检索结果-内蒙古大学图书馆

19th IFAC World Congress on International Federation of Automatic control, IFAC 2014

作者： Wang, Tao Liu, Zhong Cui, Kainan Zhang, Jie Wang, Fei-Yue Philip Chen, C.L. College of Information System and Management National University of Defense Technology Changsha410073 China State Key Laboratory of Management and Control for Complex Systems Chinese Academy of Sciences Beijing100190 China Research Center for Computational Experiments and Parallel Systems Technology National University of Defense Technology Changsha410073 China Department of Computer and Information Science Science and Technology University of Macau China

ISBN: (纸本)9783902823625

Cyber Movement Organization (CMO) is a special kind of social movement organization on the Web. In this paper, we propose a model to simulate the mobilizing process of CMO, which consists of the individual unit, organization unit, and the mobilizing mechanisms. The mobilizing mechanisms has three sub-mechanisms: the participation mechanism, the choice mechanism, and the inviting mechanism. A dataset of more than two million "human flesh search" related microblogs is used to validate the model. Empirical results show that our model can capture the key features of the real-world mobilizing process. © IFAC.

关键词： Automation

来源：评论

学校读者我要写书评

暂无评论

On stability analysis and synthesis of reset control systems with output uncertainties

On stability analysis and synthesis of reset control systems...

引用

第三十三届中国控制会议

作者： Guanglei Zhao Jingcheng Wang Kang Li Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China School of Electronics Electrical Engineering and Computer ScienceQueens University BelfastUK

ISBN: (纸本)9781479947249

This paper considers reset control systems with output *** present sufficient conditions for the quadratic stability and finite L2 gain ***,the results are extended to piecewise quadratic stability which is much less ***,an iterative algorithm is proposed to design the reset *** the obtained results are given as linear matrix inequalities(LMIs) that can be solved *** examples are given to illustrate the results.

关键词： reset control output uncertainties quadratic stability iterative algorithm

来源：评论

学校读者我要写书评

暂无评论

Real-coded genetic algorithm with oriented evolution towards promising region for parameter optimization

引用

computer Modelling and New Technologies 2014年第12期18卷 93-101页

作者： Chen, Zhiqiang Yun, Jiang Chen, Xudong School of Computer Science and Information Engineering 125 Chongqing Technology and Business University Chongqing China Chongqing Engineering Laboratory for Detection Control and Integrated System 19 Xuefu Avenue Nan'an Chongqing China

In this paper, a novel real-coded genetic algorithm is presented to generate offspring towards a promising polygon field with k+1 vertex, which represents a set of promising points in the entire population at a particular generation. A set of 19 test problems available in the global parameter optimization literature is used to test the performance of the proposed real-coded genetic algorithms. Several performance comparisons with five significant real-coded genetic algorithms, three state-of-the-art differential evolution algorithms and three others significant evolutionary computing techniques are performed. The comparative study shows the proposed approach is statistically significantly better than or at least comparable to twelve significant evolutionary computing techniques over a test suite of 19 benchmark functions.

关键词： Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

Distributed MPC for Tracking based on Reference Trajectories

Distributed MPC for Tracking based on Reference Trajectories

引用

第三十三届中国控制会议

作者： Langwen Zhang Jingcheng Wang Zhengfeng Liu Kang Li Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China School of Electronics Electrical Engineering and Computer Science Queen's University Belfast

ISBN: (纸本)9781479947249

In this paper, we consider the control of large-scale processes with both input and state couplings. A distributed model predictive control(MPC) strategy for tracking based on the reference trajectories is presented. The proposed distributed MPC strategy requires decomposing a large-scale system into several smaller ones and solving convex optimization problems independently. Distributed MPC tracking strategies for unconstrained and constrained processes are presented, respectively. An iterative algorithm is presented to coordinate the distributed MPC controllers. The proposed algorithm is applied to a four-tank process to demonstrate the effectiveness.

关键词： distributed MPC tracking iterative algorithm reference trajectories

来源：评论

学校读者我要写书评

暂无评论

Adaptively secure key-policy ABE scheme with fast decryption

引用

Tongxin Xuebao/Journal on Communications 2014年 35卷 26-32页

作者： Li, Qi Ma, Jian-Feng Xiong, Jin-Bo Liu, Xi-Meng School of Computer Science and Technology Xidian University Xi'an710071 China Shaanxi Key Laboratory of Network and System Security Xidian University Xi'an710071 China Science and Technology on Communication Information Security Control Laboratory Jiaxing314033 China Faculty of Software Fujian Normal University Fuzhou350108 China School of Telecommunication Engineering Xidian University Xi'an710071 China

In the existing adaptively secure ABE (attribute-based encryption) schemes, the decryption cost goes linearly with the number of attributes that are used in decryption. An adaptively secure key-policy ABE (FKP-ABE) scheme with fast decryption is proposed, where constant size of computation overhead is implemented in decryption. This scheme is constructed on composite order bilinear groups and supports any monotonic access structure that can be expressed by LSSS (linear secret sharing schemes). The proposed scheme is proved to be adaptively secure in the standard model. ©, 2014, Editorial Board of Journal on Communications. All right reserved.

关键词： Cryptography

来源：评论

学校读者我要写书评

暂无评论

A unified framework for optimality analysis of model predictive control

A unified framework for optimality analysis of model predict...

