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3rd International Conference on Ubiquitous and Future Networks, ICUFN 2011

作者： Majhi, Sudhan Qian, Hua Xiang, Weidong Addepalli, Sateesh Gao, Zhenguo School of Electrical and Electronic Engineering Nanyang Technological University Singapore Singapore Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences China Electrical and Computer Engineering University of Michigan Dearborn United States Advanced Architecture and Research Cisco Systems Inc. United States College of Automation Harbin Engineering University Harbin China

ISBN: (纸本)9781457711763

This paper analyzes the outage probability of opportunistic decode-and-forward relaying network over asymmetric fading channels where cooperative nodes are located at distributed locations and signals experience asymmetric and independent Rayleigh and Rician channels. The outage probability of such a wireless relaying network is theoretically derived in high SNR scenarios, which is thereafter verified through Monte-Carlo simulations. It is shown that the variation of the outage probability of a relaying network under different asymmetric channels is independent to the number of relay nodes. © 2011 IEEE.

关键词： Fading channels

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Classifying patent images

Classifying patent images

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2011 Cross Language Evaluation Forum Conference, CLEF 2011

作者： Morzinger, Roland Horti, Andras Thallinger, Georg Bhatti, Naeem Hanbury, Allan Joanneum research digital Institute for Information and Communication Technologies Steyrergasse 17 Graz8010 Austria Institute for Computer-Aided Automation Vienna University of Technology Favoritenstr. 9-11/183 Vienna1040 Austria Institute for Software Technology and Interactive Systems Vienna University of Technology Favoritenstr. 9-11/188 Vienna1040 Austria

This report presents the work carried out for the image classification task in the course of the CLEF-IP 2011 competition. Based on the visual content, patent images are automatically classified into several drawing types, such as abstract drawings, tables, flow chart and graphs. For that purpose, a series of SVM classifiers, multi-modal fusion schemes and a variety of content-based low-level features for black and white images were used. The overall reported performance was promising. Our best runs achieved a true positive rate of over 66% and the reported average area under curve is over 0.9.

关键词： Image classification

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A conceptual framework for semantic case-based safety analysis

A conceptual framework for semantic case-based safety analys...

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International Conference on Emerging Technologies and Factory automation (ETFA)

作者： Olawande Daramola Tor Stålhane Thomas Moser Stefan Biffl Department of Computer and Information Science Norwegian University of Science and Technology Norway Christian Doppler Laboratory for Software Engineering Integration for Flexible Automation Systems Vienna University of Technology Austria

Hazard and Operability (HAZOP) Analysis and Failure Mode and Effect Analysis (FMEA) are among the most widely used safety analysis procedures in the development of safety-critical and embedded systems. These analyses are generally perceived as complex and time-consuming, hindering an effective reuse of previous results or experiences. In this paper we present a conceptual semantic case-based framework for safety analysis, which facilitates the reuse of previous HAZOP and FMEA experiences in order to reduce the time and effort associated with these analyses. We present the core technologies of the conceptual framework and evaluated a prototype of the framework, KROSA, in an experiment with domain experts at ABB Norway. Initial results confirm the viability of the conceptual framework for industrial application.

关键词： Ontologies Semantics Natural language processing Libraries Hazards Humans

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Robust H∞ control of switched uncertain time-varying delay discrete-time systems via dynamic output feedback

Robust H∞ control of switched uncertain time-varying delay ...

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7th International Conference on Electrical and Electronics Engineering, ELECO 2011

作者： Song, Zhengui Dimirkovsky, Gyorgyi Zhao, Jun Institute of Integrated Process Automation College of Information Science and Engineering Northeastern University Shenyang Liaoning 110004 China Departments of Computer Eng. and Control Eng. Faculty of Engineering Dogus University Acibadem Zeamet Sokak 21 Kadikoy TR-34722 Istanbul Turkey Institute of Automation and Systems Eng. Faculty of Electrical Eng. and Info. Technologies SS Cyril and Methodius University Karpos 2 BB MK-1000 Skopje Macedonia

ISBN: (纸本)9786050102048

Robust H∞ output feedback control problem for a class of switched linear discrete-time systems possessing norm-bounded uncertainty and time-varying delay is investigated. A switched dynamic output feedback controller is sought that can robust exponentially stabilize and reduce to a prescribed level the effect of disturbance input on the controlled output in the closed loop. A delay-dependent linear matrix inequality based sufficient condition for the problem to be solvable is derived via the switched Lyapunov functions. Controller design is performed by solving a set of linear matrix inequalities. An illustrative example along with simulation results is given to demonstrate the validity of these novel derivations. © 2011 Chamber of Turkish Electric.

关键词： Linear matrix inequalities

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Sliding mode control of switched uncertain linear systems: Designing robust H∞ sliding surface

Sliding mode control of switched uncertain linear systems: D...

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7th International Conference on Electrical and Electronics Engineering, ELECO 2011

作者： Lian, Jie Dimirkovsky, Gyorgyi Zhao, Jun Institute of Integrated Process Automation College of Information Science and Engineering Northeastern University Shenyang Liaoning 110004 China Departments of Computer Eng. and Control Eng. Faculty of Engineering Dogus University Acibadem Zeamet Sokak 21 Kadikoy TR-34722 Istanbul Turkey Institute of Automation and Systems Eng. Faculty of Electrical Eng. and Info. Technologies SS Cyril and Methodius University Karpos 2 BB MK-1000 Skopje Macedonia

ISBN: (纸本)9786050102048

The robust H∞ control problem for a class of uncertain switched linear systems by using the variable structure control is investigated. A robust H∞ single sliding surface is shown to exist as long as a convex combination of the subsystems of the switched system is robustly stabilizable with disturbance attenuation level γ. A switching law is constructed via the single Lyapunov function technique. Variable structure controllers of subsystems are designed so as the resulting closed-loop system guarantees the robust H∞ performance. An illustrative example and simulation results are given to demonstrate the effectiveness of the proposed design method. © 2011 Chamber of Turkish Electric.

