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

作者： Guo-Cheng Lan Chao-Hui Lee Jin-Shang Wu Huan-Chung Li Shing-Hua Ho Vincent S. Tseng Department of Computer Science and Information Engineering National Cheng Kung University Tainan County Taiwan Department of Family Medicine National Cheng Kung University Tainan County Taiwan Institute for Information Industry Innovative Digitech-Enabled Applications and Services Institute Taipei Taiwan Institute for Information Industry Innovative Digitech-Enabled Applications and Services Institute Kaohsiung Taiwan Institute of Computer Science and Information Engineering and Institute of Medical Informatics National Cheng Kung University Tainan County Taiwan

In recent years, with the development of the economy and the advancement of the national income, personal healthcare has been becoming an important issue. Since the health examination can help people understand their own health conditions clearly, many people make regularly health examinations to avoid missing the best treatment time. So the health examination is an important role for people's health statuses. However, people only get aware of the result of health examination report but they are not clear whether their health trends are high-risk or not. In this paper, we proposed a novel framework for discovering health risk patterns and the relationships between the patterns and a target disease by mining historic health examination data. Moreover, a prediction model for the target disease can be constructed effectively by the discovered information. Through the framework, the physicians can early provide health alerts and medical treatments for people to effectively increase the quality of disease prevention.

关键词： Cardiac disease Data mining Cardiovascular diseases Information analysis computer science Biomedical engineering Application software computer industry Medical services Predictive models

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High Aspect ratio metamaterials for enhanced tunability and sensitivity

High Aspect ratio metamaterials for enhanced tunability and ...

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Conference on Lasers and Electro-Optics, CLEO 2009

作者： Chiam, Sher-Yi Bahou, Mohammed Moser, Herbert O. Gu, Jianqiang Singh, Ranjan Zhang, Weili Han, Jiaguang Bettiol, Andrew A. Center for Ion Beam Applications Department of Physics National University of Singapore Singapore Singapore Synchrotron Light Source National University of Singapore 5 Research Link 117603 Singapore School of Electrical and Computer Engineering Oklahoma State University Stillwater OK 74078 United States Center for Terahertz waves and College of Precision Instrument and Optoelectronics Engineering Tianjin University The Ministry of Education The Key Laboratory of Opto-electronics Information and Technical Science Tianjin 300072 China

Using a proton beam based lithography process, we fabricate and study high aspect ratio metamaterials, revealing distinct 3-dimensional resonances. Increased aspect ratio also leads to enhanced tunability and sensitiv... 详细信息

ISBN: (纸本)9781557528698

关键词： Metamaterials

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Stent graft change detection after endovascular abdominal aortic aneurysm repair

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10th International Conference on Intelligent Data engineering and Automated Learning, IDEAL 2009

作者： Maiora, Josu García, Guillermo Tapia, Arantxa MacÍa, Iván Legarreta, Jon Haitz Paloc, Céline Graña, Manuel De Blas, Mariano Electronics and Telecomunications Department Technical University School University of the Basque Country Donostia-San Sebastián Spain Engineering Systems and Automatic Department Technical University School University of the Basque Country Donostia-San Sebastián Spain Biomedical Applications Department VICOMTech Donostia-San Sebastián Spain Computational Intelligence Group Computer Science Faculty University of the Basque Country Donostia-SanSebastián Spain Interventional Radiology Service Donostia Hospital Donostia-SanSebastián Spain

ISBN: (纸本)3642043933

The use of the endovascular prostheses in Abdominal Aortic Aneurysm (EVAR) has proven to be an effective technique to reduce the pressure and rupture risk of aneurysm. Nevertheless, in a long term perspective different complications such as prostheses displacement or leaks inside the aneurysm sac (endoleaks) could appear causing a pressure elevation and increasing the danger of rupture consequently. At present computed tomographic angiography (CTA) is the most commonly used examination for imaging surveillance for stent graft monitoring. However, endoleak complications can not always be detected by visual inspection on CTA scans. The purpose of this work was to study the application of image registration techniques to the detection of changes in the stent graft. Previously we segment the lumen using semi-automatic methods. © 2009 Springer Berlin Heidelberg.

