检索结果-内蒙古大学图书馆

Fmotar: A fast multi-objective thermal aware routing algorithm for three-dimensional network-on-chips 50

Fmotar: A fast multi-objective thermal aware routing algorit...

50th Summer computer Simulation Conference, SCSC 2018, Part of the 2018 Summer Simulation Multi-Conference, SummerSim 2018

作者： Majumdar, Amartya Dash, Ranjita K. Risco-Martín, José L. Turuk, Ashok K. Department of Computer Science and Engineering NIT Rourkela RourkelaOdisha India Department of Computer Architecture and Automatics Complutense University of Madrid Madrid Spain

ISBN: (纸本)9781510860209

Three-dimensional Network-on-Chip (3D NoC) is gaining popularity among designers due to its scalability, higher bandwidth, fault tolerance, and reliability. However, stacking of multiple dies leads to increase in power density and accumulation of heat flux, thereby causing severe thermal problems. Unequal traffic distribution across the chip and higher power density result in higher on-chip temperatures. This leads to performance degradation, increase in leakage power, and circuit failure. In this paper, we have proposed a thermal-aware adaptive routing algorithm called fast multi-objective thermal aware routing (FMoTAR) to optimize the thermal profile of 3D NoCs. The effectiveness of any adaptive routing algorithm is correlated to the selection strategy used for packet forwarding. In the proposed technique, routing function returns multiple admissible output channels. A selection function is used to select the output channel to which a packet will be forwarded. For faster convergence of finding minimal path from source to destination, a bidirectional search is carried out in FMoTAR. Analysis of the simulation results shows that on-chip traffic is more uniform in FMoTAR. This leads to reduction in the peak on-chip temperature. Moreover, the average propagation delay is lesser in FMoTAR in comparison to existing thermal-aware routing techniques. © 2018 Society for Modeling & Simulation International (SCS).

关键词： Network-on-chip

来源：评论

学校读者我要写书评

暂无评论

Erratum to: Several Articles in JETP Letters

引用

JETP Letters 2022年第8期116卷 589-591页

作者： Godunov, S. I. Karkaryan, E. K. Novikov, V. A. Rozanov, A. N. Vysotsky, M. I. Zhemchugov, E. V. Inogamov, N. A. Perov, E. A. Zhakhovsky, V. V. Shepelev, V. V. Petrov, Yu. V. Fortova, S. V. Tarasenko, S. V. Shavrov, V. G. Valeev, B. Yu. Toksumakov, A. N. Kvashnin, D. G. Chernozatonskii, L. A. Makarov, A. S. Kretova, M. A. Afonin, G. V. Qiao, J. C. Glezer, A. M. Kobelev, N. P. Khonik, V. A. Klumov, B. A. Magadeev, E. B. Vakhitov, R. M. Tamm Department of Theoretical Physics Lebedev Physical Institute Russian Academy of Sciences Moscow Russia Alikhanov Institute for Theoretical and Experimental Physics National Research Center Kurchatov Institute Moscow Russia Centre de Physique des Particules de Marseille CPPM Aix-Marseille Universite CNRS/IN2P3 Marseille France Landau Institute for Theoretical Physics Russian Academy of Sciences Chernogolovka Russia Joint Institute for High Temperatures Russian Academy of Sciences Moscow Russia All-Russia Research Institute of Automatics Moscow Russia Institute for Computer Aided Design Russian Academy of Sciences Moscow Russia Moscow Institute of Physics and Technology (National Research University) Dolgoprudnyi Russia Dоnetsk Institute for Physics and Engineering Donetsk Ukraine Kotelnikov Institute of Radio Engineering and Electronics Russian Academy of Sciences Moscow Russia Emanuel Institute of Biochemical Physics Russian Academy of Sciences Moscow Russia Scientific School on Chemistry and Technology of Polymer Materials Plekhanov Russian University of Economics Moscow Russia Voronezh State Pedagogical University Voronezh Russia School of Mechanics Civil Engineering and Architecture Northwestern Polytechnical University Xi’an People’s Republic of China National University of Science and Technology MISiS Moscow Russia Institute of Solid State Physics Russian Academy of Sciences Chernogolovka Russia Bashkir State University Ufa Russia

An Erratum to this paper has been published: https://***/10.1134/S0021364022340021

关键词：

来源：评论

学校读者我要写书评

暂无评论

Dimensionality reduction of hyperspectral images using reconfigurable hardware

Dimensionality reduction of hyperspectral images using recon...

