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Requirement-driven remote sensing metadata planning and online acquisition method for large-scale heterogeneous data 被引量:1
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作者 Shuang Wang Guoqing Li +1 位作者 Wenyang Yu Yue Ma 《Geo-Spatial Information Science》 SCIE EI CSCD 2022年第2期169-181,共13页
Remote sensing data acquisition is one of the most essential processes in the field of Earth observation.However,traditional methods to acquire data do not satisfy the requirements of current applications because larg... Remote sensing data acquisition is one of the most essential processes in the field of Earth observation.However,traditional methods to acquire data do not satisfy the requirements of current applications because large-scale data processing is required.To address this issue,this paper proposes a data acquisition framework that carries out remote sensing metadata planning and then realizes the online acquisition of large amounts of data.Firstly,this paper establishes a unified metadata cataloging model and realizes the catalog of metadata in a local database.Secondly,a coverage calculation model is presented,which can show users the data coverage information in a selected geographical region under the data requirements of a specific application.Finally,according to the data retrieval results and the coverage calcula-tion,a machine-to-machine interface is provided to acquire target remote sensing data.Experiments were conducted to verify the availability and practicality of the proposed frame-work,and the results show the strengths and powerful capabilities of our framework by overcoming deficiencies in traditional methods.It also achieved the online automatic acquisi-tion of large-scale heterogeneous remote sensing data,which can provide guidance for remote sensing data acquisition strategies. 展开更多
关键词 online data acquisition remote sensing metadata planning metadata cataloging model coverage calculation machine-to-machine interface
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Impacts of Online Remote Education on the Learning Process among Nursing Students
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作者 Kawther Abdel Ghafar Ali Hoda Esmat Mahmoud Khalil Fatma Mokhtar El-Sharkawy 《Open Journal of Nursing》 2020年第9期810-830,共21页
The period of existence and spread of Corona virus has led to the use of all means of remote education as an urgent necessity for all educational facilities, especially universities. <strong>Aim:</strong> ... The period of existence and spread of Corona virus has led to the use of all means of remote education as an urgent necessity for all educational facilities, especially universities. <strong>Aim:</strong> Therefore, it was necessary to study the impacts of online remote education on the learning process among nursing students through studying of two courses;health information management at 6th semester and gerontology nursing course at 4th semester. <strong>Tool of Data Collection:</strong> A modified questionnaire comprised of forty statements was used through paper-based survey and online survey. <strong>Sample:</strong> A total samples (224) of nursing students were participated in the survey who enrolled in 2019 and 2020 spring semesters. <strong>Setting:</strong> The field of study was the nursing department of Applied Medical Science at Misr University for Science and Technology. <strong>Results:</strong> Induced positive impacts of online education on the learning process for nursing students experience were proven as more than half of the students (53.9%) had prior experience on online system use, and more than two thirds (62.5%) were competent in mobile/computer applications. Almost, two thirds (59.3%) agreed about online assessment experience, except that the online exam was anxious, and the time was insufficient to answer all questions. Also, more than two thirds (64.7%) agreed about the learning process of the two nursing courses. <strong>Conclusion:</strong> The study concluded that there were positive impacts of online education system on the learning process for nursing students except that the students were not able to decide that the remote online education system can replace traditional face-to-face learning as the clinical experience was not evaluated through this study. <strong>Recommendation:</strong> This study is recommended to be repeated on a large scale of participants to assess the possibility of achieving clinical experience through online remote education if Corona virus still coexists. 展开更多
