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Annual International Conference of the IEEE engineering in Medicine and Biology Society

作者： Kathryn Scannell Agnieszka F. Szymanska Zoran Nenadic Graduate Program in Mathematical University of California Irvine (UCI) Irvine CA USA Department of Biomedical Engineering UCI Irvine CA USA Department of Electrical Engineering and Computer Science UCI Irvine CA USA

Linear approaches to low-dimensional feature extraction may not be appropriate when statistical data are generated by a nonlinear interaction of parameters. Equally inadequate are linear methods for determining the dimension of the feature space. This article estimates the intrinsic dimension of extracellular action potentials (EAPs), which can be viewed as the minimum number of nonlinearly interacting parameters sufficient to describe the data. When combined with nonlinear feature extraction methods, this information may lead to a more faithful, low-dimensional EAP representation. These points are demonstrated using EAPs recorded experimentally by a multi-sensor electrode.

关键词： Feature extraction Extracellular Principal component analysis Noise Electrodes Wavelet analysis Standards

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A flexible ultrasonic velocity profiler development environment

A flexible ultrasonic velocity profiler development environm...

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IEEE Instrumentation and Measurement Technology Conference

作者： César Yutaka Ofuchi Fabio Rizental Coutinho Raquel dos Santos Rasia Lucia Valeria Ramos de Arruda Flávio Neves Rigoberto Eleazar Melgarejo Morales Graduate School of Electrical Engineering and Computer Science (CPGEI) Federal University of Technology-Paraná (UTFPR) Curitiba Brazil Mechanical & Materials Engineering Postgraduate Program (PPGEM) Federal University of Technology-Paraná (UTFPR) Curitiba Brazil

ISBN: (纸本)9781467363846

Ultrasonic velocity profiler method is now an accepted tool in modern experimental fluid mechanics and fluid engineering. As a relative new technology, different applications and improvements of the technique are being researched over the last years. This paper presents an environment to develop new algorithms to improve the ultrasonic velocity estimation technique. The system uses the LabVIEW modular platform integrated with mathematical script language used in many signal-processing software. The phase-shift algorithm was implemented and tested using the proposed system. The results are validated with standard velocity measurements generated by a rotating cylinder.

关键词： Acoustics Velocity measurement Software Signal processing algorithms Ultrasonic variables measurement Fluids Doppler effect

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A study on self-configuration in the differential evolution algorithm

A study on self-configuration in the differential evolution ...

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IEEE Symposium on Differential Evolution (SDE)

作者： Rodrigo C. P. Silva Rodolfo A. Lopes Alan R. R. Freitas Frederico G. Guimaraes Department of Electrical and Computer Engineering McGill University Montreal Canada Graduate Program in Electrical Engineering Federal University of Minas Gerais (UFMG) Brazil Department of Computer Science Federal University-of Ouro Preto (UFOP) Brazil Guimarães Department of Electrical Engineering Federal University of Minas Gerais (UFMG) Brazil

ISBN: (纸本)9781479944606

The great development in the area of evolutionary algorithms in recent decades has increased the range of applications of these tools and improved its performance in different fronts. In particular, the Differential Evolution (DE) algorithm has proven to be a simple and efficient optimizer in several contexts. Despite of its success, its performance is closely related to the choice of variation operators and the parameters which control these operators. To increase the robustness of the method and the ease of use for the average user, the pursuit for methods of self-configuration has been increasing as well. There are several methods in the literature for setting parameters and operators. In order to understand the effects of these approaches on the performance of DE, this paper presents a thorough experimental analysis of the main existing paradigms. The results show that simple approaches are able to bring significant improvements to the performance of DE.

关键词： Sociology Statistics Vectors Equations Indexes Educational institutions Electronic mail

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A web-based, hospital-wide health care-associated bloodstream infection surveillance and classification system: Development and evaluation

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JMIR Medical Informatics 2015年第3期3卷 e31页

作者： Tseng, Yi-Ju Wu, Jung-Hsuan Lin, Hui-Chi Chen, Ming-Yuan Ping, Xiao-Ou Sun, Chun-Chuan Shang, Rung-Ji Sheng, Wang-Huei Chen, Yee-Chun Lai, Feipei Chang, Shan-Chwen Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei Taiwan Computational Health Informatics Program Boston Children's Hospital Boston MA United States Department of Electrical Engineering National Taiwan University Taipei Taiwan Center for Infection Control National Taiwan University Hospital Taipei Taiwan National Taiwan University Hospital Information Systems Office Taipei Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan Department of Internal Medicine National Taiwan University Hospital and College of Medicine Taipei Taiwan National Health Research Institutes National Institute of Infectious Diseases and Vaccinology Miaoli Taiwan

Background: Surveillance of health care-associated infections is an essential component of infection prevention programs, but conventional systems are labor intensive and performance dependent. Objective: To develop an automatic surveillance and classification system for health care-associated bloodstream infection (HABSI), and to evaluate its performance by comparing it with a conventional infection control personnel (ICP)-based surveillance system. Methods: We developed a Web-based system that was integrated into the medical information system of a 2200-bed teaching hospital in Taiwan. The system automatically detects and classifies HABSIs. Results: In this study, the number of computer-detected HABSIs correlated closely with the number of HABSIs detected by ICP by department (n=20;r=.999 P<.001) and by time (n=14;r=.941;P<.001). Compared with reference standards, this system performed excellently with regard to sensitivity (98.16%), specificity (99.96%), positive predictive value (95.81%), and negative predictive value (99.98%). The system enabled decreasing the delay in confirmation of HABSI cases, on average, by 29 days. Conclusions: This system provides reliable and objective HABSI data for quality indicators, improving the delay caused by a conventional surveillance system. © 2020 JMIR Publications Inc. All rights reserved.

