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International Conference on Internet and Web Applications and Services (ICIW)

作者： Shahab Mokarizadeh Alberto Grosso Mihhail Matskin Peep Kungas Abdul Haseeb ICT School Royal Institute of Technology Sweden Communication Computer and System Science Department Universita degli Studi di Genova Italy Information and Computer Science Department Norwegian University of Science and Technology Norway

In this paper we demonstrate how the Web services based solutions can be effectively utilized and integrated into robotic world. In particular, we consider robotic systems where overall control is not embedded into any of the robots and the local behavior of each robot is loosely dependent on behavior of other robots. We propose an architecture for swarm action planning based on Web services paradigm exploiting a problem ontology for service discovery, linear logic based service composition for action planning and a task allocation layer for finding the most suitable robot to perform an action. In our solution all entities in the system expose their functionalities as Web services and allow dynamic service discovery and selection.

关键词： Semantic Web Multirobot systems Robot kinematics Web services Ontologies Software systems Communication system control Robotics and automation Application software Decision making

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Architecture Level Energy Modeling and Optimization for Multi-Ported Giga-Hz Physical Register File

Architecture Level Energy Modeling and Optimization for Mult...

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International Conference on Networking, Architecture, and Storage (NAS)

作者： Ge Zhang Xu Yang Yiwei Zhang Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy and Sciences Beijing China Department of Information and Technology University of International Relations UIR Beijing China

In modern high performance microprocessors, multi-ported register-files are commonly used and critical in both performance and energy consumption. As capability and issue width of register-file grows, its energy consumption increases rapidly. Much prior work about energy-efficient register-file design is focusing on various low levels except for architecture level. In this paper, an accurate architectural level energy model for register-file is proposed and verified, based on which some efficient and practical improvements are presented to save energy without changing the internal circuits or structure of register-file. We implemented a full-customized 64-bit width 64-entry depth physical register-file with 8 read ports and 4 write ports, whose power is as low as 20 mW, in a 1 GHz 4-issue out-of-order 64-bit MIPS microprocessor, Godson-2 [1], using 90 nm CMOS process. 56.0% of reading energy and 20.3% of writing energy can be saved.

关键词： Circuits computer architecture Energy consumption Microprocessors Registers Energy efficiency Out of order CMOS process Writing Semiconductor device modeling

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Improvement of Multi-hop Packet Transmission Scheduling in WDM Optical Star Networks

Improvement of Multi-hop Packet Transmission Scheduling in W...

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International Symposium on Parallel Architectures, Algorithms and Networks (ISPAN)

作者： Hann-Jang Ho JungChun Liu SingLing Lee Department of Computer Science and Information Engineering Wu Feng Institute of Technology Chiayi Taiwan Department of Management Information System Far East University Tainan County Taiwan Department of Computer Science and Information Engineering National Chung Cheng University Chiayi Taiwan

This paper addresses the design of multi-hop packet transmissions for the All-to-All Broadcast (AAB) problem in a Wavelength Division Multiplexing (WDM) optical star network. To decrease the optical-electronic-optical (O/E/O)transformations in multi-hop scheduling, the maximum of hop distances of each packet transmission is limited to a constant. Each node consists of a tunable transmitter and a fixed-tuned receiver (TT-FR configuration), and each tunable transmitter needs a non-negligible tuning latency to switch between different wavelengths. To decrease the influence of the tuning latency in multi-hop scheduling and the time of tuning operations on each transmitter, we adopt simpler methods for constructing less logical topologies when all tunable transmitters change their transmitted wavelengths to other channels in scheduling concurrently. Our multi-hop scheduling has not only a shorter schedule period but also a less number of transmitted wavelengths used.

关键词： Spread spectrum communication Wavelength division multiplexing WDM networks Optical fiber networks Optical transmitters Optical receivers Delay Optical design Broadcasting Optical tuning

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Scalable Multi-Hop Scheduling with Overlapping the Tuning Latency in WDM Optical Star Networks

Scalable Multi-Hop Scheduling with Overlapping the Tuning La...

