Class VectorSequence

java.lang.Object

io.nosqlbench.virtdata.lib.vectors.primitive.VectorSequence

All Implemented Interfaces:

LongFunction<double[]>

Direct Known Subclasses:

DoubleArrayCache, GoldenAngleDoubleVectors

public abstract class VectorSequence
extends Object
implements LongFunction<double[]>

A VectorSequence is a sequence of vectors which are a deterministic map between a set of ordinal values and vector values. Ideally, they are computed with closed-form functions. If not, they should be pre-computed in cashed.

Field Summary

Fields

Modifier and Type	Field	Description
protected final long	cardinality

Constructor Summary

Constructors

Constructor	Description
VectorSequence(long cardinality)

Method Summary

Modifier and Type	Method	Description
long	getCardinality()
abstract long	getDimensions()
double	getMinimumVectorAngle()	This should return the computed minimum vector angle in radians

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.LongFunction

apply

Field Details

cardinality

protected final long cardinality

Constructor Details

VectorSequence

public VectorSequence(long cardinality)

Method Details

getDimensions

public abstract long getDimensions()

Returns:

the number of components per vector produced.

getCardinality

public long getCardinality()

Returns:

the number of unique vectors produced.

getMinimumVectorAngle

public double getMinimumVectorAngle()

This should return the computed minimum vector angle in radians

Returns:

the minimum vector angle in radians between adjacent vectors by ordinal value