空间云计算

在21世纪数据、计算、并发访问以及时空都密集的情况下,地理信息科学面临着大量信息技术的挑战。这些挑战要求计算基础设施做好充足的准备。云计算提供了灵活的、按需计算的平台来整合观测系统、参数提取算法、现象模拟、分析可视化和决策支持,同时它的社会影响和用户反馈正是地理信息科学的必备要素。通过给出我们关于云计算如何支持地理信息科学,以及时空原理这个地理信息科学的核心如何利用云计算所带来的好处这两个方面的调查,我们讨论了云计算在地理信息科学上的应用。     

Challenges in real-time virtualization and predictable cloud computing

Cloud computing and virtualization technology have revolutionized general-purpose computing applications in the past decade. The cloud paradigm offers advantages through reduction of operation costs, server consolidation, flexible system configuration and elastic resource provisioning. However, despite the success of cloud computing for general-purpose computing, existing cloud computing and virtualization technology face tremendous challenges in supporting emerging soft real-time applications such as online video streaming, cloud-based gaming, and telecommunication management. These applications demand real-time performance in open, shared and virtualized computing environments. This paper identifies the technical challenges in supporting real-time applications in the cloud, surveys recent advancement in real-time virtualization and cloud computing technology, and offers research directions to enable cloud-based real-time applications in the future.     

云计算在中小企业中的应用价值研究

本文系统介绍云计算的概念和特征,分析云计算层次架构与服务模式,剖析云计算为中小企业发展带来的机遇和挑战,得出中小企业应用云计算技术可行的结论,提出了中小企业云计算实施方案。     

基于云计算的网络技术研究

随着科学技术与网络信息技术在近几年的迅速发展,云计算技术开始出现在大众眼中,其灵活性以及便捷性 使得云计算的相关产业得到了快速的发展。本文从云计算的概念入手,分析基于云计算的网络技术的实现及其发展所面临的 挑战,以更好地推动云计算技术的发展。     

云计算与网络信息安全研究

网络信息安全一直是IT行业的一个热门话题和研究热点。云计算是一个新兴技术,给网络信息安全提供机遇的同时,也带来了很多挑战。本文介绍了云计算的基本概念和实现机制,并在此基础上分析了云计算与网络信息安全的关系。最后,针对云计算面临的网络信息安全的挑战,给出了几点建设性的提议并对云计算进行了展望。     

A survey on security challenges in cloud computing: issues,threats, and solutions

Cloud computing has gained huge attention over the past decades because of continuously increasing demands. There are several advantages to organizations moving toward cloud-based data storage solutions. These include simplified IT infrastructure and management, remote access from effectively anywhere in the world with a stable Internet connection and the cost efficiencies that cloud computing can bring. The associated security and privacy challenges in cloud require further exploration. Researchers from academia, industry, and standards organizations have provided potential solutions to these challenges in the previously published studies. The narrative review presented in this survey provides cloud security issues and requirements, identified threats, and known vulnerabilities. In fact, this work aims to analyze the different components of cloud computing as well as present security and privacy problems that these systems face. Moreover, this work presents new classification of recent security solutions that exist in this area. Additionally, this survey introduced various types of security threats which are threatening cloud computing services and also discussed open issues and propose future directions. This paper will focus and explore a detailed knowledge about the security challenges that are faced by cloud entities such as cloud service provider, the data owner, and cloud user.

     

A multi-objective Monarch Butterfly Algorithm for virtual machine placement in cloud computing

Neural Computing and Applications - The growing demand for cloud computing adoption presents more challenges for researchers to make cloud computing more efficient and affordable for infrastructure...     

浅谈云计算在客户关系管理中的应用

近年来,云计算作为一种迅速发展的信息技术已应用在国内外诸多领域,对于客户关系管理而言,云计算的诞生对于客户关系管理带来了机遇和挑战。在介绍云计算基本原理及发展概述的基础上,探讨云计算技术对电信行业客户关系管理的影响,以及云计算技术应用于客户关系管理时需要重点关注的问题。     

基于云计算的高校信息化建设

介绍目前高校信息化建设存在的问题,引入了云计算,讲解了云计算的概念及其架构层次,重点介绍云计算在高校信息化建设中的应用,分析了云计算面临的机遇和挑战。     

基于云计算与SOA的企业集成架构及实现

通过对云计算的部署模式及逻辑结构的探讨,分析其面临的集成挑战;并将SOA这一基于服务的架构融入云计算,作为建立云计算集成架构的一个解决途径：最后通过一个企业案例来具体分析和说明企业如何综合运用这两者来构建企业系统集成架构。     

基于OAuth的开放授权技术及在云计算中的应用

在云计算中,传统应用系统中使用的基于单一安全域的身份认证和资源授权模式已无法适应复杂环境中的管理要求,需要制定跨域访问的安全控制策略.在重点分析了云计算中数据安全和隐私保护所遇到的挑战的基础上,有针对性地介绍了OAuth2.0协议的原理和功能特点,提出了开放授权技术在云计算中的应用优势,并通过一个工程应用实例讨论了具体的实现方法和思路.     

