We consider a generalization of the standard cache problem called file-bundle caching, where different queries (tasks), each containing l ≥ 1 files, sequentially arrive. An online algorithm that does not know sequence ahead time must adaptively decide on what files to keep in incur minimum number misses. Here miss refers case at least one file query is missing among files. In special = 1, this ...

| C h a p t e r 3 | P a g e Abstract System response times influence the satisfaction of users interacting with a system. Research shows that increasing response times lead to increasing dissatisfaction or complete refusal of using the system. System analyses show that enforcing access control requirements significantly influence the system's performance experienced by end users. With increasin...

This paper focuses on similarity caching systems, in which a user request for an object $o$ that is not the cache can be (partially) satisfied by similar stored notation="LaTeX">$o'$ , at cost of loss utility. Similarity systems effec...

SRC kinases and PKR are intracellular protein kinases, which play key roles in intracellular viral replication. In this research, the effect of SRC kinase inhibition and PKR activation and inhibition on replication of coxsakievirus (CVB3), an entrovirus of the family picornaviridae – causative agents of fatal myocarditis, was studied. Vero and Hela cells were cultured and infected with CVB3 in ...

Data Grids provide geographically distributed resources for large-scale data-intensive applications that generate large data sets. However, ensuring efficient access to such huge and widely distributed data is hindered by the high latencies of the Internet. We address these challenges by employing intelligent replication and caching of objects at strategic locations. In our approach, replicatio...

Web caches are installed to reduce the receivers’ latency and save network bandwidth. These caches need to cooperate in order to improve their performance. A popular technique to make caches cooperate is by setting up a caching hierarchy. However, there are several problems associated with a caching hierarchy: i) every hierarchy level introduces additional delay, ii) redundant document copies a...

Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of data values are allowed to become out of date. Queries over cached data return an answer quickly, but the stale answer may be unboundedly imprecise. Alternatively, queries over remote master data return a precise answe...