Istituto di Scienza e Tecnologie dell'Informazione     
Chohra A., Di Giandomenico F., Porcarelli S., Bondavalli A. Towards optimal database maintenance in wireless communication systems. In: World Multiconference on Systemics, Cybernetics and Informatics - Information Systems Development (Orlando, Florida, USA, July 22-25 2001). Proceedings, vol. Proceedings, v.1 pp. 571 - 576. Nagib Callaos, Ivan Nunes da Silva and Jorge Molero (eds.). 2001.
To ensure the consistency of database subsystems involved in wireless communication systems, appropriate schedule maintenance policies are necessary. However, the short persistence of most of the data stored in the database and the highly dynamic evolution of the environmental conditions, which characterize such target systems, pose relevant issues in devising efficient maintenance policies. Aiming at deriving optimal maintenance strategies, this paper tackles the problem in two steps. Firtst a method is outlined to identify the most rewarding choice of audits frequency and combinations, given a setting for relevant parameters involved in the database of wireless communication systems. Second, a learning approach id presented to dynamically adapt the maintenance policy at varying database and environmental parameter values leading to select, in each time period, the optimal maintenance policy.
Subject Maintenance
Petri net
Database audit
Wireless communication systems
C.4 Performance of Systems

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