检索结果-内蒙古大学图书馆

IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Aaron Mcfadyen Luis Mejias Peter Corke Cedric Pradalier ARCAA School of Electrical Engineering and Computer Science Queensland University of Technology Brisbane Australia. Autonomous System Laboratory ETH Zurich Switzerland

ISBN: (纸本)9781467363563

This paper presents practical vision-based collision avoidance for objects approximating a single point feature. Using a spherical camera model, a visual predictive control scheme guides the aircraft around the object along a conical spiral trajectory. Visibility, state and control constraints are considered explicitly in the controller design by combining image and vehicle dynamics in the process model, and solving the nonlinear optimization problem over the resulting state space. Importantly, range is not required. Instead, the principles of conical spiral motion are used to design an objective function that simultaneously guides the aircraft along the avoidance trajectory, whilst providing an indication of the appropriate point to stop the spiral behaviour. Our approach is aimed at providing a potential solution to the See and Avoid problem for unmanned aircraft and is demonstrated through a series of experimental results using a small quadrotor platform.

关键词： Single Point Features small quadrotor platform experimental results using

来源：评论

学校读者我要写书评

暂无评论

Erratum: Large meta-analysis of genome-wide association studies identifies five loci for lean body mass

引用

Nature communications 2017年第1期8卷 1414页

作者： M Carola Zillikens Serkalem Demissie Yi-Hsiang Hsu Laura M Yerges-Armstrong Wen-Chi Chou Lisette Stolk Gregory Livshits Linda Broer Toby Johnson Daniel L Koller Zoltán Kutalik Jian'an Luan Ida Malkin Janina S Ried Albert V Smith Gudmar Thorleifsson Liesbeth Vandenput Jing Hua Zhao Weihua Zhang Ali Aghdassi Kristina Åkesson Najaf Amin Leslie J Baier Inês Barroso David A Bennett Lars Bertram Rainer Biffar Murielle Bochud Michael Boehnke Ingrid B Borecki Aron S Buchman Liisa Byberg Harry Campbell Natalia Campos Obanda Jane A Cauley Peggy M Cawthon Henna Cederberg Zhao Chen Nam H Cho Hyung Jin Choi Melina Claussnitzer Francis Collins Steven R Cummings Philip L De Jager Ilja Demuth Rosalie A M Dhonukshe-Rutten Luda Diatchenko Gudny Eiriksdottir Anke W Enneman Mike Erdos Johan G Eriksson Joel Eriksson Karol Estrada Daniel S Evans Mary F Feitosa Mao Fu Melissa Garcia Christian Gieger Thomas Girke Nicole L Glazer Harald Grallert Jagvir Grewal Bok-Ghee Han Robert L Hanson Caroline Hayward Albert Hofman Eric P Hoffman Georg Homuth Wen-Chi Hsueh Monica J Hubal Alan Hubbard Kim M Huffman Lise B Husted Thomas Illig Erik Ingelsson Till Ittermann John-Olov Jansson Joanne M Jordan Antti Jula Magnus Karlsson Kay-Tee Khaw Tuomas O Kilpeläinen Norman Klopp Jacqueline S L Kloth Heikki A Koistinen William E Kraus Stephen Kritchevsky Teemu Kuulasmaa Johanna Kuusisto Markku Laakso Jari Lahti Thomas Lang Bente L Langdahl Lenore J Launer Jong-Young Lee Markus M Lerch Joshua R Lewis Lars Lind Cecilia Lindgren Yongmei Liu Tian Liu Youfang Liu Östen Ljunggren Mattias Lorentzon Robert N Luben William Maixner Fiona E McGuigan Carolina Medina-Gomez Thomas Meitinger Håkan Melhus Dan Mellström Simon Melov Karl Michaëlsson Braxton D Mitchell Andrew P Morris Leif Mosekilde Anne Newman Carrie M Nielson Jeffrey R O'Connell Ben A Oostra Eric S Orwoll Aarno Palotie Stephen C J Parker Munro Peacock Markus Perola Annette Peters Ozren Polasek Richard L Prince Katri Räikkönen Stuart H Ralston Samuli Ripatti John A Robbins Jerome I Rotter Igor Rudan Veikko Department of Internal Medicine Erasmus MC Rotterdam 3000 The Netherlands. Netherlands Genomics Initiative (NGI)-sponsored Netherlands Consortium for Healthy Aging (NCHA) Leiden 2593 The Netherlands. Department of Biostatistics Boston University School of Public Health Boston MA 02118 USA. Hebrew SeniorLife Institute for Aging Research Roslindale MA 02131 USA. Harvard Medical School Boston MA 02115 USA. Molecular and Integrative Physiological Sciences Program Harvard School of Public Health Boston MA 02115 USA. Program in Personalized and Genomic Medicine and Department of Medicine Division of Endocrinology Diabetes and Nutrition University of Maryland School of Medicine Baltimore MD 21201 USA. Broad Institute Cambridge MA 02142 USA. Sackler Faculty of Medicine Department of Anatomy and Anthropology Tel Aviv University Tel Aviv 6997801 Israel. Department of Twin Research and Genetic Epidemiology King's College London St Thomas' Campus London WC2R 2LS UK. Department of Epidemiology Erasmus MC Rotterdam 3000 The Netherlands. Department of Medical Genetics University of Lausanne Lausanne 1011 Switzerland. Swiss Institute of Bioinformatics Lausanne 1015 Switzerland. Centre Hospitalier Universitaire (CHUV) University Institute for Social and Preventive Medicine Lausanne 1010 Switzerland. Department of Medical and Molecular Genetics Indiana University School of Medicine Indianapolis IN 46202 USA. MRC Epidemiology Unit University of Cambridge School of Clinical Medicine Cambridge Biomedical Campus Cambridge CB2 OQQ UK. Institute of Epidemiology II Helmholtz Zentrum München - German Research Center for Environmental Health Neuherberg 85764 Germany. Icelandic Heart Association Kopavogur 201 Iceland. Faculty of Medicine University of Iceland Reykjavik 101 Iceland. deCODE Genetics Reykjavik 101 Iceland. Department of Internal Medicine Institute of Medicine Sahlgrenska Academy University of Gothenburg Gothenburg SE-405 30 Sweden. Dep

