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作者： Chen, Michael Z. Q. Zhang, Liangyin Su, Housheng Chen, Guanrong Department of Mechanical Engineering University of Hong Kong Pokfulam Hong Kong Hong Kong School of Automation Image Processing and Intelligent Control Key Laboratory of Education Ministry of China Huazhong University of Science and Technology Wuhan430074 China Department of Electronic Engineering City University of Hong Kong KowloonHKG Hong Kong

This technical note deals with a modified algebraic Riccati equation (MARE) and its corresponding inequality and difference equation, which arise in modified optimal control and filtering problems and are introduced into the cooperative control problems recently. The stabilizing property of the solution to MARE is presented. Then, the uniqueness is proved for the almost stabilizing and positive semi-definite solution. Next, the parameter dependence of MARE is analyzed. An obtained parameter dependence result is finally applied to the study of semi-global synchronization of leader-following networks with discrete-time linear dynamics subject to actuator saturation. © 1963-2012 IEEE.

关键词： Riccati equations

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A new twin support vector machine for pattern recognition

A new twin support vector machine for pattern recognition

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International Congress on Image and Signal processing, BioMedical Engineering and Informatics (CISP-BMEI)

作者： Xiaoming Liu Ting Zhu Leilei Zhai Hubei Province Key Laboratory of Intelligent Information Processing and Real-time Industrial System Wuhan China College of Computer Science and Technology Wuhan University of Science and technology Wuhan China

ISBN: (纸本)9781509037117

A new nonparallel twin support vector machine is presented in this article which combine l 2,1 -norm minimizing on both loss function and regularization which called (TWSVM_21). Our TWSVM_21 is formulated aiming to separate class more efficiently. Different from other nonparallel classifier, such as the presented TBSVM, the classifier we proposed in this paper joint l 2,1 -norm. Experiments on DDSM datasets show the feasibility and effectiveness of our TWSVM_21.

关键词： Support vector machines Feature extraction Cancer Standards Geometry Delta-sigma modulation Robustness

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Sparsity-constrained probabilistic latent semantic analysis for land cover classification

Sparsity-constrained probabilistic latent semantic analysis ...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Jun Shi Xilan Tian Zhiguo Jiang Danpei Zhao Ming Lu No. 38 Research Institute China Electronic Technology Group Corporation Hefei Anhui China Key Laboratory of Intelligent Information Processing Hefei Anhui China Beijing Key Laboratory of Digital Media Beijing China Image Processing Center Beihang University Beijing China

Land cover classification can be regarded as topic assignment that the pixels can be classified into different kinds of regions (e.g. road, tree, grass) according to the semantics of topics in topic model. In this paper, we present a novel probabilistic latent semantic analysis (pLSA) model based on sparsity constraint for classifying different kinds of land cover. In contrast with conventional topic model which usually assumes each local feature descriptor is only related to one visual word of the dictionary, our method uses sparse coding to characterize the potential relationship between the descriptor and multiple words. Therefore each descriptor can be represented by a small set of words. More importantly, we further apply sparse coding to mine the correlation of documents (i.e. image) in pLSA model. Consequently, our model can generate the more discriminative latent topics and benefit land cover classification. Experimental results on high-resolution remote sensing images demonstrate the excellent superiority of our method.

关键词： Semantics Correlation Remote sensing Probabilistic logic Dictionaries Roads Image color analysis

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The Device Design of a Rural Domestic Sewage Treatment Performance

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IOP Conference Series: Materials Science and Engineering 2017年第1期250卷

作者： Zuhan Liu Lili Wang Chengzhi Deng Jiangxi Province Key Laboratory for Water Information Cooperative Sensing and Intelligent Processing Nanchang Institute of Technology Nanchang Jiangxi 330099 China School of Science Nanchang Institute of Technology Nanchang Jiangxi 330099 China