关键词： Health care-associated infection Infection control Information systems Surveillance Web-based services

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Frontispiece: Quantum Crystallography: Current Developments and Future Perspectives

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Chemistry – A European Journal 2018年第43期24卷

作者： Alessandro Genoni Lukas Bučinský Nicolas Claiser Julia Contreras-García Birger Dittrich Paulina M. Dominiak Enrique Espinosa Carlo Gatti Paolo Giannozzi Jean-Michel Gillet Dylan Jayatilaka Piero Macchi Anders Ø. Madsen Lou Massa Chérif F. Matta Kenneth M. Merz Jr. Philip N. H. Nakashima Holger Ott Ulf Ryde Karlheinz Schwarz Marek Sierka Simon Grabowsky Université de Lorraine CNRS Laboratoire LPCT 1 Boulevard Arago F-57078 Metz France Institute of Physical Chemistry and Chemical Physics Slovak University of Technology FCHPT SUT Radlinského 9 SK-812 37 Bratislava Slovakia Université de Lorraine CNRS Laboratoire CRM2 Boulevard des Aiguillettes BP 70239 F-54506 Vandoeuvre-lès-Nancy France Sorbonne Universités UPMC Université Paris 06 CNRS Laboratoire de Chimie Théorique (LCT) 4 Place Jussieu F-75252 Paris Cedex 05 France Anorganische und Strukturchemie II Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany Biological and Chemical Research Centre Department of Chemistry University of Warsaw ul. Żwirki i Wigury 101 02-089 Warszawa Poland CNR-ISTM Istituto di Scienze e Tecnologie Molecolari via Golgi 19 Milano I-20133 Italy Istituto Lombardo Accademia di Scienze e Lettere via Brera 28 20121 Milano Italy Department of Mathematics Computer Science and Physics University of Udine Via delle Scienze 208 I-33100 Udine Italy Structure Properties and Modeling of Solids Laboratory CentraleSupelec Paris-Saclay University 3 rue Joliot-Curie 91191 Gif-sur-Yvette France School of Molecular Sciences University of Western Australia 35 Stirling Highway Perth WA 6009 Australia Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 CH-3012 Bern Switzerland Department of Pharmacy University of Copenhagen Universitetsparken 2 2100 Copenhagen Denmark Hunter College & the Ph.D. Program of the Graduate Center City University of New York New York USA Department of Chemistry and Physics Mount Saint Vincent University Halifax Nova Scotia B3M 2J6 Canada Department of Chemistry Dalhousie University Halifax Nova Scotia B3H 4J3 Canada Department of Chemistry Saint Mary's University Halifax Nova Scotia B3H 3C3 Canada Département de Chimie Université Laval Québec QC G1V 0A6 Canada Department of Chemistry and Department of Biochemistry and Molecular Biology Michigan Stat

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Verification of relationship between heart rate and body movement for fatigue estimation

Verification of relationship between heart rate and body mov...

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IEEE International Conference on Industrial Informatics (INDIN)

作者： Jinhua She Hitoshi Nakamura Junya Imani Yasuhiro Ohyama Hiroshi Hashimoto Min Wu School of Information Science and Engineering Hunan Engineering Laboratory for Advanced Control and Intelligent Automation Changsha China School of Computer Science Tokyo University of Technology Hachioji Japan Graduate School of Bionics Tokyo University of Technology Hachioji Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology Japan

It is an urgent need to find an objective way to estimate the degree of fatigue of employees. In this study, we designed a monitoring and estimation system for the degree of fatigue. This paper explains a long-term pedaling experiment that we use it to explore the possibility to use only the time sequence data of head movement during pedaling to estimate the fatigue. While we show the possibility for this through experimental data, it is clear that we need to collect more data to establish an estimation method.

