检索结果-内蒙古大学图书馆

Self-learning Scheduling Approach for Wireless Sensor Network

Self-learning Scheduling Approach for Wireless Sensor Networ...

The 2010 2nd International Conference on Future computer and Communication(第二届未来计算机与通信国际会议 ICFCC 2010)

作者： Jianjun Niu State Key Laboratory of Intelligent Technology and Systems Tsinghua National Laboratory for Information Science and Technology Department of Computer Science and Technology Tsinghua University Beijing China Beijing Special Engineering Design and Research Institute Beijing China

ISBN: (纸本)9781424458219;9781424458240

Energy efficiency is one of key issues of wireless sensor network (VVSN). In this paper, we propose a self-learning scheduling approach (SSA) to reduce energy consumption for wireless sensor network (WSN). This approach integrates sleep scheduling together with packet transmission scheduling to reduce energy consumption. It enables nodes to learn continuous transmission parameters and sleep parameter through interacting with the WSN. The continuous value of transmission parameter is achieved by our extension of Q-learning method, and the value of sleep parameter can be calculated from the transmission parameter. We valid this approach in a MAC protocol and compare some network performances between the SSA and SMAC protocol. The simulation results show that our SSA performs much better than SMAC protocol in these QoS metrics.

关键词： Wireless sensor network scheduling reinforcement learning

来源：评论

学校读者我要写书评

暂无评论

On asymptotic consensus value in directed random networks

On asymptotic consensus value in directed random networks

引用

IEEE Conference on Decision and Control

作者： Victor M. Preciado Alireza Tahbaz-Salehi Ali Jadbabaie Department of Electrical and Systems Engineering University of Pennsylvania Philadelphia PA USA Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge MA USA General Robotics Automation Sensing and Perception (GRASP) Laboratory Department of Electrical and Systems Engineering University of Pennsylvania Philadelphia PA USA

ISBN: (纸本)9781424477456

We study the asymptotic properties of distributed consensus algorithms over switching directed random networks. More specifically, we focus on consensus algorithms over independent and identically distributed, directed random graphs, where each agent can communicate with any other agent with some exogenously specified probability. While different aspects of consensus algorithms over random switching networks have been widely studied, a complete characterization of the distribution of the asymptotic value for general asymmetric random consensus algorithms remains an open problem. In this paper, we derive closed-form expressions for the mean and an upper bound for the variance of the asymptotic consensus value, when the underlying network evolves according to an i.i.d. directed random graph process.

关键词： Eigenvalues and eigenfunctions Switches Markov processes Silicon Upper bound Closed-form solution Convergence

来源：评论

学校读者我要写书评

暂无评论

An Electronic Voting System for Haptic Touchscreen Interface

An Electronic Voting System for Haptic Touchscreen Interface

引用

International Conference on Complex, intelligent and Software Intensive systems, CISIS

作者： Hiroaki Nishino Ryotaro Goto Tsuneo Kagawa Kouichi Utsumiya Junji Hirooka Toshihiko Osada Nobuhiro Nagatomo Eiji Aoki Department of Computer Science and Intelligent Systems Oita University Oita Japan Kyushu Telecom Promotion Center Fukuoka Japan AVOC Company Limited Miyazaki Japan Institute of Hypernetwork Society Oita Japan

Various haptic displays are becoming available for implementing a new kind of human computer interaction (HCI) method. Among many types and models, touch panel displays have been used in wide variety of applications and are proven to be a useful interface infrastructure. In spite of their popularity, there are some weak points. The most serious drawback is their hardness to operate especially for the weak users in information technology such as the elderly and blind users. The tactile feedback function has a potential ability for enabling the weak to make full use of the devices. We propose an approach for effectively designing user-friendly haptic applications especially targeted at supporting the weak users. We exemplify our approach through the design and development of an electronic voting system. The system uses a touch panel haptic display for helping the weak to operate with straightforward touch sensations. It allows them to easily confirm, select, and vote their supporting candidate without any assisters. We also conducted a preliminary evaluation to verify the effectiveness of the system.

