检索结果-内蒙古大学图书馆

International Joint Conference on Neural Networks (IJCNN)

作者： Hui Wang Hai Li Robinson E. Pino Department of Electrical and Computer Engineering Polytechnic Institute of New York University Brooklyn NY USA Information Directorate Advanced Computing Architectures Air Force Research Laboratory Rome NY USA

ISBN: (纸本)9781467314886

Memristors have been rediscovered recently and then gained increasing attentions. Their unique properties, such as high density, nonvolatility, and recording historic behavior of current (or voltage) profile, have inspired the creation of memristor-based neuromorphic computing architecture. Rather than the existing crossbar-based neuron network designs, we focus on memristor-based synapse and the corresponding training circuit to mimic the real biological system. In this paper, first, the basic synapse design is presented. On top of it, we will discuss the training sharing scheme and explore design implication on multi-synapse neuron system. Energy saving method such as self-training is also investigated.

关键词： Training Memristors Neurons computer architecture Neuromorphics Materials Biological system modeling

来源：评论

学校读者我要写书评

暂无评论

Reports of the AAAI 2011 conference workshops

Reports of the AAAI 2011 conference workshops

引用

作者： Agmon, Noa Agrawal, Vikas Aha, David W. Aloimonos, Yiannis Buckley, Donagh Doshi, Prashant Geib, Christopher Grasso, Floriana Green, Nancy Johnston, Benjamin Kaliski, Burt Kiekintveld, Christopher Law, Edith Lieberman, Henry Mengshoel, Ole J. Metzler, Ted Modayil, Joseph Oard, Douglas W. Onder, Nilufer O'Sullivan, Barry Pastra, Katerina Precup, Doina Ramachandran, Sowmya Reed, Chris Sariel-Talay, Sanem Selker, Ted Shastri, Lokendra Singh, Satinder Smith, Stephen F. Srivastava, Siddharth Sukthankar, Gita Uthus, David C. Williams, Mary-Anne Department of Computer Science University of Texas at Austin United States Center for Knowledge Driven Information Systems Infosys Labs India Adaptive Systems Section Naval Research Laboratory Washington DC United States Department of Computer Science University of Maryland College Park United States EMC's Center of Excellence in Ireland Research Europe at EMC Ireland Department of Computer Science University of Georgia United States School of Informatics University of Edinburgh United Kingdom Department of Computer Science University of Liverpool United Kingdom Department of Computer Science University of North Carolina Greensboro United States Faculty of Engineering and Information Technology University of Technology Sydney Australia VeriSign Inc. United States Department of Computer Science University of Texas at El Paso United States Machine Learning Department Carnegie Mellon University United States Massachusetts Institute of Technology Media Laboratory United States Carnegie Mellon University's Silicon Valley Campus United States Darrell W. Hughes Program for Religion and Science Dialogue Oklahoma City University United States Department of Computing Science University of Alberta Canada College of Information Studies Institute for Advanced Computer Studies University of Maryland College Park United States Department of Computer Science Michigan Technological University United States Department of Computer Science University College Cork Ireland Cognitive Systems Research Insitute Athens Greece School of Computer Science McGill University Canada Stottler Henke Inc. United States School of Computing University of Dundee United Kingdom Department of Computer Engineering Istanbul Technical University Turkey Convergence Lab Infosys Technologies Ltd. United States Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor United States Robotics Institute Carnegie Mellon University United States University of Wisconsin

The AAAI-11 workshop program was held Sunday and Monday, August 7-18, 2011, at the Hyatt Regency San Francisco in San Francisco, California USA. The AAAI-11 workshop program included 15 workshops covering a wide range of topics in artificial intelligence. The titles of the workshops were Activity Context Representation: Techniques and Languages;Analyzing Microtext;Applied Adversarial Reasoning and Risk Modeling;Artificial Intelligence and Smarter Living: The Conquest of Complexity;Artifiicial Intelligence for Data Center Management and Cloud computing;Automated Action Planning for Autonomous Mobile Robots;Computational Models of Natural Argument;Generalized Planning;Human Computation;Human-Robot Interaction in Elder Care;Interactive Decision Theory and Game Theory, 2010;Language-Action Tools for Cognitive Artificial Agents: Integrating Vision, Action, and Language;Lifelong Learning from Sensorimotor Experience;Plan, Activity, and Intent Recognition;and Scalable Integration of Analytics and Visualization. This article presents short summaries of those events. Copyright © 2012, Association for the Advancement of Artificial Intelligence. All rights reserved.

