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International Conference on Digital Signal Processing (DSP)

作者： JaeYoung Choi Wesley De Neve Yong Man Ro Konstantinos N. Plataniotis Image and Video Systems Laboratory Korea Advanced Institute of Science and Technology Daejeon South Korea Multimedia Laboratory The Edward S. Rogers Sr. Department of Electrical and Computer Engineering (ECE) University of Toronto Toronto ONT Canada

Automatic face annotation (or tagging) facilitates improved retrieval and organization of personal photos in online social networks. In this paper, we present a new collaborative face recognition (FR) method that aims to improve face annotation accuracy. The proposed method makes efficient use of multiple FR engines and databases that are distributed over an online social network. The performance of our collaborative face recognition method was successfully evaluated using the standard MPEG-7 VCE-3 data set and a set of real-world personal photos from the Web. The efficacy of the proposed method is demonstrated in terms of comparative annotation performance against non-collaborative approaches utilizing a single FR engine and a single database only.

关键词： Face Databases Social network services Context Feature extraction Communities Engines

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Laser-driven inertial ion focusing

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Physical Review E 2009年第1期79卷 015401(R)-015401(R)页

作者： H. B. Zhuo Wei Yu M. Y. Yu H. Xu X. Wang B. F. Shen Z. M. Sheng J. Zhang National Laboratory for Parallel and Distributed Processing School of Computer Science National University of Defense Technology Changsha 410073 China Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 China Institute for Fusion Theory and Simulation Zhejiang University Hangzhou 310027 China Institute for Theoretical Physics I Ruhr University Bochum D-44780 Germany Department of Physics Jiaotong University Shanghai 200240 China

A Hohlraum-like configuration is proposed for realizing a simple compact source for neutrons. A laser pulse enters a tiny thin-shelled hollow-sphere target through a small opening and is self-consistently trapped in the cavity. The electrons in the inner shell-wall region are expelled by the light pressure. The resulting space-charge field compresses the local ions into a thin layer that becomes strongly heated. An inward expansion of ions into the shell cavity then occurs, resulting in the formation at the cavity center of a hot spot of ions at high density and temperature, similar to that in inertial electrostatic confinement.

关键词： Trapped ions

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distributed H∞ consensus control for networks of multiple agents with linear coupling dynamics

Distributed H∞ consensus control for networks of multiple a...

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SICE Annual Conference

作者： Yang Liu Yingmin Jia Junping Du Fashan Yu Department of Systems and Control Beihang University Beijing China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan China

This paper is devoted to the consensus control for a network of autonomous agents with high-dimension linear coupling dynamics and subject to external disturbances. By transforming the consensus control problem into an H infin control problem, we propose a distributed state feedback protocol, and obtain conditions in terms of linear matrix inequalities (LMIs) to ensure the consensus with a prescribed H infin performance level for networks with zero and nonzero communication delays, respectively. Furthermore, the undetermined feedback matrix of the proposed protocol is also solved. A numerical example is included to validate the theoretical results.

关键词： Control systems Communication system control Protocols Multiagent systems Vehicle dynamics Automatic control Telecommunication control Electronic mail Linear feedback control systems State feedback

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The distributed diagnosis system of vehicles based on TH-OSEK embedded platform

The distributed diagnosis system of vehicles based on TH-OSE...

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2008 IEEE Vehicle Power and Propulsion Conference, VPPC 2008

作者： Yang, Qing Sun, Xiaomin Department of Computer Science and Technology State Key Laboratory of Intelligent Technology and Systems Tsinghua University Beijing 100084 China

ISBN: (纸本)9781424418497

We proposed a fully-software distributed failure diagnosis system for vehicles based on the TH-OSEK realtime embedded OS platform we previously developed. The diagnosis system puts all the ECUs into a virtual logical ring and uses the MR(Maintain Ring) algorithm and OL(Off Line) algorithm to detect a faulted ECU and isolate it without destroying the structure of the logical ring. When a faulted ECU is recovered, with the proposed algorithms the system can also add it to the logical ring by updating the predecessor and successor of every node in the ring in time. The experiment result on the TH-OpenECU platform is also presented which shows that the system works well and usefulness for diagnosing the faults of vehicles. © 2008 IEEE.

关键词： Vehicles

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Modelling with relational calculus of object and component systems - RCOS

Modelling with relational calculus of object and component s...

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作者： Chen, Zhenbang Hannousse, Abdel Hakim Van Hung, Dang Knoll, Istvan Li, Xiaoshan Liu, Zhiming Liu, Yang Nan, Qu Okika, Joseph C. Ravn, Anders P. Stolz, Volker Yang, Lu Zhan, Naijun International Institute for Software Technology United Nations University China Faculty of Science and Technology University of Macau Department of Computer Science Aalborg University Denmark Lab. of Computer Science Institute of Software CAS China National Laboratory for Parallel and Distributed Processing China

ISBN: (纸本)3540852883

This chapter presents a formalization of functional and behavioural requirements, and a refinement of requirements to a design for CoCoME using the Relational Calculus of Object and Component systems (rCOS). We give a model of requirements based on an abstraction of the use cases described in Chapter 3.2. Then the refinement calculus of rCOS is used to derive design models corresponding to the top level designs of Chapter 3.4. We demonstrate how rCOS supports modelling different views and their relationships of the system and the separation of concerns in the development. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： Calculations

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A distributed location algorithm for underground miners based on rescue robot and coal-mining wireless sensor networks

A distributed location algorithm for underground miners base...

