Evacuation Path Planning Based on the Hybrid Improved Sparrow Search Optimization Algorithm

In the face of fire in buildings, people need to quickly plan their escape routes. Intelligent optimization algorithms can achieve this goal, including the sparrow search algorithm (SSA). Despite the powerful search ability of the SSA, there are still some areas that need improvements. Aiming at the...

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Vydané v:	Fire (Basel, Switzerland) Ročník 6; číslo 10; s. 380
Hlavní autori:	Wei, Xiaoge, Zhang, Yuming, Zhao, Yinlong
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Basel MDPI AG 01.10.2023
Predmet:	Adaptive algorithms adaptive perturbation Algorithms chaotic mapping equations Evacuation Evacuation of civilians evacuation path planning Evacuation routing Food Foraging behavior hybrids Intelligence levy Logistics Machine learning Markov chain Mathematical optimization Methods Normal distribution Objective function Optimization Optimization algorithms Passeriformes Path planning Planning Search algorithms Simulation Smoothness SSA Unmanned aerial vehicles China
ISSN:	2571-6255, 2571-6255
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Abstract	In the face of fire in buildings, people need to quickly plan their escape routes. Intelligent optimization algorithms can achieve this goal, including the sparrow search algorithm (SSA). Despite the powerful search ability of the SSA, there are still some areas that need improvements. Aiming at the problem that the sparrow search algorithm reduces population diversity and is easy to fall into local optimum when solving the optimal solution of the objective function, a hybrid improved sparrow search algorithm is proposed. First, logistic-tent mapping is used to initialize the population and enhance diversity in the population. Also, an adaptive period factor is introduced into the producer’s update position equation. Then, the Lévy flight is introduced to the position of the participant to improve the optimization ability of the algorithm. Finally, the adaptive disturbance strategy is adopted for excellent individuals to strengthen the ability of the algorithm to jump out of the local optimum in the later stage. In order to prove the improvement of the optimization ability of the improved algorithm, the improved sparrow algorithm is applied to five kinds of maps for evacuation path planning and compared with the simulation results of other intelligent algorithms. The ultimate simulation results show that the optimization algorithm proposed in this paper has better performance in path length, path smoothness, and algorithm convergence, showing better optimization performance.
AbstractList	In the face of fire in buildings, people need to quickly plan their escape routes. Intelligent optimization algorithms can achieve this goal, including the sparrow search algorithm (SSA). Despite the powerful search ability of the SSA, there are still some areas that need improvements. Aiming at the problem that the sparrow search algorithm reduces population diversity and is easy to fall into local optimum when solving the optimal solution of the objective function, a hybrid improved sparrow search algorithm is proposed. First, logistic-tent mapping is used to initialize the population and enhance diversity in the population. Also, an adaptive period factor is introduced into the producer’s update position equation. Then, the Lévy flight is introduced to the position of the participant to improve the optimization ability of the algorithm. Finally, the adaptive disturbance strategy is adopted for excellent individuals to strengthen the ability of the algorithm to jump out of the local optimum in the later stage. In order to prove the improvement of the optimization ability of the improved algorithm, the improved sparrow algorithm is applied to five kinds of maps for evacuation path planning and compared with the simulation results of other intelligent algorithms. The ultimate simulation results show that the optimization algorithm proposed in this paper has better performance in path length, path smoothness, and algorithm convergence, showing better optimization performance.
Audience	Academic
Author	Zhang, Yuming Wei, Xiaoge Zhao, Yinlong
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SubjectTerms	Adaptive algorithms adaptive perturbation Algorithms chaotic mapping equations Evacuation Evacuation of civilians evacuation path planning Evacuation routing Food Foraging behavior hybrids Intelligence levy Logistics Machine learning Markov chain Mathematical optimization Methods Normal distribution Objective function Optimization Optimization algorithms Passeriformes Path planning Planning Search algorithms Simulation Smoothness SSA Unmanned aerial vehicles
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Title	Evacuation Path Planning Based on the Hybrid Improved Sparrow Search Optimization Algorithm
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