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A Novel Fusion Strategy for E-MAP Missing Value Imputation

IFAC Proceedings Volumes 2011年第1期44卷 6178-6183页

作者： Xiao-Yong Pan Ye Tian Li-Xiu Yao Hong-Bin Shen Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 School of Aerospace and Astronautic Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China

Abstract Epistatic miniarray profiling (E-MAP) is powerful for measuring gene biological relevance. However, E-MAP suffers from large number of missing values, and in order to use the E-MAP information more efficiently, the missing values have to be estimated. In this paper, considering advantages and disadvantages of different independent algorithms, we proposed a novel fusion approach based on the high-level diversity to estimate missing values that consists of two global and four local base estimators. Experiment results show our fusion scheme is more effective and robust for the missing value imputations and outperforms all single base algorithms on E-MAP data.

关键词： Missing value estimation E-MAP Ensemble estimator

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Robust ℋ∞ horizon optimization control for sampled-data systems with constraints

Robust ℋ∞ horizon optimization control for sampled-data sy...

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Chinese control Conference (CCC)

作者： Fuchun Liu Hailong Pei Yueying Zhao Min Li College of Automation Science and Engineering the Key Laboratory of Autonomous Systems and Networked Control (ASNC) Ministry of Education South China University of Technology Guangzhou 510640 China Department of Automation Guangzhou Kangda Vocational Technical College 511363 China School of Electronic Information and Control Engineering Shandong Polytechnic University Jinan 250353 China

In this paper, the problem of designing of robust state-feedback H ∞ controller for uncertain sampled-data control systems with output constraints have been investigated base on jump system model of sampled-data system using constant Lyapunov function (CLF) approach. The online algorithm of the H ∞ receding horizon optimization design for the norm-bounded parametric uncertain system is proposed. The optimal state-feedback H ∞ controllers are obtained and these controller can provide a performance tradeoff with respect to output constraints, i.e., the control strategy offers the capability of relaxing the performance level automatically in order to obey output constraints in the case of a larger disturbance. When the disturbance is restored to a usual situation, this control strategy can also improve the performance of system automatically.

关键词： electronic mail Robustness control systems Predictive models Modeling Optimization Predictive control

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Delay-independent stabilization of linear systems with multiple time-delays

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World Academy of Science, engineering and Technology 2011年 51卷 1007-1011页

作者： He, Ping Lan, Heng-You Tan, Gong-Quan School of Automation and Electronic Information Sichuan University of Science and Engineering Zigong Sichuan 643000 China Department of Mathematics Sichuan University of Science and Engineering Zigong Sichuan 643000 China Research Institute of Information and Control Sichuan University of Science and Engineering Zigong Sichuan 643000 China

The multidelays linear control systems described by difference differential equations are often studied in modern control theory. In this paper, the delay-independent stabilization algebraic criteria and the theorem of delay-independent stabilization for linear systems with multiple time-delays are established by using the Lyapunov functional and the Riccati algebra matrix equation in the matrix theory. An illustrative example and the simulation result, show that the approach to linear systems with multiple time-delays is effective.

关键词： Matrix algebra

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The Kalman Filtering for a class of Local Strongly Coupled systems

The Kalman Filtering for a class of Local Strongly Coupled S...

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2011 China control and Decision Conference(2011中国控制与决策会议 CCDC)

作者： Yunze Cai Hua O. Wang Xiaoming Xu Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Inform Department of Mechanical Engineering Boston University Boston MA 02215 USA Department of Automation Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 P.R.Chi

This paper addresses a Kalman filtering problem for a class of local strongly coupled systems which are derived from complex systems with inter communication or constraint between nodes. To start with, a multi-agent system is introduced and the communication matrix is characterized by employing random series with Bernoulli distributions. Using augmentation techniques and stochastic methods, the Kalman filtering algorithm is deducted. The experimental results not only demonstrate the effectiveness of the proposed filtering method, but also show the inter-agent communication could improve the tracing effect in the multi-agent collaborative systems.

关键词： Local strongly coupled systems Kalman filter Communication

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Sample size analysis of GPS probe vehicles for urban traffic state estimation

Sample size analysis of GPS probe vehicles for urban traffic...

