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IEEE International Symposium on Circuits and Systems

作者： Kexin Liu Henghui Zhu Jinhu Lu Maciej J. Ogorzalek LSC ISS Acad. Math. Syst. Sci. Chinese Academy of Sciences Beijing 100190 P. R. China Faculty Phys. Astronomy Appl. Comput. Sci. Jagiellonian University Krakow 30-059 Poland

ISBN: (纸本)9781479983926

With the rapid development of sensor networks in the last decade, the cooperative design for networked observers has received an increasing attention from engineering community. This paper aims at developing a unified framework for cooperative design of networked observers to stabilize LTI plants. Apart from the traditional centralized design of MIMO system, the proposed cooperative design approach only utilizes the local information of each sensor. For undirected networks, this paper obtains a sufficient and necessary condition for the existence of the parameters that lead to the stabilization of the LTI plant. In particular, we give the detailed design procedures for the parameters of networked observers, including feedback gains and the coupling strength. The numerical simulation is also given to validate the proposed theoretical results.

关键词： LTI Sensor networks design process Observers feedback gain local information. multiple input multiple output systems Stabilising

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Cheating prevention in Visual Cryptographic Schemes using message embedding: A hardware based practical approach

Cheating prevention in Visual Cryptographic Schemes using me...

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International Conference on Issues and Challenges in Intelligent comput.ng Techniques (ICICT)

作者： Biswapati Jana Shyamal Kumar Mondal Shannistha Jana Debasis Giri Vidyasagar University Midnapore West Bengal IN Dept. of Appl. Math. with Oceanol. & Comput. Program. Vidyasagar Univ. Paschim Medinipur India Dept. of Math. Midnapore Coll. Paschim Medinipur India Dept. of Comput. Sci. Eng. Haldia Inst. of Technol. Haldia India

This paper attempts to give a hardware based practical overview about cheating prevention of information hiding technique using Steganography and Visual Cryptographic Schemes (VCS). A combined technique have been proposed here, which allows visual information (e.g. printed text, handwritten notes, and images) to be distributed into 'n' secret shares as transparencies and embedding message into share became stego share for share authentication. Finally each of these stego shares embeds into a cover image using hardware module. At the time of recovering the receiver first decode each stego shares from the cover work than extract secret message from share to prevent cheating. The original secret message can be retrieve by overlapping the shares. The proposed encoding and decoding scheme for share generation is implemented in software module and embedding of message into share and stego share into cover image are implemented in hardware-based system for 2-D images.

关键词： Cryptography Discrete wavelet transforms Biological information theory Universal Serial Bus comput.r architecture Airplanes PSNR

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ChemInform Abstract: Magnetic Properties of MM′X (M = Mn, M′ = 3d or 4d Metal, X = P, As, Si, Ge) Compounds with Hexagonal or Orthorhombic Crystal Structure

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ChemInform 2014年第4期45卷

作者： Ryszard Zach Janusz Tobola Wieslaw Chajec Daniel Fruchart Fumihisa Ono Inst. Phys. Fac. Phys. Math. Appl. Comput. Sci. Krakow Univ. Technol. PL-30-084 Krakow Pol.

Review: 16 refs.

关键词： inorganic chemistry, review dielectric properties, magnetic properties transition metals phosphorus group silicon, Si germanium, Ge

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Exploring Strategy Selection in Populations via A Continuous Evolutionary Game Dynamics

Exploring Strategy Selection in Populations via A Continuous...

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IEEE International Symposium on Circuits and Systems

作者： Shaolin Tan Jinhu Lu Yu Hu Maciej J. Ogorzalek College Electr. Inf. Eng. Hunan Univ. Changsha 410082 P. R. China Acad. Math. Syst. Sci. Chin. Acad. Sci. Beijing 100190 P. R. China Dept. Biostat. Epidemiol. Perelman Sch. Med. Univ. Pennsylvania PA 19104-6395 USA Facult. Phys. Astronom. Appl. Comput. Sci. Jagiellonian Univ Krakow 30-059 Poland

ISBN: (纸本)9781479934331

Strategy selection is a fundamental problem for the evolutionary game process in structured populations. This paper aims at investigating the strategy selection problem by introducing a continuous evolutionary game dynamics on complex networks. It is shown that the population preference for strategies keeps unchanged under random drift in the evolutionary process. However, because of selection, the population will favor one strategy over the other based on the population structure and game payoffs. In particular, for the prisoners dilemma game, our results show that the cooperation is never favored in complete networks. However, it is greatly promoted by cycle networks. The above results are consistent with those in the traditional discrete evolutionary game dynamics. It should be especially pointed out that the proposed framework provides a potential effective tool for analyzing and controlling the evolutionary process in populations.

关键词： evolutionary strategy greatly Evolutionary Hunting Game theory Game animals random drift Population structure complex networks

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A Performance Prediction Approach for MPI Routines on Multi-clusters

A Performance Prediction Approach for MPI Routines on Multi-...

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Euromicro Conference on Parallel, Distributed and Network-Based Processing

作者： Sami Achour Wahid Nasri Higher Inst. of Appl. Math. & Comput. Sci. Kairouan Tunisia Higher School of Sciences and Techniques Tunis Tunisia

Performance is one of the key features of parallel and distributed comput.ng systems. For that reason, a significant research effort was invested in the development of approaches in the area of performance modeling and prediction. Since many parallel appl.cations from scientific comput.ng use MPI communication operations to distribute or collect data, we present in this paper a novel (off-line) approach that addresses the performance prediction of MPI routines in multi-clusters platforms. The main objective of this approach is to predict accurately and efficiently the performance of a given routine. Our solution is based principally on models for point to point (P2P) MPI routines which are obtained after a short profiling procedure. Since collective communication routines are composed of P2P routines, the performance prediction of the formers is done on the basis of a rapid emulation of these routines and on an evaluation of P2P routines models. Experimental results obtained on a grid platform demonstrated the interest of the proposed approach.

