基于云计算的病毒多执行路径

针对目前对于病毒的行为分析工具只能在单机系统中分析一条程序执行的路径,误报率很高的问题,提出了一种行为分析模型。该模型利用云计算海量资源,将病毒多条执行路径的分析移植到云计算虚拟机结点上完成。对每条病毒的执行路径分别在不同的虚拟机结点上并行同时执行分析,通过对虚拟机结点中系统调用的监控找出病毒在某种特定的条件下触发的恶意行为。在开源云平台Eucalyptus的实验表明,该模型可以检测出病毒的条件触发行为,找出触发恶意行为的条件和可以满足这些条件的输入数据,并且性能比单机系统有了很大提升。     

云计算应用与服务探讨

云计算是一种商业计算模型。它将网络资源集中起来,以Iaas、Paas和Saas三种服务形式提供给用户。云计算具有资源配置动态化、需求服务自助化、网络访问便捷化、服务可计量化、资源虚拟化等特征。     

耗尽型脉冲神经P系统的矩阵表示及GPU实现

各类P系统并行计算的实现是膜计算的一个研究热点。针对耗尽型脉冲神经P系统,提出了其并行计算的矩阵表示,并以此为基础研究了耗尽型脉冲神经P系统的GPU实现。仿真实验分析了耗尽型脉冲神经P系统的并行计算在GPU上的加速性能,在10次实验中,GPU对CPU的平均加速比为1.4。     

普适环境下工程监理管理系统框架研究

本文依据普适计算的相关技术构建了建设工程监理管理信息系统（PESS）框架,可以不受空间与地域的限制对施工现场进行监控,监理企业和施工企业可以随时随地访问集成分布在各地的监理信息,实现对监理核心功能＂三控二管一协调＂的信息化的支持。     

A DEM‐based parallel computing hydrodynamic and transport model

The sudden and accidental water pollution response system (SAWPRS) for Yangtze River in central China required to develop a hydrodynamic and transport model, which is readily available and capable of simulating a large river system within GIS environment. This study facilitates such effort by developing a parallel computing method based on digital elevation model (DEM) using overlapping domain decomposition approach (ODDA) and message passing interface (MPI) protocol. The hydrodynamic and transport model was redesigned using finite volume method for hydrodynamic and transport model dispersion, the SIMPLEC method for solving the flow field, and the pressure weighted interpolating method for the flow field modification. This modelling approach was verified in two experiments using different sets of computer clusters. The model output was evaluated against the measured data collected for the year 1998 for Wanzhou, an upstream river segment of Yangtze River. The relative error was found to be less than 10%. The performance of parallel computation was found excellent as evident from the cost efficiency values greater than 0.81 in both experiments and increased computation speed while increasing the number of computer clusters. Overall, the parallel computing modelling system developed here was found to meet all requirements of SAWPRS. Copyright © 2010 John Wiley & Sons, Ltd.     

水利工程视频监控系统建设与技术支撑

结合国家防汛抗旱指挥系统二期工程视频监控系统初步设计,讨论水利工程视频监控系统建设的必要性,介绍水利工程视频监控系统的建设思路、基本结构及组成、系统主要特点,结合当前平台架构、云计算、物联网等IT领域最新技术的发展与应用,分析视频监控系统的发展方向和应用前景,为水利工程视频监控系统的建设提供技术参考.     

Issues in software ergonomics: user interface design and Chinese computing input methodology

This paper provides an overview of two ongoing research projects at the Institute of Systems Science (ISS). In the intelligent user interface project, the use of artificial intelligence in enhancing human-computer interaction is discussed. In the Chinese computing input methodology project, an input methodology derived from studies in cognitive psychology is discussed.     

Cloud computing adoption and usage in community colleges

Cloud computing is gaining popularity in higher education settings, but the costs and benefits of this tool have gone largely unexplored. The purpose of this study was to examine the factors that lead to technology adoption in a higher education setting. Specifically, we examined a range of predictors and outcomes relating to the acceptance of a cloud computing platform in rural and urban community colleges. Drawing from the Technology Acceptance Model 3 (TAM3) (Venkatesh, V. and Bala, H., 2008. Technology Acceptance Model 3 and a research agenda on interventions. Decision Sciences, 39 (2), 273–315), we build on the literature by examining both the actual usage and future intentions; further, we test the direct and indirect effects of a range of predictors on these outcomes. Approximately 750 community college students enrolled in basic computing skills courses participated in this study; findings demonstrated that background characteristics such as the student's ability to travel to campus had influenced the usefulness perceptions, while ease of use was largely determined by first-hand experiences with the platform, and instructor support. We offer recommendations for community college administrators and others who seek to incorporate cloud computing in higher education settings.     

国际云计算研究的知识图谱分析

文章以Web of Science数据库中云计算为主题的1027篇文献为数据源,借助可视化分析软件CiteSpaceII对相关被引文献数据和主题词等进行分析和处理,以知识图谱的方式,对国际云计算研究的国家分布情况、研究前沿、研究热点及跨学科属性进行分析,并探讨了云计算给高校带来的机遇和挑战。