关键词 Corona Virus COVID-19 online Assessment online Education remote Education Learning Process Nursing Students Misr University for Science and Technology
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Nonlinear Integral-Ameliorated Model for Dynamic Convex Optimization With Perturbance Considered
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作者 Kangze Zheng Yunong Zhang 《IEEE/CAA Journal of Automatica Sinica》 2025年第7期1418-1433,共16页
This work presents a nonlinear integral-ameliorated model for handling dynamic optimization problems with affine constraints.They pose a challenge as their optimal solutions evolve with time.Traditional iteration-base... This work presents a nonlinear integral-ameliorated model for handling dynamic optimization problems with affine constraints.They pose a challenge as their optimal solutions evolve with time.Traditional iteration-based methods that exactly solve the problem at each time instant,fail to precisely and realtime track the solution due to computational and communication bottlenecks.Our model,through rigorous theoretical analyses,is able to reduce the optimality gap(i.e.,the difference between the model state and optimal solution)to zero in a finite time,and thus,track the solution online.Besides,perturbance is taken into account.We prove that under certain conditions,our model can totally tolerate an important kind of noise that we call“errorrelated noise”.In numerical experiments,compared with six existing methods,our model exhibits superior robustness when contaminated by the error-related noise.The key techniques in the model design involve employing the zeroing neural network to leverage time-derivative information,and introducing an integral term as well as the class C_(L)^(0)functions to enhance convergence and noise resistance.Finally,we establish a model-free control framework for a surgical manipulator with the remote-center-of-motion constraint and compare the performances of the framework based on different models in simulations.The results indicate that our model achieves the best performance among various models employed within the framework. 展开更多
关键词 Dynamic convex optimization error-related noise nonlinear integral-ameliorated zeroing neural network online solution remote center of motion
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通过NFS实现Informix-Online数据库异地备份 被引量:1
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作者 袁辉勇 《湖南人文科技学院学报》 2006年第3期68-70,共3页
介绍了NFS(网络文件系统)的原理和在SCO UNIX中配置NFS的方法,并给出了一个利用NFS对Inform ix-On line数据库进行异地备份的实例。由于数据异地备份是保证数据安全的基本要求,因此,该方法对需要异地备份数据的应用系统极具实用价值。
关键词 NFS UNIX 异地备份 Informix—online数据库 UNIX守护进程
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E-commerce development in rural and remote areas of BRICS countries 被引量:17
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作者 Karine HAJI 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第4期979-997,共19页
E-commerce plays an essential role in modern trade today.It is expected that e-commerce volume amounted to 29 trillion USD in the world in 2017,and would grow with the spread of the Internet and information and commun... E-commerce plays an essential role in modern trade today.It is expected that e-commerce volume amounted to 29 trillion USD in the world in 2017,and would grow with the spread of the Internet and information and communication technologies(ICTs).Brazil,Russia,India,China and South Africa(BRICS),together with many others,consider e-commerce a means to facilitate rapid,inclusive and sustainable economic