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International Conference on computer and Information Technology (CIT)

作者： Eun-Sun Cho Yun-Sam Kim Manpyo Hong We-Duke Cho Department of Computer Science and Engineering Chungnam National University Daejeon South Korea College of Information &Technology Ajou University Suwon South Korea Center of excellence for Ubiquitous System Ajou University Suwon South Korea

'Location cloaking' allows services to access larger location description (for instance, 'Austria'), instead of fine grained location information (for instance, 'a restaurant in Tyrol') to preserve privacy, while keeping any useful services (for instance, 'automatic language-translation') continuing. This paper proposes an extension of location/spatial cloaking technique for RDF data based on view-based access control. Our system starts from a fine-grained view defining method, making use of structural characteristics of interlinked RDF data. It supports cloaking of non-hierarchical data by allowing abstract hierarchy definitions of resources and views. We implement a prototype system named 'Husk' on top of an RDF repository system.

关键词： Access control Resource description framework Data privacy Protection Data security Information security Pervasive computing Information technology Educational institutions computer science

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Knowledge Management in the Global Software engineering Environment

Knowledge Management in the Global Software Engineering Envi...

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International Conference on Global Software engineering (ICGSE)

作者： Ita Richardson Miriam O'Riordan Valentine Casey Bridget Meehan Ivan Mistrik Lero-The Irish Software Engineering Research Centre University of Limerick Limerick Ireland Software System Research Centre Bournemouth University Dorset UK Department of Computer Science and Information Systems University of Limerick Limerick Ireland

In this paper we consider the importance of explicit knowledge management, taking into account the growth of global software engineering and the importance of corporate knowledge. We conclude by suggesting specific areas of research which should be considered important for the implementation of knowledge management within global software engineering environments.

关键词： Knowledge management Software engineering Programming Environmental management Globalization Costs engineering management Software testing system testing Software systems

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WinPLC control from MATLAB/Simulink Environment throw the Multiplatform Control system REX by Secured Wireless Network

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IFAC Proceedings Volumes 2009年第1期42卷 13-16页

作者： Ondrej Krejcar Petr Konarik Tutsch Michal VSB-Technical University of Ostrava Faculty of Electrical Engineering and Computer Science Department of Measurement and Control Centre for Applied Cybernetics 17. listopadu 15 708 33 Ostrava- Poruba VSB-Technical University of Ostrava Faculty of Mechanical Engineering Department of Control System and Instrumentation 17. listopadu 15 708 33 Ostrava- Poruba

Paper deals with industrial realization of feedback control of demanding applications on their control, control algorithms and visualization together with design, implementation and real time control from MATLAB/Simulink Environment. Paper shows direct connection and implementation way of designed control schemas of prepared applications to an industrial WinPLC. Described is a way to produce a permanent solution in control applications that are fully prepared, designed and implemented directly from MATLAB/Simulink to the target control platform. As a part, the mentioned solution is using a multiplatform control system REX as a bridge between MATLAB and target platforms. These methods allow minimizing costs of development of control of applications, because it produces target permanent realizations in comparison to classical development methods that usually need expensive real time measurement cards and produce only one purpose development solution.

关键词： WinPLC Matlab Simulink Control system REX Control Real Time

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Conditional IMS Learning Design Generation Using User Modeling and Planning Techniques

Conditional IMS Learning Design Generation Using User Modeli...

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International Conference on Advanced Learning Technologies (ICALT)

作者： Jorge Hernandez Silvia Baldiris Olga C. Santos Ramón Fabregat Jesus G. Boticario System Engineering Program Corporación Universitaria de la Costa Colombia Institute of Informatics and Aplications (IliA) Universidad de Girona Spain ADeNu Research Group Artificial Intelligence Department Computer Science School UNED (Spanish National University of Distance Education) Spain aDeNu Research Group Computer Science School UNED

Active modeling is required in learning settings to cope with the dynamic evolution of the knowledge, since learners competences evolves over time as they participate in the course activities. Moreover, one of the main issues in a competence based eLearning process is to deliver personalized instructional designs adjusted to both 1) intrinsic characteristics of users (i.e. learning styles) and 2) the desired and achieved competences in the learning process (i.e. specific and generic competences). This delivery includes the adaptation of the content and the activities in a learning scenario based on a dynamic user model that evolves according to user interactions. In this paper, an approach to support Conditional Plans Generation (IMS Learning Designs) in the context of a virtual learning environment is presented. The process is supported by a pervasive usage of standards and specifications (IMS family of specifications) in conjunction with an integral user modeling.

