Opposition-Based Multi-Tiered Grey Wolf Optimizer for Stochastic Global Optimization Paradigms

Opposition-Based Multi-Tiered Grey Wolf Optimizer for Stochastic Global Optimization Paradigms

Vasudha Bahl, Anoop Bhola
Copyright: © 2022 |Pages: 26
DOI: 10.4018/ijeoe.295982
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Abstract

Researchers are increasingly using algorithms that are influenced by nature because of its ease and versatility, the key components of nature-inspired metaheuristic algorithms are investigated, involving divergence and adoption, investigation and utilization, and dissemination techniques. Grey Wolf Optimizer (GWO), a relatively recent algorithm influenced by the dominance structure and poaching deportment of grey wolves, is a very popular technique for solving realistic mechanical and optical technical challenges. Half of the recurrence in the GWO are committed to the exploration and the other half to exploitation, ignoring the importance of maintaining the correct equilibrium to ensure a precise estimate of the global optimum. To address this flaw, a Multi-tiered GWO (MGWO) is formulated, that further accomplishes an appropriate equivalence among exploration and exploitation, resulting in optimal algorithm efficiency. In comparison to familiar optimization methods, simulations relying on benchmark functions exhibit the efficacy, performance, and stabilization of MGWO.
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Introduction

Meta-heuristic optimal techniques are becoming extremely prevalent in practical execution because they implement on basic concepts for easy execution, don’t need gradient knowledge, could be employed on numerous problems spanning various fields (Shayanfar & Gharehchopogh,2018; Gharehchopogh & Gholizadeh, 2019; Gharehchopogh et al., 2019; Abedi & Gharehchopogh, 2020; Majidpour & Gharehchopogh, 2018). Meta-heuristic algorithms have shown to be effective in understanding several stochastic and multimodal actual optimal problems. Chaotic and local hunt are also used in all Meta-heuristic implementations and for global optimum meta-heuristic algorithms may be useful (Khalandi & Gharehchopogh, 2018; Allahverdipour & Gharehchopogh, 2018).

Due to the ever-increasing complication of actual issues in engineering and technology, Global Optimization (GO) has evolved as indispensable for utmost optimization. The GO contains a large number of difficult multimodal optimization problems for which most conventional optimization lag or have unattainable investigations. Swarm Intelligence (SI) implementations are among the most efficient and effective GO approaches. SI algorithms are computation frameworks that were created by mimicking natural seeking behavior patterns and are used to solve multi - objective optimization issues.

Populace dependent metaheuristic optimization is among the most robust strategies to overcome continuous and combinatorial optimization issues. Numerous real-time problems, on the other hand, are frequently framed as multi objective challenges with constrained resources (Sumpunsri et al., 2021). Two challenges arise when deploying nature-inspired methods to address Mining Algorithm with statistical properties: appropriately minimizing the ranges of the upper and lower limits of attributes, and effectively designing the assessment function. suggests utilizing a shrinking coefficient to minimize the interval of characteristics, while the assessment function is specified as a weighted average of support, reliability, participation, and shrinking coefficient (Fister et al., 2021).

GWO (Mirjalili et al., 2014) a competent and new onset meta-heuristic progressive optimization technique depend on the dominance and targeting behavior of grey wolves. Grey wolves (Canis Lupus), which belong to the Canidae folks, influenced the GWO procedure. Gray wolves live in clusters, with a batch size ranging from 5 to 12. The leader is known as alpha and is qualified to make decisions such as hunting, sleeping, and so on. The latter is known as beta, and it supports the alpha in making decisions. The alpha wolf should be appreciated by the beta wolf. Omega is the weakest grey wolf in terms of level, and it sends data to other wolves in the region. The rest of the grey wolves have given their names delta. Exploration and exploitation are two key divisions of metaheuristic approaches (Miandoab & Gharehchopogh, 2017). Exploration ensures that the algorithm reaches distinct suitable regions in the problem space, while exploitation ensures that global optimum is found in the specific area (Gharehchopogh et al., 2015). The usefulness and optimum results obtained metaheuristics in developing skew complex laminates in active workable situations is investigated in depth (Kalita, et al., 2021). In diverse-scale architecture, a conceptual regression performed via Genetic Programming (GP) paired with D-optimal layout is offered as an alternative theoretic foundation model for optimal algorithm (Kalita, Mukhopadhyay, et al., 2020). In (Kalita, Dey, et al., 2020) By integrating the high-accuracy of the structural analysis approach with the continuous enhancement potential of evolutionary methods, a high-precision structural optimal control model is established. The (Kalita, et al., 2018) study looks upon genetically optimized skew laminates, which have had their impact strength changed to enhance their elementary recurrence using an effective optimizer.

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