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2009 IEEE Workshop on Signal Processing systems, SiPS 2009

作者： Hurskainen, Heikki Lohan, Elena-Simona Nurmi, Jari Sand, Stephan Mensing, Christian Detratti, Marco Tampere Univ. of Technology Dept. of Computer Systems FI-33101 Tampere Finland Dept. of Communications Engineering P.O. Box 553 FI-33101 Tampere Finland Institute of Communications and Navigation Oberpfaffenhofen 82234 Wessling Germany Acorde Technologies S.A. Centro de Desarrollo Tecnologico Avda. de los Castros s/n 39005 Santander Spain

ISBN: (纸本)9781424443352

GRAMMAR (EC FP7) is a project aiming to deliver IP for future Galileo mass market receivers. One of the outcomes of this project will be an advanced Galileo receiver prototype. In this paper we present the research for finding the optimal dual frequency option for a Galileo mass market receiver. We discuss the impact of multiple frequencies on baseband algorithms and the implementation issues of a dual-frequency baseband. From the analysis results, we draw the following conclusions: E1/E5a combination is the optimal dual-frequency solution for Galileo;a common dual-frequency baseband architecture with flexible channels seems to be the best implementation approach for a Galileo E1/E5a dual-frequency receiver. ©2009 IEEE.

关键词： Commerce

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Localizing Multiple odor Sources in a dynamic environment based on Modified niche Particle Swarm Optimization with flow of wind

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WSEAS Transactions on systems 2009年第11期8卷 1187-1196页

作者： Jatmiko, W. Nugraha, A. Effendi, R. Pambuko, W. Mardian, R. Sekiyama, K. Fukuda, T. Faculty Computer Science University of Indonesia Depok West Java 16424 Indonesia Dept. of Micro-Nano Systems Engineering Nagoya University Chikusa-ku Nagoya Japan

A new algorithm based on Modified Particle Swarm Optimization (MPSO) that follows is a local gradient of a chemical concentration within a plume and follows the direction of the wind velocity is investigated. Moreover, the niche characteristic is adopted to solve the multi-peak and multi-source problem. Simulations results demonstrate that the new approach is reliable for The Advection-Diffusion odor robotic model. Finally, the statistical analysis shows this new approach is technically sound.

关键词： Particle swarm optimization (PSO)

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Age matters: Bridging the generation gap through technology-mediated interaction

Age matters: Bridging the generation gap through technology-...

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27th International Conference Extended Abstracts on Human Factors in Computing systems, CHI 2009

作者： Harley, Dave Vetere, Frank Kurniawan, Sri H. Fitzpatrick, Geraldine Interact Lab. University of Sussex Brighton BN1 9PH United Kingdom Dept. of Information Systems University of Melbourne 111 Barry St. Carlton VIC Australia Computer Engineering UC Santa Cruz Santa Cruz CA United States

ISBN: (纸本)9781605582474

Internet-based, mobile and pervasive technologies provide the means for older people to establish and maintain intergenerational relationships over long distances. However the significance of this intergenerational context has been largely ignored when considering potential interactions and the design of new technologies. This workshop aims to explore what the important issues are when considering intergenerational contact as a significant context for design. The overarching objective of this workshop is to identify key research themes in respect of intergenerational communication and its implications for the design of interactive systems.

关键词： Human engineering

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Novelty detection and 3D shape retrieval based on Gaussian Mixture Models for autonomous surveillance robotics

Novelty detection and 3D shape retrieval based on Gaussian M...

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2009 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： P. Núñez P. Drews R. Rocha M. Campos J. Dias ISIS Group Universidad de Málaga Spain Dept. Tecnologia de los Computadores y las Comunicaciones Universidad de Extremadura Spain Institute of Systems and Robotics Department Electrical and Computer Engineering University of Coimbra Portugal Dept. Computer Science Federal University of Minas Gerais Brazil Dept. Electrical and Computer Engineering University of Coimbra Portugal

This paper describes an efficient method for retrieving the 3-dimensional shape associated to novelties in the environment of an autonomous robot, which is equipped with a laser range finder. First, changes are detected over the point clouds using a combination of the Gaussian mixture model (GMM) and the earth mover's distance (EMD) algorithms. Next, the shape retrieval is achieved using two different algorithms. First, new samplings are generated from each Gaussian function, followed by a random sampling consensus (RANSAC) algorithm to retrieve geometric primitives. Furthermore, a new algorithm is developed to directly retrieve the shape according to the mathematical space of Gaussian mixture. In this paper, the set of geometric primitives has been limited to the set C = {sphere, cylinder, plane} . The two shape retrieval methods are compared in terms of computational cost and accuracy. Experimental results in various real and simulated scenarios demonstrate the feasibility of the approach.