A correction to this article has been published and is linked from the HTML version of this article.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An implementation of the QR iterations for finding eigenvalues of matrices with CUDA on GPU

An implementation of the QR iterations for finding eigenvalu...

引用

International Conference on Mechatronic science, Electric Engineering and computer

作者： Meirui Meihui Weiping Zhang Tao Wang Ning Tian Jinbao Li Longjiang Guo School of Computer Science and Technology Heilongjiang University Harbin 150080 China Harbin Research Institute of Electrical Instrumentation 150028 China School of Computer Science and Technology Heilongjiang University Harbin China Key Laboratory of Database and Parallel Computing of Heilongjiang Province Harbin China

ISBN: (纸本)9781479925667

Based on the principle of QR loop iterations, this paper implements a parallel algorithm based on the hardware of GPU (Graphic Process Unit) by using routines from CUDA (computer Unified Device Architecture) to find the eigenvalues of general matrices. CPU and GPU computing card form a client-server computing framework. Here, CPU can be regarded as a client and GPU card is considered as a computing server. For the experiment environment, this paper chooses a GPU card with the model of NVIDIA GeForce GTX460 as a server side and a CPU with the model of Intel Core i5-760 quad-core as a client side. Win7 64-bit is selected as the operating system. The parallel implementation consists of two parts:PA H and PA QR. PA H is a procedure that transforms a matrix A into the Hessenberg matrix B. PA QR is the actual parallel algorithm of the QR iterations that is imposed on the Hessenberg matrix B for finding eigenvalues of the general matrix A. The speedup ratio of the proposed algorithm is jarless when the number of iterations becomes greater. The experimental results show that the parallel implementation with CUDA on GPU only makes use of less running time than traditional sequential algorithms. The speedup ratio of PA H is between 1.79 and 7.81. The speedup ratio of PA QR is between 3.24 and 118.9. Especially, when the order of general matrix equals 8192, the amount of iterations becomes 10000. The speedup ratio of the PA-H and the PA QR can run up to 7.81 and 118.9 respectively.

