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International Symposium on Intelligent Systems and Informatics (SISY)

作者： Ferenc Szauter György Istenes Gábor Rödönyi Széchenyi István University Research Center of Vehicle Industry Gyór Hungary Systems and Control Laboratory Computer and Automation Research Institute of Hungarian Academy of Sciences

There is an ever increasing demand for intelligent and efficient urban vehicle systems that fulfill several requirements, e.g., low cost maintainability and high passenger comfort. Concerning these goals reliable methods are needed to model and to evaluate the imposed performances. In this paper a spectral analysis of the suspension system of a commercial city bus is presented. Based on experimental data taken on a city bus, the vibrations emerging on the wheels and the body are analyzed in the frequency domain. The goal of the analysis is to characterize the main eigenfrequencies of the suspension system and its damping in amplitude and also to evaluate both the road and the suspension system in terms of passenger comfort according to ISO standards.

关键词： Acceleration Suspensions Vehicles Roads Spectral analysis Urban areas Frequency measurement

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Robust Stabilization of Input Constrained Uncertain Systems with Nonhomogeneous Markov Switching

Robust Stabilization of Input Constrained Uncertain Systems ...

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第28届中国控制与决策会议

作者： Yanyan Yin Zongli Lin Ministry of Education Key Laboratory of Advanced Process Control for Light Industry Institute of AutomationJiangnan University Charles L.Brown Department of Electrical and Computer Engineering University of Virginia

ISBN: (纸本)9781467397155

This paper addresses the problem of robust stabilization for uncertain systems subject to input saturation and nonhomogeneous Markov *** uncertainties are assumed to be norm bounded and the transition probabilities are time-varying and *** expressing the saturated linear feedback law on a convex hull of a group of auxiliary linear feedback laws and the time-varying transition probabilities inside a polytope,we establish conditions under which the closed-loop system is asymptotically *** on these conditions,the problem of designing the state feedback gains for achieving fast transience response with a guaranteed size of the domain of attraction is formulated and solved as a constrained optimization problem with linear matrix inequality(LMI) *** results are then illustrated by a numerical example.

关键词： Robust stabilization actuator saturation Markov jumps time-varying transition probabilities uncertainties

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Action of a femtosecond laser pulse on thin metal film supported by glass substrate

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Journal of Physics: Conference Series 2018年第1期1128卷

作者： V V Shepelev N A Inogamov S V Fortova P A Danilov S I Kudryashov A A Kuchmizhak O B Vitrik Institute for Computer-Aided Design of the Russian Academy of Sciences 19/18 Vtoraya Brestskaya St. Moscow 123056 Russia Landau Institute for Theoretical Physics of the Russian Academy of Sciences 1a Akademika Semenova Avenue Chernogolovka Moscow Region 142432 Russia Dukhov Research Institute of Automatics (VNIIA) 22 Sushchevskaya Moscow 127055 Russia Lebedev Physical Institute of the Russian Academy of Sciences 53 Leninsky Avenue Moscow 119991 Russia Institute of Automation and Control Processes of the Far Eastern Branch of the Russian Academy of Sciences 5 Radio St. Vladivostok Primorsky Krai 690041 Russia School of Natural Sciences Far Eastern Federal University 8 Sukhanova St. Vladivostok Primorsky Krai 690041 Russia

Numerous papers are devoted to the problem of irradiating thin films on the substrate for surface nano-modification. But all of them concern the dynamics of the dynamics, paying almost no attention to substrate just as object of the first shockwave absorption. A different point of view with an emphasis on the dynamics of a substrate is presented. Under powerful laser action upon a thin metal film a hole arises. Its radius depends on the absorbed laser energy. Experimental results, quantitative theoretical model and numerical research are presented and show that the hole formation is influenced by propagation of the shock wave in the substrate, but not in the film itself. Four stages are considered. (i) Shockwave generation in a support because of an impact of a contact. (ii) Transition from one-dimensional to two-dimensional propagation of the shockwave. (iii) Lateral propagation of the shockwave along a film-support contact. And (iv) calculating pressure in the compressed layer behind the decaying shockwave. This positive pressure acting from substrate on the film accelerates the film in direction to vacuum. Above some threshold, velocity of accelerated film is enough to separate the film from support. In these cases the circle of separation is significantly wider than the focal laser spot on film surface.

