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

作者： Chao-Tung Yang Chien-Tung Pan Ping-I Chen Taiwan High-Performance Computing Laboratory Department of Computer Science and Information Engineering Tunghai University Taichung Taiwan

Grid technology is the great progress of network after Internet, since grid enables the integrated and collaborative use of distributed computing resources owned and managed by multiple organizations, available over a local or wide area network. In this paper, we provided a data grid platform with integrated storage to solve such data grid problems by using PVFS2 to increase the data storage space. The experimental results presented show the effectiveness of such proposed combination of technologies

关键词： File systems Space technology IP networks Collaboration Distributed computing computer network management Resource management Technology management Wide area networks Memory

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An efficient technique for optimization of the Concentric Array Radial Line Slot Antenna (CA-RLSA)

An efficient technique for optimization of the Concentric Ar...

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2005 IEEE Antennas and Propagation Society International Symposium and USNC/URSI Meeting

作者： Feng, Zhuo Li, Le-Wei Li, Er-Ping Yeo, Tat Soon Department of Electrical and Computer Engineering National University of Singapore Kent Ridge 119260 Singapore Computational Electronics and Electromagnetics Division Institute of High Performance Computing Science Park II Singapore 117528 Singapore

ISBN: (纸本)0780388836

In this paper, an efficient technique is proposed to optimize the geometie and arrangements of the slots of the CARLSAs. Moment method in carried out to obtain the unknown excitation coefficients after spliting the slot pairs into several identical sectors. The slot lengths and positions are then optimized to achieve the uniform amplitude and phase over the aperture. The computation of the admittance matrix is reduced a lot while the unknowns of the slot excitation coefficients are also minimized. © 2005 IEEE.

关键词： Antenna arrays

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The anatomy of a course in cluster and grid computing

The anatomy of a course in cluster and grid computing

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ITRE 2005 - 3rd International Conference on Information Technology: Research and Education

作者： Yang, Chao-Tung Li, Kuan-Ching High Performance Computing Laboratory Dept. of Computer Science and Information Engineering Tunghai University Taichung City Taichung 40704 Taiwan Parallel and Distributed Processing Center Dept. of Computer Science and Information Management Providence University Shalu Taichung 43301 Taiwan

ISBN: (纸本)0780389328

Cluster and grid computing is a relatively new interdisciplinary field, where computer science, engineering and computational biology as its core supporting disciplines. The rise of cluster and grid computing discipline brings to computer science faculty members new opportunities and challenges, both in education and in research. In this paper, we will explore issues in teaching Cluster and Grid computing, the developing of curricula, and thoughts to foster student to work on research projects in Cluster and Grid computing. © 2005 IEEE.

关键词： Education

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A travel distance power consumption model for battery electric vehicles

A travel distance power consumption model for battery electr...

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2nd International Conference on Advances in Energy and Environmental science, ICAEES 2014

作者： Tseng, Chia-Wei Yang, Yao-Tsung Chou, Li-Der Broadband Network Laboratory Chunghwa Telecom Laboratories Taoyuan Taiwan Dept. of Computer Science and Information Engineering National Central University Taoyuan Taiwan National Center fo High-performance Computing Hsinchu Taiwan

ISBN: (纸本)9783038352082

Electric Vehicles (EVs) are becoming increasingly popular in recent years. Battery Electric Vehicles (BEVs) are a type of EVs use stored energy more efficiently than typical internal combustion engine powered counterparts. A key challenge of BEV is the limited battery energy. In order to relieve electric vehicle range anxiety for BEV owners and achieve an optimal battery sizing for BEV, a travel distance power consumption model has been created to model the travel behavior of BEV in the fleet. The model provides an efficient way of estimating the power requirements of electric vehicles reach the destination. © (2014) Trans Tech Publications, Switzerland.

关键词： Electric power utilization

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Imprecise Neural Computation in Real-Time Neural System Design

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IFAC Proceedings Volumes 1998年第14期31卷 123-128页

作者： John Sum Gilbert H. Young Wing-kay Kan High Performance Computing Laboratory Department of Computer Science and Engineering Chinese University of Hong Kong Shatin N. T. Hong Kong

In order to solve real-time control problems, a good software design together with an appropriate control scheme and a system identification method are extremely importance. To facilitate the software design to cope with such a time critical system, the concept of imprecise and approximate computation has been imposed and applied in real-time scheduling problems for more than a decade. Applying neural network to solve real-time problem is always a problem to neural network practitioners. In this paper, a principle for neural computation and real-time system 一 imprecise neural computation 一 will be presented. This principle extends the idea of imprecise computation in real-time systems by introducing concepts like mandatory neural structure and imprecise pruning. Using such concepts, it is able to design and analyze a real-time neural system for different real-time applications.

关键词： Imprecise computation Model complexity Neural computation Pruning Real-time systems Training

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Privacy preservation in social networks with sensitive edge weights

Privacy preservation in social networks with sensitive edge ...

