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Proceedings of the International Convention MIPRO

作者： Peter Brezany Thomas Ludescher Thomas Feilhauer SIX Research Centre Brno University of Technology Brno Czech Republic Research Group Scientific Computing University of Vienna Vienna Austria Department of Computer Science University of Applied Sciences Dornbirn Austria

The life-science and health care research environments offer an abundance of new opportunities for improvement of their efficiency and productivity using big data in collaborative research processes. A key component of this development is e-science analytics, which is typically supported by Cloud computing nowadays. However, the state-of-the-art Cloud technology does not provide an appropriate support for high-productivity e-science analytics. In this paper, we show how productivity of Cloud-based analytics systems can be increased by (a) supporting researchers with integrating multiple problem solving environments into the life cycle of data analysis, (b) parallel code execution on top of multiple cores or computing machines, (c) enabling safe inclusion of sensitive datasets into analytical processes through improved security mechanisms, (d) introducing scientific dataspace-a novel data management abstraction, and (e) automatic analysis services enabling a faster discovery of scientific insights and providing hints to detect potential new topics of interests. Moreover, an appropriate formal productivity model for evaluating infrastructure design decisions was developed. The result of the realization of this vision, a key contribution of this effort, is called the High-Productivity Framework that was tested and evaluated using real life-science application domain addressing breath gas analysis applied e.g. in the cancer treatment.

关键词： Productivity Cloud computing Security Mathematical model computers computer science Computational modeling

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Analyzing Network Health and Congestion in Dragonfly-Based Supercomputers

Analyzing Network Health and Congestion in Dragonfly-Based S...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Abhinav Bhatele Nikhil Jain Yarden Livnat Valerio Pascucci Peer-Timo Bremer Center for Applied Scientific Computing Lawrence Livermore National Laboratory Livermore California USA Department of Computer Science University of Illinois at Urbana-Champaign Urbana Illinois USA Scientific Computing and Imaging Institute University of Utah Salt Lake City Utah USA

ISBN: (纸本)9781509021413

The dragonfly topology is a popular choice for building high-radix, low-diameter, hierarchical networks with high-bandwidth links. On Cray installations of the dragonfly network, job placement policies and routing inefficiencies can lead to significant network congestion for a single job and multi-job workloads. In this paper, we explore the effects of job placement, parallel workloads and network configurations on network health to develop a better understanding of inter-job interference. We have developed a functional network simulator, Damselfly, to model the network behavior of Cray Cascade, and a visual analytics tool, DragonView, to analyze the simulation output. We simulate several parallel workloads based on five representative communication patterns on up to 131,072 cores. Our simulations and visualizations provide unique insight into the buildup of network congestion and present a trade-off between deployment dollar costs and performance of the network.

关键词： Routing Bandwidth Network topology Interference Analytical models Supercomputers Ports (computers)

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Testing of a predictive pole-slip protection algorithm on a Real Time Digital Simulator

Testing of a predictive pole-slip protection algorithm on a ...

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IEEE International Workshop on applied Measurements for Power Systems (AMPS)

作者： Lafras Lamont Johan Rens Jan de Kock Department of Applied Electronics Tokyo University of Science Tokyo Japan School of Data and Computer Science Sun Yat-sen University Guangzhou China Key Lab. of Machine Intelligence and Advanced Computing Ministry of Education Guangzhou China

Predictive pole-slip protection is not implemented in commercially available protection relays. All pole-slip protection relays on the market will only trip a generator after it has pole-slipped one or more times. A predictive pole-slip protection algorithm was developed that can trip a generator before a pole-slip occurs. The Predictive Pole-Slip algorithm was tested on a Real Time Digital Simulator. This paper explains the testing setup as well as the scenarios tested. The feasibility of predictive pole-slip protection algorithm in a practical application is also discussed.

