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Soft sets based symbiotic organisms search algorithm for resource discovery in cloud computing environment
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DOI：10.1016/j.future.2017.05.024.png)
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The dynamicity, coupled with the uncertainty that occurs between advertised resources and users' resource requirement queries, remains significant problems that hamper the discovery of candidate resources in a cloud computing environment. Network size and complexity continue to increase dynamically which makes resource dikovery a complex, NP-hard problem that requires efficient algorithms for optimum resource discovery. Several algorithms have been proposed in literature but there is still room for more efficient algorithms especially as the size of the resources increases. This paper proposes a soft-set symbiotic organisms search (SSSOS) algorithm, a new hybrid resource discovery solution. Soft set theory has been proved efficient for tackling uncertainty problems that arises in static systems while symbiotic organisms search (SOS) has shown strength for tackling dynamic relationships that occur in dynamic environments in search of optimal solutions among objects. The SSSOS algorithm innovatively combines the strengths of the underlying techniques to provide efficient management of tasks that need to be accomplished during resource discovery in the cloud. The effectiveness and efficiency of the proposed hybrid algorithm is demonstrated through empirical simulation study and benchmarking against recent techniques in literature. Results obtained reveal the promising potential of the proposed SSSOS algorithm for resource discovery in a cloud environment. (C) 2017 Elsevier B.V. All rights reserved.
Keyword:
Soft set
Resource discovery
Resource matching
Resource selection
Symbiotic organisms search
VMs resources
VMs information system
Cloud computing
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