returns:

Generator of vector sums.

shuffle

default VectorGenerator shuffle()

Creates a permanent rearrangement mapping of features in vector and applies this rearrangement for each vectors of current generator.

Returns:

Generator of vectors with shuffled features.

shuffle

default VectorGenerator shuffle(Long seed)

Creates a permanent rearrangement mapping of features in vector and applies this rearrangement for each vectors of current generator.

Parameters:

seed - Seed.

Returns:

Generator of vectors with shuffled features.

duplicateRandomFeatures

default VectorGenerator duplicateRandomFeatures(int increaseSize)

Increase vectors of generator by increaseSize and sets to new values random selected feature values from already set components.

Parameters:

increaseSize - Increase size.

Returns:

Generator.

duplicateRandomFeatures

default VectorGenerator duplicateRandomFeatures(int increaseSize,
                                                Long seed)

Increase vectors of generator by increaseSize and sets to new values random selected feature values from already set components.

Parameters:

increaseSize - Increase size.

seed - Seed.

Returns:

Generator.

move

default VectorGenerator move(Vector v)

Moves all vectors to other position by summing with input vector.

Parameters:

v - Vector.

Returns:

Generator with old vectors plus input vector.

rotate

default VectorGenerator rotate(double angle)

Rotate first two components of all vectors of generator by angle around zero.

Parameters:

angle - Angle.

Returns:

Generator.

rotate

default VectorGenerator rotate(double angle,
                               int firstComponent,
                               int secondComponent)

Rotate selected two components of all vectors of generator by angle around zero.

Parameters:

angle - Angle.

firstComponent - First component id.

secondComponent - Second component id.

Returns:

Generator.

noisify

default VectorGenerator noisify(RandomProducer randomProducer)

Adds noize to all components of generated vectors.

Parameters:

randomProducer - Random producer.

Returns:

Generator.

asDataStream

default DataStreamGenerator asDataStream()

Conterts vectors generator to unlabeled data stream generator.

Returns:

Data stream generator.