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The evolution of China's green technology innovation cooperation network and the effect of carbon emission reduction
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作者 Sufan Gao Brian Fath +3 位作者 Feiyan Liang Saige Wang Zhiming Yang Xiuqian Chen 《Ecological Frontiers》 2026年第1期351-367,共17页
This study analyzes the evolution of China's green technology innovation cooperation network from 2011 to 2020,utilizing green patent application data.Employing a Spatial Durbin Model(SDM),we scrutinized the netwo... This study analyzes the evolution of China's green technology innovation cooperation network from 2011 to 2020,utilizing green patent application data.Employing a Spatial Durbin Model(SDM),we scrutinized the network's influence on urban carbon emissions,utilizing panel data encompassing 323 city nodes.Results show network expansion and a shift in central nodes from eastern coastal areas to interior cities,with Beijing,Shenzhen,Nanjing,and Shanghai consistently acting as key innovation hubs.A core-periphery structure emerged,clustering cities into high-and low-cooperation clusters.Core cities,particularly Beijing,which gain informational advantages by bridging non-overlapping nodes and exhibit distinct characteristics in terms of the structural hole indexes,reflecting their multifaceted roles within the network.SDM analysis indicates that the green technology innovation cooperation network has a significant positive impact on urban carbon reduction efforts.Specifically,degree centrality,closeness centrality,effective size,efficiency,and hierarchy of node cities exhibit a negative correlation with carbon emissions,suggesting that higher centrality and efficiency within the network correlate with lower emissions.Conversely,betweenness centrality and constraint have a positive impact on emissions,indicating that cities that act as bridges in the network may paradoxically contribute to higher emissions.Moreover,the network's influence on carbon emissions is nuanced across different green technology sectors.Cooperation in areas such as waste management,alternative energy production,energy conservation,agriculture and forestry,and transportation is found to have a more substantial impact on carbon reduction than cooperation in nuclear power,and administrative,regulatory,and design fields. 展开更多
关键词 Green technology innovation cooperation network Carbon emissions Social network analysis Spatial Durbin model
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融合U-Net和Swin Transformer的鄱阳湖湿地地物精细分类研究
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作者 朱煜峰 刘会超 赵宇 《测绘工程》 2026年第2期40-47,共8页
为解决Sentinel-2影像中,鄱阳湖湿地典型地物由于光谱与边界混淆导致的精细分类难题,提出融合局部卷积与全局注意力的SwinTUNet模型,该模型在U-Net架构中嵌入SwinTransformer模块,协同捕捉局部细节与全局上下文依赖,显著提升对纹理相似... 为解决Sentinel-2影像中,鄱阳湖湿地典型地物由于光谱与边界混淆导致的精细分类难题,提出融合局部卷积与全局注意力的SwinTUNet模型,该模型在U-Net架构中嵌入SwinTransformer模块,协同捕捉局部细节与全局上下文依赖,显著提升对纹理相似、边界模糊湿地地物(如水体、沼泽)的判别能力。基于鄱阳湖Sentinel-2影像,验证模型有效优化多尺度特征整合与空间异质性处理效果,在保持地物空间连续性的同时,实现多光谱湿地场景的高精度分类的可靠性。结果表明:SwinTUNet较传统深度卷积网络显著提升语义理解能力和空间边界识别效果,在mIoU指标上显著优于主流模型,较U-Net提升7.1%,较FPN、MANet和PSPNet分别提升6.7%、8.4%和4.5%;在关键地物识别中,裸地Recall与F1分数分别提高24.5%与14.6%,建设用地F1分数达0.823。该模型有效提升小样本识别性能,为解决湿地分类中的多尺度整合与空间异质性问题提供新思路。 展开更多
关键词 多光谱遥感 深度学习 地物分类
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SAMSNet:融合分散注意力与多尺度通道注意力的遥感道路提取网络
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作者 魏德宾 徐永强 +1 位作者 李品儒 解鸿基 《遥感学报》 北大核心 2026年第2期371-384,共14页