关键词： Generators Circuit faults Prediction algorithms Transient analysis Relays Power system stability

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The Quantum Entanglement of Measurement

arXiv

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arXiv 2017年

作者： Yokoyama, Shota Pozza, Nicola Dalla Serikawa, Takahiro Kuntz, Katanya B. Wheatley, Trevor A. Dong, Daoyi Huntington, Elanor H. Yonezawa, Hidehiro School of Engineering and Information Technology University of New South Wales CanberraACT2600 Australia Centre for Quantum Computation and Communication Technology Australian Research Council Department of Applied Physics School of Engineering University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Institute for Quantum Computing University of Waterloo WaterlooONN2L 3G1 Canada Research School of Engineering College of Engineering and Computer Science Australian National University CanberraACT2600 Australia

Entangled measurement is a crucial tool in quantum technology. We propose a new entanglement measure of a multi-mode detection, which estimates the amount of entanglement creatable by the measurement. We experimentally demonstrate two-mode detector tomography on a detector consisting of two superconducting nanowire single photon detectors. We investigate the entangling capability of the detector in the various settings. Our proposed measure verifies that the detector makes an entangled measurement in a certain setting, and reveals the nature of the entangling properties of the detector. The precise knowledge of a detector is essential for applications in quantum information technology. The experimental reconstruction of detector characteristics along with the proposed measure will be a key feature in future quantum information processing. Copyright © 2017, The Authors. All rights reserved.

关键词： Quantum entanglement

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Physiological Data Analysis for an Emotional Provoking Exergame

Physiological Data Analysis for an Emotional Provoking Exerg...

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IEEE Symposium Series on Computational Intelligence

作者： Larissa Müller Arne Bernin Sobin Ghose Wojtek Gozdzielewski Qi Wang Christos Grecos Kai von Luck Florian Vogt Department Informatik University of Applied Sciences (HAW) Hamburg Germany School of Engineering and Computing University of the West of Scotland Paisley Scotland Department Informatik University of Applied Sciences (HAW) Hamburg Germany School of Engineering and Computing University of the West of Scotland Paisley Scotland Computer Science Department Central Washington University (CWU) Ellensburg USA Innovations Kontakt Stelle (IKS) Hamburg Germany

ISBN: (纸本)9781509042418

In this work we enhance our previously developed analysis method of provoked emotions in facial expressions through the analysis of physiological data. The presented work describes the integration of electrodermal activity, respiration and temperature sensors to enhance our exergaming system for emotional provocation. The combined analysis of facial expressions and physiological data is designed to evaluate physical and cognitive stress as well as emotional reactions. The experimental setup combines a cycling game controller with a 3D virtual cycling game to provoke emotions. A designed data recording framework collects frontal videos and physiological data as well as game and controller events. In this work, we found evidence that physiological data analysis enhances the previously developed analysis method. The system is able to evaluate individual differences of an entertaining and balanced workout program.

关键词： through analysis physiological

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Integrable discretization of soliton equations via bilinear method and Backlund transformation

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science China Mathematics 2015年第2期58卷 279-296页

作者： ZHANG Ying Nan CHANG Xiang Ke HU Juan HU Xing Biao TAM Hon-Wah Institute of Computational Mathematics and Scientific Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences School of Mathematical Sciences University of Chinese Academy of Sciences Department of Applied Mathematics Zhejiang University of Technology Department of Computer Science Hong Kong Baptist University

We present a systematic procedure to derive discrete analogues of integrable PDEs via Hirota’s bilinear *** approach is mainly based on the compatibility between an integrable system and its B¨acklund *** apply this procedure to several equations,including the extended Korteweg-deVries(Kd V)equation,the extended Kadomtsev-Petviashvili(KP)equation,the extended Boussinesq equation,the extended Sawada-Kotera(SK)equation and the extended Ito equation,and obtain their associated semidiscrete *** the continuum limit,these differential-difference systems converge to their corresponding smooth *** these new integrable systems,their B¨acklund transformations and Lax pairs are derived.

关键词： integrable discretization bilinear method Backlund transformation

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Stabilizing quantum dynamics through coupling to a quantized environment

arXiv

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arXiv 2017年

作者： Kumari, Meenu Martín-Martínez, Eduardo Kempf, Achim Ghose, Shohini Institute for Quantum Computing University of Waterloo WaterlooONN2L 3G1 Canada Department of Physics and Astronomy University of Waterloo WaterlooONN2L 3G1 Canada Department of Applied Mathematics University of Waterloo WaterlooONN2L 3G1 Canada Perimeter Institute for Theoretical Physics 31 Caroline St N WaterlooONN2L 2Y5 Canada Department of Physics and Computer Science Wilfrid Laurier University WaterlooONN2L 3C5 Canada

We show that introducing a small uncertainty in the parameters of quantum systems can make the dynamics of these systems robust against perturbations. Concretely, for the case where a system is subject to perturbations due to an environment, we derive a lower bound on the fidelity decay, which increases with increasing uncertainty in the state of the environment. Remarkably, this robustness infidelity can be achieved even in fragile chaotic systems. We show that non-Markovianity is necessary for attaining robustness in the fidelity. Copyright © 2017, The Authors. All rights reserved.

