Module org.apache.lucene.core

Package org.apache.lucene.codecs.lucene99

Class ScalarQuantizedRandomVectorScorer

java.lang.Object

org.apache.lucene.util.hnsw.RandomVectorScorer.AbstractRandomVectorScorer<byte[]>

org.apache.lucene.codecs.lucene99.ScalarQuantizedRandomVectorScorer

All Implemented Interfaces:

RandomVectorScorer

final class ScalarQuantizedRandomVectorScorer
extends RandomVectorScorer.AbstractRandomVectorScorer<byte[]>

Quantized vector scorer

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.lucene.util.hnsw.RandomVectorScorer

RandomVectorScorer.AbstractRandomVectorScorer<T>

Field Summary

Fields

Modifier and Type	Field	Description
private final byte[]	quantizedQuery
private final float	queryOffset
private final ScalarQuantizedVectorSimilarity	similarity
private final RandomAccessQuantizedByteVectorValues	values

Constructor Summary

Constructors

Constructor	Description
ScalarQuantizedRandomVectorScorer(VectorSimilarityFunction similarityFunction, ScalarQuantizer scalarQuantizer, RandomAccessQuantizedByteVectorValues values, float[] query)
ScalarQuantizedRandomVectorScorer(ScalarQuantizedVectorSimilarity similarityFunction, RandomAccessQuantizedByteVectorValues values, byte[] query, float queryOffset)

Method Summary

Modifier and Type	Method	Description
private static float	quantizeQuery(float[] query, byte[] quantizedQuery, VectorSimilarityFunction similarityFunction, ScalarQuantizer scalarQuantizer)
float	score(int node)	Returns the score between the query and the provided node.

Methods inherited from class org.apache.lucene.util.hnsw.RandomVectorScorer.AbstractRandomVectorScorer

getAcceptOrds, maxOrd, ordToDoc

Methods inherited from class java.lang.Object

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

Field Details

quantizedQuery

private final byte[] quantizedQuery

queryOffset

private final float queryOffset

values

private final RandomAccessQuantizedByteVectorValues values

similarity

private final ScalarQuantizedVectorSimilarity similarity

Constructor Details

ScalarQuantizedRandomVectorScorer

ScalarQuantizedRandomVectorScorer(ScalarQuantizedVectorSimilarity similarityFunction,
 RandomAccessQuantizedByteVectorValues values,
 byte[] query,
 float queryOffset)

ScalarQuantizedRandomVectorScorer

ScalarQuantizedRandomVectorScorer(VectorSimilarityFunction similarityFunction,
 ScalarQuantizer scalarQuantizer,
 RandomAccessQuantizedByteVectorValues values,
 float[] query)

Method Details

quantizeQuery

private static float quantizeQuery(float[] query,
 byte[] quantizedQuery,
 VectorSimilarityFunction similarityFunction,
 ScalarQuantizer scalarQuantizer)

score

public float score(int node)
            throws IOException

Description copied from interface: RandomVectorScorer

Returns the score between the query and the provided node.

Parameters:

node - a random node in the graph

Returns:

the computed score

Throws:

IOException