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54th Annual Hawaii International Conference on System Sciences, HICSS 2021

作者： Zhang, Lin Liu, Cheng Yan, Qiang Lu, Junqiang Qu, Li School of Economics and Management Beijing Information Science and Technology University China Institute of Emergency Management Systems China Academy of Electronics and Information Technology China School of Modern Post School of Automation Beijing University of Posts and Telecommunications China School of Computer Science National Pilot Software Engineering School Beijing University of Posts and Telecommunications China

ISBN: (纸本)9780998133140

Disaster resilience is important for a smart city. Analyzing disaster cases within a scenario-based analytical framework provides an effective way to acquire specific experience in disaster prevention and emergency management. This study proposes a dynamic scenario model, which consists of developing scenario representation and developing scenario sequence. Developing scenario representation provides a normalized representation framework for disaster scenarios. Meanwhile, how to make the representation contributes to severity evaluation is discussed. Developing scenario sequence establishes dependencies among disaster scenarios to show the whole disaster evolution of disaster cases. A disaster case of a crude oil tank is taken as an example to give a better understanding of the dynamic scenario model. The result shows that the dynamic scenario model can establish a more structurally and normalized representation for disaster scenarios. Furthermore, the model also provides an intuitive way for evaluation of disaster consequence severity, which helps in improving the situation awareness of the disaster. © 2021 IEEE computer Society. All rights reserved.

关键词： Disasters

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Multithreaded LOGFLOW on KUMP/D 2nd

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2nd International Symposium on High Performance Computing, ISHPC 1999

作者： Németh, Zsolt Tomiyasu, Hiroshi Kacsuk, Péter Amamiya, Makoto MTA Computer and Automation Research Institute P.O.Box 63 BudapestH-1518 Hungary Dept. of Intelligent Systems Graduate School of Information Science and Electrical Engineering Kyushu University 6-1 Kasuga-koen Kasuga Fukuoka816 Japan

ISBN: (纸本)3540659692

The exploited parallelism offered by logic programming languages is usually categorized as OR-parallelism and AND-parallelism. Another dimension could be the level of functionality where the parallelism is exploited. In this paper a novel approach is described where the parallelism is utilized at thread level. There are two cornerstones in the project. Implementing a macro dataflow model on a hybrid dataflow/von Neumann multithreaded architecture promises an efficient hardware support. Furthermore, by utilizing the features of a multithreaded architecture, remote memory accesses without significant loss of performance allow a new way of variable handling. Both the MPAM (Multithreaded Prolog Abstract Machine) and the physical machine KUMP/D, where the system is going to be implemented, are presented here. © 1999, Springer-Verlag. All rights reserved.

关键词： Data flow analysis

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Special Section: Navigation in information-Intensive Environments

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Journal of Management information systems 1995年第4期11卷 5-8页

作者： Tomás Isakowitz Michael Bieber Assistant Professor of Information Systems Stern School of Business New York University Assistant Professor of Information Systems Computer and Information Science Department New Jersey Institute of Technology Director Hypermedia Information Systems Research Lab New Jersey Institute of Technology JOVE Faculty Fellow Automation Technology Section Goddard Space Flight Center NASA

The article discusses various reports published within the issue, including one by James B. Baty, II and Ronald M. Lee on electronic commerce and another by Minder Chen on executive information systems.

关键词： information storage and retrieval systems Vendors Multimedia materials Shopping information access Internet information resources Architectural models Design information retrieval

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Automating CPPSs Analyses with SysML v2 and Lingua Franca in the Context of Industry 4.0

Automating CPPSs Analyses with SysML v2 and Lingua Franca in...

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Annual Conference of Industrial Electronics Society

作者： Sebastiano Gaiardelli Jan Wilch Franco Fummi Birgit Vogel-Heuser Department of Engineering for Innovation Medicine Industrial Computer Engineering Laboratory University of Verona Italy Institute of Automation and Information Systems Technical University of Munich Germany Institute of Automation and Information Systems Core Member of MDSI Member of MIRMI Technical University of Munich Germany

ISBN: (数字)9781665464543

ISBN: (纸本)9781665464550

The design of manufacturing systems requires exploring diverse component configurations for one that best satisfies the requirements of the target system. At the same time, manufacturing systems evolve continuously, increasing their complexity and that of the production line in which they are installed. Model-based System Engineering (MBSE) methodologies and modeling languages like System Modeling Language (SysML) are used to assist system engineers during the entire design process. Yet, MBSE methodologies mainly rely on manually composed models for requirements verification, incurring enormous cost and effort especially in larger, more complex systems. This paper proposes a methodology exploiting the knowledge enclosed in a SysML model to automate the execution of a set of analyses defined over the represented manufacturing system. The proposed approach relies on Lingua Franca (LF) to simulate the specified analysis and analyze the results. Moreover, the methodology supports chains of analyses to represent dependent requirements and tradeoffs imposed upon a manufacturing system. The proposed methodology has been evaluated on a manufacturing system demonstrator. Results show the proposed methodology's applicability and scalability on diverse configurations of the manufacturing system.