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P-94:Distinguished Student Poster: Three Dimensional Lenticular Display Rendering Based on Light Field Acquisition

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SID Symposium Digest of Technical Papers 2017年第1期48卷

作者： Renjing Pei Zheng Geng Kui Ma Zhang Mei Wang Rong State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences East Zhongguanchun Road No. 95 Haidian District Beijing 100190 China School of Computer and Control Engineering University of Chinese Academy of Sciences Beijing 101408 China

Crosstalk is a critical defect affecting quality in 3D displays. Existing methods require tedious computations or device-specific optical measurements and results are often sub-optimal for 3D productions. We propose a method based on light field acquisition and optimization for crosstalk reduction. Algorithms were developed and experimental results showed superior performance.

关键词： lenticular 3D display crosstalk optimization light field light field capture

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Reducing the Modeling Error by Observer Based PID Regulators for a Class of Factorable Nonlinear Plants

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IFAC-PapersOnLine 2015年第11 11期48卷 662-667页

作者： Keviczky, L. Bányász, Cs. Institute of Computer Science and Automation MTA-BME Control Engineering Research Group Hungarian Academy of Sciences H-1111 Budapest Kende u 13-17 Hungary

A PID regulator tuning method is introduced for HAMMERSTEIN and WIENER type block-oriented cascade factorable nonlinear models. Then the YOULA-parameterization approach is discussed which allows to develop an observer... 详细信息

关键词： Proportional control systems Parameterization Hammerstein model Nonlinear process observer PID regulators YOULA regulator

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Introduction to Collaboration Systems and Technology Track

Introduction to Collaboration Systems and Technology Track

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Annual Hawaii International Conference on System Sciences (HICSS)

作者： Jay F. Nunamaker Robert O. Briggs Institute of Automation and Computer Control Ruhr-Universität Bochum Germany Optical Communications Research Group University of Northumbria at Newcastle United Kingdom of Great Britain Nonlinear Control Group University of Northumbria at Newcastle United Kingdom of Great Britain

ISBN: (纸本)9781509019816

Summary form only given, as follows. Teams and organizations collaborate to create value that cannot be created through individual effort. Collaboration, however, engenders complex economic, interpersonal, social, political, cognitive, emotional, physical, and technological challenges. Groups can improve key outcomes using collaboration technologies, but any technology that can be used well can also be used badly; good tools do not assure successful collaboration. The value of a collaboration technology can only be realized in the larger context of a collaboration system, a combination of actors, hardware, software, knowledge, and work practices to advance groups toward their goals. Designers of collaboration systems must therefore address many issues when creating a new collaboration system. This track seeks new work from researchers in many disciplines to foster a growing a body of exploratory, theoretical, experimental, and applied science/engineering research that could inform design and deployment of collaboration systems. We seek papers that address individual, group, organizational, and social factors that affect outcomes of interest among people making joint efforts toward a group goal. Collaboration is too complex to be fully understood from a single perspectives. The track therefore seeks to foster broader understandings with a diversity of approaches. We solicit papers from the full range of epistemological, methodological, and ethical approaches.

关键词： Collaboration Organizations Economics Context Hardware Software Social factors

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Dual-Tone Radio Interferometric Positioning Systems for Multi-Target Localization Using a Single Mobile Anchor

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China Communications 2015年第1期12卷 25-35页

作者： LI Li'an WANG Yiyin MA Xiaoli CHEN Cailian GUAN Xinping Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China School of Electrical & Computer Engineering Georgia Institute of Technology

