共查询到20条相似文献,搜索用时 0 毫秒
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Kollias Dimitrios Tzirakis Panagiotis Nicolaou Mihalis A. Papaioannou Athanasios Zhao Guoying Schuller Björn Kotsia Irene Zafeiriou Stefanos 《International Journal of Computer Vision》2019,127(6-7):907-929
International Journal of Computer Vision - Automatic understanding of human affect using visual signals is of great importance in everyday human–machine interactions. Appraising human... 相似文献
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《Computer》1980,13(11):17-35
New adaptation properties for supersystem architectures will allow higher throughputs from the same hardware, lengthening system life cycles. 相似文献
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Syed Suhaib Deepak Mathaikutty Sandeep Shukla 《Electronic Notes in Theoretical Computer Science》2008,200(1):33
In Kahn process network (KPN), the processes (nodes) communicate by unbounded unidirectional FIFO channels (arcs), with the property of non-blocking writes and blocking reads on the channels. KPN provides a semantic model of computation, where a computation can be expressed as a set of asynchronously communicating processes. However, the unbounded FIFO based asynchrony is not realizable in practice and hence requires refinement in real hardware. In this work, we start with KPN as the model of computation for GALS, and discuss how different GALS architectures can be realized. We borrow some ideas from existing dataflow architectures for our GALS designs. 相似文献
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Architectures for Extreme-Scale Computing 总被引:1,自引:0,他引:1
Extreme-scale computers promise orders-of-magnitude improvement in performance over current high-end machines for the same machine power consumption and physical footprint. They also bring some important architectural challenges. 相似文献
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并行数据库系统的体系结构 总被引:1,自引:0,他引:1
一、引言 进入九十年代以来,越来越多的应用表明,传统的大型计算机系统缺乏支持高性能联机事务处理和复杂查询操作的能力。当今数据库规模的急剧澎胀、数据库工作负载的日益加重,以及新的应用领域的不断出现和成熟,已使传统的大型计算机达到了性能的极限。例如,美国国家专利局的信息数据库的信息量高达25太字节(1980年)[1],即使使用目前最快的大型机,按每秒处理100兆字节的处理速度,要把这个数据库全部检索一遍,也要花费100小时。设计支持海量数据和满足实时要求的高性能的数据库系,统已经成为数据库研究领域所面临的一项严峻挑战。 相似文献
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The increasing use of computer data communications over the past several years has spawned a variety of network architectures to support requirements for distributed processing. Developed by various R&D groups,1-3by the common carriers,4-4by minicomputer and mainframe manufacturers,7,8and by the vendors of traditional communications hardware,9,10these new architectures represent alternative means to similar ends. This article provides a framework for understanding existing and forthcoming systems, focusing particular attention on the impact of evolving requirements and technologies. 相似文献
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Mohammad Abdur Razzaque Simon Dobson Paddy Nixon 《Journal of Network and Systems Management》2007,15(1):13-27
Layered architectures are not flexible enough to cope with the dynamics of wireless dominated next generation communications.