growth,improving the living standards and alleviating poverty.This article examines areas for potential cooperation by BRICS countries in e-commerce development across rural and remote areas to fight poverty.It analyses the current state of e-commerce development in rural and remote areas in each of the BRICS countries,including cases of public and private initiatives to support it.The article also defines the opportunities which e-commerce brings to people living in rural and remote areas.Moreover,it evaluates the existing challenges and risks.The article concludes that despite the rapid e-commerce development in BRICS countries,and significant opportunities created,there are still issues of disproportionate e-commerce in varied regions and the lack of BRICS cooperation in this sphere.Based on a comparative and normative in-depth,systematic analysis,the article develops a set of recommendations for deepening BRICS countries'cooperation in the following areas:infrastructure in rural and remote regions;education;consumer protection;online dispute resolution;coordinated policy in the international scene,including representation of BRICS countries in international indexes,such as the Organization of Economic Co-operation and Development(OECD)Digital Services Trade Restrictiveness Index(STRI). 展开更多
关键词 E-COMMERCE BRICS poverty alleviation international cooperation remote and rural areas ICT infrastructure educational cooperation online dispute resolution consumer protection online Digital STRI
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A RBF classification method of remote sensing image based on genetic algorithm 被引量:1
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作者 万鲁河 张思冲 +1 位作者 刘万宇 臧淑英 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2006年第6期711-714,共4页
The remote sensing image classification has stimulated considerable interest as an effective method for better retrieving information from the rapidly increasing large volume, complex and distributed satellite remote ... The remote sensing image classification has stimulated considerable interest as an effective method for better retrieving information from the rapidly increasing large volume, complex and distributed satellite remote imaging data of large scale and cross-time, due to the increase of remote image quantities and image resolutions. In the paper, the genetic algorithms were employed to solve the weighting of the radial basis faction networks in order to improve the precision of remote sensing image classification. The remote sensing image classification was also introduced for the GIS spatial analysis and the spatial online analytical processing (OLAP), and the resulted effectiveness was demonstrated in the analysis of land utilization variation of Daqing city. 展开更多
关键词 genetic algorithm radial basis function networks remote sensing image classification spatial online analytical processing GIS
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利用RemoteApp实现涉密电子信息集中管控系统的安全在线编辑 被引量:3
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作者 李康 陈清华 《计算机应用与软件》 北大核心 2019年第11期311-314,321,共5页
从涉密电子信息分散存储在用户的电脑、手机或移动存储,到采用涉密电子信息集中管控系统来集中管控涉密电子信息,体现了质的飞跃.然而,涉密电子信息集中管控系统对电子文件的在线编辑必须依赖本地第三方软件,存在失泄密的隐患.提出一种... 从涉密电子信息分散存储在用户的电脑、手机或移动存储,到采用涉密电子信息集中管控系统来集中管控涉密电子信息,体现了质的飞跃.然而,涉密电子信息集中管控系统对电子文件的在线编辑必须依赖本地第三方软件,存在失泄密的隐患.提出一种基于RemoteApp的安全在线编辑方法,从根本上巩固了电子信息在编辑环节的安全性. 展开更多
关键词 电子信息集中管控 在线编辑 RDP协议 remoteApp
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Smart Photogrammetric and Remote Sensing Image Processing for Very High Resolution Optical Images——Examples from the CRC-AGIP Lab at UNB 被引量:6
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作者 Yun ZHANG 《Journal of Geodesy and Geoinformation Science》 2019年第2期17-26,共10页