从遥感图像中自动提取道路在智慧城市、智慧交通和自动驾驶等领域有着广泛的应用前景。然而,从高分辨率遥感图像中自动提取的道路存在碎片化、连通性差等问题,提取完整的道路仍然具有挑战性。为此,本文提出一种改进的编码器—解码器网络... 从遥感图像中自动提取道路在智慧城市、智慧交通和自动驾驶等领域有着广泛的应用前景。然而,从高分辨率遥感图像中自动提取的道路存在碎片化、连通性差等问题,提取完整的道路仍然具有挑战性。为此,本文提出一种改进的编码器—解码器网络SAMSNet(Split-Attention and Multi-Scale Attention Network)。首先,采用Split-Attention Network(ResNeSt-50)作为编码器,通过跨通道提取图像的语义信息以实现高质量的特征表示;其次,引入级联并行的空洞卷积块,在扩大感受野的同时提高网络对多尺度上下文信息的感知能力;最后,在跳跃连接部分引入多尺度通道注意力模块MS-CAM(Multi-Scale Channel Attention Module),同时关注分布全局的和局部的道路信息,帮助网络识别和检测极端尺度变化下的道路。并在DeepGlobe Road数据集、Massachusetts Road数据集和GRSet数据集上进行实验验证,将本文提出的SAMSNet与其他9种主流模型进行对比。验证结果表明,SAMSNet在3个公开数据集上的IoU和F1-score等多项评价指标均优于其他对比模型,取得了最优的提取结果。 展开更多
关键词 遥感图像 道路提取 语义分割 ResNeSt-50 分散注意力 多尺度通道注意力 空洞卷积
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基于多尺度注意力视觉Mamba U-Net的耕地遥感分割方法
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作者 侯新刚 王勤令 伟锋 《农业机械学报》 北大核心 2026年第4期279-286,共8页
耕地遥感影像的准确分割对产量预测、农业经营和国家粮食安全至关重要。由于遥感农田图像分辨率高、尺寸大、种类多、边界不规则、背景复杂等特点,以及遥感图像分割中广泛应用的卷积神经网络和Transformer存在难以提取远程依赖关系和计... 耕地遥感影像的准确分割对产量预测、农业经营和国家粮食安全至关重要。由于遥感农田图像分辨率高、尺寸大、种类多、边界不规则、背景复杂等特点,以及遥感图像分割中广泛应用的卷积神经网络和Transformer存在难以提取远程依赖关系和计算复杂度高等局限性,使得农田遥感图像分割研究仍具有一定挑战性。针对当前耕地遥感分割任务中存在的边界模糊、地类混杂等问题,本文提出一种新型多尺度注意力视觉Mamba U-Net(MSAVM-UNet)模型。该模型通过3个模块实现性能突破:首先,改进视觉状态空间模块采用双向选择性扫描机制,在保持线性计算复杂度的同时实现长程依赖建模;其次,通道感知注意力状态空间模块通过动态光谱-空间特征重标定,有效提升耕地与背景地物的区分度;最后,构建多尺度跨层级特征金字塔特征聚合模块,实现多粒度信息融合。在公开耕地数据集的试验表明,MSAVM-UNet在分割精度和计算效率方面均显著优于现有方法,平均分割精度和相似系数分别达到85.60%和84.46%。研究结果为智慧农业耕地精准监测提供了可靠技术支撑。 展开更多
关键词 耕地遥感图像分割 通道感知注意力视觉状态空间 多尺度注意力聚合 MSAVM-Unet
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Special Topic on New Generation FTTR Communication and Networking Technology
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作者 GE Xiaohu ZHONG Yi 《ZTE Communications》 2025年第4期1-2,共2页
The convergence of optical and wireless technologies is driving the evolution of intelligent indoor networks,with Fiber-to-the-Room(FTTR)emerging as a key ar⁃chitecture for delivering gigabit connectivity in both home... The convergence of optical and wireless technologies is driving the evolution of intelligent indoor networks,with Fiber-to-the-Room(FTTR)emerging as a key ar⁃chitecture for delivering gigabit connectivity in both home and enterprise environments.By deploying optical fiber directly to rooms and integrating it with advanced wireless so⁃lutions such as millimeter-wave and Wi-Fi 7,FTTR enables next-generation applications,including immersive Virtual Re⁃ality(VR)/Augmented Reality(AR)and industrial Internet of Things(IoT).Nevertheless,its large-scale deployment pres⁃ents challenges in network management,energy efficiency,in⁃terference mitigation,and intelligent root cause analysis. 展开更多
关键词 gigabit connectivity wireless technology intelligent indoor network optical fiber advanced wireless lutions optical wireless technologies FTTR intelligent indoor networkswith
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Analysis of Internet of Things Intrusion Detection Technology Based on Deep Learning
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作者 Huijuan Zheng Yongzhou Wang 《Journal of Electronic Research and Application》 2025年第2期233-239,共7页
With the rapid development of modern information technology,the Internet of Things(IoT)has been integrated into various fields such as social life,industrial production,education,and medical care.Through the connectio... With the rapid development of modern information technology,the Internet of Things(IoT)has been integrated into various fields such as social life,industrial production,education,and medical care.Through the connection of various physical devices,sensors,and machines,it realizes information intercommunication and remote control among devices,significantly enhancing the convenience and efficiency of work and life.However,the rapid development of the