A kind of device for removing pollutant from rural domestic sewage isstudied in this paper, which belongs to the field of sewage treatment technology. The device include anaerobic pool, aerobiotic pool and aerating apparatus. Specifically, the aerobiotic pool is a sealed rectangular body with a rectangular groove on its top cover. The fixed wall is established on one side of the rectangular groove, and the wall is located in the middle of the top cover. The anaerobic pool is opposite to the fixed wall. And there is a aerating apparatusbetween the anaerobic pool and fixed wall, and the apparatus is situated right above the rectangular groove. The design is simple in structure and low in manufacturing cost. The biochemical ratio to the sewage could be improved through the anaerobic pool, and then the sewage is sufficiently aerated by means of natural ventilation and height of water. Theaerated sewage enter into aerobiotic pool, and then the organic matter is degraded into Carbon Dioxide and water under the action of aerobic bacteria, of which function is that the ammonia nitrogen is oxidized into nitrate and nitrite. The water that is far from the aerating apparatus inside of the aerobiotic pool enters into oxygen-deficient environment, and the nitrate is converted into nitrogen. After the effluent is checked qualified, the water is discharged into the drainage ditch or utilized for irrigation.

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Robust reliable guaranteed cost control of positive interval systems with multiple time delays and actuator failure

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International Journal of Systems Science 2016年第4期47卷 946-955页

作者： Zhang, Ji-Shi Wang, Yan-Wu Xiao, Jiang-Wen Chen, Yang School of Automation Huazhong University of Science and Technology Wuhan China School of Software Henan University Kaifeng China Key Laboratory of Image Processing and Intelligent Control Education Ministry of China Wuhan China

This paper addresses the robust reliable guaranteed cost control problem of positive interval systems with multiple time delays and actuator failure for a given quadratic cost function. Through constructing a Lyapunov-Krasovskii functional, a sufficient condition for the existence of robust reliable guaranteed cost controllers is established such that the closed-loop system is positive and asymptotically stable, and the cost function is guaranteed to be no more than a certain upper bound. Based on the linear matrix inequality method, a criterion for the design of robust reliable guaranteed cost controllers is derived which can tolerate all admissible uncertainties as well as actuator failure. Moreover, a convex optimisation problem with linear matrix inequality constraints is formulated to design the optimal robust reliable guaranteed cost controller which minimises the upper bound of the closed-loop system cost. A numerical example is given to show the effectiveness of the proposed methods. © 2014 Taylor & Francis.

关键词： Closed loop systems

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Nonnegative Edge Consensus of Networked Linear Systems

Nonnegative Edge Consensus of Networked Linear Systems

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第35届中国控制会议

作者： Xiaoling Wang Housheng Su Xiaofan Wang Guanrong Chen Department of Automation Shanghai Jiaotong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China School of Automation Image Processing and Intelligent Control Key Laboratory of Education Ministry of ChinaHuazhong University of Science and Technology Department of Electronic Engineering City University of Hong Kong

ISBN: (纸本)9781509009107

In this paper,nonnegative edge consensus of systems steered by general linear dynamics on directed network is *** the new approach,one first endows dynamics to each directed edge and then designs a distributed edge consensus protocol guiding all edges to reach a common *** the help of line graph theory,it is proved that strongly connected network can ensure reaching nonnegative edge consensus,if the initial conditions of all edges are *** simulations are provided to verify the theoretical results.

关键词： Networked system Nonnegative edge consensus Distributed algorithm Line graph

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Ranking Node Influence in Social Networks

Ranking Node Influence in Social Networks

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International Symposium on Parallel and Distributed Computing

作者： Zheyi Chen Yuli Liu Weiping Zhu Department of Computer Science National Laboratory for Information Science and Technology Beijing China College of Mathematics and Computer Science Fujian Provincial Key Laboratory of Networking Computing and Intelligent Information Processing Fuzhou China

ISBN: (纸本)9781509041534

In the study of social networks, analyzing node influence and identifying influential nodes in social networks is of great theoretical and practical significance. To effectively evaluate node influence, a novel concept of influence label is introduced, which can measure node influence through two label attributes called influence level and node degree. Then, a novel influence model called LDM (Level and Degree Model) is proposed. LDM updates the influence label of each node iteratively by the quality of neighbors and the number of neighbors. A gain function that conforms to power-law distribution is also introduced to further optimize the accuracy of LDM. In the experiment part, to prove the effectiveness of LDM, LDM is compared with other typical methods by employing IC model to simulate the information diffusion process on four real-world social networks. Experimental results show that LDM can rank node influence more accurately than other methods.