关键词： Human robot interaction

来源：评论

学校读者我要写书评

暂无评论

Bias analyses of spontaneous facial expression database

Bias analyses of spontaneous facial expression database

引用

International Conference on Pattern Recognition

作者： Zhaoyu Wang Shangfei Wang Yachen Zhu Qiang Ji Key Laboratory of Computing and Communicating Software of Anhui Province School of Computer Science and Technology University of Science and Technology of China Hefei Anhui China Department of Electrical Computer and Systems Engineering Rensselaer Polytechnic Institute Troy NY USA

ISBN: (纸本)9781467322164

In this paper, cross-corpora evaluations are used to analyze the bias of spontaneous facial expression databases. Local binary pattern, Gabor, eigenface and fisherface features are extracted and applied to the four spontaneous expression databases: USTC-NVIE, VAM, Belfast Naturalistic and SEMAINE to recognize arousal (high/low) and valance (positive/negative) respectively. Experimental results indicate that there exists bias among different spontaneous expression databases. The emotion-induction methods, the variety of subjects and the quantity of raters may have caused such a bias.

关键词： Databases Feature extraction Face recognition Videos Principal component analysis Training

来源：评论

学校读者我要写书评

暂无评论

quantum key distribution with delayed privacy amplification and its application to the security proof of a two-way deterministic protocol

引用

Physical Review A 2012年第3期85卷 032308-032308页

作者： Chi-Hang Fred Fung Xiongfeng Ma H. F. Chau Qing-yu Cai Department of Physics and Center of Computational and Theoretical Physics University of Hong Kong Pokfulam Road Hong Kong Center for Quantum Information and Quantum Control Department of Physics and Department of Electrical & Computer Engineering University of Toronto Toronto Ontario Canada State Key Laboratory of Magnetics Resonances and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences Wuhan 430071 People's Republic of China

Privacy amplification (PA) is an essential postprocessing step in quantum key distribution (QKD) for removing any information an eavesdropper may have on the final secret key. In this paper, we consider delaying PA of the final key after its use in one-time pad encryption and prove its security. We prove that the security and the key generation rate are not affected by delaying PA. Delaying PA has two applications: it serves as a tool for significantly simplifying the security proof of QKD with a two-way quantum channel, and also it is useful in QKD networks with trusted relays. To illustrate the power of the delayed PA idea, we use it to prove the security of a qubit-based two-way deterministic QKD protocol which uses four states and four encoding operations.

关键词： quantum cryptography

来源：评论

学校读者我要写书评

暂无评论

Symmetric M-ary phase discrimination using quantum-optical probe states

引用

Physical Review A 2012年第2期86卷 022306-022306页

作者： Ranjith Nair Brent J. Yen Saikat Guha Jeffrey H. Shapiro Stefano Pirandola Department of Electrical and Computer Engineering National University of Singapore Singapore 117583 4 Engineering Drive 3 Singapore Quantum Information Processing Group Raytheon BBN Technologies Cambridge MA 02138 United States Research Laboratory of Electronics Massachusetts Institute of Technology Cambridge MA 02139 United States Department of Computer Science University of York York YO10 5GH United Kingdom

