检索结果-内蒙古大学图书馆

IEEE International Conference on Communications

作者： Yiannos Kryftis Constandinos X. Mavromoustakis Joel J. P. C. Rodrigues George Mastorakis Evangelos Pallis Ciprian Dobre Jordi Mongay Batalla Georgios Kormentzas Department of Computer Science University of Nicosia Department of Informatics Instituto de Telecomunicacoes University of Beira Interior Portugal and University ITMO Department of Informatics Engineering Technological Educational Institute of Crete Faculty of Autonomic Control and Computers University Politehnica of Bucharest National Institute of Telecommunications Department of Information and Communication Systems Engineering University of the Aegean

ISBN: (纸本)9781467364300

This paper proposes two algorithms adopted in a prototype network architecture, for optimal selection of multimedia content delivery methods, as well as balanced delivery load, by exploiting a novel resource prediction engine. The proposed architecture exploits both algorithms for the prediction of future multimedia services demands, by providing the ability to keep optimal the distribution of the streaming data, among Content Delivery Networks, cloud-based providers and Home Media Gateways. In addition, the prediction of the upcoming fluctuations of the network, provides the ability to the proposed network architecture, achieving optimized Quality of Service (QoS) and Quality of Experience (QoE) for the end users. Both algorithms were evaluated to establish their efficiency, towards effectively predicting future network traffic demands. The experimental results validated their performance and indicated fields for further research and experimentation.

关键词： Resource Prediction Engine Resource Usage Prediction Algorithms Content Delivery Networks Multimedia Services Systems

来源：评论

学校读者我要写书评

暂无评论

A forward-backward subsequence smoothing based eigen approach to clutter rejection in color flow imaging 15

引用

15th International Conference on Biomedical engineering, ICBME 2013

作者： Shen, Z. Zhang, N. Shen, Y. Lee, C.-H. Department of Control Science and Engineering Harbin Institute of Technology Harbin China School of Electric and Computer Engineering Georgia Institute of Technology AtlantaGA United States

ISBN: (纸本)9783319029122

In color flow image (CFI), the prevalent clutter filters fail to accurately separate blood flow signal from the demodulated ultrasound echo signal containing undesired clutter with single-ensemble (S-E) samples of small pulse size. A novel clutter filter design framework based on forward-backward subsequence smoothing (FBSS) as an extension to the prevalent eigen-based method is proposed. The proposed FBSS algorithm simulates the multi-ensemble behaviors with only single-ensemble (S-E) samples such that a fixed-length segment of each S-E sample is considered as a short conventional S-E vector. By moving forward and backward one sample, many vectors of the same-length can be created. This process can be repeated until all sample points in the original S-E sequence is exhausted and the collection of these vectors are considered as a simulated M-E ensemble. The pulse size needed to guarantees a nonsingular property of autocorrelation matrix in the FBSS framework is usually three-quarter of those used in the Hankel framework. As a consequence, FBSS leads to a good discrimination between the clutter and blood flow components for the low-velocity blood flow signals. Based on the results obtained from a series of simulations, the proposed FBSS eigen-based filter is shown to achieve a superior performance to the state-of-the-art regression and Hankel-SVD filters in estimating the blood flow velocities. © Springer International Publishing Switzerland 2014.

关键词： Clutter (information theory)

来源：评论

学校读者我要写书评

暂无评论

Reducing Conservativeness in Robust Iterative Learning control (ILC) Design Using Parameter-dependent Lyapunov Functions

Reducing Conservativeness in Robust Iterative Learning Contr...

引用

American control Conference

作者： Blazej Cichy Krzysztof Galkowski Eric Rogers Institute of Control and Computation Engineering University of Zielona Gora ul. Podgorna 50 65-246 Zielona Gora Poland Electronics and Computer Science University of Southampton Southampton SO17 1BJ UK

ISBN: (纸本)9781479917730

Iterative learning control was developed for systems that repeat the same task over a finite duration with resetting to the starting point once each execution is complete. The distinguishing feature of this form of control is the use of information from previous executions of the task to update the control signal to be applied on the next execution and thereby sequentially improve performance. Once an execution is complete, all information generated is available for use in control design and how to best use such information is a dominant issue. In applications, robust control is also a critical feature and the new results in this paper use parameter dependent Lyapunov functions to enlarge the uncertainty range allowed for successful design. These results are developed by treating ILC in a repetitive process setting.

关键词： design control Legal Executions Liapunov function Iterative learning control Forms control

来源：评论

学校读者我要写书评

暂无评论

An integrative study of home energy management for residential energy consumers

An integrative study of home energy management for residenti...