关键词： Learning Artificial intelligence Process planning Monitoring Technology planning Design engineering Knowledge engineering systems engineering and theory Informatics computer science

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Programmable and Scalable Per-Flow Traffic Management Scheme Using a Control Server

Programmable and Scalable Per-Flow Traffic Management Scheme...

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IEEE International Conference on Communications (ICC)

作者： Y. Shinohara H. Shimonishi H. Tode K. Murakami Department of Information Networking Graduate School of Information Science and Technology Osaka University Suita Osaka Japan System Platforms Research Laboratory NEC Corporation Limited Kawasaki Kanagawa Japan Department of Computer Science and Intelligent Systems Graduate School of Engineering Osaka Prefecture University Sakai Osaka Japan

We propose a programmable and scalable traffic management scheme. Programmable traffic management at high-speed routers is difficult because programmability and high-speed packet processing have involved a serious tradeoff. To attain both, the new scheme combines control programs at a control server and simple packet handling functions, such as sampling packet headers and discarding packets, at routers. Therefore, by installing appropriate control programs into the server, a variety of active queue management schemes, per-flow bandwidth management schemes, DoS mitigation schemes, and so on, are achieved. One of the main contributions of this paper is its proposal of a statistical scheme for handling flows. As only a fraction of complete flow information stored at the control server is loaded into the router's flow table and it is replaced cyclically, the proposed scheme scales more than the router's flow table capacity. Our simulation results indicate that the scheme provides efficient traffic management, per-flow WFQ emulation in our example, even with very small flow tables compared to the number of concurrently active flows. Furthermore, we discuss implementation issues with the proposed scheme and reveal that the processing cost at the server and router is sufficiently small for use with 10 Gbps links.

关键词： Traffic control Quality of service Communication system traffic control Electronic mail Costs Probability computer network management Technology management engineering management Network servers

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Robotics-mechatronics design competition in Kyushu area, Japan

Robotics-mechatronics design competition in Kyushu area, Jap...

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SICE Annual Conference

作者： Taisuke Sakaki Takanori Kiyota Hitoshi Kino Shinichi Sagara Ryuichi Oguro Shunji Moromugi Keiji Imado Hidetaka Ikeuchi Manabu Fukushima Takeshi Ikeda Kanta Aoki Nobuhiro Ushimi Department of Engineering Kyushu Sangyo University Fukuoka Japan Department of Mechanical Systems Engineering University of Kitakyushu Kitakyushu Japan Department of Intelligent Mechanical Engineering Fukuoka Institute of Technology Fukuoka Japan Department of Control Engineering Kyushu Institute of Technology Kitakyushu Japan Department of Computer Science and System Engineering Kyushu Institute of Technology Lizuka Japan Department of Mechanical Systems Engineering Nagasaki University Nagasaki Japan Department of Architecture and Mechatronics Oita University Oita Japan Department of Media Technology Nippon Bunri University Oita Japan Department of Mechanical Engineering Kyushu University Fukuoka Japan Department of Art Kyushu Sangyo University Fukuoka Japan

We describe a unique competition based on the novel concept of robotics and mechatronics products that included evaluation of the products' engineering function and interface design. Seventy-seven students of eleven teams from seven universities in the Kyushu area participated in the competition, whose subject was ldquoHealth care, life supporting and communication or other technical aids for the elderly or *** Many of the plans presented ideas that balanced function and design, showing the results of collaboration among students studying engineering and students studying product design.

关键词： Design engineering Electronic mail Mechatronics Educational institutions Senior citizens Service robots systems engineering and theory Art Educational robots Collaborative work

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A layered-based fusion-based approach to detect and track the movements of pedestrians through partially occluded situations

A layered-based fusion-based approach to detect and track th...