关键词： Electronic voting systems Haptic interfaces Feedback Application software Graphical user interfaces Mobile handsets Competitive intelligence computer displays Human computer interaction Information technology

来源：评论

学校读者我要写书评

暂无评论

Learning compliance control of robot manipulators in contact with the unknown environment

Learning compliance control of robot manipulators in contact...

引用

IEEE International Conference on Automation science and Engineering (CASE)

作者： Yanan Li Chenguang Yang Shuzhi Sam Ge Social Robotics Laboratory Interactive Digital Media Institute and NUS Graduate School of Integrative Sciences and Engineering National University of Singapore Singapore Department of Bioengineering Imperial College London London UK Institute of Intelligent Systems University of Electronic Science and Technology Chengdu China

ISBN: (纸本)9781424454471

In this paper, a control mechanism is presented to improve the compliance performance of the robot manipulator when it is in contact with the unknown environment. This mechanism guarantees that the dynamics of the whole system follows a target impedance model so that the desired compliance performance is obtained. In particular, under the assumption that the dynamics is periodic, a learning law is developed to estimate the unknown dynamics parameters. Besides, the proposed systematic learning control does not require the accurate force measurement. Its performance and robustness are discussed in details by the rigorous analysis. At last, the validity of the proposed method is verified by simulation.

关键词： Impedance Manipulator dynamics Force Control design Force measurement

来源：评论

学校读者我要写书评

暂无评论

Investigation of the relation between acoustic features and articulation — An application to emotional speech analysis

Investigation of the relation between acoustic features and ...

引用

International Symposium on Chinese Spoken Language Processing

作者： Yongxin Wang Jianwu Dang Lianhong Cai School of Information Science Japan Advanced Institute of Science and Technology Ishikawa Japan State Key Laboratory on Intelligent Technology and Systems Tsinghua National Laboratory of Information Science and Technology(TNList) Department of Computer Science and Technology Tsinghua University Beijing China School of Computer Science and Technology Tianjin University TJU Tianjin China

In speech communication, humans are able to perceive not only the acoustic features but also the articulation state from speech sounds. Some specific articulation configurations can carry certain non-linguistic information such as emotion. However, the relation between articulation and acoustic features is still not clear. To clarify such a relation, we analyzed speech data from the emotions of cold anger and hot anger based on an emotional speech corpus and attempt to realize the observations using a physiological articulatory model. We measured the changes in acoustic features when altering articulation states for individual speech organs using the physiological articulatory model. It is found that the cold and hot angers both have emphasized components in high-frequency region, while the former controls articulation and the latter controls the sound source of the speech production system.

关键词： Speech Acoustics Bandwidth Analytical models Feature extraction Data models Resonant frequency

来源：评论

学校读者我要写书评

暂无评论

Adaptive neural control for nonlinear distributed time-delay systems with delay-dependent control gains

Adaptive neural control for nonlinear distributed time-delay...

引用

Chinese Control Conference (CCC)

作者： Thanh-Trung Han Shuzhi Sam Ge Fuchun Sun Institute of Intelligent Systems and Information Technology (ISIT) University of Electronic Science and Technology of China Chengdu P. R. China Department of Computer Science and Technology Tsinghua University Beijing P. R. China

This paper addresses the problem of output tracking control for a class of nonlinear distributed time-delay systems whose control gains are delay-dependent and whose uncertainty involves both delay times and system nonlinearities. We introduce the framework of using delay-independent control to deal with unknown distributed delay dependence and using switching-based adaptive neural control to deal with unknown delay-dependent control gains. The control is designed in consideration of a Razumikhin norm condition on retarded functional state entailing efficiency with distributed delay dependence.

关键词： Artificial neural networks Approximation methods Delay Rendering (computer graphics) Switches Upper bound

来源：评论

学校读者我要写书评

暂无评论

Quantum State Reduction for Universal Measurement Based Computation

引用

Physical Review Letters 2010年第2期105卷 020502-020502页

作者： Xie Chen Runyao Duan Zhengfeng Ji Bei Zeng Department of Physics Massachusetts Institute of Technology Cambridge Massachusetts USA Centre for Quantum Computation and Intelligent Systems (QCIS) Faculty of Engineering and Information Technology University of Technology Sydney NSW Australia Department of Computer Science and Technology Tsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing China Perimeter Institute for Theoretical Physics Waterloo Ontario Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing China Institute for Quantum Computing University of Waterloo Waterloo Ontario Canada Department of Combinatorics and Optimization University of Waterloo Waterloo Ontario Canada