We present a theoretical study of minimum error probability discrimination, using quantum-optical probe states, of M optical phase shifts situated symmetrically on the unit circle. We assume ideal lossless conditions and full freedom for implementing quantum measurements and for probe-state selection, subject only to a constraint on the average energy, i.e., photon number. In particular, the probe state is allowed to have any number of signal and ancillary modes and to be pure or mixed. Our results are based on a simple criterion that partitions the set of pure probe states into equivalence classes with the same error probability performance. Under an energy constraint, we find the explicit form of the state that minimizes the error probability. This state is an unentangled but nonclassical single-mode state. The error performance of the optimal state is compared with several standard states in quantum optics. We also show that discrimination with zero error is possible only beyond a threshold energy of (M−1)/2. For the M=2 case, we show that the optimum performance is readily demonstrable with current technology. While transmission loss and detector inefficiencies lead to a nonzero erasure probability, the error rate conditional on no erasure is shown to remain the same as the optimal lossless error rate.

关键词： Probes

来源：评论

学校读者我要写书评

暂无评论

Petri net-based real-time scheduling of time-constrained single-arm cluster tools with activity time variation

Petri net-based real-time scheduling of time-constrained sin...

引用

IEEE International Conference on Robotics and Automation (ICRA)

作者： Yan Qiao NaiQi Wu MengChu Zhou Department of Industrial Engineering School of Mechatronics Engineering Guangdong University of Technology Guangzhou China The Key Laboratory of Embedded System and Service Computing Ministry of Education University of Tongji Shanghai China Department of Electrical and Computer Engineering New Jersey Institute of Technology Newark NJ USA

It is challenging to schedule time-constrained cluster tools subject to activity time variation. With the help of their Petri net model, a real-time control policy is used to offset the activity time variation. Based on it, the schedulability conditions and scheduling algorithms are presented for single-arm cluster tools. The schedulability conditions can be analytically checked. Algorithms are developed based on analytical expressions such that it is also computationally efficient. The schedule obtained by the scheduling algorithms together with a real-time control policy forms the real-time schedule. It is optimal in terms of cycle time.

关键词： Robots Semiconductor device modeling Schedules Load modeling Real time systems Manganese Bismuth

来源：评论

学校读者我要写书评

暂无评论

An Optimal Packet Aggregation Scheme in Delay-Constrained IEEE 802.11n WLANs

An Optimal Packet Aggregation Scheme in Delay-Constrained IE...

引用

International Conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Peyman Teymoori Aresh Dadlani Khosrow Sohraby Kiseon Kim Department of Nanobio Materials and Electronics Gwangju Institute of Science and Technology Gwangju South Korea School of Electrical and Computer Engineering University of Tehran Tehran Iran School of Computing and Engineering University of Missouri-Kansas City Kansas MO USA

ISBN: (纸本)9781612846842

With the successful deployment of IEEE 802.11a/b/g wireless local area networks (WLANs) and the pent-up market demand for high speed wireless access, the IEEE 802.11n protocol has emerged as a promising standard with major enhancements. In order to scale to the high physical layer transmission rate of up to 600 Mbps, the current medium access control (MAC) protocol requires significant improvements. Towards this end, several packet aggregation schemes have been proposed to reduce the inherent protocol overhead. However, choosing large frame sizes would result in increased channel access delay and jitter especially in delay-critical applications. In this paper, we propose an analytical model to obtain the optimal frame size with regard to the delay constraints of nodes. In particular, we model IEEE 802.11n aggregation scheme as a constrained convex optimization problem so as to maximize network throughput performance while considering delay constraints. Simulation results justify that our proposed model exactly satisfies average delay requirements of network nodes.

关键词： Delay Throughput IEEE 802.11n Standard Wireless communication Analytical models Protocols

来源：评论

学校读者我要写书评

暂无评论

Speeding up optimum-path forest training by path-cost propagation

Speeding up optimum-path forest training by path-cost propag...

