Microseismic monitoring and signal recognition constitute critical technologies for accurately assessing rockburst risks and ensuring the safe construction of underground rock engineering.This study developed a"S...Microseismic monitoring and signal recognition constitute critical technologies for accurately assessing rockburst risks and ensuring the safe construction of underground rock engineering.This study developed a"Surface+Underground"microseismic intelligent monitoring system to evaluate dynamic disaster risks during construction at the Beishan High-level Radioactive Waste Geological Disposal Laboratory in China.The datasets of four typical one-dimensional time-domain microseismic signals,including rock fracture,blasting,TBM tunneling,and drilling,were constructed,and the BO-CNN-LSTM model is developed to identify and classify these signals..Based on the classification results,the typical time-frequency domain characteristics of the four types of signals are analyzed.The classification results of BO-CNN-LSTM,CNN,LSTM and CNN-LSTM models show that the recognition accuracy of the four models is 98.0%,85.7%,66.7%and 91.0%,respectively.Among all types,the four models demonstrate the highest effectiveness in identifying rock fracture and borehole signals.The findings further confirm that the BO-CNN-LSTM model efficiently recognizes and extracts microseismic signal features,demonstrating superior performance and stability in the classification task.Finally,the study suggests several future research directions,particularly in the areas of raw signal denoising,and automation of feature extraction.展开更多
Optimizing convolutional neural networks(CNNs)for IoT attack detection remains a critical yet challenging task due to the need to balance multiple performance metrics beyond mere accuracy.This study proposes a unified...Optimizing convolutional neural networks(CNNs)for IoT attack detection remains a critical yet challenging task due to the need to balance multiple performance metrics beyond mere accuracy.This study proposes a unified and flexible optimization framework that leverages metaheuristic algorithms to automatically optimize CNN configurations for IoT attack detection.Unlike conventional single-objective approaches,the proposed method formulates a global multi-objective fitness function that integrates accuracy,precision,recall,and model size(speed/model complexity penalty)with adjustable weights.This design enables both single-objective and weightedsum multi-objective optimization,allowing adaptive selection of optimal CNN configurations for diverse deployment requirements.Two representativemetaheuristic algorithms,GeneticAlgorithm(GA)and Particle Swarm Optimization(PSO),are employed to optimize CNNhyperparameters and structure.At each generation/iteration,the best configuration is selected as themost balanced solution across optimization objectives,i.e.,the one achieving themaximum value of the global objective function.Experimental validation on two benchmark datasets,Edge-IIoT and CIC-IoT2023,demonstrates that the proposed GA-and PSO-based models significantly enhance detection accuracy(94.8%–98.3%)and generalization compared with manually tuned CNN configurations,while maintaining compact architectures.The results confirm that the multi-objective framework effectively balances predictive performance and computational efficiency.This work establishes a generalizable and adaptive optimization strategy for deep learning-based IoT attack detection and provides a foundation for future hybrid metaheuristic extensions in broader IoT security applications.展开更多
宝鸡市滑坡灾害频发,但当前该区域滑坡编录数据样本较少,同时若仅采用滑坡点样本训练模型会导致模型的空间代表性不足,从而制约对该区域滑坡易发性评价的精度。针对此,结合卷积神经网络模型(convolutional neural net‐work,CNN)的局部...宝鸡市滑坡灾害频发,但当前该区域滑坡编录数据样本较少,同时若仅采用滑坡点样本训练模型会导致模型的空间代表性不足,从而制约对该区域滑坡易发性评价的精度。针对此,结合卷积神经网络模型(convolutional neural net‐work,CNN)的局部特征提取优势和注意力机制Transformer的全局建模能力,提出一种融合Transformer与CNN的正样本缓冲滑坡易发性评价模型。依据滑坡规模设置90~130 m动态缓冲区扩展正样本,并综合考虑地形地貌、地质条件、水文气象和人类工程等选取13类滑坡影响因子,通过多重共线性分析后构建了滑坡评价体系。研究结果显示,采用缓冲区将随机森林、CNN、Transformer、Transformer-CNN模型四者的ROC曲线下的面积(area under the curve,AUC)从0.834、0.852、0.847、0.875分别提升至0.883、0.913、0.926、0.959。此外,Transformer-CNN相较CNN、Transformer,未缓冲时AUC分别从0.852、0.847提升至0.875,进行缓冲时分别从0.913、0.926提升至0.959;基于夏普利加性解释算法可解释性分析进一步揭示出岩性、年降雨、坡向三类因子对滑坡易发性预测贡献度最大,贡献度分别达0.55、0.47、0.43,且三者交互效应显著,为锁定区域滑坡高易发区提供了可量化的依据。展开更多
