OPTIMIZATION OF DISTRIBUTED OLAP CUBES WITH AN ADAPTIVE SIMULATED ANNEALING ALGORITHM

Jorge Loureiro, Orlando Belo

2007

Abstract

The materialization of multidimensional structures is a sine qua non condition of performance for OLAP systems. Several proposals have addressed the problem of selecting the optimal set of aggregations for the centralized OLAP approach. But the OLAP structures may also be distributed to capture the known advantages of distributed databases. However, this approach introduces another term into the optimizing equation: space, which generates new inter-node subcubes’ dependencies. The problem to solve is the selection of the most appropriate cubes, but also its correct allocation. The optimizing heuristics face now with extra complexity, hardening its searching for solutions. To address this extended problem, this paper proposes a simulated annealing heuristic, which includes an adaptive mechanism, concerning the size of each move of the hill climber. The results of the experimental simulation show that this algorithm is a good solution for this kind of problem, especially when it comes to its remarkable scalability.

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Paper Citation


in Harvard Style

Loureiro J. and Belo O. (2007). OPTIMIZATION OF DISTRIBUTED OLAP CUBES WITH AN ADAPTIVE SIMULATED ANNEALING ALGORITHM . In Proceedings of the Second International Conference on Software and Data Technologies - Volume 3: ICSOFT, ISBN 978-989-8111-07-4, pages 21-28. DOI: 10.5220/0001342800210028


in Bibtex Style

@conference{icsoft07,
author={Jorge Loureiro and Orlando Belo},
title={OPTIMIZATION OF DISTRIBUTED OLAP CUBES WITH AN ADAPTIVE SIMULATED ANNEALING ALGORITHM},
booktitle={Proceedings of the Second International Conference on Software and Data Technologies - Volume 3: ICSOFT,},
year={2007},
pages={21-28},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001342800210028},
isbn={978-989-8111-07-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Software and Data Technologies - Volume 3: ICSOFT,
TI - OPTIMIZATION OF DISTRIBUTED OLAP CUBES WITH AN ADAPTIVE SIMULATED ANNEALING ALGORITHM
SN - 978-989-8111-07-4
AU - Loureiro J.
AU - Belo O.
PY - 2007
SP - 21
EP - 28
DO - 10.5220/0001342800210028