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International Conference on Intelligent Transportation

作者： Qiankun Zhao Qing-Jie Kong Yingjie Xia Yuncai Liu Department of Automation and Key Laboratory of China MOE for System Control and Information Processing Shanghai Jiao Tong University Shanghai China Hangzhou Institute of Service Engineering Hangzhou Normal University Hangzhou China

Nowadays, probe vehicles equipped with Global Position system (GPS) are an effective way of collecting real-time traffic information. This paper first briefly introduces the Curve-Fitting Estimation Model (CFEM), which is one of the typical methods using GPS data to estimate the traffic flow state. After that, it is detailedly analyzed how many probe vehicles the CFEM requires in order to ensure enough estimated accuracy. Furthermore, a sample size algorithm is developed to calculate the minimum sample size of the CFEM. In the algorithm, the road type, the length of road section, and sample frequency are taken into account. Finally, the proposed algorithm of sample size analysis are tested by the experiments using the data collected from the road network of the whole center region of Shanghai.

关键词： Vehicles Probes Global Positioning system Roads State estimation Computational modeling

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Subspace identification using the saturation measurement in data-driven control systems

Subspace identification using the saturation measurement in ...

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Asian control Conference

作者： Yongling Wu Shaoyuan Li Hua Yang Department of Automation Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiaotong University Shanghai China College of Information Science and Engineering Ocean University of China Qingdao Shandong China

ISBN: (纸本)9781612844879

Saturation characteristic exists widely in the real system, and a large number of articles have taken constraint conditions into account during the controller design process. However, relative to the research on the input (actuator) saturation, study on the output (sensor) saturation has not been taken seriously and research results are very little, especially in the aspect of effect on the identification due to the saturation output. In this paper, under the data-driven control system based on online subspace identification and model predictive control (MPC) method, the relationship among the output saturation step, prediction horizon and subspace matrix is obtained, while the change of the system information is unknown because the output signals are locked. Finally, a simulation example is given to demonstrate the correction of the conclusion.

关键词： Predictive models Matrix decomposition Mathematical model Predictive control Actuators

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Diamond Nanopit Arrays Fabricated by Room-Temperature Nanoimprinting using Diamond Molds

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MRS Online Proceedings Library 2011年第1期1282卷 117-122页

作者： Shuji Kiyohara Masaya Kumagai Yoshio Taguchi Yoshinari Sugiyama Yukiko Omata Yuichi Kurashima Hirofumi Takikawa Advanced Faculty of Electric and Control System Engineering Course Maizuru National College of Technology Maizuru Japan Application and Technical Section ELIONIX INC. 3-7-6 Motoyokoyama Hachioji Tokyo Japan Department of Mechanical System Engineering University of Yamanashi 4-3-11 Takeda Kofu Yamanashi Japan Department of Electrical and Electronic Information Engineering Toyohashi University of Technology Toyohashi Aichi Japan

We have investigated the nanopatterning of chemical vapor deposited (CVD) diamond films in room-temperature nanoimprint lithography (RT-NIL), using a diamond nanodot mold. We have proposed the use of polysiloxane as an electron beam (EB) mask and RT-imprint resist materials. The diamond molds of cylinder dot using the RT-NIL process were fabricated with polysiloxane oxide mask in EB lithography technology. The dot in minimum diameter is 500 nm. The pitch between the dots is 2 μm, and dot has a height of about 600 nm. It was found that the optimum imprinting conditions for the RT-NIL : time from spin-coating to imprinting t1 of 1 min , pressure time t2 of 5 min, imprinting pressure P of 0.5 MPa. The imprint depth obtained after the press under their conditions was 500 nm. We carried out the RT-NIL process for the fabrication of diamond nanopit arrays, using the diamond nanodot molds that we developed. The resulting diamond nanopit arrays with 500 nm-diameter and 200 nm-depth after the electron cyclotron resonance (ECR) oxygen ion beam etching were fabricated. The diameter of diamond nanopit arrays was in good agreement with that of the diamond nanodot mold.

