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IEEE International Conference on Networking, Sensing and Control

作者： Yuling Hu Xiwei Liu Feiyue Wang Changjian Cheng Beijing Key Laboratory of Automatic Control System School of Automation Beijing Institute of Technology. and School of Electric and Information Engineering Beijing University of Civil Engineering and Architecture China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences China

Agent-based evacuation modeling approach is gained more and more attention for investigating human cognitive capabilities and social behaviors in building fires. This paper mainly overviews the research about various agent-based evacuation models. For the decision-making reflects the intelligence of agent individual, we define three types of behavior decision-making models for agent individual based on the collected literatures and sum up the characteristics of each type. Aiming at crowd' important influence on evacuation processes, we also sum up two types of agent-based crowd modeling approaches to simulate crowd evacuation processes and give corresponding cases. Finally, after summing up the existing problems, the outlooks of the research from computational experiments point of view is proposed.

关键词： Computational modeling Fires Biological system modeling Buildings Decision making Humans Adaptation models

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Implementing a passive RFID e-seal system for transit container security: A case study of Kaohsiung port

Advances in Transportation Studies

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Advances in Transportation Studies 2012年第26期 69-88页

作者： Huang, S.-W. Lee, M.-T. Gong, D.-C. Department of Industrial and Systems Engineering College of Electrical Engineering and Computer Science Chung Yuan Christian University Chung-Li Tao-Yuan 320 Taiwan Electronic System Research Division Chung-Shan Institute of Science and Technology Long-Tan Tao-Yuan 325 Taiwan

Nearly 80% of worldwide trade (over US $620 billion) is carried by marine transport. Unfortunately, manually identifying, tracking, and monitoring containers involves a great many logistical problems. The security of container transportation has also become an issue of critical importance, with regard to theft, tracking, tracing, and national security. This paper describes the passive radio frequency identification (RFID) electronic seal (e-seal) monitoring system that was implemented using existing low-cost passive RFID e-seals devices to replace the manual escorts. The system successfully overcame the harsh outdoor environment of Kaohsiung Port, including resistance to high temperature, high salinity, humidity, and typhoons. The system comprises a reader, an e-seal (tag), and an antenna, and its optimal installation architecture is being disclosed in this paper. The reading rate not only has been maintained at levels above 97.4% when a container truck travel passes an RFID reader at a speed of up to 60 kilometers per hour in 0.2 seconds, the system has also maintained normal operation 24 hours a day, year round. The system has moved beyond the testing phase or small-scale pilot project bringing RFID technology to practical operations of large-scale logistics systems. The architecture, procedures, methodologies, and experience involved in the development of this system, deserve consideration as a guide for the future introduction of RFID systems, and can relieve operators from the expensive, time-consuming trial and error involved in the introduction of passive RFID e-seal systems in the container transport industry.

关键词： National security

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Non Existence Of Periodic Solutions Of Rational Fractional Order Linear Time Invariant systems

Non Existence Of Periodic Solutions Of Rational Fractional O...

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第五届国际自动控制联合会分数阶导数及其应用会议

作者： Xuefeng Zhang YangQuan Chen Institute of System Science Northeastern University ShenyangLiaoning 110004 China Center for Self-Organizing and Intelligent Systems Electrical and Computer Engineering Department Utah State University Logan UT 84322-4120 USA

Existence of periodic solutions of fractional order dynamic systems is an important and difficult issue in fractional order systems *** this paper,the existence of periodic solutions of rational fractional order linea... 详细信息

关键词： Non Existence Of Periodic Solutions Of Rational Fractional Order Linear Time Invariant systems

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Controllability And Observability Of Linear Time Varying Fractional Order systems

Controllability And Observability Of Linear Time Varying Fra...