This paper introduces some of the image processing techniques developed in the Canada Research Chair in Advanced Geomatics Image Processing Laboratory (CRC-AGIP Lab) and in the Department of Geodesy and Geomatics Engi... This paper introduces some of the image processing techniques developed in the Canada Research Chair in Advanced Geomatics Image Processing Laboratory (CRC-AGIP Lab) and in the Department of Geodesy and Geomatics Engineering (GGE) at the University of New Brunswick (UNB), Canada. The techniques were developed by innovatively/“smartly” utilizing the characteristics of the available very high resolution optical remote sensing images to solve important problems or create new applications in photogrammetry and remote sensing. The techniques to be introduced are: automated image fusion (UNB-PanSharp), satellite image online mapping, street view technology, moving vehicle detection using single set satellite imagery, supervised image segmentation, image matching in smooth areas, and change detection using images from different viewing angles. Because of their broad application potential, some of the techniques have made a global impact, and some have demonstrated the potential for a global impact. 展开更多
关键词 remote sensing optical IMAGE very high resolution pan-sharpening online mapping STREET view moving information DETECTION IMAGE segmentation IMAGE MATCHING change DETECTION
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Customized Online Aggregation &Summarization Tool for Environmental Rasters (COASTER)
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作者 Daniel J. Weiss Katie Gibson +2 位作者 Charles Sojka Jennifer W. Sheldon Robert L. Crabtree 《Journal of Geographic Information System》 2012年第6期530-541,共12页
The Customized Online Aggregation & Summarization Tool for Environmental Rasters (COASTER) system (www.COASTERdata.net) was developed by Yellowstone Ecological Research Center (YERC) (www.yellowstoneresearch.org) ... The Customized Online Aggregation & Summarization Tool for Environmental Rasters (COASTER) system (www.COASTERdata.net) was developed by Yellowstone Ecological Research Center (YERC) (www.yellowstoneresearch.org) in response to the information needs of end-user communities interested in decision-support for natural resource management. The purpose of COASTER is to greatly simplify the process of creating predictor datasets for research exploring environmental impacts driven by climate change, land-use activities, disturbance, and invasive spread. COASTER achieves this goal by providing users with a web-based system for processing environmental (gridded, raster) datasets, using a set of standardized functions, to create output customized to meet their analytical needs. In doing so, COASTER effectively translates large and cumbersome datasets into user-specified information useful for parameterizing statistical models and for visualizing spatial and temporal patterns within environmental datasets. The COASTER system currently contains over 10 terabytes of climate data from several sources. These datasets have daily temporal resolutions, spatial resolutions ranging from 1km to 330km, and temporal extents ranging from 30 to 64 years (1948-2011). COASTER datasets are primarily limited to North America, but gridded datasets from other regions can easily be added to the system. Variables within the climatic datasets available on COASTER include metrics quantifying temperature, precipitation, shortwave radiation, vapor pressure deficit, humidity, and wind conditions. Notable features of COASTER include a conceptually simple yet flexible set of functions capable of producing a wide range of outputs, a design applicable to many types of raster datasets, and results formatted for seamless integration within most GIS and remote sensing software packages. 展开更多
关键词 GEOGRAPHIC Information RETRIEVAL online Application remote GEOGRAPHIC Data Processing
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An Effective Online Collaborative Training in Developing Listening Comprehension Skills
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作者 Shakeel Ahmed Munazza Ambreen +3 位作者 Muneer Ahmad Abdulellah A.Alaboudi Roobaea Alroobaea NZ Jhanjhi 《Computer Systems Science & Engineering》 SCIE EI 2021年第8期131-140,共10页