IoT has also brought serious security problems.IoT devices have limited resources and a complex network environment,making them one of the important targets of network intrusion attacks.Therefore,from the perspective of deep learning,this paper deeply analyzes the characteristics and key points of IoT intrusion detection,summarizes the application advantages of deep learning in IoT intrusion detection,and proposes application strategies of typical deep learning models in IoT intrusion detection so as to improve the security of the IoT architecture and guarantee people’s convenient lives. 展开更多
关键词 Deep learning Internet of Things Intrusion detection technology
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Research on Governance Strategy of Internet Public Opinion Reversal based on Blockchain Technology
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作者 Fei Wang 《Journal of Electronic Research and Application》 2025年第3期44-51,共8页
In recent years,the network public opinion reversal governance events have occurred frequently.Over time,the repeated truth of the matter will not only weaken the rational judgment of the public to a certain extent,so... In recent years,the network public opinion reversal governance events have occurred frequently.Over time,the repeated truth of the matter will not only weaken the rational judgment of the public to a certain extent,so that its negative emotions accumulate,but also have a serious impact on the credibility of the media and the government,and may even further intensify social contradictions.Therefore,in the face of such a complex online public opinion space,accurately identifying the truth behind the incident and how to carry out the reversal of online public opinion governance is particularly critical.And blockchain technology,with its advantages of decentralization and immutable information,provides new technical support for the network public opinion reversal governance.Based on this,this paper gives an overview and analysis of blockchain technology and network public opinion reversal,and on this basis introduces the network public opinion reversal governance mechanism based on blockchain technology,aiming to further optimize the network public opinion reversal governance process,for reference only. 展开更多
关键词 Blockchain technology network public opinion reversal Governance strategy
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Exploration of the Application of Internet of Things Technology in Real-time Monitoring of Cold Chain Logistics
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作者 Huiling Ma Xinyuan Liu +1 位作者 Weihan Zhao Haoyue Wu 《Journal of Electronic Research and Application》 2025年第3期165-170,共6页
The Internet of Things technology provides a comprehensive solution for the real-time monitoring of cold chain logistics by integrating sensors,wireless communication,cloud computing,and big data analysis.Based on thi... The Internet of Things technology provides a comprehensive solution for the real-time monitoring of cold chain logistics by integrating sensors,wireless communication,cloud computing,and big data analysis.Based on this,this paper deeply explores the overview and characteristics of the Internet of Things technology,the feasibility analysis of the Internet of Things technology in the cold chain logistics monitoring,the application analysis of the Internet of Things technology in the cold chain logistics real-time monitoring to better improve the management level and operational efficiency of the cold chain logistics,to provide consumers with safer and fresh products. 展开更多