关键词： diamond ion-beam processing nanoscale

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Robust filtering for networked systems with random transmission delays and packet dropouts

Robust filtering for networked systems with random transmiss...

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作者： Cai, Yunze Wang, Hua O. Tanaka, Kazuo Xu, Xiaoming Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing 800 Dongchuan Rd. Shanghai 200240 China Department of Mechanical Engineering Boston University Boston MA 02215 United States Department of Mechanical Systems and Intelligent Systems University of Electro-Communications Tokyo 182-8585 Japan Department of Automation Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai 200240 China University of Shanghai for Science and Technology 16 Jun Gong Rd. Shanghai 200093 China

ISBN: (纸本)9781457700804

This paper addresses a robust H∞ filtering problem for networked systems that are subject to both random transmission delays and packet dropouts. To start with, a data transmission model is established by employing random series with Bernoulli distributions. A sufficient condition for robust stability with H∞ constraints is derived for the filtering error system. The robust filter is designed in terms of the feasibility of a linear matrix inequality (LMI). The numerical examples are provided to show the effectiveness of the data transmission model and the proposed filtering method. © 2011 AACC American Automatic control Council.

关键词： Linear matrix inequalities

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A novel type of trigonometric neural network trained by Extended Kalman Filter

A novel type of trigonometric neural network trained by Exte...

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International Workshop on Advanced Computational Intelligence (IWACI)

作者： M. Norouzi M. Mansouri M. Teshnehlab M. Aliyari Shoorehdeli Faculty of Engineering Department of Computer Engineering Science and Research Branch Islamic Azad University Iran Intelligent System Laboratory (ISLAB) Faculty of Electrical Engineering Control Department K.N. Toosi University of Technology Tehran Iran Faculty of Electrical Engineering Department of Mechatronics Engineering Advanced Process Automation &Control Laboratory (APAC) K.N. Toosi University of Technology Tehran Iran

In this study, a new type of trigonometric neural network is presented by adding frequency and phase to trigonometric activation functions. The proposed trigonometric neural network has more flexibility in comparison with conventional trigonometric neural networks and even other types of neural networks. Due to the low convergence rate and high posibility of trapping in a local minimum of backpropagation algorithm, Extended Kalman Filter algorithm is used to train the neural network's parameters which they appear in a nonlinear form. The Simulation of the suggested neural network based on the prediction of Mackey-Glass time series and identification of a nonlinear dynamic ystem reveals the efficiency of the proposed network. To show the efficiency of this method, the results are compared with the results of the others.

关键词： Biological neural networks Kalman filters Equations Neurons Vectors Covariance matrix Mathematical model

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Dynamic experimental study on leachate treatment by process integration

Dynamic experimental study on leachate treatment by process ...

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2nd Annual Conference on Electrical and control engineering, ICECE 2011

作者： Wang, Min Gao, Hui Key Laboratory of Urban Stormwater System and Water Environment Ministry of Education Beijing China Department of Power Engineering School of Mechanical and Electronic Control Ngineering Beijing Jiaotong University Beijing China

ISBN: (纸本)9781424481637

In view of the actual processing conditions of leachate treatment of the Inner Mongolia's municipal solid wastes plant, the paper studies new leachate treatment process integration, in order to reduce cost, improve leachate's overall biodegradability, remove high concentration organic contaminants and ammonia-N. The experiment device of the process integration include: electro-coagulation H2O2 process, plain sedimentation process, activated sludge process and catalytic electrolysis process, and the COD and NH3-N concentration of the effluent of plain sedimentation and catalytic electrolysis at different times are monitored. According to the dynamic experiments, it was concluded that the designed process integration is feasible to treat the leachate of the Inner Mongolia's municipal solid wastes plant. The COD and NH3-N concentration of the effluent of the process integration is 30mg/L, 25mg/L respectively, under the concentration limit of the Solid Waste Landfill Pollution control Standard. The total operating cost of the process integration was 5.531 yuan/t, including energy consumption, iron consumption, pharmacy dosing expenses, electrode fee was not included. © 2011 IEEE.

关键词： Leachate treatment

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