The COVID-19 outbreak severely affected formal face-to-face classroom teaching and learning.ICT-based online education and training can be a useful measure during the pandemic.In the Pakistani educational context,the ... The COVID-19 outbreak severely affected formal face-to-face classroom teaching and learning.ICT-based online education and training can be a useful measure during the pandemic.In the Pakistani educational context,the use of ICT-based online training is generally sporadic and often unavailable,especially for developing English-language instructors’listening comprehension skills.The major factors affecting availability include insufficient IT resources and infrastructure,a lack of proper online training for speech and listening,instructors with inadequate academic backgrounds,and an unfavorable environment for ICT-based training for listening comprehension.This study evaluated the effectiveness of ICT-based training for developing secondary-level English-language instructors’listening comprehension skills.To this end,collaborative online training was undertaken using random sampling.Specifically,60 private-school instructors in Chakwal District,Pakistan,were randomly selected to receive online-listening training sessions using English dialogs.The experimental group achieved significant scores in the posttest analysis.Specifically,there were substantial improvements in the participants’listening skills via online training.Given the unavailability of face-to-face learning during COVID-19,this study recommends using ICT-based online training to enhance listening comprehension skills.Education policymakers should revise curricula based on online teaching methods and modules. 展开更多
关键词 COVID-19 online training remote teaching computers in education listening comprehension English language
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Challenges to Online Criminal Litigation in the Context of Smart Justice and Responses——Focusing on the Protection of the Right to Defense
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作者 ZHENG Weiwei YAN Jiaqi SHEN Jinjun 《The Journal of Human Rights》 2024年第4期853-875,共23页
Online criminal litigation transcends the constraints of physical time and space and changes the logic and path of trial hearings for some criminal cases with the help of technology.However,the leapfrog shift from the... Online criminal litigation transcends the constraints of physical time and space and changes the logic and path of trial hearings for some criminal cases with the help of technology.However,the leapfrog shift from the“physical field”to the“virtual field”has brought great challenges to the effective exercise of the defendant's right to defense.Online criminal justice further highlights the imbalance in the relationship between prosecution and defense in the context of smart justice,and proposes a new topic for protecting the human rights of the prosecuted.The introduction of online criminal litigation in judicial practice is intended to achieve justice in a faster and more convenient way.However,the dissipation of the ritualized remote hearings tends to undermine the effectiveness of the defense and impair the defense's ability to cross-examine evidence,while the technically advantageous public authorities can aggravate the barrier to the defense's meeting and reading the case file.The root cause is that technological power instrumentalism overemphasizes pragmatism and the pursuit of truth under the position of authority,thus diluting humanistic care for the subject of litigation.In order to resolve the problem with the quality and effectiveness of the right to defense in remote hearings,it is necessary to transform online criminal litigation from a“practical technical tool”to a“convenient auxiliary method,”and appropriately weigh the limits of pursuing truth against human rights protection in special scenarios.Meanwhile,it is also feasible to provide technical care for the defense and strengthen its ability to cross-examine evidence.Moreover,a covert communication platform should be furnished for the defender's online meeting to actively strengthen the protection of the defendant's right to defense. 展开更多
