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Differentiated Multiple Aggregations in Multidimensional Databases

Hassan, Ali and Ravat, Franck and Teste, Olivier and Tournier, Ronan and Zurfluh, Gilles Differentiated Multiple Aggregations in Multidimensional Databases. (2015) LNCS journal Transactions on Large-Scale Data- and Knowledge-Centered Systems, 21. 20-47. ISSN 1869-1994

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Abstract

Many models have been proposed for modeling multidimensional data warehouse and most consider a same function to determine how measure values are aggregated according to different data detail levels. We provide a conceptual model that supports (1) multiple aggregations, associating to the same measure a different aggregation function according to analysis axes or hierarchies, and (2) differentiated aggregation, allowing specific aggregations at each detail level. Our model is based on a graphical formalism that allows controlling the validity of aggregation functions (distributive, algebraic or holistic). We also show how conceptual modeling can be used, in an R-OLAP environment, for building lattices of pre-computed aggregates.

Item Type:Article
Additional Information:Thanks to Springer editor. The original PDF of the article can be found at LNCS journal Transactions on Large-Scale Data- and Knowledge-Centered Systems website : http://tldks.faw.at/ The definitive version is available at: http://tldks.faw.at/paper/135/ The original PDF of the article can also be found in volume 9260 (2015) of the series Lecture Notes in Computer Science pp 20-47 http://link.springer.com/chapter/10.1007%2F978-3-642-32584-7_8
HAL Id:hal-01334717
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
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Deposited By: IRIT IRIT
Deposited On:03 Jun 2016 14:18

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