computing

Quaternionic Computing

QuaternionicComputing

Jos´eM.Fernandez,WilliamA.Schneeberger

arXiv:quant-ph/0307017v2 5 Nov 2004February1,2008AbstractWeintroduceamodelofcomputationbasedonquaternions,whichisinspiredonthequantumcomputingmodel.Purestatesarevectorsofasuitablelinearspaceoverthequaternions.Otheraspectsofthetheoryarethesameasinquantumcomputing:super-positionandlinearityofthestatespace,unitarityofthetransformations,andprojectivemeasurements.However,onenotableexceptionisthefactthatquaternioniccircuitsdonothaveauniquelyde

Privacy is a severe problem facing mobile computing. The fundamental question arises: Who gets to know personal data stored on handhelds? Most of current handhelds (personal digital assistants, mobile phones, etc.) are equipped with wireless communication

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have investigated algorithms for integer factorization and computing discrete logarithms. We have implemented a quadratic sieve algorithm for integer factorization in Maple to replace Maple’s implementation of the Morrison-

Integer Factorization and Computing Discrete

Logarithms in Maple

Aaron Bradford?,Michael Monagan?,Colin Percival?anbradfo@sfu.ca,mmonagan@cecm.sfu.ca,cperciva@irmacs.sfu.ca

Department of Mathematics,Simon Fraser University,

Burnaby,B.C.,V5A1S6,Canada.

1Introduction

As part of our MITACS research project at Simo

REVIEWS Yaakov Benenson

Biomolecular computing systems: principles, progress and potential 生物分子计算体系:原理、进展和潜力

Abstract 摘要

The task of information processing, or computation, can be performed by natural and man-made ‘devices’. Man-made computers are made from silicon chips, whereas natural ‘computers’, such as the brain, use cells and molecules. Computation also occurs on a much smaller scale in regulatory and signalling pathways in individual cells and even within single biomolecules.

信息处理或计算,可以通过自然的和人造的“装置”实现。人造电脑由硅芯

云计算课程理论试题部分答案

1. ___执行文件系统命名空间操作（） B. Namenode

2. 关于基于Hadoop的MapReduce编程的环境配置，下面哪一步是不必要的（） C. 安装Eclipse

3.下列说法错误的是（）

A. MapReduce中maper conbiner reducer 缺一不可

4..下面那个选项正确配置了HBASE的分布式环境。 B. 在hbase-site.xml文件中设置hbase.cluster.distributed为true

5..hbase如何更新列值？ C. 表格中增加新版本的值

6..Hive是建立在__之上的一个数据仓库。 D. Hadoop

7..Hive提供了基于SQL并使得熟悉SQL的用户能够查询数据的__。 A. QL

8..对于最小粒度的任务，Hive查询的反应时间约为 ___。 D. 几分钟

9. 按粒度大小的顺序，Hive数据被组成为:数据库，表格,__和桶。 C. 分隔

10. INT整数型有多少个字节__。 C. 4 byte

11.下面哪一个关于内置操作符的描述是错误的__。

C. A REGRE

a r X i v :g r -q c /0505075v 2 28 J u n 2005Computing inspirals in Kerr in the adiabatic regime.I.The scalar case Steve Drasco ?,′Eanna ′E.Flanagan ??,Scott A.Hughes § ?Center for Radiophysics and Space Research,Cornell University,Ithaca,NY 14853?Laboratory for Elementary Particle Physics,Cornell University,Ithaca,NY 14853§Department of Physics,MIT,77Massachusetts Ave.,Cambridge,MA 02139 MIT Kavli Institute for Astrophysics and Space Research,MIT,77Massachusetts Ave.,Cambridge,MA 02139Abstract.A key source for LISA will

The np Package

January11,2008

Version0.14-2

Date2008-01-11

Depends boot

Suggests quantreg

Title Nonparametric kernel smoothing methods for mixed datatypes

Author Tristen Hay?eld,Jeffrey S.Racine Maintainer Jeffrey S.Racine

Description This package provides a variety of nonparametric(and semiparametric)kernel methods that seamlessly handle a mix of continuous,unordered,and ordered factor datatypes.We would like to gratefully acknowledge support from the Natural Sciences and Engineering Research

Council of Canada(NSERC:nserc.ca),the S

Individuals and organizations increasingly use sophisticated software systems from which they demand great reliance. “Reliance ” is contextually subjective and depends on the particular stakeholder’s needs; therefore, in different circumstances, the sta

High Dependability Computing Program

Modeling Dependability

The Unified Model of Dependability

Victor Basili

Paolo Donzelli

Sima Asgari

Computer Science Department

University of Maryland

College Park, Maryland 20742

Technical Report CS-TR-4601 - UMIACS-TR-2004-43

June 2004

Individuals a

Recent advances in technology have created a modern computational environment in which high performance commodity superclusters are interconnected by high bandwidth Internet connections, thus establishing a worldwide computational grid with large aggregate

DesignSecureofUtilityanEconomics-BasedComputingonSoftwareSupercomputingInfrastructureClusters

forGregoryA.KoenigandWilliamYurcik

NationalCenterforSupercomputingApplications(NCSA)

UniversityofIllinoisatUrbana-Champaign

{koenig,byurcik}@ncsa.uiuc.edu

Abstract

Recentadvancesintechn

For What?

“云计算在国内三大电信运营商迅速兴起， Oracle作为全球最大的企业软件提供者，也作为 云能力构建的核心使能者，希望能够与各位专 家共同探讨云计算在电信行业的应用。”

目录

1

什么是云计算 云计算特征/模式/主流平台 电信运营商的云应用探讨 三大运营商的云计算规划 Oracle云计算战略 Oracle云计算解决方案 运营商发展云计算的策略建议 云计算参考架构 1.1 云计算的起源 1.2 云计算市场展望 1.3 云计算的主流定义 1.4 云计算的发展推动力 1.5 云计算的优势与挑战

云计算的起源

“它起源于我们将互联网视为云的时候… 我们 不关心消息去往何处… 云为我们屏蔽了复杂性” - Kevin Marks, Google

“融合的云是对服务器，应用，数据，基础设 施的复杂性和异构平台的简化抽象” - Amazon’s CEO Jeff Bezos

云计算的理想

1879, The dynamo

1882, Central power station

Corporate DC

IDC

云计算的技术演进

云计算是并行计算 (Parallel Computing)、分布式 计算(Distributed Computing)和 网格计算(Gr