引用

IEEE International Conference on Cyber Technology in Automation, control, and Intelligent Systems

作者： Dong Zhang Peng Zeng Yanyu Zhang Shuhui Li State Grid Tianjin Electric Power Research Institute Tianjin China Key Lab. of Networked Control System Chinese Academy of Sciences Shenyang China Department of Electrical & Computer Engineering University of Alabama Tuscaloosa AL USA

This paper studies how to optimize the energy usage of home appliances in the demand response framework from the consumer's perspective. The loads of major home appliances are divided into three categories: fixed loads, regulate-able loads, and deferrable loads. For efficient usage of the home appliances, an integrative optimization of the three category loads is needed. The paper investigates the relation of the integrative optimization and individual optimization of each category load. A regression-based learning strategy is employed to learn HAVC energy consumption model for development of more efficient DR policy. The study is conducted through an integrative computational experiment approach that combines a home energy simulator and MATLAB together for demand response development and evaluation. The paper examines how the integrative demand response of the residential home appliances are affected by dynamic pricing tariffs, seasons, and weather. Case studies are conducted by considering home energy consumption, dynamic electricity pricing schemes, and demand response methods.

关键词： Home appliances Energy consumption Load modeling Optimization Load management Water heating Thermostats

来源：评论

学校读者我要写书评

暂无评论

Closed-Loop Applicability of the Sign-Perturbed Sums Method

Closed-Loop Applicability of the Sign-Perturbed Sums Method

引用

IEEE Annual Conference on Decision and control

作者： Balazs Csanad Csaji Erik Weyer Fraunhofer Project Center at MTA SZTAKI: The Institute for Computer Science and Control Hungarian Academy of Sciences Kende utca 13-17 Budapest Hungary H-1111 Department of Electrical and Electronic Engineering Melbourne School of Engineering The University of Melbourne 240 Grattan Street Victoria 3010 Australia

ISBN: (纸本)9781479978878

Sign-Perturbed Sums (SPS) is a non-asymptotic system identification method that can construct confidence regions for general linear systems. It works under mild statistical assumptions, such as symmetric and independent noise terms. The SPS confidence region includes the prediction error estimate (PEM) and, for any finite sample and user-chosen confidence probability, it contains the true system parameter with exactly the given probability. Originally, SPS was introduced for open-loop systems, this paper overviews its applicability in closed-loop setups. The three main PEM approaches of closed-loop identification are addressed: direct, indirect and joint input-output, and it is discussed whether SPS can be applied to construct guaranteed finite sample confidence regions around these PEM estimates. Some parametrization issues are also highlighted and, finally, two numerical experiments are presented demonstrating SPS for closed-loop systems.

关键词： Induction loop systems system parameter Closed loop systems CLOSED LOOP sums Linear system confidence CENTROSYMMETRIC

来源：评论

学校读者我要写书评

暂无评论

Design and evaluation of real-time GNSS attitude determination systems using low cost receivers

引用

Transactions of the Korean institute of Electrical Engineers 2014年第9期63卷 1259-1265页

作者： Chae, Jeong Geun Lee, Dong Sun Kang, In-Suk Park, Chansik Dept. of Control and Robot Engineering Research Institute of Computer Information and Communication Chungbuk National University Korea Republic of SAMYUNG ENC Co. Ltd. Korea Republic of

In this paper, the real-time attitude determination based Matlab using low-cost receivers was designed and evaluated. The GNSS attitude determination system was implemented to operation in real-time by TimerCailback in MATLAB. The TTM(Transniission Time Misalignment) of U-blox receiver was confirmed through zero baseline tests and this problem was revised, The computed attitude by the high-cost NovAtel receiver was compared to the computed attitude by the low-cost U-blox receiver. As a result of this, the performance of attitude determination systems by low-cost receiver was confirmed. To determine baseline, LAMBDA and BC-LAMBDA for integer ambiguities search methods were used. To confirm suitable integer ambiguity search method in real-time attitude determination algorithm, determined baselines by two methods were compared, and it was confirmed that BC-LAMBDA is more suitable. As a result of this, the operation of real-time attitude determination system was confirmed using 3 low-cost receivers.

关键词： Costs

来源：评论

学校读者我要写书评

暂无评论

Principal component analysis anomaly detector for rotor broken bars

Principal component analysis anomaly detector for rotor brok...

引用

作者： Mustafa, Mohammed Obaid Georgoulas, George Nikolakopoulos, George Control Engineering Group Department of Computer Science Electrical and Space Engineering Lulea University of Technology LuleaSE-97187 Sweden Department of Computer Engineering Technological Educational Institute of Epirus Arta Greece

ISBN: (纸本)9781479940325

In this article a method for the detection of broken rotor bars in asynchronous machines operating under full load is presented. Unlike most Motor Current Signature Analysis (MCSA) approaches, which operate in the frequency domain, our method operates in the time domain. The scheme is based on the use of a Principal Component Analysis (PCA) fault/anomaly detector. PCA is applied on the three stator currents to subsequently calculate the Q statistic which is employed for detecting the presence/absence of a fault. The efficiency of the proposed scheme was experimentally evaluated using different fault severity levels, ranging from 1/4 of a broken bar to three broken bars. The obtained results indicate that the method can detect the caused asymmetry with a very restricted amount of data. © 2014 IEEE.