关键词： Graphics processing units Eigenvalues and eigenfunctions Hardware Kernel Instruction sets

来源：评论

学校读者我要写书评

暂无评论

Behavior of Collective Cooperation Yielded by Two Update Rules in Social Dilemmas:Combining Fermi and Moran Rules

引用

Communications in Theoretical Physics 2012年第9期58卷 343-348页

作者：夏承遗王磊王娟王劲松 Key Laboratory of Computer Vision and System(Ministry of Education)and Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology School of Automation Tianjin University of Technology

We combine the Fermi and Moran update rules in the spatial prisoner＇s dilemma and snowdrift games to investigate the behavior of collective cooperation among agents on the regular lattice. Large-scale simulations indicate that, compared to the model with only one update rule, the the role of update dynamics should be paid more attention in cooperation behavior exhibits the richer phenomena, and the evolutionary game theory. Meanwhile, we also observe that the introduction of Moran rule, which needs to consider all neighbor＇s information, can markedly promote the aggregate cooperation level, that is, randomly selecting the neighbor proportional to its payoff to imitate will facilitate the cooperation among agents. Current results will contribute to further understand the cooperation dynamics and evolutionary behaviors within many biological, economic and social systems.

关键词： spatial prisoner＇s dilemma game Fermi update rule Moran update rule spatial snowdrift game cooperation promotion regular lattice

来源：评论

学校读者我要写书评

暂无评论

Effect of Growing Size of Interaction Neighbors on the Evolution of Cooperation in Spatial Snowdrift Game

引用

Communications in Theoretical Physics 2012年第4期57卷 541-546页

作者：张娟娟王娟孙世温王莉王震夏承遗 Key Laboratory of Computer Vision and System(Ministry of Education)and Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology School of Automation Tianjin University of Technology School of Software Technology Dalian University of Technology

In this paper,we study the influence of the size of interaction neighbors(k) on the evolution of cooperation in the spatial snowdrift *** first,we consider the effects of noise K and cost-to-benefit ratio r,the simulation results indicate that the evolution of cooperation depends on the combined action of noise and cost-to-benefit *** a lower r,the cooperators are multitudinous and the cooperation frequency ultimately increases to 1 as the increase of ***,for a higher r,the defectors account for the majority of the game and dominate the game if the noise is large *** we mainly investigate how k influences the evolution of cooperation by varying the noise in *** find that the frequency of cooperators is closely related to the size of neighborhood and cost-to-benefit ratio *** the case of lower r,the augmentation of k plays no positive role in promoting the cooperation as compared with that of k = 4,while for higher r the cooperation is improved for a growing size of *** last,based on the above discussions,we explore the cluster-forming mechanism among the *** current results are beneficial to further understand the evolution of cooperation in many natural,social and biological systems.

关键词： spatial snowdrift game interaction neighborhood emergence of cooperation regular lattice

来源：评论

学校读者我要写书评

暂无评论

Generation of multicolor vacuum ultraviolet pulses through four-wave sum-frequency mixing in argon

引用

Physical Review A 2013年第5期88卷 053825-053825页

作者： Liping Shi Wenxue Li Hui Zhou Di Wang Liang'en Ding Heping Zeng State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 China Shanghai Key Laboratory of Modern Optical System Engineering Research Center of Optical Instrument and System Ministry of Education School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology Shanghai 200093 China

We demonstrate efficient generation of multicolor vacuum ultraviolet pulses with excellent mode quality through χ(3)-based four-wave sum-frequency mixing and third-order harmonic generation of 400- and 267-nm femtosecond laser pulses in argon gas. The χ(3)-based nonlinear optical processes were optimized with appropriate control of gas pressure and group velocity delay between the driving pulses. Furthermore, the pulse breakup effects were observed for tightly focused ultraviolet pulses.

