By Aidong Zhang, Avi Silberschatz, Sharad Mehrotra
Continuous Media Databases brings jointly in a single position very important contributions and up to date study ends up in this fast paced sector.
Continuous Media Databases serves as an exceptional reference, offering perception into probably the most hard learn concerns within the field.
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Extra info for Continuous Media Databases
As in , and (b) on which node to keep each copy, which should be done in such a manner as to spread the (anticipated) load as evenly as possible among the nodes (adjustments to load imbalance can be made during system operation as in [11D. Inappropriate choices in resolving these issues can lead to poor resource utilization. In order to achieve better resource utilization characteristics, the number of replicas of each object should change over time, as the object access patterns change. , as in .
From September 1991 till August 1996 he was an Assistant Professor at the School of Computing Science at Simon Fraser University, Vancouver, Canada. From September 1994 till January 1996 he was on a leave of absence at the Technical University of Crete, Greece. Since January 1996, he has been with the Department of Electronic and Computer Engineering at the Technical University of Crete, Greece. Currently, Prof. Triantafillou's research focuses in the area of highperformance, intelligent storage systems, including disk drives, disk arrays, and robotic tape/disk libraries, with a special emphasis on multimedia applications.
The skewness in the movie popularity is high. In such situations, the policies that are able to replicate movies faster, for instance, the injected & piggybacked parallel replication, performed better and resulted in higher acceptance rates. Figure 15 illustrates the effect of varying the replication threshold limit, h. When the threshold limit is too low, the responsiveness of the replication algorithm decreases and leads to lower acceptance rates. However, for policies which exhibit high replication time, the acceptance rate is fairly insensitive to the parameter h since the long replication time masks the algorithm's responsiveness to h.