Evolutionary Multitask Optimization: a Methodological Overview, Challenges, and Future Research Directions: a Methodological Overview, Challenges, and Future Research Directions
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2022-04-12
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Abstract
In this work, we consider multitasking in the context of solving multiple optimization problems simultaneously by conducting a single search process. The principal goal when dealing with this scenario is to dynamically exploit the existing complementarities among the problems (tasks) being optimized, helping each other through the exchange of valuable knowledge. Additionally, the emerging paradigm of evolutionary multitasking tackles multitask optimization scenarios by using biologically inspired concepts drawn from swarm intelligence and evolutionary computation. The main purpose of this survey is to collect, organize, and critically examine the abundant literature published so far in evolutionary multitasking, with an emphasis on the methodological patterns followed when designing new algorithmic proposals in this area (namely, multifactorial optimization and multipopulation-based multitasking). We complement our critical analysis with an identification of challenges that remain open to date, along with promising research directions that can leverage the potential of biologically inspired algorithms for multitask optimization. Our discussions held throughout this manuscript are offered to the audience as a reference of the general trajectory followed by the community working in this field in recent times, as well as a self-contained entry point for newcomers and researchers interested to join this exciting research avenue.
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Publisher Copyright: © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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Transfer optimization , Multitasking optimization , Evolutionary multitasking , Multifactorial evolutionary algorithm , Multi-population multitasking , Transfer optimization , Multitasking optimization , Evolutionary multitasking , Multifactorial evolutionary algorithm , Multi-population multitasking , Computer Vision and Pattern Recognition , Computer Science Applications , Cognitive Neuroscience , Funding Info , The authors would like to thank the Basque Government for its funding support through the ELKARTEK program (3KIA project, KK-2020/00049) and the consolidated research group MATHMODE (ref. T1294-19). , The authors would like to thank the Basque Government for its funding support through the ELKARTEK program (3KIA project, KK-2020/00049) and the consolidated research group MATHMODE (ref. T1294-19).
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Osaba , E , Del Ser , J , Martinez , A D & Hussain , A 2022 , ' Evolutionary Multitask Optimization: a Methodological Overview, Challenges, and Future Research Directions : a Methodological Overview, Challenges, and Future Research Directions ' , Cognitive Computation , vol. 14 , no. 3 , pp. 927-954 . https://doi.org/10.1007/s12559-022-10012-8