public class ObjectByteVectorL2 extends ObjectByteVector
ObjectByteVector
with an L2 (Euclidean) metric distance.LocalAbstractObject.DataEqualObject, LocalAbstractObject.TextStreamFactory<T extends LocalAbstractObject>, LocalAbstractObject.TrivialDistanceFunction
data
counterDistanceComputations, counterLowerBoundDistanceComputations, counterPrecomputedDistanceSavings, counterUpperBoundDistanceComputations, MAX_DISTANCE, MIN_DISTANCE, suppData, trivialDistanceFunction, UNKNOWN_DISTANCE
Modifier | Constructor and Description |
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protected |
ObjectByteVectorL2(BinaryInput input,
BinarySerializator serializator)
Creates a new instance of ObjectByteVectorL2 loaded from binary input buffer.
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ObjectByteVectorL2(java.io.BufferedReader stream)
Creates a new instance of ObjectByteVectorL2 from text stream.
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ObjectByteVectorL2(byte[] data)
Creates a new instance of ObjectByteVectorL2.
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ObjectByteVectorL2(int dimension)
Creates a new instance of ObjectByteVectorL2 with randomly generated content data.
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Modifier and Type | Method and Description |
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protected float |
getDistanceImpl(LocalAbstractObject obj,
float distThreshold)
The actual implementation of the metric function (see
LocalAbstractObject.getDistance(messif.objects.LocalAbstractObject) for full explanation). |
binarySerialize, cloneRandomlyModify, dataEquals, dataHashCode, getBinarySize, getDimensionality, getMinMaxForEveryCoord, getMinMaxOverCoords, getMinMaxOverCoords, getSize, getVectorData, getVectorDataDimension, getVectorDataItem, getVectorDataItemByte, parseByteHexString, parseByteVector, randomData, toString, writeByteHexString, writeByteVector, writeData
clearSurplusData, clone, clone, create, create, createMetaDistancesHolder, excludeUsingPrecompDist, getDistance, getDistance, getDistance, getDistanceFilter, getDistanceFilter, getDistanceFilter, getDistanceFilter, getDistanceLowerBound, getDistanceLowerBoundImpl, getDistanceStorePrecomputed, getDistanceStorePrecomputed, getDistanceStorePrecomputed, getDistanceUpperBound, getDistanceUpperBoundImpl, getFieldsForNames, getMaxDistance, getNormDistance, getPrecomputedDistance, getPrecomputedDistance, getRandomChar, getRandomNormal, chainDestroy, chainFilter, includeUsingPrecompDist, isDistanceCompatible, parseObjectComment, peekNextChar, readAttributesFromStream, readObjectComments, readObjectCommentsWithoutData, unchainFilter, write, write, writeAttributesToStream, writeObjectComment
clone, getLocatorURI, getNoDataObject, getObjectKey, getObjectKey, getObjectLocatorURI, setObjectKey
public ObjectByteVectorL2(byte[] data)
data
- the data content of the new objectpublic ObjectByteVectorL2(int dimension)
dimension
- number of dimensions to generatepublic ObjectByteVectorL2(java.io.BufferedReader stream) throws java.io.EOFException, java.io.IOException, java.lang.NumberFormatException
stream
- the stream from which to read lines of textjava.io.EOFException
- if the end-of-file of the given stream is reachedjava.io.IOException
- if there was an I/O error during reading from the streamjava.lang.NumberFormatException
- if a line read from the stream does not consist of comma-separated or space-separated numbersprotected ObjectByteVectorL2(BinaryInput input, BinarySerializator serializator) throws java.io.IOException
input
- the buffer to read the MetaObjectSAPIRWeightedDist fromserializator
- the serializator used to write objectsjava.io.IOException
- if there was an I/O error reading from the bufferprotected float getDistanceImpl(LocalAbstractObject obj, float distThreshold)
LocalAbstractObject
LocalAbstractObject.getDistance(messif.objects.LocalAbstractObject)
for full explanation).
The implementation should not increment distanceComputations statistics.getDistanceImpl
in class LocalAbstractObject
obj
- the object to compute distance todistThreshold
- the threshold value on the distance