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第五届国际自动控制联合会分数阶导数及其应用会议

Fractional order time varying dynamic systems are a kind of important and the less involved *** this paper,the state transition matrix of fractional order linear time varying systems is *** criteria of controllability... 详细信息

关键词： Controllability And Observability Of Linear Time Varying Fractional Order systems

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QoE-Based Multi-Stream Scalable Video Adaptation over Wireless Networks with Proxy

QoE-Based Multi-Stream Scalable Video Adaptation over Wirele...

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IEEE International Conference on Communications

作者： Hao Hu Xiaoqing Zhu Yao Wang Rong Pan Jiang Zhu Flavio Bonomi Electrical & Computer Engineering Polytechnic Institute of NYU Advanced Architecture & Research Cisco Systems

ISBN: (纸本)9781457720529

In this paper, we present a proxy-based solution for adapting the scalable video streams at the edge of a wireless network, which can respond quickly to highly dynamic wireless links. Our design adopts the scalable video coding (SVC) technique for lightweight rate adaptation at the edge. We derive a QoE model, i.e., rate-quality tradeoff model, that relates the maximum subjective quality under a given rate by choosing the optimal frame rate and quantization stepsize. The proxy iteratively allocates rates of different video streams to maximize a weighted sum of video qualities associated with different streams, based on the periodically observed link throughputs and the sending buffer status. Simulation studies show that our scheme consistently outperforms TFRC in terms of agility to track link qualities and overall quality of all streams. In addition, the proposed scheme supports differential services for different streams, and competes fairly with TCP flows.

关键词： Wireless networks Proxy streams rivers scalable video TFRC gene rate adaptive Frame Rate agility weight sums Quantization Tritolyl Phosphates tactical command post

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Non Existence Of Periodic Solutions Of Linear Time Varying Periodic Fractional Order systems

Non Existence Of Periodic Solutions Of Linear Time Varying P...

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第五届国际自动控制联合会分数阶导数及其应用会议

Existence of periodic solutions of fractional order dynamic systems is an important and difficult issue in fractional order systems *** this paper,the existences of periodic solutions of fractional order linear timeva... 详细信息

关键词： Laplace Non Existence Of Periodic Solutions Of Linear Time Varying Periodic Fractional Order systems

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Model checking cooperative multi-agent systems in BDI logic

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Journal of Information and Computational Science 2012年第5期9卷 1185-1194页

作者： Chen, Qingliang Su, Kaile Wu, Lijun Xu, Zhaocheng School of Electronics Engineering and Computer Science Peking University Beijing 100871 China Department of Computer Science Jinan University Guangzhou 510632 China Key Laboratory of Embedded System and Service Computing Ministry of Education Tongji University Shanghai China Institute for Integrated and Intelligent Systems Griffith University Brisbane Australia School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu China

Traditional temporal logics such as LTL (Linear Temporal Logic) and CTL (Computation Tree Logic) have shown tremendous success in specifying and verifying hardware and software systems. However, this kind of logic can only model the dynamic behaviors for a single system, and fall short in capturing the joint and concurrent aspects in the composition of systems, such as the interactions and coordinations of agents in Multi-agent systems. Although ATL (Alternating-time Temporal Logic) can solve the problem to a certain extent, by preceding the temporal operators with a selective path quantifier, to specify that the interactions between entities inside the system can make sure that there is a strategy to reach a certain state, it can not formalize the rational mental attitudes of the agents such as the Belief, Desire and Intention (BDI) which plays an essential role in decision making during cooperation with other agents. This paper will investigate this problem by proposing a logic of ATLBDI (Alternating-time Temporal Logic of Belief Desire and Intention) and discuss the algorithmic issues such as model checking algorithms and the computational complexity, along with examples to show its effectiveness. We conclude that model checking for ATLBDI is completely tractable and is in PTIME-Complete, which is quite an optimistic and promising result for further applications. © 2012 by Binary Information Press.

