Computer method, apparatus and programmed medium for more efficient database management using histograms with a bounded error selectivity estimation

Computer method, apparatus and programmed medium for more efficient database management using histograms with a bounded error selectivity estimation

A computer method, apparatus and programmed medium for optimizing the number of buckets, and thus minimizing the necessary amount of memory space, needed to construct a histogram of a data distribution contained within a computer database with a cumulative error bounded by a specified threshold. The...

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Hauptverfasser: POOSALA, VISWANATH, MUTHUKRISHNAN, SHANMUGAVELAYUT, SUEL, TORSTEN
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator POOSALA
VISWANATH
MUTHUKRISHNAN
SHANMUGAVELAYUT
SUEL
TORSTEN
description A computer method, apparatus and programmed medium for optimizing the number of buckets, and thus minimizing the necessary amount of memory space, needed to construct a histogram of a data distribution contained within a computer database with a cumulative error bounded by a specified threshold. The method according to the present invention allows a user to determine the near-minimal memory space necessary to store an approximation of a database with a maximum error measure at most three times that specified by the user to allow the user to maximize computer resources.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Computer method, apparatus and programmed medium for more efficient database management using histograms with a bounded error selectivity estimation
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