Measurement based quantum computation, which requires only single particle measurements on a universal resource state to achieve the full power of quantum computing, has been recognized as one of the most promising models for the physical realization of quantum computers. Despite considerable progress in the past decade, it remains a great challenge to search for new universal resource states with naturally occurring Hamiltonians and to better understand the entanglement structure of these kinds of states. Here we show that most of the resource states currently known can be reduced to the cluster state, the first known universal resource state, via adaptive local measurements at a constant cost. This new quantum state reduction scheme provides simpler proofs of universality of resource states and opens up plenty of space to the search of new resource states.

关键词： Quantum computers

来源：评论

学校读者我要写书评

暂无评论

Iterative learning control of a class of fractional order nonlinear systems

Iterative learning control of a class of fractional order no...

引用

IEEE International Symposium on intelligent Control (ISIC)

作者： Yan Li Hyo-Sung Ahn YangQuan Chen School of Control Science and Engineering Shandong University Shandong China Gwangju Institute of Science and Technology Gwangju South Korea Center for Self-Organizing and Intelligent Systems of Department of Electrical and Computer Engineering Utah State University Logan UT USA

This paper firstly addresses the convergence analysis of iterative learning control of a class of fractional order nonlinear systems using the generalized Gronwall-Bellman lemma. Detailed problem definition and conver... 详细信息

关键词： Nonlinear systems Convergence Simulation Fractional calculus Linear systems Differential equations Laplace equations

来源：评论

学校读者我要写书评

暂无评论

On convergence and optimality of genetic algorithms

On convergence and optimality of genetic algorithms

引用

Congress on Evolutionary Computation

作者： Witold Kosiński Stefan Kotowski Zbyszek Michalewicz Faculty of Mathematics Physics and Technology Kazimierz Wielki University Bydgoszcz Poland Faculty of Computer Science Polish-Japanese Institute of Information Technology Warsaw Poland Faculty of Computer Science Division of Intelligent Systems Polish Japanese Institute of Information Technology Warsaw Poland School of Computer Science University of Adelaide Adelaide SA Australia Institute of Fundamental Technological Research Warsaw Poland Department of Computer Sciences Polish Academy of Sciences Warsaw Poland

An action of genetic algorithm could be represented in the search space as a random Markovian process. The question concerning its asymptotic stability properties is discussed. Conditions under which genetic algorithm is convergent, are formulated. Then the existence of an operator to which infinite long iterations of the genetic algorithms tend, is shown. This operator describes optimal genetic algorithm in probabilistic sense.

关键词： Biological cells Markov processes Probabilistic logic Convergence Probability distribution computer science

来源：评论

学校读者我要写书评

暂无评论

Rotary nanomotors based on head-to-head nanotube shuttles

Rotary nanomotors based on head-to-head nanotube shuttles

引用

IEEE International Conference on robotics and Automation (ICRA)

作者： M. Hamdi A. Subramanian L. X. Dong A. Ferreira B. J. Nelson ENSI Bourges Institut PRISME Bourges France Center for Integrated Nanotechnologies Sandia National Laboratories Albuquerque NM USA Institute of Robotics and Intelligent Systems ETH Zurich Zurich Switzerland Department of Electrical & Computer Engineering Michigan State University East Lansing MI USA

A novel rotary nanomotor is described using two axially aligned, opposing chirality nanotube shuttles. Based on inter-shell screw-like motion of nanotubes, rotary motion is generated by electrostatically pulling the two cores together. Simulations using molecular dynamics show the generation of rotation from armchair nanotube pairs and their actuation properties. The simulation results, together with recently reported progress in realizing batch-fabricated ultra-high density nanotube shuttles, point towards the use of these motors as building blocks in nanoelectromechanical systems (NEMS) and nanorobotic systems for sensing, actuation, and computation applications.

关键词： Nanoelectromechanical systems Carbon nanotubes Micromotors Computational modeling intelligent robots Nanostructured materials Nanostructures Nanoscale devices Rotors Voltage

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：