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PARMODS: A Parallel Framework for MODS Metaheuristics

机译:PARMODS:MODS元启发式的并行框架

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In this paper, we propose a novel framework for the parallel solution of?combinatorial problems based on MODS theory (PARMODS) This framework makes?use of metaheuristics based on the Deterministic Swapping (MODS) theory. These approaches?represents the feasible solution space of any combinatorial problem through?a Deterministic Finite Automata. Some of those methods are the Metaheuristic Of?Deterministic Swapping (MODS), the Simulated Annealing Deterministic Swapping?(SAMODS), the Simulated Annealing Genetic Swapping (SAGAMODS) and the Evolutionary?Deterministic Swapping (EMODS) Those approaches have been utilized in?different contexts such as data base optimization, operational research [1–3, 8] and?multi-objective optimization. The main idea of this framework is to exploit parallel?computation in order to obtain a general view of the feasible solution space of ?any?combinatorial optimization problem. This is, all the MODS methods are used in a?unique general optimization process. In parallel, each instance of MODS explores a?different region of the solution space. This allows us to explore distant regions of?the feasible solution which could not be explored making use of classical (sequential)?MODS implementations. Some experiments are performed making use of well-known?TSP instances. Partial results shows that PARMODS provides better solutions than?sequential MODS based implementations.
机译:在本文中,我们提出了一种基于MODS理论(PARMODS)的并行解决组合问题的新框架。该框架利用了基于确定性交换(MODS)理论的元启发式方法。这些方法通过确定性有限自动机代表了任何组合问题的可行解空间。这些方法中的一些是元确定性交换(MODS),模拟退火确定性交换(SAMODS),模拟退火遗传交换(SAGAMODS)和进化确定性交换(EMODS)的那些方法。数据库优化,运筹学[1-3、8]和多目标优化等环境。该框架的主要思想是利用并行计算以获得对任何组合优化问题的可行解空间的总体看法。也就是说,所有MODS方法都用于唯一的常规优化过程中。并行地,每个MODS实例都探索解决方案空间的不同区域。这使我们能够探索可行解决方案的遥远区域,而传统的(顺序的)MODS实现则无法探索这种可行的解决方案。利用众所周知的?TSP实例进行了一些实验。部分结果表明,与基于顺序MODS的实现相比,PARMODS提供了更好的解决方案。

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