关键词 online criminal litigation smart justice right to defense remote hearings human rights
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Development of Online Based Smart House Renting Web Application
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作者 Dipta Voumick Prince Deb +1 位作者 Sourav Sutradhar Mohammad Monirujjaman Khan 《Journal of Software Engineering and Applications》 2021年第7期312-328,共17页
The house rental issue is one of the elemental parts of society. Nowadays, it is extremely difficult to find suitable accommodation in city areas if people search for it physically. On the other hand, the land owner a... The house rental issue is one of the elemental parts of society. Nowadays, it is extremely difficult to find suitable accommodation in city areas if people search for it physically. On the other hand, the land owner also needs to rent the house. It can be difficult to find tenants just to hang a lease sign on a building, and as a result, they lose money. An online common platform can play a vital role in this case. The purpose of the study is to develop a common web-based online platform for both tenants and house owners so that both tenants and landowners will mutually benefit from the system. This paper presents the development of web applications for the people of Bangladesh where both house owners and tenants can register and tenants can have houses for rent via sophisticated contact with the house owner. In this paper, a common online-based smart house rental web application has been developed both for tenants and for house owners. This web application is very user-friendly, efficient and it has got many unique features that are not offered by other currently available house rental websites here in Bangladesh. Tenants can register using their phone number, store information about their identity, search for available houses, send messages to house owners, and choose a suitable house using developed web applications. House owners can also register for the system, which will manually verify and authenticate the knowledge provided by the house owner can view a tenant’s information history whenever a tenant makes contact through text and supply house-related information accordingly. The proposed online smart house system has been tested and validated. It works very efficiently with many features. The application provided faster and improved opportunities to get houses, as well as ensuring the availability of houses for rent in the greatest number of areas. The system will help to spread trustworthy services nationwide and supply users with the chance to speak and improve the house rent in Bangladesh. Because it has many smart features, this developed online smart house rental web application will make it very easy for tenants to find a house to rent. House owners, on the other hand, can easily rent out their properties. 展开更多
关键词 Web Application online Platform House Renting SMART SECURITY Advertise Network remote Interaction
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多传感信息融合下的煤矿钻机状态远程在线监测研究
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作者 王德伟 张灿明 《煤矿机械》 2026年第1期213-219,共7页
针对煤矿井下钻机状态监测中存在的多源传感器数据时空失配、噪声干扰强、故障特征微弱等问题,提出了一种基于多传感信息融合的远程在线监测系统。在硬件层面,设计以ATMEGA128L低功耗微处理器为核心的嵌入式采集节点,集成振动、温度、... 针对煤矿井下钻机状态监测中存在的多源传感器数据时空失配、噪声干扰强、故障特征微弱等问题,提出了一种基于多传感信息融合的远程在线监测系统。在硬件层面,设计以ATMEGA128L低功耗微处理器为核心的嵌入式采集节点,集成振动、温度、转速等多种传感器,通过LoRa与工业以太网实现数据可靠回传;在软件层面,提出时序对齐与一阶加权滑动平均去噪方法,解决数据异步与噪声耦合问题;进一步提取峰值、均值、均方根、波形指标与峭度等多维时域特征,并引入轻量化熵权融合机制,实现对轴承点蚀、齿轮断齿等隐性故障的敏感识别;最后,采用改进的集成学习算法,在边缘侧完成钻机运行状态的实时诊断。现场应用结果表明,该系统一致性指数稳定在0.9~1.0,可识别正常、异常、维修、故障4类状态,平均响应延迟低于200 ms,为煤矿钻机预测性维护提供了可部署、高可靠的一体化解决方案。 展开更多
关键词 钻机 多传感信息融合 嵌入式系统 熵权特征融合 集成学习 远程在线监测
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移动医疗服务在新生儿黄疸居家监测中的应用
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作者 刘潋滟 陈牡花 +2 位作者 王沛 朱竺 吴倩 《护理实践与研究》 2026年第2期310-316,共7页
