Analyse multigraduelle OLAP

Gilles Hubert (1) , Olivier Teste (1, 2)

1 IRIT-SIG - Systèmes d’Informations Généralisées
2 UT2J - Université Toulouse - Jean Jaurès

Decisional systems are based on multidimensional databases improving OLAP analyses. The paper describes a new OLAP operator named « BLEND » to perform multigradual analyses. The operation transforms multidimensional structures during querying in order to analyse measures according to various granularity levels, which are reorganised into a single parameter. We study valid combinations of the operation in the context of strict hierarchies. First experimentations implement the operation in an R-OLAP framework showing the slight cost of this operation.

Mots clés: Bases de données multidimensionnelles; Algèbre OLAP; Opérateur Blend

Domaines: Base de données [cs.DB]

Gilles Hubert, Olivier Teste. Analyse multigraduelle OLAP. Revue des Nouvelles Technologies de l'Information, 2009, E-15, pp.253-258. ⟨hal-00479517⟩