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作者： Barth, Alexander Reichhartinger, Markus Reger, Johann Horn, Martin Wulff, Kai Computer Science and Automation Department Technische Universität Ilmenau Ilmenau98684 Germany Faculty of Electrical and Information Engineering Graz University of Technology Graz8010 Austria

In this article, a Lyapunov-based control concept is presented combining variable structure and adaptive control. The considered system class comprises single-input systems which are affected by structured and unstructured uncertainties. The design is based on a Lyapunov function for the super-twisting algorithm. This Lyapunov function is exploited to derive the adaptive part of the proposed controller using the certainty equivalence principle. It is demonstrated that this combination of sliding-mode and adaptive control methodology allows to relax the boundedness condition known from the super-twisting algorithm while reducing the sliding-mode gain significantly. The effectiveness of the presented concept is demonstrated in detail, using results from numerical simulations and experimental data of a laboratory testbed. © 2015

关键词： Robust control

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Array P systems with parallel rewriting and tables of context-free rules

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Journal of Computational and Theoretical Nanoscience 2016年第6期13卷 3636-3642页

作者： Pan, Linqiang Song, Bosheng Isawasan, Pradeep Subramanian, K.G. School of Electric and Information Engineering Zhengzhou University of Light Industry Zhengzhou Henan450002 China Key Laboratory of Image Information Processing and Intelligent Control School of Automation Huazhong University of Science and Technology Wuhan Hubei430074 China 32 Jalan Anson Penang10400 Malaysia Department of Mathematics and Computer Science Faculty of Science Liverpool Hope University LiverpoolL16 9JD United Kingdom

The two areas of picture languages and membrane computing were linked by array-rewriting P system in which array objects and context-free array-rewriting rules are used in order to generate picture languages. While rewriting arrays in the array-rewriting P system is in a sequential manner, parallel array P system (PAP) involves rewriting of arrays in the regions in parallel in order to generate picture languages. A variant of PAP, known as tabled array P system (TPAP), uses sets of context-free array-rewriting rules, called tables of rules. Generative power of TPAP in comparison with PAP and certain other kinds of picture array generating mechanisms are investigated. Copyright © 2016 American Scientific Publishers. All rights reserved.

关键词： Context free languages

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Solar flare prediction by SVM integrated CBGA with dynamic mutation rate

Solar flare prediction by SVM integrated CBGA with dynamic m...

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Proceedings of the Biannual World automation Congress

作者： Yukiko Yamamoto Daichi Itoh Setsuo Tsuruta Takayuki Muranushi Yuko Hada-Muranushi Syoji Kobashi Yoshiyuki Mizuno Rainer Knauf School of Information Environment Tokyo Denki University Inzai Japan Kwasan and Hida Observatories Kyoto University Kyoto Japan Faculty for the Study of Contemporary Society Kyoto Women's University Kyoto Japan RIKEN Advanced Institute for Computational Science Kobe Japan Graduate School of Engineering University of Hyogo Himeji Japan Faculty of Computer Science and Automation Ilmenau University of Technology Ilmenau Germany

Solar activity has various influences on the global environment, in particular on the magnetic storm and the likelihood of natural disasters. Specifically, it may have serious impacts on the Earth such as failure of satellite communication and navigation (GPS), satellite damage, increased radiation exposure to astronauts, geomagnetic storm and aurora, and power plant failures causing more serious disaster. For a precise forecast of larger scale solar flares causing serious disaster, it is important to improve the space weather forecast, which is basically a daily forecast of the solar flare. In our work so far, a machine-learning algorithm called Support Vector Machine (SVM) was used to forecast the space weather. Here, we propose to extend this technology by integrating Case Based Genetic Algorithm (CBGA) for a more precise forecast and present an evaluation of this approach. Experimental evaluation shows that triple mutation rate on the slowdown of evolution in our Genetic Algorithm improves considerably (e.g. another 5%) more than original mutation rate in the True Skill Statistics TSS.

关键词： Support vector machines Navigation Satellites

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A trust evaluation fluctuation model in the e-commerce

A trust evaluation fluctuation model in the e-commerce

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第27届中国控制与决策会议

作者： Zhang Jing Yu Shengjun Fan Hongbo Rong Hui Computer Technology Application Key Lab of Yunnan Province Kunming University of Science and Technology Faculty of Information Engineering and Automation Kunming University of Science and Technology Faculty of Art and Design Kunming Metallurgy College

ISBN: (纸本)9781479970186

E-commerce is becoming the main shopping *** trust decision-making is the most important factor which decides whether the transaction is successful or *** to offer people an accurate and objective trust is a basic issue that scholars must face and *** can measure the stability of a set of data and help us avoid risk to some *** order to prevent fraud and deception,this paper proposes a trust evaluation fluctuation model based on historical rating data.A new reward and punishment mechanism is added into the *** results of simulation experiments prove the practicality and validity of the model.