关键词： Industrial electronics Analytical models Translation Costs Scalability Production systems Modeling Language Libraries Fourth Industrial Revolution Manufacturing systems

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Two-Operation Buffering based on Dynamic Optical RAM 17

Two-Operation Buffering based on Dynamic Optical RAM

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17th IEEE International Conference on Advanced Trends in Radioelectronics, Telecommunications and computer Engineering, TCSET 2024

作者： Semenov, Andriy Tsyrulnyk, Serhii Baraban, Serhii Semenova, Olena Rudyk, Andrii Khloba, Anton Vinnytsia National Technical University Faculty of Information Electronic Systems Vinnytsia Ukraine Vinnytsia National Agrarian University Department of Computer Sciences and Digital Economy Vinnytsia Ukraine Poznan University of Technology Faculty of Computing and Telecommunications Poznan Poland National University of Water and Environmental Engineering Department of Automation Electrical Engineering and Computer-Integrated Technologies Rivne Ukraine

ISBN: (纸本)9798331520564

The authors of this paper propose a block diagram for a dual-operating buffer on a dynamic optical RAM. The buffer consists of two dynamic optical RAMs, each controlled separately to allow for simultaneous writing and reading of data, thereby improving performance. This setup enables data to be read from the buffer while new data is being written to it. Implementing a dual-operating buffer on a dynamic optical RAM has the potential to enhance the performance of high-speed data transmission in telecommunications networks. The authors conducted numerical calculations to compare failure probabilities between single-operation and dual-operation buffers on dynamic optical RAM. The results indicated that using a dual-operating buffer significantly reduces the probability of failure with the same buffer memory capacity compared to a single-operating buffer. Additionally, the authors analyzed the effectiveness of the proposed dual-operating buffer. The analysis confirmed that exploiting dynamic optical memory for buffering enhances data transfer speed and efficiency due to the inherent properties of optical data transfer, such as high bandwidth and low latency. © 2024 IEEE.

关键词： Dynamic random access storage

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Developing an optimized application hosting framework in Clouds

Developing an optimized application hosting framework in Clo...

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作者： Shi, Xuanhua Jiang, Hongbo He, Ligang Jin, Hai Wang, Chonggang Yu, Bo Chen, Xueguang Service Computing Technology and Systems Lab School of Computer Huazhong University of Science and Technology China Department of Electronics and Information Engineering Huazhong University of Science and Technology China Department of Computer Science University of Warwick United Kingdom InterDigital Communications Corp. United States Department of Automation Control and Engineering Huazhong University of Science and Technology China

A Cloud system, which is also often called a data center, may host a large number of application servers (termed as applications for short in this paper) that consume various types of resource, such as CPU, memory, and I/O. In such a scenario, the application placement strategy, which specifies how to host applications across the physical servers in the Cloud, is critical to achieve good system- and/or client-oriented performance. The existing application placement algorithms in literature assume that the consumption of system resources is proportional to the level of workloads submitted to the system. In this paper, we reveal that it may not be the case in some circumstances. Based on this observation, we design and implement an application placement framework, called EAPAC, for Clouds. The developed framework is able to achieve the optimized performance by judiciously allocating to the applications a proper mixture of different types of application request as well as an appropriate number of requests in each type. Further, we investigate the issue of resource conflicts among different applications when there exist concurrent requests in the system. We have conducted extensive experiments to evaluate the performance of the developed framework. The experiment results show that compared with the existing method in literature, EAPAC can improve the performance by 35% in terms of the reply rate. © 2013 Elsevier Inc.

关键词： Application placement Cloud Resource conflicts

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A performance analyser and prediction tool for parallel discrete event simulation

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International Journal of Simulation: systems, Science and Technology 2003年第1-2期4卷 7-22页

作者： Juhasz, Zoltan Turner, Stephen Kuntner, Krisztian Gerzson, Miklos Dept of Information Systems University of Veszprem Hungary School of Computer Engineering Nanyang Technological University Singapore Dept of Computer Science University of Exeter United Kingdom Dept of Automation University of Veszprem Hungary

Developing parallel discrete event simulation programs is a difficult and time consuming process often ending with disappointment as the achieved performance is often lower than expected. Developers need performance prediction tools that are capable of providing information on the future performance of the parallel program prior to implementation. This paper describes a performance analyser tool developed to predict the performance of parallel discrete event simulation programs. Its unique feature is that it does not require the existence of the parallel program;it gathers the necessary program information from a trace file generated by a sequential simulation run. This enables one to determine, using a sequential simulation program, whether or not a parallel implementation is suitable, and if so, which approach is the best for the given simulation problem. The parallel version then only has to be developed if proved to be successful. The paper describes the analyser program, its architecture, functionality and use. © 2003, UK Simulation Society. All rights reserved.