关键词 Internet of Things technology Cold chain logistics Real-time monitoring
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基于GoogLeNet的黄土地震滑坡遥感影像识别
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作者 李平 王连升 +1 位作者 李孝波 范钟元 《地震工程学报》 北大核心 2026年第3期672-681,共10页
区域性黄土地震滑坡识别为滑坡灾害风险管控提供了基础性数据。应用深度学习的方法,基于遥感影像数据对我国黄土地区典型地震滑坡进行自动识别分类。首先,基于防灾科技学院地震滑坡研究团队在甘肃、宁夏地区所调查的部分黄土地震滑坡数... 区域性黄土地震滑坡识别为滑坡灾害风险管控提供了基础性数据。应用深度学习的方法,基于遥感影像数据对我国黄土地区典型地震滑坡进行自动识别分类。首先,基于防灾科技学院地震滑坡研究团队在甘肃、宁夏地区所调查的部分黄土地震滑坡数据库,辅助遥感影像目视解译,选择滑坡和非滑坡样本;其次,采用GoogLeNet网络模型对黄土地震滑坡与非滑坡进行自动分类识别;最后,对模型的分类识别结果进行精度评价,分析其在黄土地区地震滑坡的识别应用效果。结果表明,该方法识别黄土地震滑坡的准确度和效率均较高,可迅速在遥感影像中确定滑坡的重点区域。所提方法可以迅速评价同类型滑坡区域,为大规模滑坡灾害排查工作提供技术支持。 展开更多
关键词 滑坡识别 黄土地震滑坡 遥感分类 GoogLenet模型
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Application of Transcranial Magnetic Stimulation Technology in the Management of Motor Symptoms of Parkinson’s Disease
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作者 Chengming Wang 《Journal of Clinical and Nursing Research》 2025年第5期284-290,共7页
Objective:To study the effect of transcranial magnetic stimulation(TMS)on improving motor symptoms in patients with Parkinson’s disease(PD).Methods:60 PD patients who visited the hospital from September 2023 to Augus... Objective:To study the effect of transcranial magnetic stimulation(TMS)on improving motor symptoms in patients with Parkinson’s disease(PD).Methods:60 PD patients who visited the hospital from September 2023 to August 2024 were selected as samples and randomly divided into two groups.Group A received conventional medication plus TMS treatment,while Group B received medication only.The efficacy of motor function improvement,neurological symptoms,mental state,sleep quality,quality of life,and adverse reactions was compared between the two groups.Results:The efficacy of Group A was higher than that of Group B(P<0.05).The scores of the Scales for Outcomes in Parkinson’s Disease-Autonomic(SCOPA-AUT),Mini-Mental State Examination(MMSE),and Pittsburgh Sleep Quality Index(PSQI)in Group A were lower than those in Group B(P<0.05).The quality of life scale(SF-36)score in Group A was higher than that in Group B(P<0.05).The adverse reaction rate in Group A was lower than that in Group B(P<0.05).Conclusion:TMS used in the treatment of PD patients can improve patients’mental state and motor function,optimize sleep quality and quality of life,and is safe and efficient. 展开更多
关键词 Parkinson’s disease Transcranial magnetic stimulation technology Motor symptom management
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2024 HP special volume:Advances in high-pressure technology,novel physics and chemistry,and applications to earth and planetary sciences
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作者 Ho-Kwang Mao Huiyang Gou +8 位作者 Qingyang Hu Michel Koenig Gang Liu Jin Liu Lin Wang Hong Xiao Wenge Yang Qiaoshi Zeng Wenjun Zhu 《Matter and Radiation at Extremes》 2025年第6期1-3,共3页
The 2024 MRE HP Special Volume selects papers on new theoretical and experimental developments in the use of static largevolume presses(LVPs)1–3 and dynamic compression4,5 for studies under extreme high-pressure and ... The 2024 MRE HP Special Volume selects papers on new theoretical and experimental developments in the use of static largevolume presses(LVPs)1–3 and dynamic compression4,5 for studies under extreme high-pressure and high-temperature(HPHT)conditions.It also continues the previous year’s6 contemporary focus on superhydrides7–11 with extremely high superconducting temperatures Tc and addresses some controversial issues.12–14 In addition,it explores unconventional pressure-induced chemistry,particularly novel chemical stoichiometry and its impact on geochemistry and cosmochemistry in the deep interiors of Earth and other planets.18–21. 展开更多
