检索结果-内蒙古大学图书馆

作者： Christov, Nicolai D. Konstantinov, Mihail M. Petkov, Petko Hr. Laboratory of Automatics Computer Engineering and Signal Processing Lille University of Science and Technology Villeneuve d'Ascq59655 France Department of Mathematics University of Architecture Civil Engineering and Geodesy Sofia1046 Bulgaria Department of Systems and Control Technical University of Sofia Sofia1000 Bulgaria

New local perturbation bounds for the continuous-time H∞-control problem are obtained, which are nonlinear functions of the data perturbations and are tighter than the existing condition number-based local bounds. These nonlinear local bounds are then incorporated into nonlocal perturbation bounds which are less conservative than the existing nonlocal perturbation estimates for the H∞-control problem. Copyright © 2014, Kent State University.

关键词： Riccati equations

来源：评论

学校读者我要写书评

暂无评论

A Game Theory Based Vertical Handoff Scheme for Wireless Heterogeneous Networks

A Game Theory Based Vertical Handoff Scheme for Wireless Het...

引用

International Conference on Mobile Ad-hoc and Sensor Networks, MSN

作者： Shuai Fu Jie Li Ruidong Li Yusheng Ji Department of computer science University of Tsukuba Tsukuba Japan National Institute of Information and Communications Technology Tokyo Japan Information Systems Architecture National Institute of Informatics Tokyo Japan

ISBN: (纸本)9781479973958

Next-generation wireless networks integrate multiple wireless access technologies to provide seamless wireless connectivity for mobile nodes (MNs). When MNs move in wireless heterogeneous networks, they may suffer from the great degradation of received signal strength (RSS) and further quality of services (QoS), if randomly selecting an access point (AP). We address vertical handoff with game theory to enable MNs to trigger the handoff and select an appropriate network from multiple wireless access technologies. On the other hand, the existing vertical handoff schemes lack of jointly considering the behaviors of MNs and APs for approaching the reality. To solve this problem, we propose a repeated game based scheme for vertical handoff. Each sub-game is formulated as a non-cooperative strategic game between a MN and an AP in which the Nash equilibrium is the solution of each strategic game. The proposed repeated game is to optimize the utility functions of the whole network by finding an equilibrium point. We perform the performance analysis, which shows that proposed scheme can achieve better bandwidth utilization and throughput of the network compared to the AP random selection scheme.

关键词： Games Manganese Wireless communication Nash equilibrium Bandwidth Quality of service Ad hoc networks

来源：评论

学校读者我要写书评

暂无评论

Selecting features with SVM

Selecting features with SVM

引用

18th Iberoamerican Congress on Pattern Recognition, CIARP 2013

作者： Rzeniewicz, Jacek Szymanśki, Julian Department of Computer Systems Architecture Gdańsk University of Technology Poland

ISBN: (纸本)9783642418211

A common problem with feature selection is to establish how many features should be retained at least so that important information is not lost. We describe a method for choosing this number that makes use of Support Vector Machines. The method is based on controlling an angle by which the decision hyperplane is tilt due to feature selection. Experiments were performed on three text datasets generated from a Wikipedia dump. Amount of retained information was estimated by classification accuracy. Even though the method is parametric, we show that, as opposed to other methods, once its parameter is chosen it can be applied to a number of similar problems (e.g. one value can be used for various datasets originating from Wikipedia). For a constant value of the parameter, dimensionality was reduced by from 78% to 90%, depending on the data set. Relative accuracy drop due to feature removal was less than 0.5% in those experiments. © Springer-Verlag 2013.

关键词： Feature Selection

来源：评论

学校读者我要写书评

暂无评论

TANGO:H: Creating active educational games for hospitalized children

TANGO:H: Creating active educational games for hospitalized ...

引用

International Symposium on Management Intelligent systems, IS-MiS 2013

作者： González, Carina Soledad Toledo, Pedro Padrón, Miguel Santos, Elena Cairos, Mariana Department of Engineering Systems and Automation and Architecture and Computer Technology University of La Laguna Spain Spain

ISBN: (纸本)9783319005683

This paper presents an interactive platform called TANGO:H (Tangible Goals: Health) for the creation of social active play with gestural interaction. This platform has been specially designed and adapted for its recreational, educational and rehabilitation use in children at hospital. The platform has a game editor called TANGO:H Designer, which allows the creation of physical and cognitive exercises in single and multiplayer, so that children can play sequentially or simultaneously both competitively and collaboratively. Similarly, the design of the platform was taken into account various criteria of playability and gamification to maximize the user experience with the game. This article presents the requirements that have been followed in the design of Tango-H, and the developed solution. © Springer International Publishing Switzerland 2013.

