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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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STUDIA INFORMATICA - Ediţia nr.2 din 2007 | |||||||
Articol: |
INDEXING THE EVOLUTION OF MOVING OBJECTS WITHIN A 2D SPACE USING THE BRICKR STRUCTURES. Autori: ANDREEA SABĂU. |
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Rezumat: A growing number of applications manage mobile objects. The storage and the organization within databases of data describing the evolution of these objects is an open challenge. Data must be managed in ecient structures with respect to both the storage space consumed and the data access through these structures. An indexing method that organizes the evolutions of spatial objects within a 2D space is proposed in this paper. The Dynamic-BrickR access method uses two structures: an underlying permanent R*-Tree structure, and an in-memory dynamic space grid structure, that it used for building the terminal nodes to feed the R*-Tree. Experiments show signicant improvements of the Dynamic- BrickR method over the R*-Tree index, regarding the dead space and the overlapping volumes. The Dynamic-BrickR inherits from the R*-Tree the capability to be used in answering spatial, temporal and spatio-temporal queries. | |||||||
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