引用

International Conference on Field Programmable Logic and Applications

作者： Daniel Fenzández Carlos González Daniel Mozos Department of Computer Architecture and Automatics Complutense University of Madrid Madrid Spain

Remotely sensed hyperspectral imaging is a very active research area, with numerous contributions in the recent scientific literature. To carry out these investigations, it is necessary to collect large amounts of information that will be processed on satellite or airborne platforms using parallel processing techniques on multi core systems or Graphics Processing Units, trying to avoid excessive energy consumption. Due to the high dimensionality of the data, algorithms analyzing hyperspectral images have a high computational cost. This cost is a significant disadvantage in applications that require real-time response, such as fire tracing, prevention and monitoring of natural disasters, chemical spills and other environmental pollution, etc. To solve these problems, one of the solutions most used is the dimensional reduction, which removes noise and redundant information of images. Therefore, it is possible to reduce significantly the size of the images, and improve the complexity of the algorithms and data storage. Moreover, Field-Programmable Gate Arrays are specially recommended in remotely sensed applications that require real-time response due to their features such as reconfiguration, low consumption, compact size and high computing power on board. In this work, we propose the implementation in reconfigurable hardware of the principal component analysis (PCA) algorithm to carry out the dimensional reduction of hyperspectral images. Experimental results demonstrate that our hardware version of the PCA algorithm exhibits real-time performance.

关键词： Principal component analysis Hyperspectral imaging Field programmable gate arrays Covariance matrices Hardware Real-time systems

来源：评论

学校读者我要写书评

暂无评论

FPGA implementation to estimate the number of endmembers in hyperspectral images

FPGA implementation to estimate the number of endmembers in ...

引用

International Conference on Field Programmable Logic and Applications

作者： Carlos González Daniel Mozos Sebastian Lopez Roberto Sarmiento Department of Computer Architecture and Automatics Complutense University of Madrid Madrid Spain Institute for Applied Microelectronics (IUMA) University of Las Palmas de Gran Canaria Spain

Spectral unmixing is an important task for remotely sensed hyperspectral data exploitation. It amounts the identification of pure spectral signatures (endmembers) in the data, and the estimation of the abundance of each endmember in each (possibly mixed) pixel. A challenging problem in spectral unmixing is how to determine the number of endmembers in a given scene. For this purpose, many algorithms have been proposed in the recent literature, being the estimation of the Virtual Dimensionality (VD) of the hyperspectral image and the hyperspectral signal subspace estimator (HySime) two of the most popular choices. Unfortunately, the high dimensionality of the hyperspectral data provided by modern sensors as well as the inherent computational complexity clearly make the use of these algorithms prohibitive for applications under real-time or near real-time constraints. Hence, the utilization of high performance computing platforms in order to accelerate the process of unmixing a hyperspectral image becomes mandatory for such scenarios. Reconfigurable hardware solutions such as field programmable gate arrays (FPGAs) have consolidated during the last years as one of the preferred choices for the fast processing of hyperspectral remotely sensed images due to their advantages over other high performance computing systems, such as clusters of computers, multicore processors and/or graphical processing units (GPUs). This paper uncovers two FPGA-based architectures for accelerating the process of estimating the number of endmembers that constitute a hyperspectral image according to the VD and the HySime algorithms. The proposed methods have been implemented on a Virtex-7 XC7VX690T FPGA and tested using real hyperspectral data collected by NASAs Airborne Visible Infra-Red Imaging Spectrometer (AVIRIS) over the Cuprite mining district in Nevada and the World Trade Center in New York. Experimental results demonstrate that the VD implementation exhibits real-time performance while

关键词： Hyperspectral imaging Estimation Noise Covariance matrices Correlation Field programmable gate arrays

来源：评论

学校读者我要写书评

暂无评论

Improved perturbation bounds for the continuous-time H∞-control problem

Improved perturbation bounds for the continuous-time H∞-con...