关键词： Laser pulses

来源：评论

学校读者我要写书评

暂无评论

Erratum to: Antimicrobials: a global alliance for optimizing their rational use in intra-abdominal infections (AGORA)

引用

World journal of emergency surgery : WJES 2017年第1期12卷 35页

作者： M Sartelli D G Weber E Ruppé M Bassetti B J Wright L Ansaloni F Catena F Coccolini F M Abu-Zidan R Coimbra E E Moore F A Moore R V Maier J J De Waele A W Kirkpatrick E A Griffiths C Eckmann A J Brink J E Mazuski A K May R G Sawyer D Mertz P Montravers A Kumar J A Roberts J L Vincent R R Watkins W Lowman B Spellberg I J Abbott A K Adesunkanmi S Al-Dahir M N Al-Hasan F Agresta A A Althani S Ansari R Ansumana G Augustin M Bala Z J Balogh O Baraket A Bhangu M A Beltrán M Bernhard W L Biffl M A Boermeester S M Brecher J R Cherry-Bukowiec O R Buyne M A Cainzos K A Cairns A Camacho-Ortiz S J Chandy A Che Jusoh A Chichom-Mefire C Colijn F Corcione Y Cui D Curcio S Delibegovic Z Demetrashvili B De Simone S Dhingra J J Diaz I Di Carlo A Dillip S Di Saverio M P Doyle G Dorj A Dogjani H Dupont S R Eachempati M A Enani V N Egiev M M Elmangory P Ferrada J R Fitchett G P Fraga N Guessennd H Giamarellou W Ghnnam G Gkiokas S R Goldberg C A Gomes H Gomi M Guzmán-Blanco M Haque S Hansen A Hecker W R Heizmann T Herzog A M Hodonou S K Hong R Kafka-Ritsch L J Kaplan G Kapoor A Karamarkovic M G Kees J Kenig R Kiguba P K Kim Y Kluger V Khokha K Koike K Y Kok V Kong M C Knox K Inaba A Isik K Iskandar R R Ivatury M Labbate F M Labricciosa P F Laterre R Latifi J G Lee Y R Lee M Leone A Leppaniemi Y Li S Y Liang T Loho M Maegele S Malama H E Marei I Martin-Loeches S Marwah A Massele M McFarlane R B Melo I Negoi D P Nicolau C E Nord R Ofori-Asenso A H Omari C A Ordonez M Ouadii G A Pereira Júnior D Piazza G Pupelis T M Rawson M Rems S Rizoli C Rocha B Sakakushev M Sanchez-Garcia N Sato H A Segovia Lohse G Sganga B Siribumrungwong V G Shelat K Soreide R Soto P Talving J V Tilsed J F Timsit G Trueba N T Trung J Ulrych H van Goor A Vereczkei R S Vohra I Wani W Uhl Y Xiao K C Yuan S K Zachariah J R Zahar T L Zakrison A Corcione R M Melotti C Viscoli P Viale Department of Surgery Macerata Hospital Via Santa Lucia 2 62100 Macerata Italy. Department of Trauma Surgery Royal Perth Hospital Perth Australia. Genomic Research Laboratory Geneva University Hospitals Geneva Switzerland. Infectious Diseases Division Santa Maria Misericordia University Hospital Udine Italy. Department of Emergency Medicine and Surgery Stony Brook University School of Medicine Stony Brook NY USA. General Surgery Department Papa Giovanni XXIII Hospital Bergamo Italy. Department of General Maggiore Hospital Parma Italy. Department of Surgery "Infermi" Hospital Rimini Italy. Department of Surgery College of Medicine and Health Sciences UAE University Al-Ain United Arab Emirates. Department of Surgery UC San Diego Medical Center San Diego USA. Department of Surgery University of Colorado Denver Health Medical Center Denver CO USA. Department of Surgery Division of Acute Care Surgery and Center for Sepsis and Critical Illness Research University of Florida College of Medicine Gainesville FL USA. Department of Surgery University of Washington Seattle WA USA. Department of Critical Care Medicine Ghent University Hospital Ghent Belgium. General Acute Care and Trauma Surgery Foothills Medical Centre Calgary AB Canada. General and Upper GI Surgery Queen Elizabeth Hospital Birmingham UK. Department of General Visceral and Thoracic Surgery Klinikum Peine Academic Hospital of Medical University Hannover Peine Germany. Department of Clinical microbiology Ampath National Laboratory Services Milpark Hospital Johannesburg South Africa. Department of Surgery School of Medicine Washington University in Saint Louis Saint Louis MO USA. Departments of Surgery and Anesthesiology Division of Trauma and Surgical Critical Care Vanderbilt University Medical Center Nashville TN USA. Department of Surgery University of Virginia Health System Charlottesville VA USA. Departments of Medicine Clinical Epidemiology and Biostatistics and Pathology and Mo

[This corrects the article DOI: 10.1186/s13017-016-0089-y.].