关键词： Shape Surveillance Intelligent robots Mobile robots Simultaneous localization and mapping Clouds Sampling methods Navigation Robotic assembly Change detection algorithms

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REST-based management of loosely coupled services 09

REST-based management of loosely coupled services

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18th International World Wide Web Conference, WWW 2009

作者： Ludwig, Heiko Laredo, Jim Bhattacharya, Kamal Pasquale, Liliana Wassermann, Bruno IBM TJ Watson Research Center 19 Skyline Drive Hawthorne NY 10532 United States Politecnico di Milano Dipartimento di Elettronica e Informazione via Golgi 40 20133 Milano Italy University College London Software Systems Engineering Group Dept. of Comp. Science London United Kingdom

ISBN: (纸本)9781605584874

Applications increasingly make use of the distributed platform that the World Wide Web provides - be it as a software-as-a-Service such as ***, an application infrastructure such as ***, or a computing infrastructure such as a "cloud". A common characteristic of applications of this kind is that they are deployed on infrastructure or make use of components that reside in different management domains. Current service management approaches and systems, however, often rely on a centrally managed configuration management database (CMDB), which is the basis for centrally orchestrated service management processes, in particular change management and incident management. The distribution of management responsibility of WWW based applications requires a decentralized approach to service management. This paper proposes an approach of decentralized service management based on distributed configuration management and service process co-ordination, making use RESTful access to configuration information and ATOM-based distribution of updates as a novel foundation for service management processes. Copyright is held by the International World Wide Web Conference Committee (IW3C2).

关键词： Application programs

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A Comparison of Multicast Adaptive Techniques in Reliable Delivery over GEO Satellite Networks

A Comparison of Multicast Adaptive Techniques in Reliable De...

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IEEE Vehicular Technology Conference

作者： A. Sali G. Acar B. Evans G. Giambene Dept. of Computer and Communication Systems Faculty of Engineering Universiti Putra Malaysia Centre for Communication Systems Research University of Surrey CNIT-Universitadegli Studi di Siena Via Roma

ISBN: (纸本)9781424425167

In this paper, we compare two multicast adaptive techniques for reliable data delivery in GEO satellite networks. Specifically, a channel-aware scheduling algorithm is compared with a multicast link adaptation technique, in the face of fluctuating channel conditions in downlink. The aim of the techniques is to maximise system throughput whilst increasing resource utilization. The scheduling technique is implemented within one forward bearer subtype, whereas the link adaptation mechanism considers transmission rates from a list of possible forward bearer subtypes. Simulation results are analysed and it is found that multicast link adaptation technique outperforms channel-aware scheduling algorithm, in terms of reduced session delay and retransmitted number of segments.

关键词： Channel-aware scheduling Link adaptation Reliable multicast transmission Adaptive transmissions GEO satellite networks Adaptive transmission SATELLITE NETWORKS Multicast Genetically engineered organisms TRANSMISSION RATE reliability data

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Saving Electrical Power in a Surveillance Environment

Saving Electrical Power in a Surveillance Environment

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International Conference on Advances in Pattern Recognition (ICAPR)

作者： Souvik Sen Amit Kumar Das Shyama Prosad Chowdhury Department of Electrical & Computer Engineering Duke University USA CST Dept. BESU Shibpur Intelligent Systems & Control Queen''s University UK

This paper proposes a smart video surveillance system with real-time moving object (primarily human) detection and identification for solving the problem of excessive power consumption in indoor public places. The proposed detection system is able to handle several known constraints such as changing illumination conditions, occlusion, clutter or even irrelevant extraneous motion. It keeps track of the number of humans in the vicinity and takes measures to gradually increase or decrease the luminosity depending on the number of people within its sight.

