pitt.search.semanticvectors
Class VectorStoreSparseRAM

java.lang.Object
  pitt.search.semanticvectors.VectorStoreSparseRAM

All Implemented Interfaces:

VectorStore

public class VectorStoreSparseRAM
extends java.lang.Object
implements VectorStore

This class provides methods for reading a VectorStore into memory as an optimization if batching many searches.

The serialization currently presumes that the object (in the ObjectVectors) should be serialized as a String.

The class is constructed by creating a VectorStoreReader class, iterating through vectors and reading them into memory.

See Also:

VectorStoreReaderLucene, ObjectVector

Nested Class Summary

class

VectorStoreSparseRAM.SparseVectorEnumeration Implements the hasMoreElements() and nextElement() methods to give Enumeration interface from sparse vector store.

Constructor Summary

VectorStoreSparseRAM()

Method Summary

void	CreateRandomVectors(int numVectors, int seedLength)
java.util.Enumeration<ObjectVector>	getAllVectors()
java.util.Enumeration	getKeys()
int	getNumVectors()
short[]	getSparseVector(java.lang.Object desiredObject) Returns the sparse vector without going through the float[] interface.
float[]	getVector(java.lang.Object desiredObject) Given an object, get its corresponding vector This implementation only works for string objects so far
void	putVector(java.lang.String key, short[] sparseVector)

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorStoreSparseRAM

public VectorStoreSparseRAM()

Method Detail

getKeys

public java.util.Enumeration getKeys()

CreateRandomVectors

public void CreateRandomVectors(int numVectors,
                                int seedLength)

putVector

public void putVector(java.lang.String key,
                      short[] sparseVector)

getVector

public float[] getVector(java.lang.Object desiredObject)

Given an object, get its corresponding vector
This implementation only works for string objects so far

Specified by:

getVector in interface VectorStore

Parameters:

desiredObject - - the string you're searching for

Returns:

vector from the VectorStore, or null if not found.

getSparseVector

public short[] getSparseVector(java.lang.Object desiredObject)

Returns the sparse vector without going through the float[] interface.

getNumVectors

public int getNumVectors()

Specified by:

getNumVectors in interface VectorStore

Returns:

a count of the number of vectors in the store.

getAllVectors

public java.util.Enumeration<ObjectVector> getAllVectors()

Specified by:

getAllVectors in interface VectorStore

Returns:

an enumeration of all the object vectors in the store.