关键词：

来源：评论

学校读者我要写书评

暂无评论

Dynamic Spray and Wait routing protocol for delay tolerant networks

Dynamic Spray and Wait routing protocol for delay tolerant n...

引用

9th IFIP International Conference on Network and Parallel computing, NPC 2012

作者： Zhang, Longbo Yu, Chen Jin, Hai Services Computing Technology and System Lab School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 China

ISBN: (纸本)9783642356056

Delay Tolerant Networks (DTN) is one of the mobile wireless networks that cannot set up the end-to-end communication path between the source and destination nodes pair in most of time. In this paper, we propose an improved routing protocol named as Dynamic Spray & Wait (DS&W), which is based on Spray and Wait routing strategy attempting to gain the higher delivery ratio benefits of replication-based routing as well as the lower resource utilization benefits of forwarding-based routing. But different from S&W, DS&W routing strategy focus on dynamic control to reduce the scale of the messages' flooding by calculating the delivery success probabilities to destinations. DS&W routing protocol can dramatically reduce the overhead ratio in DTNs. Simulation results also evident that DS&W protocol outperforms other existing DTN routing protocols. © IFIP International Federation for Information Processing 2012.

关键词： Wireless networks

来源：评论

学校读者我要写书评

暂无评论

Encrypted remote user authentication scheme by using smart card

Encrypted remote user authentication scheme by using smart c...

引用

2012 International Conference on Web Information systems and Mining, WISM 2012

作者： Yassin, Ali A. Jin, Hai Ibrahim, Ayad Zou, Deqing Services Computing Technology and System Lab School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 China

ISBN: (纸本)9783642334689

Smart card-based authentication is considered as one of the most excessively used and applied solutions for remote user authentication. In this paper, we display Wang et al.'s scheme and indicate many shortcomings in their scheme. Password guessing, masquerade, Denial-Of-Service (DOS) and insider attacks could be effective. To outfight the drawbacks, we propose a strong, more secure and practical scheme, which is aimed to withstand wellknown attacks. In addition, our proposed scheme provides many pivotal merits: more functions for security and effectiveness, mutual authentication, key agreement, freely chosen password, secure password change, and user anonymity. Moreover, our proposed scheme is shown to be secure against replay attack, password guessing attack, DOS attack, insider attack, and impersonate attack. Furthermore, the security analysis of our work gains it to appear in applications with high-security requirements. © Springer-Verlag Berlin Heidelberg 2012.

关键词： Smart cards

来源：评论

学校读者我要写书评

暂无评论

Parallelization mechanisms of neighbor-joining for CUDA enabled devices

Parallelization mechanisms of neighbor-joining for CUDA enab...

引用

7th ChinaGrid Annual Conference, ChinaGrid 2012

作者： Zheng, Ran Zhang, Qiongyao Jin, Hai Shao, Zhiyuan Feng, Xiaowen Services Computing Technology and System Lab School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 China

ISBN: (纸本)9780769548166

Multiple Sequence Alignment (MSA) is a fundamental process in bioinformatics in which phylogenetic tree reconstruction is an essential operation. Neighbor-Joining algorithm is the best approach to reconstruct phylogenetic tree with its less time and space costs. With the rapid increase of biological sequences, it will take many hours or even days to reconstruct phylogenetic tree because of the complex computing for multiple sequence alignment. In this paper, two mechanisms for parallelizing Neighbor-Joining algorithm are proposed based on CUDA to get higher performance of lower time and space costs. Data dependency is reduced by converting the running mode and dynamic multiple granularity mechanism is used to figure out imbalance guiding tree with lower rate of resources occupation and higher efficiency. The parallelization mechanisms have achieved average speedups of 18.6 for thousands of datasets as well as far genetic relationship datasets compared to the basic method. © 2012 IEEE.

关键词： Bioinformatics

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：