目的探讨基于移动医疗的新生儿护理线上咨询服务在新生儿黄疸居家监测中的应用效果。方法选取2024年1—6月本院新生儿科建档的足月新生儿150例及其父母150名作为研究对象,按照组间基线资料均衡可比的原则将患儿分为观察组及对照组,每组7... 目的探讨基于移动医疗的新生儿护理线上咨询服务在新生儿黄疸居家监测中的应用效果。方法选取2024年1—6月本院新生儿科建档的足月新生儿150例及其父母150名作为研究对象,按照组间基线资料均衡可比的原则将患儿分为观察组及对照组,每组75例。对照组采用传统的黄疸监测和护理措施,观察组在此基础上增加了移动医疗的线上咨询服务。比较两组新生儿父母角色转换情况、养育照顾能力、新生儿高胆红素血症及胆红素脑病发生率、新生儿的智能发育情况。结果干预后,观察组新生儿父亲或母亲适应评分、养育照顾评分及新生儿神经行为测定(NBNA)量表评分高于对照组,差异有统计学意义(P<0.05);观察组新生儿高胆红素血症及胆红素脑病发生率低于对照组,差异有统计学意义(P<0.05)。结论基于移动医疗的新生儿护理线上咨询服务能有效改善新生儿父母角色转换情况,提升新生儿父母照顾能力,有效降低新生儿高胆红素血症及胆红素脑病发生率,有助于新生儿智能发育,在新生儿黄疸居家监测中具有良好的应用价值。 展开更多
关键词 移动医疗 新生儿护理 线上咨询 新生儿黄疸 居家监测 远程护理
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基于机器学习的油浸式变压器故障智能诊断技术研究
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作者 李勇 《机械管理开发》 2026年第1期89-90,128,共3页
针对油浸式变压器传统故障诊断方法存在劳动强度大、诊断过程风险较高、诊断结果误差较大等问题,对油浸式变压器故障诊断技术进行研究,在分析了油浸式变压器常见故障类型和特征的基础上,采用机器学习技术和改进后的IBWOA算法实现对油浸... 针对油浸式变压器传统故障诊断方法存在劳动强度大、诊断过程风险较高、诊断结果误差较大等问题,对油浸式变压器故障诊断技术进行研究,在分析了油浸式变压器常见故障类型和特征的基础上,采用机器学习技术和改进后的IBWOA算法实现对油浸式变压器故障在线智能诊断,提高设备异常识别速度。经过在某钢厂3号油浸式变压器现场安装和应用后表明,基于机器学习技术的变压器故障智能诊断系统可实现对变压器机组电压和电流的在线监控,有效避免由工人现场排除故障,大大提高故障诊断效率,且异常发生后响应时间仅为0.35 s,故障识别准确率高达98.65%,取得了满意的应用效果。 展开更多
关键词 机器学习 油浸式变压器 故障诊断 在线监控 远程运维
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远程智能实验系统在电工电子教学中的应用 被引量:2
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作者 张林丽 余翔宇 李磊 《电气技术》 2025年第5期58-62,71,共6页
将在线教育理念和技术应用于实验教学,对远程智能在线实物实验技术进行研究和探索,建设了远程智能实验系统,实现智能软硬件系统与电子电路实验教学的深度融合,并应用于电子电路相关实验课程。探讨了传统线下实验教学的特点和存在的问题... 将在线教育理念和技术应用于实验教学,对远程智能在线实物实验技术进行研究和探索,建设了远程智能实验系统,实现智能软硬件系统与电子电路实验教学的深度融合,并应用于电子电路相关实验课程。探讨了传统线下实验教学的特点和存在的问题,分析了远程智能实验系统应用于实验教学的优势。实践表明,远程智能实验系统打破了高校传统实验教学的时空和资源限制,能为学生提供更加灵活、便捷的实验体验,在提高学生自主学习能力和创新能力方面发挥了重要作用。 展开更多
关键词 工程实践 远程实验系统 电工电子实验教学 在线实验
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融合工程教育专业认证思想的线上线下混合BOPPPS教学模式探索与建设
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作者 张圣微 李昊 +2 位作者 史小红 高瑞忠 张晓晶 《高教学刊》 2025年第16期42-45,共4页
面向工程教育专业认证以学生为中心的标准和要求,为适应新时期信息技术的发展和应对诸如疫情等突发状况,该文以水文遥感课程为研究对象,开展线上线下混合式教学模式课程体系探讨和建设。通过对BOPPPS各个环节及其线上线下设计和建设,形... 面向工程教育专业认证以学生为中心的标准和要求,为适应新时期信息技术的发展和应对诸如疫情等突发状况,该文以水文遥感课程为研究对象,开展线上线下混合式教学模式课程体系探讨和建设。通过对BOPPPS各个环节及其线上线下设计和建设,形成融合工程教育要求和线上线下优势的水文遥感课程教学体系,该体系可以有效提高学生参与度和自主学习能力,同时也有利于教师对课程授课效果和学生主动性的实时把握,可总体上提高教学效果,为新形势下的课程教学模式建设提供参考。 展开更多
关键词 水文遥感课程 线上线下混合式教学 BOPPPS教学模式 课程建设 工程教育认证
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基于在线平台的高校武术队课程远程指导与反馈机制研究
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作者 庄静 《当代体育科技》 2025年第7期67-70,共4页
该文探讨了在线教学平台在武术训练课程中的应用效果。该文首先分析了当前武术队训练的现状与需求,随后研究并总结了在线平台具备的灵活性、资源多样性以及个性化反馈机制等优势。在此基础上,提出了一种远程指导与反馈机制,旨在解决线... 该文探讨了在线教学平台在武术训练课程中的应用效果。该文首先分析了当前武术队训练的现状与需求,随后研究并总结了在线平台具备的灵活性、资源多样性以及个性化反馈机制等优势。在此基础上,提出了一种远程指导与反馈机制,旨在解决线上实操互动不足的问题。研究结果表明,在线教学平台的应用不仅显著提升了武术教学的质量,还为学生提供了更大的学习自主性和灵活性。展望未来,随着新技术如虚拟现实(VR)、增强现实(AR)的引入以及智能化平台的进一步优化,将进一步推动在线武术教学的发展,实现线上线下教学的有机结合,为武术教育的可持续发展注入新的活力。 展开更多
关键词 在线教学平台 武术训练课程 远程指导 反馈机制 武术教育
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基于星上实时数据的卫星任务在线决策技术
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作者 王港 徐崇彦 +2 位作者 赵玉春 柴英特 张超 《指挥与控制学报》 北大核心 2025年第6期688-695,共8页
针对未来遥感卫星自主能力强、在轨协同任务多的需求,分析了在轨自主决策问题产生的机制和智能化模型的能力,建立了星地协同在轨任务决策的流程机制,设计了星上任务在线决策学习方法,通过设计卫星决策任务强化学习回报函数,明确强化学... 针对未来遥感卫星自主能力强、在轨协同任务多的需求,分析了在轨自主决策问题产生的机制和智能化模型的能力,建立了星地协同在轨任务决策的流程机制,设计了星上任务在线决策学习方法,通过设计卫星决策任务强化学习回报函数,明确强化学习中收益值,通过设计实现基于深度Q-网络的卫星智能任务需求决策过程,获得可以用于星上自主决策的决策列表。实验结果表明,在12种规则的情况下,任务属性配置准确率均达到80%以上。将深度强化学习应用于任务规划与资源分配,从而实现遥感卫星协同观测、任务协同、信息引导等卫星综合利用能力,也对进一步拓展强化学习理论和方法的应用领域具有重要的理论价值。 展开更多
关键词 遥感卫星 在轨自主 任务规划 强化学习 在线决策 深度Q 网络 任务生成
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生成对抗学习式半监督遥感影像生成网络地图方法
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作者 伍江江 宋洁琼 +5 位作者 田纪龙 陈浩 沙志超 李军 彭双 杜春 《国防科技大学学报》 北大核心 2025年第3期128-140,共13页
针对现有全监督学习获取精确配对样本耗费资源问题,同时兼顾网络地图生成质量,提出了一种新颖的基于生成对抗网络的半监督网络地图生成模型,旨在利用少量精确配对的数据和大量非配对数据,实现智能化遥感影像直接生成网络地图。此外,设... 针对现有全监督学习获取精确配对样本耗费资源问题,同时兼顾网络地图生成质量,提出了一种新颖的基于生成对抗网络的半监督网络地图生成模型,旨在利用少量精确配对的数据和大量非配对数据,实现智能化遥感影像直接生成网络地图。此外,设计了一种基于变换一致性正则化和样本增强一致性的半监督学习策略,克服了非精确配对数据带来的不一致性问题,同时能获得更好的模型泛化性能。对不同地图数据集进行了充分的对比实验,模型生成的网络地图在定量指标和视觉质量上优于比较方法,验证了半监督网络地图生成方法的有效性和快速性。 展开更多
关键词 网络地图生成 生成对抗网络 遥感影像 半监督学习 一致性正则化
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