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夏元清

自动化学院

职称:教授

夏元清所有成果
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发明人:邹伟东,夏元清,李慧芳,张金会,翟弟华,戴荔,刘坤,闫莉萍

申请日期:2022.08.30

摘要:本发明公开了一种基于循环迭代最小二乘的极限学习机的图像识别方法,利用卷积运算随机提取图像特征与利用循环迭代最小二乘求取隐含层节点的输出权值矩阵,实现对极限学习机模型的训练,能够在降低计算负担过重和提高计算效率的情况下提高算法的泛化性能,在一定程度上能够满足图像识别的需要,同时为更准确地进行图像识别提 ...

发明人:邹伟东,李钰祥,夏元清,李慧芳,张金会,翟弟华,戴荔,刘坤,闫莉萍

申请日期:2022.10.14

摘要:本发明公开了一种基于F范数矩阵乘法的对称加密方法,通过计算密码矩阵的行向量和译码矩阵的列向量的F范数,实现了加密相关矩阵的相乘,从而缩短了加密过程中矩阵乘法运算所花费的计算时间,提高了对称加密方法的效率,同时也为更快速地进行矩阵相乘提供了新思路和新途径。

发明人:李慧芳,王彬阳,黄姜杭,王一竹,黄经纬,邹伟东,柴森春,夏元清

申请日期:2021.01.08

摘要:本发明公开了一种基于联合强化学习策略的多目标云工作流调度方法,通过对工作流请求和云资源的属性和方法进行扩展建立了强化学习agent联合策略模型,使调度模型更加贴合实际的工作流应用场景,在行为选择时综合考虑调度进程、各决策子网络以及历史决策信息的影响,使得最终选择的行为更为合理,进一步提升了算法产生非 ...

发明人:李慧芳,王丹敬,黄姜杭,王一竹,徐光浩,邹伟东,柴森春,夏元清

申请日期:2021.01.08

摘要:本发明公开了云环境下基于多种群混合智能优化的多工作流调度方法,通过利用两个种群分别优化多工作流调度方案的总执行时间和成本两个目标,同时,采用第三个种群,对两个目标的优化进行适当平衡,通过三个种群侧重于搜索不同类型的非主导解,提高了精英解的多样性,有效克服了现有智能优化方法搜索随机性大的缺点,能够在满 ...

作者:Hongjiu Yang;Yuanqing Xia;Peng Shi & Mengyin Fu (1Department of Automatic Control, Beijing Institute of Technology, Beijing, 100081, China;2Department of Computing and Mathematical Sciences, University of Glamorgan, Pontypridd, CF37 1DL, UK;3School of Engineering and Science, Victoria University, Melbourne, 8001 VIC, Australia;4Faculty of Automation, Harbin University of Science and Technology, Harbin, China)

出处:Circuits, Systems, and Signal Processing 2012

关键词:Delta operator systems;Networked control systems;Robust stability;Markovian jump parameters;Mode-dependent delays;Linear matrix inequalities (LMIs)

摘要:This paper investigates the problem of stability for a class of linear uncertain Markovian jump systems over networks via the delta operator approach. ...

作者:Hongjiu Yang1;1;Yuanqing Xia1;CA2,3;Peng Shi2,3;41Department of Automatic Control, Beijing Institute of Technology, Beijing 100081, China;2Department of Computing and Mathematical Sciences, University of Glamorgan, UK;3School of Engineering and Science, Victoria University, Melbourne, VIC8001, Australia)

出处:Journal of the Franklin Institute 2010

关键词:Sliding mode observer;Sliding mode controller;Delta operator system;Robust stability;Linear matrix inequality (LMI)

摘要:In this paper, an observer-based sliding mode control (SMC) problem is investigated for a class of uncertain delta operator systems with nonlinear exo ...

作者:Yuanqing Xia;Hongjiu Yang;Mengyin Fu & Peng Shi (1Department of Automatic Control, Beijing Institute of Technology, Beijing, 100081, China;2Faculty of Advanced Technology, University of Glamorgan, Pontypridd, CF37 1DL, UK;3School of Engineering and Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia)

出处:Circuits, Systems, and Signal Processing 2011

关键词:Sliding mode control;Input-state delay;Delay-dependent stability;Linear matrix inequality

摘要:This paper deals with a sliding mode control for linear systems with input and state time-varying delays. Two different time delays are considered for ...

作者:Bo Liu;Yuanqing Xia;Magdi S. Mahmoud;Harris Wu & Shisheng Cui (1Department of Automatic Control, Beijing Institute of Technology, Beijing, 100086, China;2Systems Engineering Department, King Fahd University of Petroleum and Minerals, PO Box 5067, Dhahran, 31261, Saudi Arabia;3College of Business and Public Administration, Old Dominion University, Norfolk, VA, 23529, USA;4Computer Science Department, Stanford University, Stanford, CA, 94305, USA)

出处:Circuits, Systems, and Signal Processing 2012

关键词:Model Predictive Control;Circuit Syst Signal;Inverted Pendulum;Network Control System;Feedback Channel

摘要:This paper is concerned with the design of networked control systems with random network-induced delay and data dropout. It presents a new control sch ...

作者:Chunming Wang;Yuanqing Xia;Mengyin Fu;Zheng Zhu

出处:2011 IEEE 5th International Conference on Cybernetics and Intelligent Systems (CIS) 2011

关键词:Torque;Mathematical model;Servomotors;Robustness;Observers;Transfer functions

摘要:The problem of position tracking for a tank gun control system with inertia uncertainty and external disturbance is investigated in this paper. The ta ...

作者:Runze Gao;Qiwen Li;Li Dai;Yufeng Zhan;Yuanqing Xia (1School of Automation, Beijing Institute of Technology, Beijing, China)

出处:IEEE Transactions on Automation Science and Engineering 2023

关键词:Cloud computing;Collaboration;Task analysis;Control systems;Delay effects;Uncertainty;Containers

摘要:Data-driven predictive control (DPC) has been studied and applied in various scenarios. However, the challenge of computational efficiency remains. Wi ...