关键词： decision-making trust volatility fraud and deception

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Performance evaluation of network header compression schemes for UDP, RTP and TCP

Periodica polytechnica Electrical engineering and computer s...

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Periodica polytechnica Electrical engineering and computer science 2016年第3期60卷 151-162页

作者： Tömösközi, Máté Seeling, Patrick Ekler, Péter Fitzek, Frank H. P. Acticom GmbH Berlin Germany Department of Electronic Systems Aalborg University Denmark Communication Networks Group Technische Universität Dresden Germany Department of Computer Science Central Michigan University Mount PleasantMI48859 United States Department of Automation and Applied Informatics Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Hungary

Modern cellular networks utilising the Long-Term Evolution (LTE) set of standards face an ever-increasing demand for mobile data from connected devices. Header compression is employed to minimise the overhead for IP-based cellular network traffic. In this paper, we evaluate the three header compression implementations used by such networks with respect to their potential throughput increase and complexity for different mobile service scenarios. We compare RTP, UDP and TCP profile compressions regarding their compression gain and complexity. Specifically, we consider header compression as defined by (i) IP Header Compression (RFC 2507), (ii) Robust Header Compression version 1 (RFC 3095), and (iii) the recently updated Robust Header Compression version 2 (RFC 5225) with TCP/IP profile (RFC 6846).This paper presents the performance evaluation of these header compression schemes for UDP, RTP and TCP, for both IPv4 and IPv6 streams in error-free and error-prone scenarios. A comparison between the Robust Header Compression methods and IP Header Compression is also provided. Our results show that all implementations have great potential for saving bandwidth in IP-based wireless networks, even under varying channel conditions. We also present for the first time an analysis of certain RTP header fields which, depending on the transmission characteristics, could have high impact on the overall compression gain. © 2016, Technical University of Budapest. All rights reserved.

关键词： Bandwidth

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Characterizing motion types of G-band bright points in the quiet Sun

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Research in Astronomy and Astrophysics 2015年第4期15卷 569-582页

作者： Yun-Fei Yang Hui-Xue Qu Kai-Fan Ji Song Feng Hui Deng Jia-Ben Lin Feng Wang Faculty of Information Engineering and Automation / Yunnan Key Laboratory of Computer Technology Application Kunming University of Science and Technology Key Laboratory of Solar Activity National Astronomical ObservatoriesChinese Academy of Sciences Key Laboratory of Modern Astronomy and Astrophysics Nanjing UniversityMinistry of Education Yunnan Observatories Chinese Academy of Sciences

We study the motion of G-band bright points （GBPs） in the quiet Sun to obtain the characteristics of different motion types. A high resolution image sequence taken with the Hinode/Solar Optical Telescope （SOT） is used, and GBPs are automat- ically tracked by segmenting 3D evolutional structures in a space-time cube. After putting the GBPs that do not move during their lifetimes aside, the non-stationary GBPs are categorized into three types based on an index of their motion type. Most GBPs that move in straight or nearly straight lines are categorized as a straight mo- tion type, a few moving in rotary paths into rotary motion, and the others fall into a motion type we called erratic. The mean horizontal velocities are 2.18±0.08 km s-1, 1.63±0.09km s^-1 and 1.33±0.07 km s^-1 for straight, erratic and rotary motion types, respectively. We find that a GBP drifts at a higher and constant velocity during its whole life if it moves in a straight line. However, it has a lower and variational velocity if it moves on a rotary path. The diffusive process is ballistic-, super- and sub-diffusion for straight, erratic and rotary motion types, respectively. The corresponding diffusion index （γ） and coefficients （K） are 2.13±0.09 and 850±37km^2 s^-1, 1.82±0.07 and 331 ±24 km^2 s^-1, and 0.73±0.19 and 13±9 km^2 s^-1. In terms of direction of motion, it is homogeneous and isotropic, and usually persists between neighboring frames, no matter what motion type a GBP is classified as.