关键词： Serious games

来源：评论

学校读者我要写书评

暂无评论

Interaction and architectural space

Interaction and architectural space

引用

32nd Annual ACM Conference on Human Factors in Computing systems, CHI EA 2014

作者： Dalton, Nick Hölscher, Christoph Green, Keith Evan Mathew, Anijo Dalton, Ruth Schnädelbach, Holger Wiberg, Mikael Varoudis, Tasos Department of Computing Open University Milton Keyens United Kingdom Department of Humanities Social and Political Sciences ETH Zürich Zürich Switzerland Institute for Intelligent Materials Systems and Environments Clemson University Clemson SC United States Institute of Design Ilinois Institute of Technology Chicago IL United States Department of Architecture Northumbria University Newcastle United Kingdom School of Computer Science University of Nottingham Nottingham United Kingdom Department of Informatics Umeå University 901 87 Umeå Sweden Space Group University College London London United Kingdom

ISBN: (纸本)9781450324748

For many in the field of HCI, location and space are synonymous;yet, as we move from the mobile era to the ubiquitous era, computing becomes entangled with notions of space. This workshop critically examines the role of space in human-computer interfaces. The objective is to bring together diverse perspectives of space, drawing from architecture, philosophy, art, geography, design, dance, spatial-cognition, mathematics, computing, and still other domains, towards foregrounding space in theoretical discussions and explorations within the CHI community. Expected outcomes are the reporting of fresh insights into the impact and role of space in the interaction process.

关键词： Ubiquitous computing

来源：评论

学校读者我要写书评

暂无评论

Automatic complex instruction identification for efficient application mapping onto ASIPs

Automatic complex instruction identification for efficient a...

引用

IEEE Latin American Symposium on Circuits and systems (LASCAS)

作者： Alexandre S. Nery Nadia Nedjah Felipe M. G. França Lech Jozwiak Henk Corporaal Department of Electrical Engineering - Electronic Systems Eindhoven University of Technology The Netherlands Department of Electronics Engineering and Telecommunications Universidade do Estado do Rio de Janeiro Brazil LAM - Computer Architecture and Microelectronics Laboratory Universidade Federal do Rio de Janeiro Brazil

Instruction Set Customization is a well-known technique to enhance the performance and efficiency of Application-Specific Processors (ASIPs). An extensive application profiling can indicate which parts of a given application, or class of applications, are most frequently executed, enabling the implementation of such frequently executed parts in hardware as custom instructions. However, a naive ad hoc instruction set customization process may identify and select poor instruction extension candidates, which may not result in a significantly improved performance with low circuit-area and energy footprints. In this paper we propose and discuss an efficient instruction set customization method and automatic tool, which exploit the maximal common subgraphs (common operation patterns) of the most frequently executed basic blocks of a given application. The speed results from our tool for a VLIW ASIP are provided for a set of benchmark applications. The average execution time reduction ranges from 30% to 40%, with only a few custom instructions.

关键词： VLIW Hardware Ray tracing Program processors Registers Libraries Convolution

来源：评论

学校读者我要写书评

暂无评论

Wikipedia articles representation with matrix'u

Wikipedia articles representation with matrix'u

引用

9th International Conference on Distributed Computing and Internet technology, ICDCIT 2013

作者： Szymański, Julian Department of Computer Systems Architecture Faculty of Electronics Telecommunications and Informatics Gdańsk University of Technology Poland

ISBN: (纸本)9783642360701

In the article we evaluate different text representation methods used for a task of Wikipedia articles categorization. We present the Matrix'u application used for creating computational datasets of Wikipedia articles. The representations have been evaluated with SVM classifiers used for reconstruction human made categories. © 2013 Springer-Verlag Berlin Heidelberg.

关键词： Text processing

来源：评论

学校读者我要写书评

暂无评论

A framework for automatic custom instruction identification on multi-issue ASIPs

A framework for automatic custom instruction identification ...