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9th SIAM International Conference on Data Mining 2009, SDM 2009

作者： Liu, Lian Wang, Jie Liu, Jinze Zhang, Jun Laboratory for High Performance Scientific Computing and Computer Simulation Department of Computer Science University of Kentucky Lexington KY 40506-0046 United States Computer Science Department Minnesota State University Mankato 273 Wissink Hall Mankato MN 56001 United States Department of Computer Science College of Engineering University of Kentucky 237 Hardymon Lexington KY 40506-0046 United States

ISBN: (纸本)9781615671090

With the development of emerging social networks, such as Facebook and MySpace, security and privacy threats arising from social network analysis bring a risk of disclosure of confidential knowledge when the social network data is shared or made public. In addition to the current social network anonymity de-identification techniques, we study a situation, such as in a business transaction network, in which weights are attached to network edges that are considered to be confidential (e.g., transactions). We consider perturbing the weights of some edges to preserve data privacy when the network is published, while retaining the shortest path and the approximate cost of the path between some pairs of nodes in the original network. We develop two privacy-preserving strategies for this application. The first strategy is based on a Gaussian randomization multiplication, the second one is a greedy perturbation algorithm based on graph theory. In particular, the second strategy not only yields an approximate length of the shortest path while maintaining the shortest path between selected pairs of nodes, but also maximizes privacy preservation of the original weights. We present experimental results to support our mathematical analysis.

关键词： Graph theory

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A Workflow-based Computational Resource Broker with Information Monitoring in Grids

A Workflow-based Computational Resource Broker with Informat...

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International Conference on Grid and Cooperative computing (GCC)

作者： Chao-Tung Yang Cheng-Fang Lin Sung-Yi Chen Taiwan High-Performance Computing Laboratory Department of Computer Science and Information Engineering Tunghai University Taichung Taiwan

As grid computing becomes a reality, a resource broker is needed to manage and monitor available resources. This work presents a workflow-based computational resource broker whose main function is to match available resources with user requests and consider network information status during matchmaking. The resource broker provides a uniform interface for accessing available and the appropriate resources via user credentials. We utilize the NWS tool to monitor the network-related information and resources status. Also, we constructed a grid platform using Globus Toolkit that integrates the distributed resources of five universities in Taichung, Taiwan, where the resource broker is developed. As a result, the proposed broker provides secure and updated information about available resources and serves as a link to the diverse systems available in the grid

关键词： Grid computing Resource management Middleware Access protocols computerized monitoring Information security computer networks Portals computer interfaces Web services

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Predicting the flexibility of dynamic loop scheduling using an artificial neural network

Predicting the flexibility of dynamic loop scheduling using ...

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2013 IEEE 12th International Symposium on Parallel and Distributed computing, ISPDC 2013

作者： Srivastava, Srishti Malone, Brandon Sukhija, Nitin Banicescu, Ioana Ciorba, Florina M. Department of Computer Science and Engineering Mississippi State University MS United States Department of Computer Science Helsinki Institute for Information Technology University of Helsinki Helsinki Finland Center for Information Services and High Performance Computing Technische Universität Dresden Dresden Germany

ISBN: (纸本)9780769550183

In this paper, an artificial neural network (ANN) model is proposed to predict the flexibility (or robustness against system load fluctuations in heterogeneous computing systems) of dynamic loop scheduling (DLS) methods. The multilayer perceptron (MLP) ANN model has been used to predict the degree of robustness of a DLS method, given specific values for the problem size, the system size, and the characteristics of the system load fluctuations as a compound effect of the variations in the application's iteration execution times and the processor availabilities. The developed MLP ANN model can be useful in an effective selection of the most robust DLS technique for scheduling a certain type of scientific application onto a given set of non-dedicated heterogeneous processors, when their system load is expected to fluctuate unpredictably during the application's runtime. © 2013 IEEE.

关键词： Forecasting

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Developing an Automated Mechanism for Cluster computing in computerized Classroom

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Procedia computer science 2011年 4卷 2068-2075页

作者： Shuen-Tai Wang Chin-Hung Li Hsi-Ya Chang Ying-Chuan Chen Ching-Hsien Hsu National Center for High-Performance Computing Taiwan Department of Computer Science and Information Engineering Chung Hua UniversityTaiwan

Scientific computing has become one of the key players in the advance of modern science and technologies. In the meantime, due to the success of developments in processor fabrication, the computing power of Personal computer (PC) is not to be ignored as well. Lots of high throughput type of applications can be satisfied by using the current desktop PCs, especially for those in computerized classrooms, and leave the supercomputers for the demands from large scale high performance parallel computations. The goal of this work is to develop an automated mechanism for cluster computing to utilize the computing power such as resides in computerized classroom. The PCs in computerized classroom are usually setup for education and training purpose during the daytime, and shut down at night. After well deployment, these PCs can be transformed into a pre-configured cluster computing resource immediately without touching the existing education/training environment installed on these PCs. Thus, the training activities will not be affected by this additional activity to harvest idle computing cycles. To echo today's energy saving issues, a dynamic power management is also developed to minimize energy cost. This development not only greatly reduces the management efforts and time to build a cluster, but also implies the reduction of the power consumption by such a mechanism.

关键词： Personal computer cluster computing computerized classroom dynamic power management

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A performance-based Dynamic Loop Partitioning on Grid computing Environments

A Performance-based Dynamic Loop Partitioning on Grid Comput...

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IEEE International Conference on high performance computing and Communications (HPCC)

作者： Chao-Tung Yang Lung-Hsing Cheng High-Performance Computing Laboratory Department of Computer Science Tunghai University Taichung Taiwan

Loop scheduling on parallel and distributed systems has been a critical problem. Furthermore, it becomes more difficult to deal with on the emerging heterogeneous grid environments. In the past, some loop self-scheduling schemes have been proposed to be applicable to heterogeneous gird environments. In this paper, we propose a performance-based approach, which partitions loop iterations according to the performance weight of nodes. To verify the proposed approach, a grid testbed that consists four schools is built, and matrix multiplication example is implemented to be executed in this testbed. Experimental results show that the proposed approach performs better than previous schemes.

关键词： Grid computing Processor scheduling Dynamic scheduling Central Processing Unit Distributed computing Testing Clocks high performance computing Concurrent computing performance analysis

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