云计算的发展与应用

采用文献分析的方法简述了云计算的定义、特点和工作原理;介绍了实现云计算的相关核心技术的研究现状,包括虚拟化技术、海量数据分布式存储技术、海量数据管理技术、编程模型;对已有的几个较有代表性的云计算系统进行了介绍并指出了当前云计算系统面临的挑战,以期为下一步的研究指明方向。     

云计算安全防范技术

云计算是当前信息技术领域的热门话题之一,越来越多的用户将存储和计算付诸云端。但是,随之而来的安全问题却成为了制约其发展的瓶颈。在分析云计算安全问题的基础上,利用各种技术手段,给出了云计算的安全防范策略。     

云计算环境下的取证问题研究

云计算是一种基于互联网的超级计算模式,它的快速发展给取证带来了一定的挑战。在云计算环境下,取证活动包括证据发现、证据固定及证据提取3个阶段。但云计算自身存在的安全风险,导致云计算环境下的取证活动亦面临一定的技术及法律问题。对于取证信息及手段方面的问题,可以采取数据迁移技术及入侵检测系统等手段加以解决。对于相关的法律问题,则可以采取完善相关法律法规、强化国际区际合作等途径加以解决。     

State-of-the-art research study for green cloud computing

Although cloud computing has rapidly emerged as a widely accepted computing paradigm, the research on cloud computing is still at an early stage. Cloud computing suffers from different challenging issues related to security, software frameworks, quality of service, standardization, and power consumption. Efficient energy management is one of the most challenging research issues. The core services in cloud computing system are the SaaS (Software as a Service), PaaS (Platform as a Service), and IaaS (Infrastructure as a Service). In this paper, we study state-of-the-art techniques and research related to power saving in the IaaS of a cloud computing system, which consumes a huge part of total energy in a cloud computing system. At the end, some feasible solutions for building green cloud computing are proposed. Our aim is to provide a better understanding of the design challenges of energy management in the IaaS of a cloud computing system.     

Recent Advances in Mobile Grid and Cloud Computing

Grid and cloud computing systems have been extensively used to solve large and complex problems in science and engineering fields. These systems include powerful computing resources that are connected through high-speed networks. Due to the recent advances in mobile computing and networking technologies, it has become feasible to integrate various mobile devices, such as robots, aerial vehicles, sensors, and smart phones, with grid and cloud computing systems. This integration enables the design and development of the next generation of applications by sharing of resources in mobile environments and introduces several challenges due to a dynamic and unpredictable network. This paper discusses applications, research challenges involved in the design and development of mobile grid and cloud computing systems, and recent advances in the field.     

构建云计算平台的开源软件综述

云计算开源软件的涌现为云计算平台的构建提供了便利,同时也为人们从中选择合适的软件带来了挑战。 为明确如何构建云计算平台,研究现有用于构建云计算平台的开源软件十分必要。考察构建云计算平台的开源软件 的发展状况,从提供服务的角度对各种服务模型的开源软件体系结构进行剖析,通过对比分析当前典型的用于构建云 计算平台的开源软件,来为云计算平台建设者利用此类软件构建符合特定需求的云计算环境提供有效的途径。     

Virtualization layer security challenges and intrusion detection/prevention systems in cloud computing: a comprehensive review

Virtualization plays a vital role in the construction of cloud computing. However, various vulnerabilities are existing in current virtualization implementations, and thus there are various security challenges at virtualization layer. In this paper, we investigate different vulnerabilities and attacks at virtualization layer of cloud computing. We examine the proposals of cloud intrusion detection system (IDS) and intrusion detection and prevention system frameworks. We recommend the cloud IDS requirements and research scope to achieve desired level of security at virtualization layer of cloud computing.     

云测试研究现状综述

用文献分析方法剖析了云计算的体系结构,介绍了不同的云计算服务,论述了云计算软件的特点,给出了云测试的定义和应用场景。由此,比较了云测试的优势和挑战,并从云测试的服务类型、类别、内容等角度进行了综述,分析相互之间的对应关系,概括围绕云测试所展开的相关研究工作,展望了未来的研究方向和亟待解决的关键问题,为云测试相关研究提供了参考。     

云计算弹性测试研究

弹性作为云计算的关键特征,能够支持资源的快速扩展、灵活配置、动态增加和释放,使得资源充分利用,同时降低云服务提供商和用户的成本。为了检测弹性是否满足用户的服务等级协议和资源的合理配置,需要对其进行评估和测试。在分析弹性定义、实现方法和评测指标的基础上,提出弹性测试的概念,总结了目前弹性测试的相关研究,分析了弹性测试的关键技术和架构,指出弹性测试面临的挑战和问题,并给出了弹性测试的进一步研究方向。