关键词 static large volume presses novel physics CHEMISTRY earth sciences dynamic compression high pressure technology superconducting temperatures planetary sciences
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基于双分支U-Net的遥感影像稻田分割方法
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作者 王漫 吴敏琪 +2 位作者 胡冬 田明璐 李琳一 《农业机械学报》 北大核心 2026年第3期306-314,共9页
遥感影像中小面积、分布零散的水稻田块难以精准分割。基于线性光谱组合的输入无法挖掘波段间非线性耦合关系,基于堆叠波段影像的输入易引入冗余信息。针对此问题,本文提出一种基于U-Net的改进网络,该网络以RGB与NRG假彩色影像作为双输... 遥感影像中小面积、分布零散的水稻田块难以精准分割。基于线性光谱组合的输入无法挖掘波段间非线性耦合关系,基于堆叠波段影像的输入易引入冗余信息。针对此问题,本文提出一种基于U-Net的改进网络,该网络以RGB与NRG假彩色影像作为双输入,采用双编码器结构提取多模态特征信息,并结合局部金字塔注意力模块与自适应多尺度注意力特征融合模块,显著提升网络对小尺度水稻田块的感知与分割能力。对构建的水稻影像数据集进行实验,表明DFAU-Net在分割精度、鲁棒性和效率上表现优异。其Dice系数、平均交并比和准确率分别达到77.54%、86.34%和91.48%,较多种主流方法具有明显优势。进一步的消融实验验证了LPA模块、AMSADFF模块和双分支结构的有效性。该方法不仅能提高水稻田块的分割精度,也为复杂背景下的小目标分割提供了有效的解决方案。此外,本研究展示了高分辨率遥感影像在农业监测中的潜力,为精准农业、作物监测及产量估算提供了新的技术路径。综合而言,DFAU-Net为解决小规模水稻田块分割难题提供了有效的技术支持,具有广泛的实际应用价值。 展开更多
关键词 稻田分割 遥感影像 深度学习 注意力机制 小目标识别
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基于改进Unet++网络的遥感图像建筑物分割方法
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作者 于双双 康帅 +2 位作者 张建军 靳满 俞叶 《科学技术与工程》 北大核心 2026年第4期1607-1615,共9页
由于建筑物周围的环境复杂以及建筑物尺度各异,当建筑物尺度较小时,建筑物容易出现漏分割或分割不完整现象,从而导致提取结果的精度降低。为了解决上述困难,提出一种基于Unet++架构的改进模型(REUnet++),通过引入残差网络ResNet34作为... 由于建筑物周围的环境复杂以及建筑物尺度各异,当建筑物尺度较小时,建筑物容易出现漏分割或分割不完整现象,从而导致提取结果的精度降低。为了解决上述困难,提出一种基于Unet++架构的改进模型(REUnet++),通过引入残差网络ResNet34作为编码器结构,从而提升模型的表现。然后在模型内部加入注意力模块SE,增强模型对数据集中重要特征的提取能力。通过在公开数据集xBD上进行实验研究。实验结果表明:REUnet++模型在特征提取和复杂场景分割精度方面均超越现有的其他模型,与Unet++模型相比较,F1得分提升了3.08%,交并比得分增加了4.68%,同时其他相关性能指标也得到了显著提升。最后通过WHU建筑物数据集进一步验证了模型的泛化性能。 展开更多
关键词 遥感图像 Unet++ 残差网络 注意力模块 建筑物提取
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融合多源特征与注意力机制的改进U-Net鱼鳞坑遥感提取方法
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作者 魏敬志 黄骁力 +4 位作者 江岭 梁明 张大鹏 王莎莎 宋音 《农业工程学报》 北大核心 2026年第2期214-224,共11页
鱼鳞坑是黄土高原典型的小型水土保持措施,由于其尺度小、分布不均,传统卫星遥感方法难以实现高精度识别。为此,该研究提出一种融合多源特征与注意力机制的深度学习鱼鳞坑遥感提取方法,构建了“特征重要性分析+注意力增强U-Net结构设计... 鱼鳞坑是黄土高原典型的小型水土保持措施,由于其尺度小、分布不均,传统卫星遥感方法难以实现高精度识别。为此,该研究提出一种融合多源特征与注意力机制的深度学习鱼鳞坑遥感提取方法,构建了“特征重要性分析+注意力增强U-Net结构设计”的技术框架。基于无人机获取的高分辨率多光谱影像与数字高程模型(digital elevation model,DEM),该研究综合运用Spearman相关系数与SHAP(Shapley additive explanations)可解释性分析方法,对光谱与地形特征进行重要性评估与冗余剔除,最终优选出4类关键特征,并据此设计了9种特征组合方案。在此基础上,采用UNet、DeepLabV3+、SegNet与FCN四种语义分割模型开展对比试验,结果表明以RGB+Slope的特征组合方案在UNet模型中识别效果最优。在模型结构方面,该研究以U-Net为基础,融合金字塔压缩注意力模块(pyramid squeeze attention module,PSAM)与多级特征注意力上采样模块(multi-scale feature attention upsampling module,MFAU),增强模型对鱼鳞坑边缘与空间结构的感知能力,并设计消融试验验证改进效果。试验结果表明,在最优特征组合的数据输入下,改进模型在测试区交并比提升2.47个百分点,F1分数提升1.34个百分点,召回率提升2.72个百分点,精确率提升1.02个百分点,表现出良好的提取精度与区域泛化能力。研究表明,特征重要性分析与注意力增强结构设计的融合策略可有效提升模型对小尺度地貌目标的识别性能,为鱼鳞坑等微地形构筑物的高精度遥感提取提供技术支撑,也为多源信息融合与深度学习模型构建提供了理论参考。 展开更多
关键词 无人机 遥感 语义分割 鱼鳞坑提取 U-net改进 注意力机制
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MewCDNet: A Wavelet-Based Multi-Scale Interaction Network for Efficient Remote Sensing Building Change Detection
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作者 Jia Liu Hao Chen +5 位作者 Hang Gu Yushan Pan Haoran Chen Erlin Tian Min Huang Zuhe Li 《Computers, Materials & Continua》 2026年第1期687-710,共24页