引用

World Congress on Intelligent control and Automation (WCICA)

作者： Xin Cai Shaoyuan Li Ning Li Kang Li Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Shanghai P.R. China Electrical Engineering and Computer Science Queen's University Belfast Belfast UK

As well-known, model predictive control is closely related to optimal control. This paper studies relationships between them and provides a unified framework for optimality analysis of model predictive controllers (MPC). The optimality is evaluated by comparing total performance of MPC with finite and infinite horizon optimal cost. Based on relaxed value iteration method, upper and lower bounds of optimality evaluation functions are expressed explicitly in terms of optimization horizon. These results reveal detailed characteristics on performance of closed-loop MPC systems due to using “receding horizon optimization” implementation style.

关键词： Optimal control Nonlinear systems Cost function Predictive control Predictive models

来源：评论

学校读者我要写书评

暂无评论

Robust consensus of second-order multi-agent systems with nonuniform time-delays and switching topologies

Robust consensus of second-order multi-agent systems with no...

引用

International Conference on Methods and Models in Automation and Robotics (MMAR)

作者： Wenguang Zhang Deliang Zeng Yuguang Niu Taihua Chang Beijing Key Laboratory of Measurement & Control North China Electric Power University Beijing China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing China School of Control and Computer Engineering North China Electric Power University Beijing China

ISBN: (纸本)9781479938926

This paper studies the robust consensus problem for second-order multi-agent systems with nonuniform time-delays and switching topologies in the presence of external disturbances, where each agent has a self-delay and each delay is independent of each other. A neighbor-based rule is used for the agents with nonuniform time-delays and external disturbances. A sufficient condition is derived under which all agents achieve consensus while satisfying desired H ∞ performance. Finally, the effectiveness of the obtained theoretical results is demonstrated through numerical simulations.

关键词： Delays Multi-agent systems Trajectory Topology Switches Network topology Symmetric matrices

来源：评论

学校读者我要写书评

暂无评论

Sensor fault detection and estimation for heat exchanger using Unscented Kalman Filter

Sensor fault detection and estimation for heat exchanger usi...

引用

IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Jianhua Zhang Yannan Chen Jing Xiong Luyao Zhang Guolian Hou State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing China School of Control and Computer Engineering North China Electric Power University Beijing China

The main objective of this paper is to describe the application of Unscented Kalman Filter (UKF) estimation algorithm to the problem of fault detection and estimation of the sensor failures in the heat exchanger systems. The proposed fault detection is based on innovation sequence implementing UKF which is used to generate residuals when a sensor fault is presented. By evaluating the generated residual, it is possible to see if any problems of sensor have occurred. And the estimated state and decision function are built; the indication of sensor malfunction is achieved by UKF, so makes it possible for us to see where the fault is. Experiments in a heat exchanger have demonstrated the power of this method. The proposed algorithm has evident advantages such as less computation, easy programming, easy application and generalization and so on.

关键词： Kalman filters Estimation Fault detection Heating Vectors Noise Heat transfer

来源：评论

学校读者我要写书评

暂无评论

Multi-objective optimal temperature control for Organic Rankine Cycle systems

Multi-objective optimal temperature control for Organic Rank...

引用

World Congress on Intelligent control and Automation (WCICA)

作者： Jianhua Zhang Mifeng Ren Jing Xiong Mingming Lin State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing China School of Control and Computer Engineering North China Electric Power University Beijing China

The Organic Rankine Cycle (ORC) has attracted a lot of interests for its ability to recover low-grade heat and the possibility to be implemented in decentralized low-capacity power plants. In this paper, a new optimal temperature control method is proposed for ORC systems with non-Gaussian disturbances which influence the quality of exhaust gas. The objective here is to control the speed of the pump so that the superheated vapor temperature follows a target one. It means that the error between those two temperatures is minimized both in magnitude and randomness, which are characterized by mean value and entropy, respectively. Therefore, the proposed control strategy is regarded as a multi-objective optimization problem. To solve this problem, a Multi-Objective Estimation of Distribution Algorithm (MOEDA) is adopted to obtain all the possible optimal control inputs. Simulation results show the effectiveness of the proposed technique.

关键词： Fluids Entropy Estimation Waste heat Linear programming Heating

来源：评论

学校读者我要写书评

暂无评论

Fault classification of waste heat recovery system based on support vector machine

Fault classification of waste heat recovery system based on ...

引用

IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Jianhua Zhang Jia Meng Rui Wang Guolian Hou State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing China School of Control and Computer Engineering North China Electric Power University Beijing China

ISBN: (纸本)9781479943142

In this paper, the fault classification problem for waste heat recovery system based on support vector machine (SVM) is investigated. Firstly, two-class SVM classification algorithm is reviewed. Then the model and six kinds of faults in waste heat recovery systems (WHRSs) are briefly described. In order to effectively isolate these faults in WHRSs, key features are extracted using principal component analysis (PCA), the multi-class classification problem is then decomposed into five two-class classifiers by using improved one-against-rest approach. Consequently, the SVM classifiers are designed to train and test samples by using collected process variables. The comparison between SVM and back-propagation neural networks applied to a WHRS is discussed. Simulation results demonstrate that SVM can obtain better fault diagnosis performance.

关键词： Support vector machines Fault diagnosis Accuracy Principal component analysis Neural networks Heat recovery Waste heat

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：