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Novel Sea Otter Optimization Algorithm for WSN Coverage Intelligence Optimization 认领 引用 被引量:2
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作者 WU Jin GAO Yaqiong +2 位作者 SU Zhengdong CHONG Gege XIONG Hao 《Journal of Shanghai Jiaotong university(Science)》 EI 2026年第4期828-842,I0002,共15页
A novel intelligent optimization algorithm inspired by nature,called sea otter optimization algorithm(SOOA),is proposed.The SOOA simulates the natural behaviors of sea otters,such as using tactile senses to search for... A novel intelligent optimization algorithm inspired by nature,called sea otter optimization algorithm(SOOA),is proposed.The SOOA simulates the natural behaviors of sea otters,such as using tactile senses to search for food in seawater,grooming their fur,feeding with the aid of stones,and escaping from danger.In the exploration stage,a wetness factor is introduced to control the behavior of sea otters in foraging and grooming;a danger factor is introduced to control the behavior of sea otters in feeding and avoiding dangers in the exploitation stage,and the behaviors of sea otters in responding to different dangers are mathematically modeled.The proposed algorithm is compared with 9 well-known intelligent optimization algorithms,and evaluated in 13 benchmark functions as well as wireless sensor network coverage optimization problems to verify the effectiveness of the proposed algorithm.The experimental results show that the node coverage after SOOA optimization reaches 91.2%in 2D environment and 90.47%in 3D environment.Compared with other algorithms,SOOA is superior and possesses the ability to solve complex optimization problems. 展开更多
关键词 sea otter optimization algorithm(SOOA) swarm intelligence optimization wireless sensor network coverage optimization
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基于CoatiOA-VMD-WT的光电容积脉搏波去噪方法 认领 引用
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作者 张宝林 易钢 汤鑫 《电子技术应用》 2025年第5期55-61,共7页
在采集光电容积脉搏波信号(PPG)时,特别容易受到环境和采集对象所带来的噪声影响,导致采取的信号与真实值差距过大。针对这一问题,提出了一种PPG信号的去噪方式,给出一种长鼻浣熊优化算法,利用通过最小包络熵作为评判标准,取确定变分模... 在采集光电容积脉搏波信号(PPG)时,特别容易受到环境和采集对象所带来的噪声影响,导致采取的信号与真实值差距过大。针对这一问题,提出了一种PPG信号的去噪方式,给出一种长鼻浣熊优化算法,利用通过最小包络熵作为评判标准,取确定变分模态分解(VMD)的最优模态分量的个数和惩罚因子,这两个参数直接影响到了VMD的处理结果的好坏。以此对原始信号进行分解,利用余弦相似度区分不同的IMFs,再利用小波去噪,最后将信号进行重构,得到去噪后的信号。仿真和实验结果表明:与传统的去噪方法相比,提出的方法处理信号信噪比更高,均方差更低,波形相似度更高。 展开更多
关键词 光电容积脉搏波 长鼻浣熊优化算法 变分模态分解 小波阈值去噪 最小包络熵 余弦相似度
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