关键词： Stents

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Scaling Genetic Algorithms Using MapReduce

Scaling Genetic Algorithms Using MapReduce

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International Conference on Intelligent Systems Design and applications (ISDA)

作者： Abhishek Verma Xavier Llorà David E. Goldberg Roy H. Campbell Department of Computer Science University of Illinois Urbana-Champaign IL USA National Center for Supercomputing Applications (NCSA) University of Illinois Urbana-Champaign IL USA Department of Industrial and Enterprise Systems Engineering University of Illinois Urbana-Champaign IL USA

Genetic algorithms (GAs) are increasingly being applied to large scale problems. The traditional MPI-based parallel GAs require detailed knowledge about machine architecture. On the other hand, MapReduce is a powerful abstraction proposed by Google for making scalable and fault tolerant applications. In this paper, we show how genetic algorithms can be modeled into the MapReduce model. We describe the algorithm design and implementation of GAs on Hadoop, an open source implementation of MapReduce. Our experiments demonstrate the convergence and scalability up to 10 5 variable problems. Adding more resources would enable us to solve even larger problems without any changes in the algorithms and implementation since we do not introduce any performance bottlenecks.

关键词： Genetic algorithms Large-scale systems Scalability Application software Fault tolerance Concurrent computing Evolutionary computation Intelligent systems computer science computer industry

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Computing the Casimir energy using the point-matching method

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Physical Review D 2009年第6期80卷 065018-065018页

作者： F. C. Lombardo F. D. Mazzitelli M. Vázquez P. I. Villar Departamento de Física Juan José Giambiagi FCEyN University of Buenos Aires Facultad de Ciencias Exactas y Naturales Ciudad Universitaria Pabellón I 1428 Buenos Aires Argentina Computer Applications on Science and Engineering Department Barcelona Supercomputing Center (BSC) 29 Jordi Girona 08034 Barcelona Spain

We use a point-matching approach to numerically compute the Casimir interaction energy for a two perfect-conductor waveguide of arbitrary section. We present the method and describe the procedure used to obtain the numerical results. At first, our technique is tested for geometries with known solutions, such as concentric and eccentric cylinders. Then, we apply the point-matching technique to compute the Casimir interaction energy for new geometries such as concentric corrugated cylinders and cylinders inside conductors with focal lines.

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C-band scatterometer measurements of multiyear sea ice before fall freeze-up in the Canadian arctic

C-band scatterometer measurements of multiyear sea ice befor...

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作者： Isleifson, Dustin Langlois, Alexandre Barber, David G. Shafai, Lotfollah Department of Electrical and Computer Engineering University of Manitoba Winnipeg MB R3T 5V6 Canada Centre d'Applications et de Recherches en Télédection Département de Géomatique Appliquée Université de Sherbrooke Sherbrooke QC J1K 2R1 Canada Centre for Earth Observation Science Faculty of Enviroment University of Manitoba Winnipeg MB R3T 2N2 Canada

Backscatter signatures of multiyear sea ice (MYI) during the late summer and early fall season before the fall freeze-up in the Canadian Arctic Archipelago (CAA) have been obtained through the use of a ship-based polarimetric scatterom-eter. The device operates in C-band, and measurements were conducted in swaths from incidence angles of 20-60. Three characteristic sites on MYI floes were investigated in the high Arctic and the central Arctic regions. In situ snow and sea-ice thermophysical data were collected at each site in conjunction with local scatterometer measurements. The thermophysical data were subsequently analyzed using dielectric modeling techniques and coupled with the backscattering measurements (

关键词： Sea ice

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System-level performance evaluation of a H.264/AVC encoder targeting multiprocessors architectures

System-level performance evaluation of a H.264/AVC encoder t...