关键词： social networking (online) CYP51A1 gene LDM Social Networks Line of nodes Social Capital

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An overview of coordinated control for multi-agent systems subject to input saturation

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Perspectives in Science 2016年 7卷 133-139页

作者： Xiaoling Wang Housheng Su Xiaofan Wang Guanrong Chen Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China School of Automation Image Processing and Intelligent Control Key Laboratory of Education Ministry of China Huazhong University of Science and Technology Wuhan 430074 China Department of Electronic Engineering City University of Hong Kong Hong Kong China

Coordinated control of multi-agent systems has widespread application in engineering such as unmanned aerial vehicles and unmanned ground vehicles. Due to the fact that input saturation can lead a control system to deterioration and instability, a lot of efforts have been devoted to investigating this subject of great importance. The present article offers a survey of recent developments on coordinated control of multi-agents systems subject to input saturation. Some preliminaries about graph theory, stability theory and input saturation are first provided, followed by some important results in the area, which are categorized into semi-global and global coordinated controls. Future research topics are finally discussed.

关键词： Multi-agent system Coordinated control Consensus tracking Input saturation Low-and-high-gain feedback

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Parallel hybrid genetic algorithm for maximum clique problem on OpenCL

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Journal of Computational and Theoretical Nanoscience 2016年第6期13卷 3595-3600页

作者： Li, Li Zhang, Kai Yang, Siman He, Juanjuan School of Computer Science Wuhan University of Science and Technology Wuhan Hubei430081 China Hubei Province Key Laboratory of Intelligent Information Processing and Real-Time Industrial System Wuhan Hubei430081 China

The maximum clique problem is to find the maximum sized clique of pairwise adjacent vertices in a given graph, which is a NP-Complete problem. In this paper, an effective parallel hybrid genetic algorithm is proposed, which consists of genetic algorithm and a local optimization strategy for solving maximum clique problem. In this algorithm, selection, crossover, mutation, fitness evaluation and replacement operators are implemented parallel on OpenCL. In addition, we have tested our algorithm by using a set of benchmark instances from the DIMACS graphs. The comparison results shows that the implementation on GPU provide better performance that CPU, even when the benchmark graphs become more large and complicate. Copyright © 2016 American Scientific Publishers. All rights reserved.

关键词： Genetic algorithms

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Circuit tolerance design by differential evolution with hybrid analysis method

Circuit tolerance design by differential evolution with hybr...

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International Workshop on Advanced Computational Intelligence (IWACI)

作者： Fugui Zhong Bin Li Bo Yuan CAS Key Laboratory of Technology in Geo-spatial Information Processing and Application Systems University of Science and Technology of China Hefei China CAS Key Laboratory of Technology in Geo-spatial Information Processing and Application Systems USTC-Birmingham Joint Research Institute in Intelligent Computation and Its Applications (UBRI) University of Science and Technology of China Hefei China USTC-Birmingham Joint Research Institute in Intelligent Computation and Its Applications (UBRI) University of Science and Technology of China Hefei China

With the continued scaling down of electronic device dimensions, circuit design under parameter variations has received increasing interests. In this paper, a new method that combine the differential evolution with hybrid analysis method is presented to solve the worst-case circuit tolerance design problem. The hybrid analysis method is comprised of two commonly used worst-case circuit tolerance analysis approaches, vertex analysis and Monte Carlo analysis. The search direction of differential evolution is leaded by vertex analysis at the first stage, through which we can reduce the computational complexity of fitness calculation dramatically. Monte Carlo analysis, a higher accuracy analysis method, is applied to ensure the quality of the solutions at the second stage. Some of the individuals are reinitialized to enhance the diversity of the population at the beginning of the second stage. By cooperating the two analysis methods, the proposed method can converge to the global optimum or near-optimum solutions more quickly. The experiment results show the effectiveness and efficiency of proposed techniques for the circuit tolerance design.

关键词： Monte Carlo methods Algorithm design and analysis Sociology Uncertainty Upper bound Computational efficiency

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