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Application of extension neural network to safety status pattern recognition of coalmines 被引量:6
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作者 周玉 W.Pedrycz 钱旭 《Journal of Central South University》 SCIE EI CAS 2011年第3期633-641,共9页
In order to accurately and quickly identify the safety status pattern of coalmines,a new safety status pattern recognition method based on the extension neural network (ENN) was proposed,and the design of structure of... In order to accurately and quickly identify the safety status pattern of coalmines,a new safety status pattern recognition method based on the extension neural network (ENN) was proposed,and the design of structure of network,the rationale of recognition algorithm and the performance of proposed method were discussed in detail.The safety status pattern recognition problem of coalmines can be regard as a classification problem whose features are defined in a range,so using the ENN is most appropriate for this problem.The ENN-based recognition method can use a novel extension distance to measure the similarity between the object to be recognized and the class centers.To demonstrate the effectiveness of the proposed method,a real-world application on the geological safety status pattern recognition of coalmines was tested.Comparative experiments with existing method and other traditional ANN-based methods were conducted.The experimental results show that the proposed ENN-based recognition method can identify the safety status pattern of coalmines accurately with shorter learning time and simpler structure.The experimental results also confirm that the proposed method has a better performance in recognition accuracy,generalization ability and fault-tolerant ability,which are very useful in recognizing the safety status pattern in the process of coal production. 展开更多
关键词 safety status pattern recognition extension neural network coal mines
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Dataset of human motion status using IR-UWB through-wall radar 被引量:3
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作者 ZHU Zhengliang YANG Degui +1 位作者 ZHANG Junchao TONG Feng 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2021年第5期1083-1096,共14页
Ultra-wideband(UWB)through-wall radar has a wide range of applications in non-contact human information detection and monitoring.With the integration of machine learning technology,its potential prospects include the ... Ultra-wideband(UWB)through-wall radar has a wide range of applications in non-contact human information detection and monitoring.With the integration of machine learning technology,its potential prospects include the physiological monitoring of patients in the hospital environment and the daily monitoring at home.Although many target detection methods of UWB through-wall radar based on machine learning have been proposed,there is a lack of an opensource dataset to evaluate the performance of the algorithm.This published dataset is measured by impulse radio UWB(IR-UWB)through-wall radar system.Three test subjects are measured in different environments and several defined motion status.Using the presented dataset,we propose a human-motion-status recognition method using a convolutional neural network(CNN),and the detailed dataset partition method and the recognition process flow are given.On the well-trained network,the recognition accuracy of testing data for three kinds of motion status is higher than 99.7%.The dataset presented in this paper considers a simple environment.Therefore,we call on all organizations in the UWB radar field to cooperate to build opensource datasets to further promote the development of UWB through-wall radar. 展开更多
关键词 impulse radio ultra-wideband(IR-UWB) through-wall radar human motion status DATASET convolutional neural network(CNN)
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基于相关分析和神经网络的激光焊接稳态识别 被引量:6
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作者 黄威威 游德勇 +2 位作者 高向东 张艳喜 黄宇辉 《激光技术》 CAS CSCD 北大核心 2022年第3期312-319,共8页
为了准确识别激光焊接的稳态类型,采用了图像处理、相关分析和神经网络的方法,增加对准稳态的研究,以信号特征的相关系数作为神经网络模型的输入,进行了理论分析和实验验证,得出了光学、视觉信号的相关性对激光焊接稳态类型的影响规律... 为了准确识别激光焊接的稳态类型,采用了图像处理、相关分析和神经网络的方法,增加对准稳态的研究,以信号特征的相关系数作为神经网络模型的输入,进行了理论分析和实验验证,得出了光学、视觉信号的相关性对激光焊接稳态类型的影响规律。结果表明,匙孔面积和金属蒸汽面积的相关性区分稳态类型的效果最好,其相关系数为0.2~0.3时为稳态,0.4~0.5时为准稳态,0.6~0.7时为非稳态;训练完成的神经网络模型在测试集上达到了98.76%的预测准确率,可满足准确识别焊缝稳态类型的需求。该研究为自动化生产中预防出现激光焊接缺陷提供了参考。 展开更多
关键词 激光技术 稳态识别 相关分析 神经网络 图像处理
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论新媒体环境下网络社会管理的“四位一体”模式 被引量:4
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作者 张晓月 《山东大学学报(哲学社会科学版)》 CSSCI 北大核心 2016年第4期81-88,共8页
新媒体发展给网络社会管理既带来机遇,也带来严峻挑战。目前,我国网络主权的维护方面还不适应新媒体发展带来的"网络无国界"的冲击;新媒体监管体制和机制相对滞后,不适应新媒体快速发展要求;保护网民的合法权利的法律、法规... 新媒体发展给网络社会管理既带来机遇,也带来严峻挑战。目前,我国网络主权的维护方面还不适应新媒体发展带来的"网络无国界"的冲击;新媒体监管体制和机制相对滞后,不适应新媒体快速发展要求;保护网民的合法权利的法律、法规缺失。基于此,我们应该建立"四位一体"的网络社会管理模式:政府对外要积极争取网络社会管理话语权,对内要契合新媒体时代特征,成为"善治"政府;网络媒体要基于职业使命承担起信息传输、管理职责;互联网企业要基于企业社会责任发挥辅助监督、管理功能;网络用户要基于公民意识,成为自我约束者和公共精神的建构者。以此构建起一个自足的网络社会管理体系,成就安全、稳定、可靠、有序的网络社会。 展开更多
关键词 新媒体 网络社会管理 “四位一体”模式
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