关键词： Multi agent systems

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Acoustic novelty detection based on AHLAC and NMF

Acoustic novelty detection based on AHLAC and NMF

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IEEE International Symposium on Intelligent Signal Processing and Communication systems (ISPACS)

作者： Akira Sasou Nyamerdene Odontsengel Smart Communication Research Group Intelligent Systems Research Institute Advanced Industrial Science and Technology Tsukuba Ibaraki Japan Department of Computer Science Graduate school of System and Information Engineering University of Tsukuba Tsukuba Ibaraki Japan

ISBN: (纸本)9781467350839

The importance of video surveillance applications has been increasing with the increase of crime and terrorism. In addition to traditional video cameras, the use of acoustic sensors in surveillance and monitoring applications is also becoming increasingly important. In this paper, we apply High-Order Local Auto-Correlation (HLAC), which has succeeded in video surveillance applications, to extract features from acoustic signals in order to construct an acoustic surveillance system based on a novelty detection approach. We also apply Non-Negative Matrix Factorization (NMF) to this problem. Experiment results confirmed that the AHLAC-based method outperforms the NMF-based and the cepstrum-based methods under all SNR conditions. The combined NMF-AHLAC method was able to improve the Equal Error Rate (EER) at lower SNRs, although the EERs at higher SNRs tend to degrade.

关键词： Acoustics Time frequency analysis Vectors Feature extraction Matrix decomposition Video surveillance

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Three-dimensional hierarchical microbattery electrodes for tunable high energy and power density batteries

Three-dimensional hierarchical microbattery electrodes for t...

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2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012

作者： Gerasopoulos, K. Pomerantseva, E. Brown, A. Wang, C. Culver, J. McCarthy, M. Ghodssi, R. MEMS Sensors and Actuators Laboratory Institute for Systems Research University of Maryland College ParkMD20742 United States Department of Electrical and Computer Engineering University of Maryland College ParkMD20742 United States Department of Materials Science and Engineering University of Maryland College ParkMD20742 United States Department of Plant Sciences and Landscape Architecture University of Maryland College ParkMD20742 United States Department of Chemical and Biomolecular Engineering University of Maryland College ParkMD20742 United States Department of Mechanical Engineering and Mechanics Drexel University PhiladelphiaPA19104 United States

ISBN: (纸本)9780964002494

We present a novel approach for the fabrication of hierarchical electrodes that integrates bottom-up nanostructure self-assembly and top-down microfabrication processes. The electrodes consist of virus-templated nanostructures self-assembled on three-dimensional micropillars. Active battery material (V2O5) is conformally deposited using atomic layer deposition (ALD) on the hierarchical micro/nano network. Electrochemical testing of these electrodes indicates a 3-fold increase in energy density compared to nanostructures alone, while maintaining the high power characteristics. Investigation of capacity scaling for varying active material thickness reveals underlying limitations and highlights the importance of our method in controlling both energy and power density with structural hierarchy. © 2012 TRF.

关键词： Actuators

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Social-Aware Routing for Wireless Mesh Networks

Social-Aware Routing for Wireless Mesh Networks

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IEEE Conference on Vehicular Technology (VTC)

作者： Shadi Saleh Basurra Yusheng Ji Marina De Vos Julian Padget Tim Lewis Simon Armour Department of Computer Science University of Bath UK Information Systems Architecture Science Research Division National Institute of Informatics Tokyo Japan Toshiba Research Europe Limited Bristol UK Department of Electrical and Electronic Engineering Bristol University UK

In wireless mesh networks (WMN), most routing algorithms apply broadcasting at some stage of the path discovery process. They thereby consume large chunks of the network throughput. Intelligent rebroadcast algorithms aim to reduce this overhead by calculating the usefulness of a rebroadcast and the likelihood of collisions. Unfortunately, this introduces latency and breaks the rebroadcast chain, resulting in reduced reachability. In this paper we present our Social-aware Routing Protocol with Parallel Collision Guidance Broadcasting for WMN (SCG). It reduces rebroadcasting without a loss in reachability and without a significant increase in latency. Our claims are validated through simulations comparing our algorithm with existing protocols.

关键词： Routing Routing protocols Broadcasting Delay Ad hoc networks Wireless mesh networks

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