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2008 IEEE International Conference on Robotics, Automation and Mechatronics, RAM 2008

作者： Pei, Zhongmin Deng, Zhidong Department of Computer Science Tsinghua University Beijing China State Key Laboratory of Intelligent Technology and Systems Tsinghua University Beijing China

ISBN: (纸本)9781424416769

Rescue robot places an important role when any severe disaster in underground coal mine happens. To locate and keep a track of miners working in a well becomes an impossible completed mission once the well communication infrastructure is all destroyed due to the disasters such as fire damp explosion. Wireless sensor networks, together with underground mine rescue robot provide a potential solution for the challenges in terms of many unique advantages of the wireless sensor networks like random deployments of nodes and network self-organized multi-hops. In this paper, a new coal-mining wireless sensor network (C-WSN) is developed. We propose a distributed system architecture and an improved location algorithm for rescue robot based on radio signal strength indicator (RSSI). The experimental results are analyzed. Finally, we draw conclusion and address the future work. ©2008 IEEE.

关键词： Location

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Perfect many-to-one teleportation with stabilizer states

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Physical Review A 2008年第3期77卷 032324-032324页

作者： Guoming Wang Mingsheng Ying State Key Laboratory of Intelligent Technology and Systems Department of Computer Science and Technology Tsinghua University Beijing 100084 China

We study the possibility of performing perfect teleportation of unknown quantum states from multiple senders to a single receiver with a previously shared stabilizer state. In the model we considered, the utilized stabilizer state is partitioned into several subsystems and then each subsystem is distributed to a distinct party. We present two sufficient conditions for a stabilizer state to achieve a given nonzero teleportation capacity with respect to a given partition plan. The corresponding teleportation protocols are also explicitly given. Interestingly, we find that even mixed stabilizer states are also useful for perfect many-to-one teleportation. Finally, our work provides a perspective from stabilizer formalism to view the standard teleportation protocol and also suggests a technique for analyzing teleportation capability of multipartite entangled states.

关键词： Electronic states

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Deterministic distributed dense coding with stabilizer states

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Physical Review A 2008年第3期77卷 032306-032306页

作者： Guoming Wang Mingsheng Ying State Key Laboratory of Intelligent Technology and Systems Department of Computer Science and Technology Tsinghua University Beijing 100084 China

We consider the possibility of using stabilizer states to perform deterministic dense coding among multiple senders and a single receiver. In the model we studied, the utilized stabilizer state is partitioned into several subsystems and then each subsystem is held by a distinct party. We present a sufficient condition for a stabilizer state to be useful for deterministic distributed dense coding with respect to a given partition plan. The corresponding protocol is also constructed. Furthermore, we propose a method to partially solve a more general problem of finding the set of achievable alphabet sizes for an arbitrary stabilizer state with respect to an arbitrary partition plan. Finally, our work provides a perspective from the stabilizer formalism to view the standard dense coding protocol and also unifies several previous results in a single framework.

关键词： Atomic physics

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A complex system inspired theoretical formalism for data management in Peer-to-Peer grids

A complex system inspired theoretical formalism for data man...

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International Symposium on Parallel and distributed Processing (IPDPS)

作者： Vijay Srinivas Agneeswaran D Janakiram Distributed Information Systems Laboratory (LSIR) School of Information and Communication Sciences Swiss Federal Institute of Technology Switzerland Distributed & Object Systems Laboratory Department of Computer Science & Engineering Indian Institute of Technology Chennai India

This paper has provided a first step towards solid theoretical foundations of large scale distributed systems. It has focused on applying complex systems theories SOC and HOT to data management solutions in P2P grids. It argues that replica management solution over OpenDHT, the state of the art DHT deployment, is based on SOC and consequently achieves robustness even in the presence of churn but not optimal performance.

关键词： Peer to peer computing Grid computing Large-scale systems technology management distributed information systems computer science System recovery Buildings Frequency synchronization Clocks

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Market-Oriented Cloud Computing: Vision, Hype, and Reality for Delivering IT Services as Computing Utilities

Market-Oriented Cloud Computing: Vision, Hype, and Reality f...

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IEEE International Conference on High Performance Computing and Communications (HPCC)

作者： Rajkumar Buyya Chee Shin Yeo Srikumar Venugopal Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

This keynote paper: presents a 21 st century vision of computing; identifies various computing paradigms promising to deliver the vision of computing utilities; defines Cloud computing and provides the architecture for creating market-oriented Clouds by leveraging technologies such as VMs; provides thoughts on market-based resource management strategies that encompass both customer-driven service management and computational risk management to sustain SLA-oriented resource allocation; presents some representative Cloud platforms especially those developed in industries along with our current work towards realising market-oriented resource allocation of Clouds by leveraging the 3rd generation Aneka enterprise Grid technology; reveals our early thoughts on interconnecting Clouds for dynamically creating an atmospheric computing environment along with pointers to future community research; and concludes with the need for convergence of competing IT paradigms for delivering our 21 st century vision.

关键词： Meteorology Cloud computing Resource management Grid computing Quality of service Industries Monitoring

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