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- W4293474472 abstract "To support distributed upper-level services such as those in edge or fog computing, a hierarchical and distributed multicloud architecture is introduced to replace the traditional centralized cloud architecture. The intra-time slot demand fluctuation with corresponding multidimensional resource sharing are neglected for efficiency reasons in the existing algorithms. By considering them, the service provider has the potential to obtain better solution, but also makes the scheduling problem a highly complicated stochastic optimization one. To effectively and efficiently solve the problem containing a nonlinear objective and constraints with heterogeneous nonlinear pricing functions, the general stochastic scheduling problem is formulated and its structure is exploited to obtain the base solution quickly, which is further applied with solution closure for fast convergence in the following configurable metaheuristic searching phrase. The experiments with many different problem settings show its superiority over existing algorithms with more than 30% revenue improvement. Therefore, the proposed algorithm can be used as a good supplement to the existing methods. • The demand fluctuation becomes a new challenge for resource scheduling in hierarchical edge clouds with horizontal and vertical sharing. • It is the first work considering the inner-time slot stochasticity in edge clouds with horizontal and vertical resource sharing. • We formulate the general problem in hierarchical and distributed edge clouds to handle stochastic demands. • The problem has non-linear object with non-linear constraints containing thousands of variables in multiple dimensions. • We identify the nested subproblems with their optimal condition, present efficient algorithm by utilizing mathematical formulations of the transformed problem. • The algorithm outperforms the existing mean and heuristic based algorithms." @default.
- W4293474472 created "2022-08-29" @default.
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- W4293474472 date "2023-01-01" @default.
- W4293474472 modified "2023-10-16" @default.
- W4293474472 title "Cost-effective stochastic resource placement in edge clouds with horizontal and vertical sharing" @default.
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- W4293474472 doi "https://doi.org/10.1016/j.future.2022.08.016" @default.
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