Materialized view maintenance in peer data management systems

Authors:
Biao Qin;Shan Wang;Xiaoyong Du
Affiliations:
School of Information, Remin University of China, Beijing, P.R. China;School of Information, Remin University of China, Beijing, P.R. China;School of Information, Remin University of China, Beijing, P.R. China
Venue:
APWeb'06 Proceedings of the 8th Asia-Pacific Web conference on Frontiers of WWW Research and Development
Year:
2006

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Abstract

The problem of sharing data in peer data management systems (PDMSs) has received considerable attention in recent years. However, update management in PDMSs has received very little attention. This paper proposes a strategy to maintain views in our SPDMS. Based on applications, this paper extends the definition of view and proposes the peer view, local view and global view. So the maintenance of a global view is became the maintenance of all related local views if join operations are confined in each local PDMS. Furthermore, this paper proposes an ECA rule for definition consistency maintenance and a push-based strategy for date consistency maintenance. Finally, we do extensive simulation experiments in our SPDMS. The simulation results show the proposed strategy has better performance than that of Mork’s.