Accurate and efficient detection of building changes in remote sensing imagery is crucial for urban planning,disaster emergency response,and resource management.However,existing methods face challenges such as spectra... Accurate and efficient detection of building changes in remote sensing imagery is crucial for urban planning,disaster emergency response,and resource management.However,existing methods face challenges such as spectral similarity between buildings and backgrounds,sensor variations,and insufficient computational efficiency.To address these challenges,this paper proposes a novel Multi-scale Efficient Wavelet-based Change Detection Network(MewCDNet),which integrates the advantages of Convolutional Neural Networks and Transformers,balances computational costs,and achieves high-performance building change detection.The network employs EfficientNet-B4 as the backbone for hierarchical feature extraction,integrates multi-level feature maps through a multi-scale fusion strategy,and incorporates two key modules:Cross-temporal Difference Detection(CTDD)and Cross-scale Wavelet Refinement(CSWR).CTDD adopts a dual-branch architecture that combines pixel-wise differencing with semanticaware Euclidean distance weighting to enhance the distinction between true changes and background noise.CSWR integrates Haar-based Discrete Wavelet Transform with multi-head cross-attention mechanisms,enabling cross-scale feature fusion while significantly improving edge localization and suppressing spurious changes.Extensive experiments on four benchmark datasets demonstrate MewCDNet’s superiority over comparison methods:achieving F1 scores of 91.54%on LEVIR,93.70%on WHUCD,and 64.96%on S2Looking for building change detection.Furthermore,MewCDNet exhibits optimal performance on the multi-class⋅SYSU dataset(F1:82.71%),highlighting its exceptional generalization capability. 展开更多
关键词 Remote sensing change detection deep learning wavelet transform MULTI-SCALE
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GLMCNet: A Global-Local Multiscale Context Network for High-Resolution Remote Sensing Image Semantic Segmentation
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作者 Yanting Zhang Qiyue Liu +4 位作者 Chuanzhao Tian Xuewen Li Na Yang Feng Zhang Hongyue Zhang 《Computers, Materials & Continua》 2026年第1期2086-2110,共25页
High-resolution remote sensing images(HRSIs)are now an essential data source for gathering surface information due to advancements in remote sensing data capture technologies.However,their significant scale changes an... High-resolution remote sensing images(HRSIs)are now an essential data source for gathering surface information due to advancements in remote sensing data capture technologies.However,their significant scale changes and wealth of spatial details pose challenges for semantic segmentation.While convolutional neural networks(CNNs)excel at capturing local features,they are limited in modeling long-range dependencies.Conversely,transformers utilize multihead self-attention to integrate global context effectively,but this approach often incurs a high computational cost.This paper proposes a global-local multiscale context network(GLMCNet)to extract both global and local multiscale contextual information from HRSIs.A detail-enhanced filtering module(DEFM)is proposed at the end of the encoder to refine the encoder outputs further,thereby enhancing the key details extracted by the encoder and effectively suppressing redundant information.In addition,a global-local multiscale transformer block(GLMTB)is proposed in the decoding stage to enable the modeling of rich multiscale global and local information.We also design a stair fusion mechanism to transmit deep semantic information from deep to shallow layers progressively.Finally,we propose the semantic awareness enhancement module(SAEM),which further enhances the representation of multiscale semantic features through spatial attention and covariance channel attention.Extensive ablation analyses and comparative experiments were conducted to evaluate the performance of the proposed method.Specifically,our method achieved a mean Intersection over Union(mIoU)of 86.89%on the ISPRS Potsdam dataset and 84.34%on the ISPRS Vaihingen dataset,outperforming existing models such as ABCNet and BANet. 展开更多