In this paper, a low-cost dualtone radio interferometric positioning system using a single mobile anchor is proposed to locate multiple targets at the same time. We name it mDRIPS. In mDRIPS, each target continuously transmits a dual-tone signal with its dedicated frequencies, and the mobile anchor receives the signals at different positions along its trajectory, Neither time synchronization between the mobile anchor and the targets nor time synchronization among the targets is required. We take the instability of targets clocks into consideration and develop an ESPRIT-type algorithm to estimate frequencies of each dual-tone signal. Furthermore, the time of arrival （TOA） of each target signal is extracted from the phase estimates of the received dual-tone signals. After measuring several TOAs at different locations along the anchor＇s trajectory, each target can be located. Since the frequency difference of the two tones of each dualtone signal is designed to be smaller than the channel coherence bandwidth, the same fading effect on these two tones can be eliminated. Moreover, the integer ambiguity problem due to phase wrapping is investigated, and a localization algorithm to deal with a simplified ambiguity problem is proposed. Numerical results demonstrate the efficiency of the proposed mDRIPS.

关键词： ranging localization mobile anchor radio interferometry oscillator instability

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New words enlightened sentiment analysis in social media

New words enlightened sentiment analysis in social media

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IEEE International Conference on Intelligence and Security Informatics, ISI

作者： Chiyu Cai Linjing Li Daniel Zeng Chinese Academy of Sciences Institute of Automation Beijing China School of Computer and Control Engineerina University of Chinese Academy of Sciences China Department of Management Information Systems University of Arizona Tucson AZ USA

ISBN: (纸本)9781509038664

Public sentiment permeated through social media is usually regarded as an important measure for hot event detecting, policy making and so forth, hence many governments and intelligence agencies have been launching various initiatives to facilitate theories, technologies and systems toward monitoring its fluctuation. Recently, massive new words are created and widely spread in social media, and they pose a great influence on sentiment analysis. Facing this situation, most previous work still just add those new words into sentiment lexicon, none of the existed researches focuses on the role and influence of new words in emotional expression. In this paper, we pay more attention to the influence of new words and propose two novel new words based sentiment analysis methods, named NWLb and NWSA, the former only with the help of lexicon and the latter further incorporates machine learning, which utilize the distinctive role of new words to improve the effectiveness of sentiment analysis in social media. Experiments on real social media dataset demonstrate the effectiveness and performance of our methods.

关键词： Sentiment analysis Learning systems Twitter Computational modeling Analytical models Support vector machines

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Special Issue on Unsupervised Feature Learning for Vision

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IET computer VISION 2015年第5期9卷 627-628页

作者： Zhang, Shengping Zhang, Baochang Ye, Qixiang School of Computer Science and Technology Harbin Institute of Technology Weihai China Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical Engineering Beihang University Beijing China Institute of Advanced Computer Studies (UMIACS) University of Maryland College Park United States

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Event-based state estimation of discrete-state hidden Markov models

Event-based state estimation of discrete-state hidden Markov...

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作者： Shi, Dawei Elliott, Robert J. Chen, Tongwen State Key Laboratory of Intelligent Control and Decision of Complex Systems School of Automation Beijing Institute of Technology Beijing100081 China School of Mathematical Sciences University of Adelaide SA5005 Australia Haskayne School of Business University of Calgary CalgaryAB Canada Department of Electrical and Computer Engineering University of Alberta EdmontonABT6G 1H9 Canada

The state estimation problem for hidden Markov models subject to event-based sensor measurement updates is considered in this work, using the change of probability approach. We assume the measurement updates are transmitted through wired or wireless communication networks. For the scenarios with reliable and unreliable communication channels, analytical expressions for the probability distributions of the states conditioned on all the past point- and set-valued measurement information are obtained. Also, we show that the scenario with a lossy channel, but without the event-trigger, can be treated as a special case of the reliable channel results. Based on these results, closed-form expressions for the estimated communication rates under the original probability measure are presented, which are shown to be the ratio between a weighted 1-norm and the 1-norm of the unnormalized conditional probability distributions of the states under the new probability measures constructed. Implementation issues are discussed, and the effectiveness of the results is illustrated by numerical examples and comparative simulations. © 2015 Elsevier Ltd. All rights reserved.

关键词： Hidden Markov models

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