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IEEE Symposium on Intelligent Vehicle

作者： Yajun Fang Sumio Yokomitsu Berthold K.P. Horn Ichiro Masaki Université de Picardie Jules Verne Laboratoire des Technologies Innovantes (LTI EA 3899) Massachusetts Institute of Technology Cambridge MA USA Electrical Engineering and Computer Science Department Massachusetts Institute of Technology Cambridge MA USA Panasonic System Solutions Company Panasonic Corporation

ISBN: (纸本)9781424435036

To obtain perception abilities, conventional methods independently detect static and dynamic obstacles, and estimate their related information, which is not quite reliable and computationally heavy. We propose a fusion-based and layered-based approach to systematically detect dynamic obstacles and obtain their location and timing information. The layered-based concept helps us to first search pedestrians in horizontal dimension based on transitional peaks in the defined projection-curves, and then search in vertical dimension. Converting a typical 2D search problem into two 1D search problems significantly decreases the computational load. The fusion-based obstacle detection fuses the information from initial segmentation and dynamic tracking model to avoid complicated tracking schemes. The methodologies take advantage of connection between different information, and increase the accuracy and reliability of obstacle segmentation and tracking. The search mechanism works for both visible and infrared sequences, and is specifically effective to track the movements of pedestrians in complicated environments such as human intersecting and conclusion, thus improving environment understanding abilities and driving safety.

关键词： Tracking Vehicle dynamics Intelligent transportation systems Humans Image segmentation Infrared detectors Sensor fusion Cameras Search problems Safety

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Perimeter-Search-Based Semi-Join Query Optimization Algorithm in Data-Sharing Environment

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电子学报(英文版) 2009年第4期

作者： WANG Xiaoqing WANG Xiaoqing FANG Youyuan FANG Youyuan ZHENG Yanxing ZHENG Yanxing ZONG Jianjian ZONG Jianjian GU Tianyang GU Tianyang .Department of Computer Science and Technology Tsinghua University Beijing 100084 China .Department of Computer Science and Technology Tsinghua University Beijing 100084 China .Beijing Institute of System Engineering Beijing 100101 China .Beijing Institute of System Engineering Beijing 100101 China

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A Density-Based Algorithm for Redundant Reader Elimination in a RFID Network

A Density-Based Algorithm for Redundant Reader Elimination i...

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2nd International Conference on Future Generation Communication and Networking

作者： Yu, Kun-Ming Yu, Chang Wu Lin, Zheng-Yi Department of Computer Science and Information Engineering Taiwan Department of Information Management System Taiwan

ISBN: (纸本)9781424440085

Radio frequency identification (RFID) technology has become more sophisticated in recent years and is being developed rapidly for a variety of applications. The problem of eliminating redundant readers has been reduced to the minimum cover problem and proved to be NP-hard In this paper, a Density-based Redundant Reader Elimination Algorithm (DRRE) is presented;DRRE eliminates the redundant readers without influencing the number of usable tags. Simulation results demonstrate that the DRRE algorithm performed better in all instances in a variety of environments compared with other algorithms. In a densely deployed RFID network, the DRRE algorithm detected 85% more redundant readers than others.

关键词： Radio frequency identification (RFID)

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A clustering method based on a self-organizing map showing the separation and combination of code vectors

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Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers 2009年第7期63卷 991-998页

作者： Imamurat, Hiroki Fujimura, Makoto Kuroda, Hideo School of Information System Department of Engineering Soka University 1-236 Tangi-cho Hacbioji City Tokyo 192-8577 Japan Dept. of Computer and Information Sciences Nagasaki University 1-14 Bunkyou-mach Nagasaki City 852-8521 Japan Graduate School of Science and Technorogy Nagasaki University 1-14 Bunkyou-mach Nagasaki City 852-8521 Japan

A method is proposed for clustering data that results in more accurate clustering when clusters are close to each other. The method takes into account the continuity of the data by using a self-organizing map showing the separation and combination of code vectors. Using this map reduces the dependence of fitting of code vectors. The proposed method can be thus used to obtain accurate clustering.

关键词： Self organizing maps

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