关键词： Chaotic systems

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Quantum state and process tomography via adaptive measurements

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science China(Physics,Mechanics & Astronomy) 2016年第10期59卷 25-32页

作者： HengYan Wang WenQiang Zheng NengKun Yu KeRen Li DaWei Lu Tao Xin Carson Li ZhengFeng Ji David Kribs Bei Zeng XinHua Peng JiangFeng Du Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Department of Applied Physics Zhejiang University of TechnologyHangzhou 310023China Institute for Quantum Computing University of WaterlooWaterloo N2L 3G1Canada 4Department of Mathematics&Statistics University of GuelphGuelph N1G 2W1Canada Centre for Quantum Computation&Intelligent Systems Faculty of Engineering and Information TechnologyUniversity of Technology SydneySydney NSW 2007Australia State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing 100084China Department of Physics University of GuelphGuelph N1G 2W1Canada State Key Laboratory of Computer Science Institute of SoftwareChinese Academy of SciencesBeijing 100190China Canadian Institute for Advanced Research Toronto M5G 1Z8Canada

We investigate quantum state tomography(QST) for pure states and quantum process tomography(QPT) for unitary channels via adaptive measurements. For a quantum system with a d-dimensional Hilbert space, we first propose an adaptive protocol where only 2d. 1 measurement outcomes are used to accomplish the QST for all pure states. This idea is then extended to study QPT for unitary channels, where an adaptive unitary process tomography(AUPT) protocol of d2+d.1measurement outcomes is constructed for any unitary channel. We experimentally implement the AUPT protocol in a 2-qubit nuclear magnetic resonance system. We examine the performance of the AUPT protocol when applied to Hadamard gate, T gate(/8 phase gate), and controlled-NOT gate,respectively, as these gates form the universal gate set for quantum information processing purpose. As a comparison, standard QPT is also implemented for each gate. Our experimental results show that the AUPT protocol that reconstructing unitary channels via adaptive measurements significantly reduce the number of experiments required by standard QPT without considerable loss of fidelity.

关键词： quantum tomography state reconstruction nuclear magnetic resonance

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An image matching system for autonomous UAV navigation based on neural network

An image matching system for autonomous UAV navigation based...

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International Conference on Control, Automation, Robotics and Vision (ICARCV)

作者： José R. G. Braga Haroldo F. C. Velho Gianpaolo Conte Patrick Doherty Élcio H. Shiguemori Department of Applied Computing National Institute of Space Research (INPE) Brazil Dept. of Computer and Information Science Linköpings Universitet (LiU) Linköping Sweden Geo-Intelligence Division Institute of Advanced Studies (IEAv) Brazil

ISBN: (纸本)9781509035502

This paper proposes an image matching system using aerial images, captured in flight time, and aerial geo-referenced images to estimate the Unmanned Aerial Vehicle (UAV) position in a situation of Global Navigation Satellite System (GNSS) failure. The image matching system is based on edge detection in the aerial and geo-referenced image and posterior automatic image registration of these edge-images (position estimation of UAV). The edge detection process is performed by an Artificial Neural Network (ANN), with an optimal architecture. A comparison with Sobel and Canny edge extraction filters is also provided. The automatic image registration is obtained by a cross-correlation process. The ANN optimal architecture is set by the Multiple Particle Collision Algorithm (MPCA). The image matching system was implemented in a low cost/consumption portable computer. The image matching system has been tested on real flight-test data and encouraging results have been obtained. Results using real flight-test data will be presented.

关键词： Image edge detection Correlation Image matching Neurons Global Positioning System Unmanned aerial vehicles Training

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Towards a framework for sensor-based research and development platform for critical, socio-technical systems

Towards a framework for sensor-based research and developmen...

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Workshopband Datenbanksysteme fur Business, Technologie und Web, BTW 2015 - Workshops of the Conference on Database Systems for Business, Technology and Web, BTW 2015

作者： Surm, Henrik Nicklas, Daniela Department for Computing Science University Oldenburg Oldenburg Germany Faculty of Information Systems and Applied Computer Sciences University of Bamberg Bamberg Germany

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