引用

International Conference on Pattern Recognition

作者： Adriana S. Iwashita João P. Papa Alexandre X. Falcão Roberto A. Lotufo Victor M. de Araujo Oliveira Victor H. Costa de Albuquerque João Manuel R. S. Tavares Department of Computing São Paulo State University Bauru Brazil University of Campinas Institute of Computing Campinas Brazil University of Campinas School of Electrical and Computer Engineering Campinas Brazil Center of Technological Sciences University of Fortaleza Fortaleza Brazil Faculty of Engineering of the University of Porto Porto Portugal

ISBN: (纸本)9781467322164

In this paper we present an optimization of the Optimum-Path Forest classifier training procedure, which is based on a theoretical relationship between minimum spanning forest and optimum-path forest for a specific path-cost function. Experiments on public datasets have shown that the proposed approach can obtain similar accuracy to the traditional one but with faster data training.

关键词： Training Prototypes Accuracy Pattern recognition Vegetation Optimized production technology

来源：评论

学校读者我要写书评

暂无评论

Is the clustering coefficient a measure for fault tolerance in wireless sensor networks?

Is the clustering coefficient a measure for fault tolerance ...

引用

IEEE International Conference on Communications (ICC)

作者： Matthias R. Brust Damla Turgut Carlos H. C. Ribeiro Marcus Kaiser Department of Electrical Engineering and Computer Science University of Central Florida Orlando FL USA Computer Science Division Technological Institute of Aeronautics Brazil School of Computing Science University of Newcastle UK Department of Brain and Cognitive Sciences Seoul National University South Korea

Distributed systems such as the Internet and wireless sensor networks must provide a high degree of resilience against errors and attacks. Besides steps that increase reliability of data and resources of the network, the topology structure itself plays a crucial role in the efficacy of the fault-tolerance behavior. The network topology is a supportive factor to reduce or avoid malfunction behavior of the system after a strike on a strategic node or a random failure of a node. For a self-organizing topology with numerous nodes, it is necessary to have a local fault tolerance measure instead of collecting information of the entire network to adjust the topology locally when needed. The local clustering coefficient determines the degree of the connectedness of the node's neighbors. The correlation between the clustering coefficient and fault tolerance is an open research problem. In this paper, we propose the clustering coefficient as a local metric for fault tolerance, in particular for wireless sensor networks. We describe how to increase the clustering coefficient by (a) exclusively adding and (b) exclusively removing links to a wireless sensor network topology. Simulation results indicate that the clustering coefficient is correlated to the fault tolerance of the system.

关键词： Fault tolerance Fault tolerant systems Wireless sensor networks Network topology Topology Ad hoc networks Optimization

来源：评论

学校读者我要写书评

暂无评论

A phonon scattering assisted injection and extraction based terahertz quantum cascade laser

A phonon scattering assisted injection and extraction based ...

引用

作者： Dupont, E. Fathololoumi, S. Wasilewski, Z.R. Aers, G. Laframboise, S.R. Lindskog, M. Razavipour, S.G. Wacker, A. Ban, D. Liu, H.C. Institute for Microstructural Sciences National Research Council Ottawa ON K1A0R6 Canada Department of Electrical and Computer Engineering Waterloo Institute of Nanotechnology University of Waterloo 200 University Ave W. Waterloo ON N2L3G1 Canada Division of Mathematical Physics Lund University Box 118 Lund 22100 Sweden Key Laboratory of Artificial Structures and Quantum Control Department of Physics Shanghai Jiao Tong University Shanghai 200240 China

A lasing scheme for terahertz quantum cascade lasers, based on consecutive phonon-photon-phonon emissions per module, is proposed and experimentally demonstrated. The charge transport of the proposed structure is modeled using a rate equation formalism. An optimization code based on a genetic algorithm was developed to find a four-well design in the GaAs/Al0.25Ga 0.75As material system that maximizes the product of population inversion and oscillator strength at 150 K. The fabricated devices using Au double-metal waveguides show lasing at 3.2 THz up to 138 K. The electrical characteristics display no sign of differential resistance drop at lasing threshold, which, in conjunction with the low optical power of the device, suggest-thanks to the rate equation model-a slow depopulation rate of the lower lasing state, a hypothesis confirmed by non-equilibrium Green's function calculations. © 2012 Crown.

关键词： Gallium arsenide

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：