关键词： Principal component analysis

来源：评论

学校读者我要写书评

暂无评论

ISMAC: An Intelligent System for Customized Clinical Case Management and Analysis

Scientific World Journal

引用

Scientific World Journal 2015年第1期2015卷 473168页

作者： You, Mingyu Chen, Chong Li, Guo-Zheng Yan, Shi-Xing Sun, Sheng Zeng, Xue-Qiang Zhao, Qing-Ce Xu, Liao-Yu Huang, Su-Ying Department of Control Science and Engineering Tongji University Shanghai 200000 China Computer Center Nanchang University Nanchang 330000 China Shanghai Institute of Traditional Chinese Medical Literatures Shanghai 200000 China

Clinical cases are primary and vital evidence for Traditional Chinese Medicine (TCM) clinical research. A great deal of medical knowledge is hidden in the clinical cases of the highly experienced TCM practitioner. With a deep Chinese culture background and years of clinical experience, an experienced TCM specialist usually has his or her unique clinical pattern and diagnosis idea. Preserving huge clinical cases of experienced TCM practitioners as well as exploring the inherent knowledge is then an important but arduous task. The novel system ISMAC (Intelligent System for Management and Analysis of Clinical Cases in TCM) is designed and implemented for customized management and intelligent analysis of TCM clinical data. Customized templates with standard and expert-standard symptoms, diseases, syndromes, and Chinese Medince Formula (CMF) are constructed in ISMAC, according to the clinical diagnosis and treatment characteristic of each TCM specialist. With these templates, clinical cases are archived in order to maintain their original characteristics. Varying data analysis and mining methods, grouped as Basic Analysis, Association Rule, Feature Reduction, Cluster, Pattern Classification, and Pattern Prediction, are implemented in the system. With a flexible dataset retrieval mechanism, ISMAC is a powerful and convenient system for clinical case analysis and clinical knowledge discovery. © 2015 Mingyu You et al.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Specifying a middleware for distributed embedded vehicle control systems

Specifying a middleware for distributed embedded vehicle con...

引用

2014 IEEE International Conference on Vehicular Electronics and Safety, ICVES 2014

作者： Reschka, Andreas Nolte, Marcus Stolte, Torben Schlatow, Johannes Ernst, Rolf Maurer, Markus Institute of Control Engineering Technische Universität Braunschweig Braunschweig38106 Germany Institute of Computer and Network Engineering Technische Universität Braunschweig Braunschweig38106 Germany

ISBN: (纸本)9781479918829

The software of electric / electronic vehicle control systems is static in current series vehicles. Most of the systems do not allow maintenance or functional updates, especially in the field of driver assistance systems. Main causes are the testing effort for a software release and the wide variety of different configurations in different vehicle models. In this paper we take a closer look at the requirements for a middleware which allows such updates, verifies new software versions, and adds reconfiguration mechanisms for singular control units and distributed sets of control units. To derive the requirements we consider the general vehicular context with limitations in space, electric power, processing power, and costs together with four exemplary road vehicle control applications (cruise control, automatic parking, stability control, force feedback), and a full x-by-wire target vehicle for implementing these applications. The analysis of these three different sources of requirements results in desired middleware functionalities and requirements, especially concerning runtime timings and update timings. The requirements cover an update functionality with integrated verification, the exchange of applications on singular control units, and the degradation of functionality by switching between control units. © 2014 IEEE.

关键词： control unit Middleware software release control systems Vehicle control Driver Assistance Systems computer software

来源：评论

学校读者我要写书评

暂无评论

Design of iterative learning control schemes for systems with zero Markov parameters

Design of iterative learning control schemes for systems wit...

引用

IEEE Annual Conference on Decision and control

作者： Wojciech Paszke Eric Rogers Krzysztof Galkowski Institute of Control and Computation Engineering University of Zielona Gora ul. Szafrana 2 65-246 Zielona Gora Poland Department of Electronics and Computer Science University of Southampton Southampton SO17 1BJ UK

ISBN: (纸本)9781479978878

This paper gives new results on the design of iterative learning control laws in the repetitive process setting for error convergence and regulation of the transient dynamics. Such control laws are applied to systems that repeat the same operation, known as trials, over a finite duration. The underlying approach is to specify a reference trajectory and using the recorded data from the previous trials to update the control input signal such that the sequence of trial outputs converge to this specified trajectory. For linear time-invariant dynamics, successful design requires that the first Markov parameter is non-zero, i.e., the system transfer-function is proper. The new design in this paper allows direct treatment of strictly proper dynamics by use of anticipative action based on previous trial data and the resulting design computations are linear matrix inequality based. A simulation case study based on robotic manipulator dynamics, whose model was developed from experimentally measured data, is used to demonstrate the feasibility and effectiveness of the new design procedure.

关键词： Markov Iterative learning control identical operation Converge Direct Method Trials updated design control systems dynamics input signal Nonzero linear matrix inequalities experimentation trial trajectory

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：