Article (Scientific journals)
COMPLÉMENTARITÉ DES MODÈLES VECTEUR ET RASTER DANS LES CUBES DE DONNÉES SPATIAUX DESTINÉS À L'ANALYSE DE RISQUE. APPLICATION POUR LES SERVICES D'URGENCE BRUXELLOIS
Kasprzyk, Jean-Paul; Poncelet, Nadia
2022In BSGLg, 78 (1), p. 157 - 172
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Keywords :
(S)OLAP; emergency services; GIS; metamodel; risk analysis; Geography, Planning and Development; Earth and Planetary Sciences (all)
Abstract :
[en] A Business Intelligence (BI) tool has been developed in order to facilitate the analysis of territorial risks for the Brussels emergency services. Our hypothesis is that a hybrid SOLAP combining raster and vector data cubes can improve the analysis of the spatial distribution of recurrent risks, by allowing the comparison between risk density maps built using Kernel Density Estimation (KDE) and risk density maps based on absolute numbers of interventions per geographic vector entity. We use here a unique metamodel for the instantiation of the cube models, the management of SOLAP operations (filters, drillings) and the navigation in a hybrid raster/vector constellation. We propose a decomposition of the raster cubes into cuboids in order to guarantee fast drilling operations for the user. Another originality of this SOLAP tool is the possibility to integrate a geographic dimension level that evolves according to the positioning of the rescue stations simulated by the user while taking into account the speed constraints of the Brussels road network.
Research center :
SPHERES - ULiège
Disciplines :
Computer science
Author, co-author :
Kasprzyk, Jean-Paul  ;  Université de Liège - ULiège > Département de géographie > Unité de Géomatique - Topographie et géométrologie
Poncelet, Nadia;  Nadia PONCELET, CIRB-CIBG, SIAMU-DBDMH, Bruxelles, Belgium
Language :
French
Title :
COMPLÉMENTARITÉ DES MODÈLES VECTEUR ET RASTER DANS LES CUBES DE DONNÉES SPATIAUX DESTINÉS À L'ANALYSE DE RISQUE. APPLICATION POUR LES SERVICES D'URGENCE BRUXELLOIS
Alternative titles :
[en] COMPLEMENTARITY OF VECTOR AND RASTER MODELS IN SPATIAL DATA CUBES FOR RISK ANALYSIS. APPLICATION FOR THE BRUSSELS EMERGENCY SERVICES
Publication date :
2022
Journal title :
BSGLg
ISSN :
0770-7576
eISSN :
2507-0711
Publisher :
Societe Geographique de Liege
Special issue title :
De la géomorphologie à la géomatique, hommage à Marc BINARD et Yves CORNET
Volume :
78
Issue :
1
Pages :
157 - 172
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 September 2022

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