关键词 Multiscale context attention mechanism remote sensing images semantic segmentation
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AdvYOLO:An Improved Cross-Conv-Block Feature Fusion-Based YOLO Network for Transferable Adversarial Attacks on ORSIs Object Detection
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作者 Leyu Dai Jindong Wang +2 位作者 Ming Zhou Song Guo Hengwei Zhang 《Computers, Materials & Continua》 2026年第4期767-792,共26页
In recent years,with the rapid advancement of artificial intelligence,object detection algorithms have made significant strides in accuracy and computational efficiency.Notably,research and applications of Anchor-Free... In recent years,with the rapid advancement of artificial intelligence,object detection algorithms have made significant strides in accuracy and computational efficiency.Notably,research and applications of Anchor-Free models have opened new avenues for real-time target detection in optical remote sensing images(ORSIs).However,in the realmof adversarial attacks,developing adversarial techniques tailored to Anchor-Freemodels remains challenging.Adversarial examples generated based on Anchor-Based models often exhibit poor transferability to these new model architectures.Furthermore,the growing diversity of Anchor-Free models poses additional hurdles to achieving robust transferability of adversarial attacks.This study presents an improved cross-conv-block feature fusion You Only Look Once(YOLO)architecture,meticulously engineered to facilitate the extraction ofmore comprehensive semantic features during the backpropagation process.To address the asymmetry between densely distributed objects in ORSIs and the corresponding detector outputs,a novel dense bounding box attack strategy is proposed.This approach leverages dense target bounding boxes loss in the calculation of adversarial loss functions.Furthermore,by integrating translation-invariant(TI)and momentum-iteration(MI)adversarial methodologies,the proposed framework significantly improves the transferability of adversarial attacks.Experimental results demonstrate that our method achieves superior adversarial attack performance,with adversarial transferability rates(ATR)of 67.53%on the NWPU VHR-10 dataset and 90.71%on the HRSC2016 dataset.Compared to ensemble adversarial attack and cascaded adversarial attack approaches,our method generates adversarial examples in an average of 0.64 s,representing an approximately 14.5%improvement in efficiency under equivalent conditions. 展开更多
关键词 Remote sensing object detection transferable adversarial attack feature fusion cross-conv-block
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基于Netty的分布式RPC服务框架构建
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作者 李伟阳 陈远清 +1 位作者 郑清兰 王招治 《宁德师范学院学报(自然科学版)》 2026年第1期31-38,共8页
基于Netty的响应式(Reactory)模型,成功实现了分布式远程过程调用(RPC)服务框架。通过自定义RPC协议,对应用层进行优化。数据传输应用Reactory-Netty组件异步通信,提高框架网络通信效率;提出加权最短响应时间负载均衡策略,动态融合节点... 基于Netty的响应式(Reactory)模型,成功实现了分布式远程过程调用(RPC)服务框架。通过自定义RPC协议,对应用层进行优化。数据传输应用Reactory-Netty组件异步通信,提高框架网络通信效率;提出加权最短响应时间负载均衡策略,动态融合节点性能与拓扑状态实现动态负载,有效提升了系统在复杂多变场景的处理能力和响应速度。使用限流与熔断保护机制,确保资源不过度消耗。经过实验对比分析,基于Netty的响应式模型在响应时间和并发性上展现出了明显的优势。 展开更多
关键词 分布式服务 远程过程调用(RPC) netty 响应式模型 并发性
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基于面向对象法与U-Net模型的广东省云浮市云城区耕地后备资源遥感提取