关键词： Forecasting

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Computing on silicon with trigger waves: Experiments on CNN-UM chips

Computing on silicon with trigger waves: Experiments on CNN-...

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2001 IEEE International Symposium on Circuits and systems, ISCAS 2001

作者： Rekeczky, Csaba Szatmari, Istvan Foldesy, Peter Analogical and Neural Computing Systems Laboratory Computer and Automation Institute Hungarian Academy of Sciences Kende U. 13-17 Budapest 1111 Hungary Jedlik Laboratories Department of Information Technology Peter Pazmany Catholic University Szentkirdyi U. 28 Budapest 1088 Hungary

ISBN: (纸本)0780366859

In this paper, experimental results on Cellular Neural Network Universal Machine (CNN-UM) chips will be presented. These analogic spatio-temporal visual microprocessors make it possible that one can use nonlinear waves as the basic kernels of algorithms solving filtering-reconstruction and/or detection-classification problems. Showing output results from series of experiments it will be demonstrated how trigger waves, the simplest nonlinear waves, can constructively be used in a number of important application areas. © 2001 IEEE.

关键词： Silicon

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Sequential Particle Swarm Optimization for Visual Tracking

Sequential Particle Swarm Optimization for Visual Tracking

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26th IEEE Conference on computer Vision and Pattern Recognition (CVPR 2008), vol.5

作者： Xiaoqin Zhang Weiming Hu Steve Maybank Xi Li Mingliang Zhu National Laboratory of Pattern Recognition Institute of Automation Beijing China School of Computer Science and Information Systems Birkbeck College London UK

Visual tracking usually involves an optimization process for estimating the motion of an object from measured images in a video sequence. In this paper, a new evolutionary approach, PSO (particle swarm optimization), is adopted for visual tracking. Since the tracking process is a dynamic optimization problem which is simultaneously influenced by the object state and the time, we propose a sequential particle swarm optimization framework by incorporating the temporal continuity information into the traditional PSO algorithm. In addition, the parameters in PSO are changed adaptively according to the fitness values of particles and the predicted motion of the tracked object, leading to a favourable performance in tracking applications. Furthermore, we show theoretically that, in a Bayesian inference view, the sequential PSO framework is in essence a multi-layer importance sampling based particle filter. Experimental results demonstrate that, compared with the state-of-the-art particle filter and its variation-the unscented particle filter, the proposed tracking algorithm is more robust and effective, especially when the object has an arbitrary motion or undergoes large appearance changes.

关键词： Particle swarm optimization Particle tracking Particle filters Inference algorithms Motion estimation Motion measurement Video sequences Bayesian methods Nonhomogeneous media Monte Carlo methods

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A Far-Range Off-line Camera Calibration Method for Stereo Lane Detection systems

A Far-Range Off-line Camera Calibration Method for Stereo La...

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IEEE Instrumentation and Measurement Technology Conference

作者： Andras Bodis-Szomoru Tamas Daboczi Zoltan Fazekas Department of Measurement and Information Systems Budapest University슠of슠Technology슠and슠Economics Hungary Systems and Control Laboratory Computer and Automation Research Institute Hungary

A far-range camera calibration method for vision sensors used in automatic lane detection systems is investigated. Autonomous vehicle guidance based on stereo image acquisition requires the knowledge of the camera parameters, such as camera position, orientation, lens distortion, focal length etc. with high precision. Calibration is performed by placing markers in known positions in front of the vehicle holding the camera(s) and by detecting the location of their images in the acquired snapshots. The parameters are then estimated by minimizing the geometric error in the image. Most of the methods discovered in the literature do not consider errors in the measurement of marker locations. However, a precise marker arrangement for far-range calibration might be expensive to set up. This paper shows that imprecision in the 3D location of the markers can not be tolerated in some practical situations and in such cases, a different optimization is proposed in the calibration of the extrinsic camera parameters (camera position and orientation). A position estimation method is also shown to extract marker positions from far-range laser distance meter measurements. The estimated marker positions are corrected by considering aiming errors, as well. Parameter errors are also estimated. It will be shown that our new calibration and optimization method is expected to result a good accuracy compared to commercial methods.

关键词： Cameras Calibration Remotely operated vehicles Sensor systems Mobile robots Navigation Lenses Vehicle detection Parameter estimation Position measurement

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