关键词： Humans Object detection Video surveillance Lighting Control systems Real time systems Object recognition Application software Video sequences Pattern recognition

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Stabilization of Boolean Control Networks

Stabilization of Boolean Control Networks

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Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference

作者： Daizhan Cheng Jiang B.Liu Institute of Systems Science Chinese Academy of Sciences State Key Lab of Software Engineering Wuhan University Dept.of Computer Science & Info.Sys. Bradley University

The stability of Boolean networks and the stabilization of Boolean control networks are *** semi-tensor product of matrices and the matrix expression of logic,the dynamics of a Boolean(control) network can be converted to a discrete time linear(bilinear) dynamics,called the algebraic form of the Boolean(control) *** provide a framework for this *** results consist of two parts:(i) Using logic coordinate transformation,the known sufficient condition based on incidence matrix has been *** is also used in stabilizer design.(ii)Based on algebraic form,necessary and sufficient conditions for stability of Boolean networks and stabilization of Boolean control networks respectively are obtained.

关键词： Boolean(control) system stability stabilization semi-tensor product of matrices

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Machine learning based online performance prediction for runtime parallelization and task scheduling

Machine learning based online performance prediction for run...

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International Symposium on Performance Analysis of systems and software, ISPASS 2009

作者： Li, Jiangtian Ma, Xiaosong Singh, Karan Schulz, Martin De Supinski, Bronis McKee, Sally A. Dept. of Computer Science North Carolina State University Raleigh NC 27606 United States Computer Science and Mathematics Division Oak Ridge National Laboratory Oak Ridge TN 37831 United States Computer Systems Laboratory Cornell University Ithaca NY 14850 United States Center for Applied Scientific Computing Lawrence Livermore National Laboratory Livermore CA 94550 United States Department of Computer Science and Engineering Chalmers University of Technology Göteborg Sweden

ISBN: (纸本)9781424441846

With the emerging many-core paradigm, parallel programming must extend beyond its traditional realm of scientific applications. Converting existing sequential applications as well as developing next-generation software requires assistance from hardware, compilers and runtime systems to exploit parallelism transparently within applications. These systems must decompose applications into tasks that can be executed in parallel and then schedule those tasks to minimize load imbalance. However, many systems lack a priori knowledge about the execution time of all tasks to perform effective load balancing with low scheduling overhead. In this paper, we approach this fundamental problem using machine learning techniques first to generate performance models for all tasks and then applying those models to perform automatic performance prediction across program executions. We also extend an existing scheduling algorithm to use generated task cost estimates for online task partitioning and scheduling. We implement the above techniques in the pR framework, which transparently parallelizes scripts in the popular R language, and evaluate their performance and overhead with both a realworld application and a large number of synthetic representative test scripts. Our experimental results show that our proposed approach significantly improves task partitioning and scheduling, with maximum improvements of 21.8%, 40.3% and 22.1% and average improvements of 15.9%, 16.9% and 4.2% for LMM (a real R application) and synthetic test cases with independent and dependent tasks, respectively. © 2009 IEEE.

关键词： Scheduling algorithms

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Robust Model Predictive Control of continuous-time sampled-data nonlinear systems with Integral Sliding Mode

Robust Model Predictive Control of continuous-time sampled-d...

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European Control Conference (ECC)

作者： M. Rubagotti D.M. Raimondo A. Ferrara L. Magni Dept. of Computer Engineering and Systems Science University of Pavia Pavia Italy Automatic Control Laboratory Swiss Federal Institute of Technology Zürich Switzerland

A hierarchical Nonlinear Model Predictive Control (NMPC) scheme with guaranteed Input-to-State-practical-Stability (ISpS) is proposed. The controller is formed by an Integral Sliding Mode (ISM) controller and a NMPC one. The ISM, relying on the knowledge of the nominal continuous-time model of the system and of the piecewise constant control signal generated by the NMPC produces a control action aimed at reducing the difference between the dynamics of the nominal closed-loop system and the actual evolution of the state. The NMPC in this way can be designed based on a system with reduced uncertainty. In order to prove the stability of the overall control scheme, some general Regional ISpS results for continuous-time systems are proven.

关键词： Robustness Closed loop systems Uncertainty Stability analysis Economic indicators Manifolds Predictive control

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