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Databases2
Indexing2
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Information Systems2
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Gudes, Ehud1
Manolopoulos, Yannis1
Vassilakopoulos, Michael1
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A Uniform Indexing Scheme for Object-Oriented Databases.
Peer reviewed Peer reviewed
Gudes, Ehud – Information Systems, 1997
Performance is a critical factor hindering the use of object-oriented databases (OODB). This article proposes a new and uniform indexing scheme for enhancing OODBs with advantages for small range, clustered sets queries. Reviews several other indexing schemes; presents the U-index scheme; discusses its performance; and presents experimental…
Descriptors: Computer Software Development, Computer Software Reviews, Databases, Indexing
Dynamic Inverted Quadtree: A Structure for Pictorial Databases.
Peer reviewed Peer reviewed
Vassilakopoulos, Michael; Manolopoulos, Yannis – Information Systems, 1995
Presents an improved inverted region quadtree variation called Dynamic Inverted Quadtree that is able to support and index a pictorial database. Pattern-searching algorithms are described, and the space needs of Fully Inverted and Dynamic Inverted Quadtrees are analytically compared based on a model of image randomness expressed as a branching…
Descriptors: Algorithms, Branching, Comparative Analysis, Computer System Design