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IEEE International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT)

作者： SingLing Lee JungChun Liu Hann-Jang Ho Department of Computer Science and Information Engineering National Chung Cheng University Chiayi Taiwan Department of Management Information System Far East University Tainan County Taiwan Department of Computer Science and Information Engineering Wu Feng Institute of Technology Chiayi Taiwan

For the current technique, the tuning latency ¿ on each transmitter is more than the packet transmission time, and it cannot be ignored in packet scheduling. So in order to reduce the serious affection of tuning operations, we propose the multi-hop model for the All-to-All Broadcast (AAB) problem in WDM optical star networks with N nodes and w available wavelengths, which the number of hop distance for packet transmissions is limited to a constant ¿. Our strategy can overlap the tuning latency in multi-hop scheduling, and reduce the number of tuning operations on each transmitter to 2¿(w - 1)/¿¿. If ¿ can be completely covered in scheduling, the schedule length is k(k - 1) + ¿ + 2¿(w-1)/¿¿[k 2 ¿(¿+1)/2] time slots, where k = N/w. Otherwise, it is k(k - 1) + ¿ + 2¿(w-1)/¿¿[k¿(¿+1)/2 + ¿] slots. Our proposed method is very suitable for the scalable WDM networks if the number of wavelength is fixed, and its multi-hop schedule length is shorter than that of other scheduling approaches if k is small or ¿ is larger.

关键词： Spread spectrum communication Optical tuning Delay Wavelength division multiplexing WDM networks Optical fiber networks Optical transmitters Scheduling algorithm Optical receivers Broadcasting

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Application of Improved Differential Evolution Approach on Parameter Identification of Chen and Lü Chaotic systems

Application of Improved Differential Evolution Approach on P...

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GCIS, WRI Global Congress on Intelligent systems

作者： Wen-Hsien Ho Shinn-Horng Chen Jyh-Horng Chou Tung-Kuan Liu Ming-Der Jean Cheng-Ming Li Department of Medical Information Management Kaohsiung Medical University Taiwan Department of Mechanical Engineering National Kaohsiung University of Applied Sciences Taiwan Institute of System Information and Control National Kaohsiung First University of Science and Technology Taiwan Department of Electrical Engineer Yung Ta College of Technology and Commerce Taiwan Department of Vehicles Engineer Yung Ta College of Technology and Commerce Taiwan

In this paper, a Taguchi-sliding-level differential evolution algorithm (TSLDEA) is proposed to use for finding the actual parameters of Chen and Lu chaotic systems. The TSLDEA, a powerful global numerical optimization method, combines the differential evolution algorithm (DEA) with the Taguchi-sliding-level (TSL) method. The TSL method is fused in the crossover operation of a DEA. Then, the systematic reasoning ability of the TSL method is incorporated in the crossover operation of a DEA to select the better offspring to achieve the crossover, and consequently enhance the DEA. Therefore, the TSLDEA can be more robust, statistically sound, and quickly convergent. Two illustrative examples of parameter identification of Chen and Lu chaotic systems are given to demonstrate the applicability of the proposed TSLDEA.

关键词： Parameter estimation Chaos Chaotic communication Evolution (biology) Robustness Medical control systems Control systems Automotive engineering Business Optimization methods

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Special issue on artificial immune systems

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Journal of Mathematical Modelling and Algorithms 2009年第2期8卷 101-102页

作者： Bentley, Peter J. Lee, Doheon Department of Computer Science University College London London WC1E 6BT Malet Place United Kingdom Bio-Information System Laboratory Department of Bio and Brain Engineering Korea Advanced Institute of Science and Technology Yuseong-gu Daejeon 305-701 73-1 Guseong-dong South Korea

There are many desirable features of natural systems: adaptability, robustness, homeostasis, memory, immunity. Biological immune systems seem to exhibit all of these features and more. Thus it is not so surprising that a vigorous research field has emerged, which focuses on understanding biological immune systems and creating new models, algorithms, technologies and theoretical understandings. The field is known collectively as Artificial Immune systems, and comprises a remarkably diverse range of researchers. Biologists join forces with mathematicians to create new models. engineers and computer scientists produce new autonomous intelligent software. Roboticists and specialists in unconventional computation create new control systems or new ways to compute.

