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Created in the 90s of the past century methods of constructing algorithms (metaheuristic), inspired by the no free lunch theorem of Wolpert and Macready, using specific properties of problems, do not meet present expectations of practitioners. Commonly used artificial intelligence algorithms in recent years have also proved to be ineffective in solving a large group of extremely difficult instances...
This article presents a proposal of solution for the problem of optimal task allocation and scheduling for computing cluster with multiple nodes. The above issue is considered as Two-Dimensional Packing Problem. We present the two level algorithm where Tabu Search is used to minimize relatively low accuracy of greedy packing strategy. The paper contains the results of computational experiments on...
The paper deals with a complex transportation problem with an immediate practical application. A deterministic model is considered. The vehicle has to perform a route through the city to fulfil set of delivery demands having defined time windows to make service. We would like to find the route with minimal cost measured by weighted sum of earliness/tardiness penalties caused by violation of determined...
The paper proposes an algorithm for parallel packing procedure for three-dimensional packing problem. In the considered variant of the problem the load of the biggest capacity is placed inside the container with permanent dimensions. In order to parallelize computations there was CUDA technology used which enables running of independent computing threads with the use of graphic card cores. The obtained...
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