关键词： techniques： image processing -- Sun： photosphere -- methods： dataanalysis -- methods： statistical

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A trust evaluation fluctuation model in the e-commerce 27

A trust evaluation fluctuation model in the e-commerce

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27th Chinese Control and Decision Conference, CCDC 2015

作者： Jing, Zhang Yu, Shengjun Fan, Hongbo Hui, Rong Computer Technology Application Key Lab of Yunnan Province Kunming University of Science and Technology Kunming China Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming China Faculty of Art and Design Kunming Metallurgy College Kunming Yunnan China

ISBN: (纸本)9781479970179

E-commerce is becoming the main shopping way. The trust decision-making is the most important factor which decides whether the transaction is successful or not. How to offer people an accurate and objective trust is a basic issue that scholars must face and solve. Volatility can measure the stability of a set of data and help us avoid risk to some extent. In order to prevent fraud and deception, this paper proposes a trust evaluation fluctuation model based on historical rating data. A new reward and punishment mechanism is added into the model. The results of simulation experiments prove the practicality and validity of the model. © 2015 IEEE.

关键词： decision-making fraud and deception trust volatility

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TQS-DP:A Lightweight and Active Mechanism for Fast Scheduling Based on WSN Operating System Tiny OS

TQS-DP:A Lightweight and Active Mechanism for Fast Schedulin...

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第27届中国控制与决策会议

作者： Zhang Jing Xue Leng Fan Hongbo Cui Yi Computer Technology Application Key Lab of Yunnan Province Kunming University of Science and Technology Faculty of Information Engineering and Automation Kunming University of Science and Technology Yunnan Academy of Scientific & Technical Information

ISBN: (纸本)9781479970186

Sensor technology is a key technology in the field of Internet of Things(Io T),which has been applied to the research on task scheduling of embedded systems in wireless sensor networks(WSN),it affects the existence and uniqueness of the real-time interactive behavior for Io T service,as well as the energy consumption modeling and evaluation of WSN deployment on the background of real-time embedded control *** this paper,through further studies on the kernel scheduling mechanism of Tiny OS,aiming at its shortcomings,a lightweight scheduling strategy- quick sort scheduling strategy based on dynamic priority of tasks queue(TQS-DP) was *** strategy changes the priority of tasks dynamically,and quickly put them into queues with quick ***,the timeout management of tasks is taken into *** the priority level of the task is high or low,it can be executed in due ***,the simulation experiments show that our method cannot only improve the task throughput of the whole wireless sensor networks(WSNs),but also effectively reduce the energy consumption of system,in order to ensure the real-time performance,determinacy and casuality dependency of task scheduling.

关键词： WSN Tiny OS scheduling mechanism dynamic priority energy consumption real-time

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Computational Geometry and Heuristic Approaches for Location Problems

Computational Geometry and Heuristic Approaches for Location...

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2015 International Conference on Electrical, automation and Mechanical engineering(EAME 2015)

作者： M.?eda Institute of Automation and Computer Science Faculty of Mechanical Engineering Brno University of Technology

In this paper we deal with two problems,whose common basis is to find the location of a service center for potential customers,but with different criterion functions,determining what we consider in these tasks as *** maximizing the coverage of an area by supermarkets,we choose a new supermarket the location that minimises interaction(and thus competition) with existing *** the contrary,if we want to provide the availability of certain services for all customers within a reasonable distance,and yet we know in advance where it would be possible to set up servicing points,the goal is to minimize their *** show that the first type of problem can be solved in polynomial time using the Voronoi diagram,the task of the second type leads to the set covering problem,which is an NP-hard problem,and it is therefore necessary to solve larger instances of a task by *** is proposed we use a genetic algorithm approach and special attention is paid to implementation of a repair operator for infeasible solutions generated by the operations of crossover and mutation.

关键词： computational geometry location-based service(LBS)

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An Analysis of Driver's Avoiding Maneuver in a Highly Emergency Situation

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SICE Journal of Control, Measurement, and System Integration 2015年第1期8卷 27-33页

作者： Makoto Itoh Marie-Pierre Pacaux Lemoine Fré dé ric Robache Hervé Morvan Faculty of Engineering Information and Systems University of Tsukuba Laboratory of Industrial and Human Automation Mechanics and Computer Science University of Valenciennes

This paper discusses driver's emergency avoiding behavior while he or she is driving a car in a rural area. Based on behavioral data obtained from an experiment conducted in France with a high-fidelity driving simulator, the authors analyzed the driver behavior just before the collision. The results showed that the drivers tended to choose a “rational” behavior to avoid the collision by using the available visual cues even though the situation is extremely time critical, i.e., the time to collision was only approximately 1.5 seconds.

关键词： emergency automobile collision avoidance driving assistance

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