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International Conference on Microelectronics, ICM

作者： Hajer Krichene Zrida Ahmed Chiheb Ammari Abderrazek Jemai Mohamed Abid Department of Computer Science and Mathematics University of 7th of November Tunisia Department of Electrical Engineering CES Laboratory Sfax University Tunisia INSAT Unitéde recherche en Matériaux Mesures et Applications Tinis Tunisia Laboratoire LIP2-Faculté des Sciences de Tunis Tunis Tunisia

The system-level modeling and simulation framework Sesame/Artemis aims to efficiently explore the design space of heterogeneous embedded multimedia architectures. The Sesame environment provides several methods and tools to quickly and separately build the application process network model, the target architecture model, and the mapping model of the application onto the architecture. In addition, this tool is designed to allow the refining simulation models smoothly across different abstraction levels and to include support for refining only parts of an architecture model, creating a mixed-level simulation model. In this paper, the Sesame software framework is selected to implement at the black-box architecture model level a parallel H.264/AVC video encoding application targeting multiprocessors platforms.

关键词： Automatic voltage control Application software computer architecture Space exploration Communication system software Software performance Computational modeling Multimedia systems System-level design Encoding

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On the accuracy of the PFA: Analogies between casimir and electrostatic forces

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Journal of Physics: Conference Series 2009年第1期161卷

作者： Mazzitelli, Francisco D. Lombardo, Fernando C. Villar, Paula I. Departamento de Física Juan Jose Giambiagi Facultad de Ciencias Exactas y Naturales Ciudad Universitaria 1428 Buenos Aires Pabellon I Argentina Computer Applications on Science and Engineering Department Barcelona Supercomputing Center (BSC) 08034 Barcelona 29 Jordi Girona Spain

We present an overview of the validity of the Proximity Force Approximation (PFA) in the calculation of Casimir forces between perfect conductors for different geometries, with particular emphasis for the configuration of a cylinder in front of a plane. In all cases we compare the exact numerical results with those of PFA, and with asymptotic expansions that include the next to leading order corrections. We also discuss the similarities and differences between the results for Casimir and electrostatic forces. © 2009 IOP Publishing Ltd.

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Optimal neural network model: Stress-strain behavior of SFRC in direct compression

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Indian Concrete Journal 2008年第7期82卷 9-16页

作者： Jayaram, M.A. Nataraja, M.C. Ravikumar, C.N. Department of Master of Computer Applications Siddaganga Institute of Technoloqy Tumkur India Department of Civil Engineering Sri Jayachamarajendra College of Engineering Mysore India Department of Computer Science and Engineering Sri Jayachamarajendra College of Engineering Mysore India

This paper reports the development of an optimal neural network model for stress-strain behaviour of steel fibre reinforced concrete in direct compression. For this, an algorithm which combines the Akaike's information criterion (AIC) with the golden-section optimisation technique has been implemented. The extensive computational experiments have been successful in finding a network topology with excellent generalisation capabilities. The model was developed using the experimental results of doctoral research work of the second author. The parameters for modeling included the reinforcing index, the material parameter, and peak stress corresponding to peak strain and normalised strain. The output of the model is the normalised stress. The computational experiments used to implement the method are carried out by employing the three-layer back propagation neural network. The application of the combined algorithm resulted in an optimal topology of 4-26-1. The results of the model were excellent. However, a deviation of 0-15% was noticed in the post peak strain region when compared with experimental results.

关键词： Neural network models

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High aspect ratio metamaterials for enhanced tunability and sensitivity

High aspect ratio metamaterials for enhanced tunability and ...

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Conference on Lasers and Electro-Optics (CLEO)

作者： Sher-Yi Chiam Mohammed Bahou Herbert O. Moser Jianqiang Gu Ranjan Singh Weili Zhang Jiaguang Han Andrew A. Bettiol Center for Ion Beam Applications Department of Physics National University of Singapore Singapore Singapore Synchrotron Light Source National University of Singapore Singapore School of Electrical and Computer Engineering Oklahoma State University Stillwater OK USA Center for Terahertz waves and College of Precision Instrument and Optoelectronics Engineering and the Key Laboratory of Opto-electronics Information and Technical Science the Ministry of Education Tianjin University TJU Tianjin China

关键词： Metamaterials Resonance Dielectric substrates Particle beams Spectroscopy Lithography Optical ring resonators Frequency Optical device fabrication Fourier transforms

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