关键词： Fatigue Heart rate Estimation Educational institutions Monitoring Correlation Electronic mail

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Service-oriented biomedical devices

Service-oriented biomedical devices

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Health Innovations and POCT

作者： João M. T. Lacerda Ricardo A. M. Valentim Bruno G. de Araújo Philippi S. G. Morais Marcel C. M. Dantas Federal Institute of Education Graduate Program in Electrical Engineering and Computer Science (PPGEEC) Natal RN Brazil Laboratory of Technological Innovation in Health (LAIS) Federal University of Rio Grande do Norte (UFRN) Natal RN Brazil

The great diversity in the architecture of biomedical devices, coupled with their different communication protocols, has hindered the implementation of systems that need access to these devices. Given these differences, arises the need to provide access to such devices in a transparent way. In this sense, this paper proposes an service-oriented architecture to access biomedical devices as a way to abstract the mechanism for writing and reading data on these devices, thus contributing to the increase in quality and productivity of biomedical systems in order to enable that the focus of the development team of biomedical software is almost exclusively intended for its functional requirements, i.e. business rules relevant to the problem domain. For the development of this work, technologies such as the XML language and the Java programming language were used and concepts of Software engineering as Design Patterns. After the proposition of the architecture, tests in order to validate the proposed architecture were performed.

关键词： Service-oriented architecture Hardware XML Java Time factors computer architecture

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Dynamic Bandwidth Distribution for Entertainment Vehicular Networks Applications

Dynamic Bandwidth Distribution for Entertainment Vehicular N...

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International Conference on Advanced Information Networking and Applications Workshops (AINAW)

作者： Ronan D. Mendonça Thais R.M. Braga Silva Fabrício A. Silva Linnyer B. Ruiz Antonio A.F. Loureiro Graduate Program in Electrical Engineering Federal University of Minas Gerais Campus Florestal - Fed. Univ. of Vicosa Vicosa Brazil Computer Science Department Federal University of Minas Gerais Department of Informatics State University of Maringa

Vehicular networks will play an important role in future smart cities. Connected vehicles will be able to provide entertainment content to their users in order to make traffic situations more enjoyable. However, the amount of bandwidth available to the vehicles may not be enough to satisfy all of them. In this case, we can say that a conflict of interest occurred and then must the solved as fair as possible. In this work, we propose a solution to solve this kind of collective conflict. Our solution balances users' satisfaction with resources consumption as it is capable of choosing the most adequate resolution algorithm based on the current application's situation. The results showed that with our solution it was possible to achieve adequate satisfaction levels, with low response time and controlled network usage.

关键词： Vehicles Bandwidth Entertainment industry Protocols Time factors Vehicle dynamics Heuristic algorithms

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Cross-camera vehicle tracking via affine invariant object matching for video forensics applications

Cross-camera vehicle tracking via affine invariant object ma...

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2013 IEEE International Conference on Multimedia and Expo, ICME 2013

作者： Hsu, Chao-Yung Kang, Li-Wei Mark Liao, Hong-Yuan Institute of Information Science Academia Sinica Taipei Taiwan Graduate School of Engineering Science and Technology-Doctoral Program Department of Computer Science and Information Engineering National Yunlin University of Science and Technology Yunlin Taiwan

ISBN: (纸本)9781479900152

The recent deployment of very large-scale camera networks consisting of fixed/moving surveillance cameras and vehicle video recorders, has led to a novel field in object tracking problem. The major goal is to detect and track each vehicle within a large area, which can be applied to video forensics. For example, a suspected vehicle can be automatically identified for mining digital criminal evidences from a large amount of video data. In this paper, we propose an efficient cross-camera vehicle tracking technique via affine invariant object matching. More specifically, we formulate the problem as invariant image feature matching among different viewpoints of cameras. To achieve vehicle matching, we first extract invariant image feature based on ASIFT (affine and scale-invariant feature transform) for each detected vehicle in a camera network. Then, to improve the accuracy of ASIFT feature matching between images from different viewpoints, we propose to efficiently match feature points based on our observed spatially invariant property of ASIFT, as well as the min-hash technique. As a result, cross-camera vehicle tracking can be efficiently and accurately achieved. Experimental results demonstrate the efficacy of the proposed algorithm and the feasibility to video forensics applications. © 2013 IEEE.

关键词： Tracking (position)

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Haze effect removal from image via haze density estimation in optical model

Haze effect removal from image via haze density estimation i...

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作者： Yeh, Chia-Hung Kang, Li-Wei Lee, Ming-Sui Lin, Cheng-Yang Department of Electrical Engineering National Sun Yat-sen University 804 Taiwan Graduate School of Engineering Science and Technology-Doctoral Program Department of Computer Science and Information Engineering National Yunlin University of Science and Technology Yunlin 640 Taiwan Graduate Institute of Networking and Multimedia Department of Computer Science and Information Engineering National Taiwan University Taipei 106 Taiwan

Images/videos captured from optical devices are usually degraded by turbid media such as haze, smoke, fog, rain and snow. Haze is the most common problem in outdoor scenes because of the atmosphere conditions. This paper proposes a novel single image-based dehazing framework to remove haze artifacts from images, where we propose two novel image priors, called the pixel-based dark channel prior and the pixel-based bright channel prior. Based on the two priors with the haze optical model, we propose to estimate atmospheric light via haze density analysis. We can then estimate transmission map, followed by refining it via the bilateral filter. As a result, high-quality haze-free images can be recovered with lower computational complexity compared with the state-of-the-art approach based on patch-based dark channel prior. ©2013 Optical Society of America.

关键词： Pixels

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