Cross-layer architectures may provide a more flexible solution: breaks the traditional structure by allowing interactions
between two or more non-adjacent layers. This paper review the cross–layer approach to network architecture and compare the
different cross-layering architectures, observing that most current approaches depend purely on local information and provide
only poor and inaccurate information gathering at the global scale. This paper also explores the possible use of cross-layering
architectures in autonomic communications and the potential importance of new cross-layer architectures with a hybrid local
and global view for autonomic communications. 相似文献
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Architectures for vibration-driven micropower generators 总被引:7,自引:0,他引:7
Mitcheson P.D. Green T.C. Yeatman E.M. Holmes A.S. 《Journal of microelectromechanical systems》2004,13(3):429-440
Several forms of vibration-driven MEMS microgenerator are possible and are reported in the literature, with potential application areas including distributed sensing and ubiquitous computing. This paper sets out an analytical basis for their design and comparison, verified against full time-domain simulations. Most reported microgenerators are classified as either velocity-damped resonant generators (VDRGs) or Coulomb-damped resonant generators (CDRGs) and a unified analytical structure is provided for these generator types. Reported generators are shown to have operated at well below achievable power densities and design guides are given for optimising future devices. The paper also describes a new class-the Coulomb-force parametric generator (CFPG)-which does not operate in a resonant manner. For all three generators, expressions and graphs are provided showing the dependence of output power on key operating parameters. The optimization also considers physical generator constraints such as voltage limitation or maximum or minimum damping ratios. The sensitivity of each generator architecture to the source vibration frequency is analyzed and this shows that the CFPG can be better suited than the resonant generators to applications where the source frequency is likely to vary. It is demonstrated that mechanical resonance is particularly useful when the vibration source amplitude is small compared to the allowable mass-to-frame displacement. The CDRG and the VDRG generate the same power at resonance but give better performance below and above resonance respectively. Both resonant generator types are unable to operate when the allowable mass frame displacement is small compared to the vibration source amplitude, as is likely to be the case in some MEMS applications. The CFPG is, therefore, required for such applications. 相似文献
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To transform your IT architecture, consider implementing discrete plateaus to provide stability and manage change while you move gradually closer to your goal. 相似文献
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Jürgen Hesser Reinhard Manner Günter Knittel† Wolfgang Straßer† Hanspeter Pfister‡ Arie Kaufman‡ 《Computer Graphics Forum》1995,14(3):111-122
Volume rendering is a key technique in scientific visualization that lends itself to significant exploitable parallelism. The high computational demands of real-time volume rendering and continued technological advances in the area of VLSl give impetus to the development of special-purpose volume rendering architectures. This paper presents and characterizes three recently developed volume rendering engines which are based on the ray-casting method. A taxonomy of the algorithmic variants of ray-casting and details of each ray-casting architecture are discussed. The paper then compares the machinefeatures and provides an outlook onfuture developments in the area of volume rendering hardware. 相似文献
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Lei Zhang Mei Yang Yingtao Jiang Emma Regentova 《Computers & Electrical Engineering》2009,35(6):856-877
As indicated in the latest version of ITRS roadmap, optical wiring is a viable interconnect technology for future SoC/SiC/SiP designs that can provide broad band data transfer rates unmatchable by the existing metal/low-k dielectric interconnects. In this paper, we present an interconnection architecture, referred as the wavelength routed optical network (WRON), suitable to build on-chip optical micro-networks. The routing scheme for WRON, using any two of the three routing parameters (the source node address, the destination node address, and the routing wavelength), is generalized in this paper. With WRON as the primitive platform, we further propose a new recursive architecture, the recursive wavelength routed optical network (RCWRON), and it serves as the basis of a redundant architecture, the redundant wavelength routed optical network (RDWRON). The routing schemes for RCWRON and RDWRON are also detailed in this paper. 相似文献
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Nanotechnology may well prove to be the 21st century's new wave of scientific knowledge that transforms people's lives. Nanotechnology research activities are booming around the globe. This article reviews the recent progresses made on nanoelectronic research in US and China, and introduces several novel hybrid solutions specifically useful for future computer technology. These exciting new directions will lead to many future inventions, and have a huge impact to research communities and industries. 相似文献
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一种徽派建筑快速建模方法 总被引:2,自引:0,他引:2
为实现徽派古建筑群的快速自动建模,在深入分析徽派建筑结构特征的基础上,提出一种徽派建筑体快速建模方法.首先对徽派建筑的结构特征、典型建筑模块库以及各模块之间的约束规则库进行总结分析;然后将建筑体的各个模块参数化为图的拓扑节点,使用广度遍历算法对这些节点进行遍历,实现建筑体模型的自动构建.实验结果表明,该方法速度快、效率高. 相似文献