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云计算是当前信息产业的热点领域,具有广阔的应用前景。从定义、特征和模型3个方面,介绍了云计算的基本概念,对云计算的虚拟化、资源管理、安全性、分布式编程、数据存储等核心技术和云计算标准进行综述,并对分析主流的云计算技术应用及发展趋势进行分析。 相似文献
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Within the past two years, a new technical hobby has come into existence: computers. It appears that there may be in excess of 20,000 computers in not-for-profit use in homes and garages today–purchased, presumably, from the family's entertainment budget. 相似文献
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美国2001‘计算教程综述 总被引:2,自引:0,他引:2
1.Computing’91教程回顾 1991年,美国计算学科主要的专业学会ACM和IEEE-CS联合颁布了Computing’91教程。该教程力图覆盖计算学科的计算机科学、计算机工程、计算机科学与工程的各类本科生专业。Computing’91教程的提出对国内外计算机教育界产生了较大影响,该教程的系统性、完整性、合理性和灵活性均受到普遍的称赞。中国计算机学会教育委员会和全国高等学校计算机教育研究会也联合制定了类似的教程:“计算机学科教学计划1993”。Computing’91教程第一次对计算学科给出了透彻的定义:计算学科系统地研究信息描述和变换的算法,研究算法的理论、分析、设计、效率、实现和应用。一切计算的基本问题是“什么能被有效地自动化?”计算学科具有科学与技术的双重性。显然“计算”是广义的,并用这个术语来统一地指称现行的各类计算机专业。该定义是科学的、动态的,反映了学科的共性及 相似文献
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云计算是基于互联网的一种新型的服务架构,本文对于云计算的定义、技术发展、分类进行了描述,分析了现有云计算发展中存在的问题,最后针对云计算的发展进行了展望。 相似文献
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Jason Cong 《计算机科学技术学报》2011,26(4):632-635
In this short article, we would like to introduce the Center for Domain-Specific Computing (CDSC) established in 2009, primarily funded by the US National Science Foundation with an award from the 2009 Expeditions in Computing Program. In this project we look beyond parallelization and focus on customization as the next disruptive technology to bring orders-of-magnitude power-performance efficiency improvement for applications in a specific domain. 相似文献
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Pascal–even with its flaws–offers significant advantages over simplistic languages such as Fortran or Basic, without requiring the enormous resources of PL/I or Algol 68. 相似文献
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Transactional Memory: An Overview 总被引:3,自引:0,他引:3
Harris T. Cristal A. Unsal O.S. Ayguade E. Gagliardi F. Smith B. Valero M. 《Micro, IEEE》2007,27(3):8-29
Writing applications that benefit from the massive computational power of future multicore chip multiprocessors will not be an easy task for mainstream programmers accustomed to sequential algorithms rather than parallel ones. This article presents a survey of transactional memory, a mechanism that promises to enable scalable performance while freeing programmers from some of the burden of modifying their parallel code. 相似文献
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周红梅 《数字社区&智能家居》2010,(9)
为了解决传统智能方法无法突破的问题,推进机器智能化的进程,计算智能应运而生。计算智能的兴起引起了机器智能领域广泛的关注。该文系统阐述了几种主要计算智能算法的发展历程,分析了算法的基本原理,并对算法的特点和实际应用做了简单介绍,最后展望了计算智能将来的发展方向。 相似文献
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There are three main approaches to the representationof temporal information in AI literature: theso-called method of temporal arguments thatsimply extends functions and predicates of first-orderlanguage to include time as the additional argument;modal temporal logics which are extensions ofthe propositional or predicate calculus with modaltemporal operators; and reified temporal logicswhich reify standard propositions of some initiallanguage (e.g., the classical first-order or modallogic) as objects denoting propositional terms. Theobjective of this paper is to provide an overview onthe temporal reified approach by looking closely atsome representative existing systems featuring reifiedpropositions, including those of Allen, McDermott,Shoham, Reichgelt, Galton, and Ma and Knight. We shalldemonstrate that, although reified logics might bemore complicated in expressing assertions about somegiven objects with respect to different times, theyaccord a special status to time and therefore haveseveral distinct advantages in talking about someimportant issues which would be difficult (if notimpossible) to express in other approaches. 相似文献
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Yadav Satya Prakash Agrawal Krishna Kant Bhati Bhoopesh Singh Al-Turjman Fadi Mostarda Leonardo 《Computational Economics》2022,59(4):1659-1675
Computational Economics - Governments and industry leaders have already carried out programs to fully evaluate the strengths of blockchain and how it needs to be incorporated into everyday... 相似文献
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《IEEE transactions on pattern analysis and machine intelligence》1985,(10):1081-1091
We survey a new way to get quick estimates of the values of simple statistks (like count, mean, standard deviation, maximum, median, and mode frequency) on a large data set. This approach is a comprehensive attempt (apparently the first) to estimate statistics without any sampling. Our "antisampling" techniques have analogies to those of sampling, and exhibit similar estimation accuracy, but can be done much faster than sampling with large computer databases. Antisampling exploits computer science ideas from database theory and expert systems, building an auxiliary structure called a "database abstract." We make detailed comparisons to several different kinds of sampling. 相似文献