关键词： control systems Immune system Specialists artificial immune systems Biological Mathematicians computer personnel Biologists

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A semantic web methodology for situation-aware curative food service recommendation system

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通讯和计算机（中英文版） 2009年第8期6卷 31-36页

作者： LO Chi-chun CHEN Chi-hua CHENG Dmg-yuan KUO Ting-huan KUNG Hsu-yang Institute of Information Management National Chiao-Tung University Hsinchu 300 Taiwa Department of Computer Science National Chiao-Tung University Hsinchu 300 Taiwan Department of Management Information System National Pingtung University of Science ＆ Technology Pingtung 912 Taiwan

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Increasing Reliability of Intelligent Manufacturing systems by Adaptive Optimization and Safety Supervision

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IFAC Proceedings Volumes 2009年第8期42卷 1533-1538页

作者： Hao Ding Sebastian Kain Frank Schiller Olaf Stursberg Institute of Control and System Theory Department of Electrical Engineering and Computer Science University of Kassel D-34109 Kassel Germany Institute of Information Technology in Mechanical Engineering Technische Universität München D-85748 Garching near Munich Germany

For concurrent consideration of reliability and safety of manufacturing systems on the one hand, and flexibility and performance on the other, a specialized control architecture was proposed recently. It consists of a strategic controller for online computing (sub-)optimal control strategies under consideration of dynamic models, safety specifications, and learned knowledge. The second building block is an operational controller for providing certified safety when dealing with behaviors that are not completely predictable, for instance in case of faults. This paper extends the architecture by a specific technique for the strategic controller: For the case of an intelligent manufacturing system which reacts adaptively to a human operator, control trajectories for a robot arm are computed online such that collision with the operator is excluded. The computation is based on solving a mixed-integer programming problem that takes a dynamic safety area around the operator into account as constraint.

关键词： Reliability Safety Intelligent Manufacturing systems Optimal Control

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Image Watermarking Based on Multiple Objective Genetic Algorithm

Image Watermarking Based on Multiple Objective Genetic Algor...

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International Conference on Intelligent information Hiding and Multimedia Signal Processing (IIHMSP)

作者： Jiann-Shu Lee Fong-Ping Chuang Kuen-Horng Tsai Department of Computer Science and Information Engineering National University of Tainan Taiwan Department of Information and Learning Technology National University of Tainan Taiwan Graduate Institute of Mechatronic System Engineering National University of Tainan Taiwan

In this paper, we propose a multiple objective GA scheme to promote watermarking robustness as well as imperceptibility. In contrast with the existing GA based approaches utilizing single objective optimization, we treat the image watermarking as a multiple objective optimization problem. Based on this new perspective, the inherent conflict existing in image watermarking can be objectively handled. The experimental study shows that our method indeed outperform the conventional GA-based approach in both robustness and imperceptibility.

关键词： Watermarking Genetic algorithms Robustness Discrete cosine transforms Signal processing algorithms Genetic engineering Protection Constraint optimization Multimedia systems computer science

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Bidirectionalizing programs with duplication through complementary function derivation

Computer Software

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computer Software 2009年第2期26卷 56-75页

作者： Matsuda, Kazutaka Hu, Zhenjiang Nakano, Keisuke Hamana, Makoto Takeichi, Masato DC Graduate School of Information Science and Technology University of Tokyo Japan Society for the Promotion of Science Japan Information System Architecture Research Division National Institute of Informatics Japan University of Electro-Communications Japan Dept. of Computer Science Gunma University Japan Graduate School of Information Science and Technology University of Tokyo Japan

A bidirectional transformation consists of a pair of unidirectional transformations: a forward transformation that maps one data structure called source to another called view, and a backward transformation that reflects changes in the view to the source. Bidirectional transformation has many useful applications such as replicated data synchronization, presentation-oriented editor development, and software artifact synchronization. In a previous work, we proposed a framework in which a backward transformation is automatically generated from a forward transformation by derivation of a complementary function if the forward transformation is given by a program in a simple functional language. However, the language has a severe restriction that no variable is allowed to be used more than once. In this paper, we show that tupling transformation relaxes this restriction, allowing us to handle a wider class of bidirectional transformations that may contain duplications.

关键词： Functions

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