引用

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

Modeling the stability of a computer system

Modeling the stability of a computer system

引用

作者： Lopez, Victoria Miñana, Guadalupe Department of Computer Architecture and Automatics Complutense University Madrid Spain

Performance, reliability and safety are relevant factors when analyzing or designing a computer system. Many studies about on performance are based on monitoring and analyzing data from a computer system. One of the most useful pieces of data is the Load Average (LA) that which shows the load average of the system in the last minute, the sequence of in the last five minutes and the sequence of in the last fifteen last minutes. There are a lot ofmany studies of the system performance based on the load average. This is shown by mean means of monitoring the commands of the operative system, but sometimes they are sometimes difficult to understand and far of removed from human intuition. The aim of this paper is to show demonstrate a new procedure that allows us to determine the stability of a computer system from a list of load average sample data. The idea is shown as an algorithm based in statistic analysis, the aggregation of information and its formal specification. The result is an evaluation of the stability of the load and the computer system by monitoring but without adding any overhead to the system. In addition, the procedure can be used as a software monitor for risk prevention of on any vulnerable system. © 2012 World Scientific Publishing Company.

关键词： Decision making

来源：评论

学校读者我要写书评

暂无评论

Robot formation control based on a multi-potential approach

Robot formation control based on a multi-potential approach

引用

作者： Cifuentes, Santiago Giron-Sierra, Jose M. Jimenez, Juan F. Department of Computer Architecture and Automatics Madrid Complutense University Madrid Spain

ISBN: (纸本)9781424474530

This paper proposes a new mobile robot formation control based on a multi-potential approach. The proposed method provides a pure reactive local mechanism that allows multiple robots to fit into formation pattern. Robots can deal with partially unknown scenarios and different formation patterns. The work is aimed to non-holonomic vehicles, constrains in speed and turn radius are considered. ©ICROS.

关键词： Mobile robots

来源：评论

学校读者我要写书评

暂无评论

Robot formation control based on a multi-potential approach

Robot formation control based on a multi-potential approach

引用

International Conference on Control, Automation and Systems ( ICCAS)

作者： Santiago Cifuentes Jose M. Giron-Sierra Juan F. Jimenez Department of Computer Architecture and Automatics Madrid Complutense University Madrid Spain

关键词： Collision avoidance Equations Mobile robots Navigation Vehicles Turning

来源：评论

学校读者我要写书评

暂无评论

A biologically inspired architecture for control of grasping movements of an anthropomorphic gripper

A biologically inspired architecture for control of grasping...

引用

10th International Conference on Climbing and Walking Robots, CLAWAR 2007

作者： Varona Moya, S. Molina Vilaplana, J. Linares Barranco, A. Feliú Battle, J. López Coronado, J. Department of Systems Engineering and Automatics Polytechnic University of Cartagena Campus Muralla Del Mar C/Dr. Fleming S/N 30202 Cartagena Murcia Spain Department of Computer Technology and Architecture University of Sevilla Avda. Reina Mercedes S/N 41012 Sevilla Spain

ISBN: (纸本)9812708154

In this paper we introduce a research plan for the development of an architecture for control of grasping movements in a manipulation system. It consists in an anthropomorphic robotic gripper with tactile and propioceptive sensing capability plus a stereoscopic visual guidance system, electronic control boards designed for implementing a powerful and neurologically inspired inter-chip communication technique called AER and a HYPBF neural networks model that will emulate the performance of the most important brain areas involved in motor behaviour control for efficient object manipulation. © 2007 World Scientific Publishing Co. Pte. Ltd.

关键词： Stereo image processing

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：