关键词： Predictive models Time measurement Measurement uncertainty Size measurement Emulation Accuracy Benchmark testing

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Intrinsic noise induced state transition in coupled positive and negative feedback genetic circuit

Intrinsic noise induced state transition in coupled positive...

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5th IEEE International Conference on Systems Biology, ISB 2011

作者： Wang, Pei Lü, Jinhu Zhang, Yuhuan Ogorzalek, Maciej J. Sch. Math. Stat. Wuhan University Wuhan 430072 China Acad. Math. Syst. Sci. Chinese Academy of Sciences Beijing 100190 China Sch. Math. Sci. Capital Normal University Beijing 100048 China Fac. Phys. Astron. Appl. Comput. Sci. Jagiellonian University Krakow 30-059 Poland

ISBN: (纸本)9781457716669

It is well known that gene regulatory circuits can be modeled by the deterministic or stochastic approach. In this paper, a three-component coupled positive and negative feedback genetic circuit is firstly modeled deterministically by Hill kinetics. Then, a corresponding stochastic model is also investigated by using Gellispie's stochastic simulation. Some typical dynamical behaviors of the genetic circuit are further discussed based on the bifurcation analysis of deterministic system, including monostability, bistability, excitability, and oscillation. This paper aims to further investigate the effect of intrinsic noise inherently in stochastic models on steady states transition. It includes: i) For the parameters in deterministically bistable region, intrinsic noise may induce bistable switch for the not too large system volume, which can be observed by the generation of a new stable steady state;ii) For the parameters in deterministically excitable region, intrinsic noise may induce periodic switch for the very large system volume, which can be observed by the stabilization of another unstable steady state and the switching between two stable states;iii) When time delays are introduced in these two models, similar phenomena can be observed. The above results will certainly increase the understanding of the inner relationships between different modeling for the genetic circuit. It sheds some light on the real- world engineering appl.cations, such as the engineering design of synthetic circuits. © 2011 IEEE.

关键词： Feedback

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ChemInform Abstract: Magnetic Properties and Magnetocaloric Effect in Selected MM′X‐type (M, M′: 3d or 4d Metal, X: As, P, Ge) and Mn1‐xTxAs‐type (T: 3d Metal) Intermetallics

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ChemInform 2011年第35期42卷

作者： Ryszard Zach Wieslaw Chajec Janusz Tobola Daniel Fruchart El Kebir Hlil Mohamed Balli Pierre Wolfers Inst. Phys. Fac. Phys. Math. Appl. Comput. Sci. Krakow Univ. Technol. PL‐30‐084 Krakow Pol.

Review: 12 refs.

关键词： inorganic chemistry, review dielectric properties, magnetic properties transition metals phosphorus group

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Anti-synchronization of Two Different Hyperchaotic Systems with Fully Uncertain Parameters

Anti-synchronization of Two Different Hyperchaotic Systems w...

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International Conference on comput.tional Intelligence and Security

作者： jian-wen Feng Francis Austin He Ling An-ding Dai Coll. of Math. & Comput. Sci. Shenzhen Univ. Shenzhen China Dept. of Appl. Math. Hong Kong Polytech. Univ. Kowloon China Department of Applied Mathematics The Hong Kong Polytechnic University Kowloon Hong Kong Shenzhen University Shenzhen Guangdong CN

Based on the Lyapunov stability theory, the anti-synchronization between hyperchaotic Lorenz-Stenflo (LS) system and hyperchaotic Chen system with fully unknown parameters is investigated. An adaptive control law is derived for the case when the parameters of the drive and response systems to be synchronized are fully uncertain. Numerical simulation results are performed to show the effectiveness of the techniques.

关键词： Chaotic communication Control systems math.matics Lyapunov method Adaptive control Numerical simulation Equations comput.tional intelligence Security Helium

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Adaptive Synchronization Between Hyperchaotic Lorenz System and Chen System

Adaptive Synchronization Between Hyperchaotic Lorenz System ...

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International Conference on comput.tional Intelligence and Security

作者： Francis Austin Chen Xu Jian-wen Feng Wei-qiang Zhang Dept. of Appl. Math. Hong Kong Polytech. Univ. Kowloon China Inst. of Intell. Comput. Sci. Shenzhen Univ. Shenzhen China Hong Kong Polytechnic University Kowloon HK

This paper introduces the chaos synchronization between two different hyperchaotic systems with fully unknown parameters, i. e. the synchronization between hyperchaotic Lorenz system and hyperchaotic Chen system. Based on the Lyapunov stability theory, an adaptive control law is derived for the case when the parameters of the drive and response systems to be synchronized are fully uncertain. Finally, numerical simulation results are presented to show the effectiveness of the techniques.

关键词： Chaotic communication Adaptive control Control systems comput.tional intelligence Lyapunov method Numerical simulation Security Competitive intelligence math.matics Optical arrays

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Global attractor for Hirota equation

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appl.ed math.matics(A Journal of Chinese Universities) 2008年第1期23卷 57-64页

作者： ZHANG Rui-feng GUO Bo-ling Institute of Appl. Math. College of Math. and Inform. Sci. Henan Univ. Kaifeng 475001 China. Institute of Appl. Phys. and Comput. Math. Beijing 100088 China.

The long time behavior of solution for Hirota equation with zero order dissipation is studied. The global weak attractor for this system in Hper^k is constructed. And then by exact analysis of the energy equation, it ... 详细信息

关键词： Hirota equation a priori estimate global attractor.

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