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Evolutionary Multitasking With Dynamic Resource Allocating Strategy
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DOI：10.1109/TEVC.2019.2893614.png)
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摘要
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Evolutionary multitasking is a recently proposed paradigm to simultaneously solve multiple tasks using a single population. Most of the existing evolutionary multitasking algorithms treat all tasks equally and then assign the same amount of resources to each task. However, when the resources are limited, it is difficult for some tasks to converge to acceptable solutions. This paper aims at investigating the resource allocation in the multitasking environment to efficiently utilize the restrictive resources. In this paper, we design a novel multitask evolutionary algorithm with an online dynamic resource allocation strategy. Specifically, the proposed dynamic resource allocation strategy allocates resources to each task adaptively according to the requirements of tasks. We also design an adaptive method to control the resources invested into cross-domain searching. The proposed algorithm is able to allocate the computational resources dynamically according to the computational complexities of tasks. The experimental results demonstrate the superiority of the proposed method in comparison with the state-of-the-art algorithms on benchmark problems of multitask optimization.
Keyword:
Task analysis
Resource management
Multitasking
Optimization
Heuristic algorithms
Dynamic scheduling
Sociology
Dynamic resource allocation
evolutionary multitasking
multifactorial optimization (MFO)
multitask optimization (MTO)
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