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作者 于洋 李哲凡 +3 位作者 谢淑娟 刘振华 欧佳铭 司佳禾 《华南农业大学学报》 北大核心 2026年第1期42-51,共10页
【目的】提升耕地后备资源信息提取的效率与精度,满足现代农业发展对土地资源动态监测的需求。【方法】以广东省云浮市云城区为研究区域,提出一种融合面向对象规则构建与深度学习的耕地后备资源信息提取方法。利用高分6号高分辨率卫星... 【目的】提升耕地后备资源信息提取的效率与精度,满足现代农业发展对土地资源动态监测的需求。【方法】以广东省云浮市云城区为研究区域,提出一种融合面向对象规则构建与深度学习的耕地后备资源信息提取方法。利用高分6号高分辨率卫星影像开展多尺度图像分割,结合逐步剔除法构建地类识别规则,提取典型地类样本。随后,基于规则样本构建U-Net深度学习模型的训练标签数据集,完成耕地后备资源提取与分类。【结果】针对云城区的最佳分割尺度为300,在该尺度下,同类地物可以被有效分割,草地与裸地边界划分清晰。本研究方法在研究区的总体精确率达87.3%,平均交并比和F1分数分别达到75.4%和86.7%,能够实现复杂地物边界的精准提取。基于改进U-Net的深度学习方法能够有效减少误分类现象,特别是在边界模糊区域和混合像元区域,相较于传统面向对象方法,精确率提高了约5个百分点。【结论】本研究构建的遥感智能提取方法兼具高精度与时效性,能够为地方土地利用规划、耕地资源管理及生态保护提供有力支撑,具有良好的推广应用前景。 展开更多
关键词 遥感 耕地后备资源 面向对象 多尺度分割 规则集 深度学习
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Computing the Planet:Integrating Machine Learning,Remote Sensing,and Sensor Data Fusion for Environmental Insights
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作者 Kai Mao 《Journal of Environmental & Earth Sciences》 2026年第1期277-297,共21页
Indeed,a range of systems in the environment requires timely,spatially explicit,and credible information to support its environmental decision-making,but no one observing system can give the complete and reliable meas... Indeed,a range of systems in the environment requires timely,spatially explicit,and credible information to support its environmental decision-making,but no one observing system can give the complete and reliable measures of the Earth system across scales.This review summarizes how the realization of the Compute the Planet is underway in the form of machine learning,remote sensing,and sensor data fusion to generate decision-ready environmental insights.We use the application-first approach,which considers remote sensing,in situ and Internet of Things(IoT)sensing,and physics-based models as complementary streams of evidence with similar strengths and failures.We look critically at how an integrated system can convert heterogeneous observations to action products across three high impact application areas:atmosphere and air quality,water–land–ecosystem dynamics,and hazards.Rapid-response situational awareness,ecosystem condition metrics,drought and flood indicators,exposure maps,and hazard/extreme indicators are key products.The integrated systems to environment interface in three high impact application areas:atmosphere and air quality,water-land-ecosystem dynamics,and hazard Examine Our operational requirements can often determine real-life value such as latency,time stability,smooth degradation in the presence of missing or degraded inputs,and calibrated uncertainty usable in thresholdbased decisions.These pitfalls are common across fields:mismatch in the scale between a point sensor and a gridded product,objectives on proxies in remotely sensed measurements,domain shift in the extremes and changing baselines,and evaluation aspects,which overestimate generalization because of spatiotemporal autocorrelation.Based on these lessons,we present cross-domain proposals for strong validation,uncertainty quantification,provenance,and versioning,as well as fair performance evaluation.We conclude that the next era of environmental intelligence will see a reduction in average accuracy improvement and an increase in terms of robustness,transparency,and operational responsibility,thus allowing the integrated environmental intelligence system to be deployed,which may be relied on to monitor human health,resource allocation,and survival in a more climate-adapted world. 展开更多
关键词 Machine Learning Remote Sensing Sensor Data Fusion Environmental Monitoring Uncertainty Quantification
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