Module org.apache.lucene.core
Class Lucene99ScalarQuantizedVectorsWriter.QuantizedFloatVectorValues
java.lang.Object
org.apache.lucene.index.KnnVectorValues
org.apache.lucene.index.ByteVectorValues
org.apache.lucene.util.quantization.QuantizedByteVectorValues
org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsWriter.QuantizedFloatVectorValues
- All Implemented Interfaces:
HasIndexSlice
- Enclosing class:
Lucene99ScalarQuantizedVectorsWriter
static class Lucene99ScalarQuantizedVectorsWriter.QuantizedFloatVectorValues
extends QuantizedByteVectorValues
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.index.KnnVectorValues
KnnVectorValues.DocIndexIterator
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate int
private float
private final byte[]
private final ScalarQuantizer
private final FloatVectorValues
private final VectorSimilarityFunction
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Constructor Summary
ConstructorsConstructorDescriptionQuantizedFloatVectorValues
(FloatVectorValues values, VectorSimilarityFunction vectorSimilarityFunction, ScalarQuantizer quantizer) -
Method Summary
Modifier and TypeMethodDescriptionint
Return the dimension of the vectorsfloat
getScoreCorrectionConstant
(int ord) iterator()
Create an iterator for this instance.int
ordToDoc
(int ord) Return the docid of the document indexed with the given vector ordinal.private float
quantize
(int ord) scorer
(float[] target) Return aVectorScorer
for the given query vector.int
size()
Return the number of vectors for this field.byte[]
vectorValue
(int ord) Return the vector value for the given vector ordinal which must be in [0, size() - 1], otherwise IndexOutOfBoundsException is thrown.Methods inherited from class org.apache.lucene.util.quantization.QuantizedByteVectorValues
copy, getScalarQuantizer, getSlice
Methods inherited from class org.apache.lucene.index.ByteVectorValues
checkField, fromBytes, getEncoding, scorer
Methods inherited from class org.apache.lucene.index.KnnVectorValues
createDenseIterator, createSparseIterator, fromDISI, getAcceptOrds, getVectorByteLength
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Field Details
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values
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quantizer
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quantizedVector
private final byte[] quantizedVector -
lastOrd
private int lastOrd -
offsetValue
private float offsetValue -
vectorSimilarityFunction
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Constructor Details
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QuantizedFloatVectorValues
public QuantizedFloatVectorValues(FloatVectorValues values, VectorSimilarityFunction vectorSimilarityFunction, ScalarQuantizer quantizer)
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Method Details
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getScoreCorrectionConstant
public float getScoreCorrectionConstant(int ord) - Specified by:
getScoreCorrectionConstant
in classQuantizedByteVectorValues
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dimension
public int dimension()Description copied from class:KnnVectorValues
Return the dimension of the vectors- Specified by:
dimension
in classKnnVectorValues
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size
public int size()Description copied from class:KnnVectorValues
Return the number of vectors for this field.- Specified by:
size
in classKnnVectorValues
- Returns:
- the number of vectors returned by this iterator
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vectorValue
Description copied from class:ByteVectorValues
Return the vector value for the given vector ordinal which must be in [0, size() - 1], otherwise IndexOutOfBoundsException is thrown. The returned array may be shared across calls.- Specified by:
vectorValue
in classByteVectorValues
- Returns:
- the vector value
- Throws:
IOException
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scorer
Description copied from class:QuantizedByteVectorValues
Return aVectorScorer
for the given query vector.- Overrides:
scorer
in classQuantizedByteVectorValues
- Parameters:
target
- the query vector- Returns:
- a
VectorScorer
instance or null - Throws:
IOException
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quantize
- Throws:
IOException
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ordToDoc
public int ordToDoc(int ord) Description copied from class:KnnVectorValues
Return the docid of the document indexed with the given vector ordinal. This default implementation returns the argument and is appropriate for dense values implementations where every doc has a single value.- Overrides:
ordToDoc
in classKnnVectorValues
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iterator
Description copied from class:KnnVectorValues
Create an iterator for this instance.- Overrides:
iterator
in classKnnVectorValues
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