论文标题
通过使用蜂窝进化多任务处理,关于车辆路由问题之间知识的可转移性
On the Transferability of Knowledge among Vehicle Routing Problems by using Cellular Evolutionary Multitasking
论文作者
论文摘要
多任务优化是最近引入的范式,重点是同时求解多个优化问题实例(任务)。多任务环境的目的是动态利用任务之间现有的互补性和协同作用,通过转移遗传材料相互帮助。更具体地说,使用从进化计算继承的概念来解决多任务方案的进化多任务(EM)。诸如众所周知的多因素进化算法(MFEA)之类的EM方法最近在面对多个优化问题时获得了显着的研究势头。这项工作的重点是将最近提出的多因素细胞遗传算法(MFCGA)应用于众所周知的电容车辆路由问题(CVRP)。总体而言,使用12个数据集构建了11个不同的多任务设置。这项研究的贡献是双重的。一方面,这是MFCGA在车辆路由问题问题上的第一次应用。另一方面,同样有趣的是第二个贡献,该贡献的重点是对问题实例之间阳性遗传转移性的定量分析。为此,我们提供了不同优化任务之间产生的协同作用的经验证明。
Multitasking optimization is a recently introduced paradigm, focused on the simultaneous solving of multiple optimization problem instances (tasks). The goal of multitasking environments is to dynamically exploit existing complementarities and synergies among tasks, helping each other through the transfer of genetic material. More concretely, Evolutionary Multitasking (EM) regards to the resolution of multitasking scenarios using concepts inherited from Evolutionary Computation. EM approaches such as the well-known Multifactorial Evolutionary Algorithm (MFEA) are lately gaining a notable research momentum when facing with multiple optimization problems. This work is focused on the application of the recently proposed Multifactorial Cellular Genetic Algorithm (MFCGA) to the well-known Capacitated Vehicle Routing Problem (CVRP). In overall, 11 different multitasking setups have been built using 12 datasets. The contribution of this research is twofold. On the one hand, it is the first application of the MFCGA to the Vehicle Routing Problem family of problems. On the other hand, equally interesting is the second contribution, which is focused on the quantitative analysis of the positive genetic transferability among the problem instances. To do that, we provide an empirical demonstration of the synergies arisen between the different optimization tasks.