基金Project supported by the China Atomic Energy Authority(CAEA)through the Geological Disposal ProgramProjects(U24A20616,U24B2038)supported by the National Natural Science Foundation of ChinaProject(2025-05)supported by the Guangdong Provincial Water Conservancy Science and Technology Innovation Project,China。
摘要Microseismic monitoring and signal recognition constitute critical technologies for accurately assessing rockburst risks and ensuring the safe construction of underground rock engineering.This study developed a"Surface+Underground"microseismic intelligent monitoring system to evaluate dynamic disaster risks during construction at the Beishan High-level Radioactive Waste Geological Disposal Laboratory in China.The datasets of four typical one-dimensional time-domain microseismic signals,including rock fracture,blasting,TBM tunneling,and drilling,were constructed,and the BO-CNN-LSTM model is developed to identify and classify these signals..Based on the classification results,the typical time-frequency domain characteristics of the four types of signals are analyzed.The classification results of BO-CNN-LSTM,CNN,LSTM and CNN-LSTM models show that the recognition accuracy of the four models is 98.0%,85.7%,66.7%and 91.0%,respectively.Among all types,the four models demonstrate the highest effectiveness in identifying rock fracture and borehole signals.The findings further confirm that the BO-CNN-LSTM model efficiently recognizes and extracts microseismic signal features,demonstrating superior performance and stability in the classification task.Finally,the study suggests several future research directions,particularly in the areas of raw signal denoising,and automation of feature extraction.
摘要Optimizing convolutional neural networks(CNNs)for IoT attack detection remains a critical yet challenging task due to the need to balance multiple performance metrics beyond mere accuracy.This study proposes a unified and flexible optimization framework that leverages metaheuristic algorithms to automatically optimize CNN configurations for IoT attack detection.Unlike conventional single-objective approaches,the proposed method formulates a global multi-objective fitness function that integrates accuracy,precision,recall,and model size(speed/model complexity penalty)with adjustable weights.This design enables both single-objective and weightedsum multi-objective optimization,allowing adaptive selection of optimal CNN configurations for diverse deployment requirements.Two representativemetaheuristic algorithms,GeneticAlgorithm(GA)and Particle Swarm Optimization(PSO),are employed to optimize CNNhyperparameters and structure.At each generation/iteration,the best configuration is selected as themost balanced solution across optimization objectives,i.e.,the one achieving themaximum value of the global objective function.Experimental validation on two benchmark datasets,Edge-IIoT and CIC-IoT2023,demonstrates that the proposed GA-and PSO-based models significantly enhance detection accuracy(94.8%–98.3%)and generalization compared with manually tuned CNN configurations,while maintaining compact architectures.The results confirm that the multi-objective framework effectively balances predictive performance and computational efficiency.This work establishes a generalizable and adaptive optimization strategy for deep learning-based IoT attack detection and provides a foundation for future hybrid metaheuristic extensions in broader IoT security applications.
摘要宝鸡市滑坡灾害频发,但当前该区域滑坡编录数据样本较少,同时若仅采用滑坡点样本训练模型会导致模型的空间代表性不足,从而制约对该区域滑坡易发性评价的精度。针对此,结合卷积神经网络模型(convolutional neural net‐work,CNN)的局部特征提取优势和注意力机制Transformer的全局建模能力,提出一种融合Transformer与CNN的正样本缓冲滑坡易发性评价模型。依据滑坡规模设置90~130 m动态缓冲区扩展正样本,并综合考虑地形地貌、地质条件、水文气象和人类工程等选取13类滑坡影响因子,通过多重共线性分析后构建了滑坡评价体系。研究结果显示,采用缓冲区将随机森林、CNN、Transformer、Transformer-CNN模型四者的ROC曲线下的面积(area under the curve,AUC)从0.834、0.852、0.847、0.875分别提升至0.883、0.913、0.926、0.959。此外,Transformer-CNN相较CNN、Transformer,未缓冲时AUC分别从0.852、0.847提升至0.875,进行缓冲时分别从0.913、0.926提升至0.959;基于夏普利加性解释算法可解释性分析进一步揭示出岩性、年降雨、坡向三类因子对滑坡易发性预测贡献度最大,贡献度分别达0.55、0.47、0.43,且三者交互效应显著,为锁定区域滑坡高易发区提供了可量化的依据。