引用

IEEE International Conference on Industrial Informatics (INDIN)

作者： Alexandre S. Nery Nadia Nedjah Felipe M. G. França Lech Jozwiak Henk Corporaal LAM - Computer Architecture and Microelectronics Laboratory COPPE Universidade Federal do Rio de Janeiro Brazil Department of Electrical Engineering - Electronic Systems Eindhoven University of Technology The Netherlands Universidade do Estado do Rio de Janeiro Rio de Janeiro RJ BR

Custom Instruction Identification is an important part in the design of efficient Application-Specific Processors (ASIPs). It consists of profiling of a given application to find patterns of basic operations that are frequently executed. Operations of such patterns can be implemented together as a single custom instruction to speedup the execution of the application. Because of the problem's high complexity, several methods have been proposed for specific single-issue (RISC) processors and architectures, limiting the shape and size of custom instructions that can actually be identified and, possibly, implemented. In this paper, we propose and discuss an efficient custom instruction set identification method and corresponding automatic tool for multi-issue VLIW ASIPs, which search for the common operation patterns of the most frequently executed basic blocks of a given application, with different sizes and shapes. The speedup results for the custom instructions identified by our tool are provided for a set of benchmark applications. The speedup is up to 68%, with only a few custom instructions used.

关键词： VLIW Program processors Libraries Registers Ray tracing Hardware Shape

来源：评论

学校读者我要写书评

暂无评论

Energy impact in the design space exploration of loop buffer schemes in embedded systems

Energy impact in the design space exploration of loop buffer...

引用

2013 IFIP/IEEE 21st International Conference on Very Large Scale Integration, VLSI-SoC 2013

作者： Artes, Antonio Ayala, Jose L. Fasthuber, Robert Raghavan, Praveen Catthoor, Francky Computer Architecture and Automation Department Complutense University of Madrid Madrid Spain Smart Systems and Energy Technology Unit IMEC Leuven Belgium

ISBN: (纸本)9781479905249

The reduction of the energy consumption in the domain of the embedded systems is becoming the most important design goal due to the increasing use of battery powered consumer devices. Previous research has pointed out the instruction memory organisation as one of the major sources of energy consumption of the embedded systems. Due to this fact, the introduction of any enhancement in this component of the system becomes crucial in order to decrease this energy bottleneck. The purpose of this paper is to present a highlevel energy analysis of the loop buffer schemes that exist in the embedded systems. The crucial energy analysis that is presented in this paper not only proposes a method to evaluate different loop buffer schemes for a certain application, but also guides embedded systems designers to make the correct decision in the trade-offs that exist between the energy budget, the required performance, and the area cost of the embedded system. Experimental results used in this analysis show that, the search of energy savings (up to 76%) has to take into account the performance penalty, the area cost, and the impact of the implementation technology in order to choose the most suitable enhancement that has to be introduced in the instruction memory organisation from the point of view of the energy consumption. © 2013 IEEE.

关键词： Embedded systems

来源：评论

学校读者我要写书评

暂无评论

High Statistics Measurements of Pedestrian Dynamics

引用

Transportation Research Procedia 2014年 2卷 96-104页

作者： Alessandro Corbetta Luca Bruno Adrian Muntean Federico Toschi CASA- Centre for Analysis Scientific computing and Applications Department of Mathematics and Computer Science Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands Department of Structural Geotechnical and Building Engineering Politecnico di Torino Corso Duca degli Abruzzi 24 10126 Torino Italy Department of Architecture and Design Politecnico di Torino Viale Mattioli 39 10125 Torino Italy ICMS - Institute for Complex Molecular Systems Eindhoven University of Technology The Netherlands Department of Applied Physics Eindhoven University of Technology 5600 MB Eindhoven The Netherlands CNR-IAC Via dei Taurini 19 00185 Rome Italy

Aiming at a quantitative understanding of basic aspects of pedestrian dynamics, extensive and high-accuracy measurements of real-life pedestrian trajectories have been performed. A measurement strategy based on Microsoft Kinect TM has been used. Specifically, more than 100.000 pedestrians have been tracked while walking along a trafficked corridor at the Eindhoven University of technology, The Netherlands. The obtained trajectories have been analyzed as ensemble data. The main result consists of a statistical descriptions of pedestrian characteristic kinematic quantities such as positions and fundamental diagrams, possibly conditioned to the local crowd flow (e.g. co-flow or counter-flow).

关键词： pedestrian dynamics pedestrian tracking high statistics measurements statistical mechanics

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：