关键词： Sliding mode control

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What is Green Security?

What is Green Security?

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International Symposium on information Assurance and Security (IAS)

作者： Luca Caviglione Alessio Merlo Mauro Migliardi Institute of Intelligent Systems for Automation Italian National Council of Research Genoa Italy Department of Computer Communication and Systems Science (DIST) University of Genova Novedrate Italy Department of Information Engineering (DEI) University of Padova Padova Italy

Green Security is a new research field defining and investigating security solutions under an energy-aware perspective. Green Security aims at: (1) evaluating the actual security mechanisms in order to assess their energy consumption; (2) building new security mechanisms by considering energy costs from the design phase. In this paper, we first provide a definition of Green Security and formalism to model it, then we provide a use case showing how it is possible to model the energy consumption of two Intrusion Detection System (IDS) strategies, finally we leverage this model to assess the energy leakage due to the late discovery of bad packets.

关键词： Security Energy consumption Green products Routing Power demand Analytical models Computational modeling

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Automatic security analysis using security metrics

Automatic security analysis using security metrics

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MILCOM, Military Communications Conference

作者： Kun Sun Sushil Jajodia Jason Li Yi Cheng Wei Tang Anoop Singhal Center of Secure Information Systems George Mason University USA Intelligent Automation Inc. Rockville MD USA Computer Security Division National Institute of Standards and Technology USA

Security metrics are valuable for measuring and comparing the amount of security provided by different systems and configurations. However, meaningful security metrics for networked systems are significantly difficult to define, evaluate, interpret, and visualize. We design a system that provides security metrics collection, security metrics management, and security metrics visualization for scalable and automatic security analysis. We first identify a set of new security metrics. Then, we show how to collect simple security metrics from the computers in a sample network. Next, we use Analytic Hierarchy Process (AHP) mechanism to compose two sophisticated security metrics, Criticality and Security Score, which are critical to measure the security risk. We also develop visualization tools to help administrators better understand and evaluate the system security using security metrics.

关键词： Security Measurement computers Visualization Databases Availability Vectors

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Experiment design for Pauli channel estimation

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IFAC Proceedings Volumes 2011年第1期44卷 4344-4349页

作者： Gábor Balló Katalin M. Hangos Department of Electrical Engineering and Information Systems University of Pannonia Egyetem u. 10 H-8200 Veszprém Hungary Process Control Research Group Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences P.O. Box 63 H-1518 Budapest Hungary

Abstract Experiment design for quantum channel parameter estimation includes the design of the quantum input to the channel and the observables to be applied on the resulting quantum output system, called the experiment configuration. An experiment design procedure based on maximizing the Fisher information of the qubit Pauli channel parameters is presented in this paper. It can be shown that the Fisher information is a convex function in both the input and the experiment configuration parameters. This leads to an optimal setting that includes pure input states and projective measurements directed towards the channel directions. An iterative method of estimating the channel directions is also proposed.

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Robust H∞ control of switched uncertain time-varying delay discrete-time systems via dynamic output feedback

Robust H∞ control of switched uncertain time-varying delay ...

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International Conference on Electrical and Electronics Engineering, ELECO

作者： Zhengui Song Gyorgyi Dimirkovsky Jun Zhao Institute of Integrated Process Automation College of Information Science & Engineering Northeastern University Shenyang Liaoning China Institute of Automation & Systems Engineering Faculty of Electrical Engineering & Information Technologies Ss Cyril and Methodius University Skopje Macedonia Departments of Computer Engineering & Control Engineering Faculty of Engineering Dogus University Kadikoy Istanbul Turkey

Robust H ∞ output feedback control problem for a class of switched linear discrete-time systems possessing norm-bounded uncertainty and time-varying delay is investigated. A switched dynamic output feedback controller is sought that can robust exponentially stabilize and reduce to a prescribed level the effect of disturbance input on the controlled output in the closed loop. A delay-dependent linear matrix inequality based sufficient condition for the problem to be solvable is derived via the switched Lyapunov functions. Controller design is performed by solving a set of linear matrix inequalities. An illustrative example along with simulation results is given to demonstrate the validity of these novel derivations.

关键词： Switches Robustness Output feedback Linear matrix inequalities Switched systems Delay

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Sliding mode control of switched uncertain linear systems: Designing robust H∞ sliding surface

Sliding mode control of switched uncertain linear systems: D...

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International Conference on Electrical and Electronics Engineering, ELECO

作者： Jie Lian Gyorgyi Dimirkovsky Jun Zhao Institute of Integrated Process Automation College of Information Science & Engineering Northeastern University Shenyang Liaoning China Institute of Automation & Systems Engineering Faculty of Electrical Engineering & Information Technologies Ss Cyril and Methodius University Skopje Macedonia Departments of Computer Engineering & Control Engineering Faculty of Engineering Dogus University Kadikoy Istanbul Turkey

The robust H ∞ control problem for a class of uncertain switched linear systems by using the variable structure control is investigated. A robust H ∞ single sliding surface is shown to exist as long as a convex combination of the subsystems of the switched system is robustly stabilizable with disturbance attenuation level γ. A switching law is constructed via the single Lyapunov function technique. Variable structure controllers of subsystems are designed so as the resulting closed-loop system guarantees the robust H ∞ performance. An illustrative example and simulation results are given to demonstrate the effectiveness of the proposed design method.

关键词： Switches Switched systems Robustness Linear systems Attenuation Uncertain systems

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