Integration of hybrid wireless networks in cloud services oriented enterprise information systems

This article presents a hybrid wireless network integration scheme in cloud services-based enterprise information systems (EISs). With the emerging hybrid wireless networks and cloud computing technologies, it is necessary to develop a scheme that can seamlessly integrate these new technologies into existing EISs. By combining the hybrid wireless networks and computing in EIS, a new framework is proposed, which includes frontend layer, middle layer and backend layers connected to IP EISs. Based on a collaborative architecture, cloud services management framework and process diagram are presented. As a key feature, the proposed approach integrates access control functionalities within the hybrid framework that provide users with filtered views on available cloud services based on cloud service access requirements and user security credentials. In future work, we will implement the proposed framework over SwanMesh platform by integrating the UPnP standard into an enterprise information system.     

智能电网中的云计算机应用及安全研究

文章首先讨论了智能电网中基于云计算的病毒防护和数据灾备两种云计算应用模式,然后介绍了智能电网面临的信息安全风险及其特征,最后阐述了智能电网中云计算的安全风险和相应的解决措施。     

云环境下采购模式及风险评估研究

提高采购效率对企业发展至关重要。云环境下采购凭借其多样性、随机性、海量性等特点能够最大限度地满足用户需求,但是也存在着一定的风险。文中首先根据云环境的特征建立云环境下的采购模式,然后构建了云环境下采购风险评价指标体系及评价模型,运用网络分析法（ANP）在各指标间构造两两判断矩阵,在此基础上应用Super Decisions软件进行风险评价,最终得到云环境下采购风险指标权重排序。这一研究为云环境下采购风险的评估提供了方法和手段。     

云端数据管理系统的设计

互联网的快速发展使每日产生的庞大数据的存储和冗余备份,成为技术领域亟待解决的问题,低成本高效运行的数据存储管理系统成为研究的主流,本文的研究目标是基于云计算技术的云端数据管理系统,实现从普通用户到企业用户的云端数据存储、数据检索和相应的管理服务,同时支持系统的快速可扩展以及数据备份和安全恢复。     

基于云计算的B2C电子商务企业价值链优化

云计算通过互联网为用户提供动态可扩展的、虚拟的、按需付费的计算资源。云计算的应用能够降低数据计算、数据处理服务的使用成本,计算资源的使用方式更加灵活和便捷。这将促使更多的企业进入电子商务领域、更多的用户进行网上交易,进而推动企业和消费者间即B2C电子商务的大规模发展。本文研究云计算对电子商务发展环境的影响,基于价值链理论探讨B2C电子商务企业如何在云计算环境下获得持续发展和提高竞争力。     

基于云计算的虚拟桌面的架构方案探析

虚拟桌面是典型的云计算应用,它能够在云中为用户提供远程的计算机桌面服务。服务提供者在数据中心服务器上运行用户所需的操作系统和应用软件,然后采用桌面显示协议将操作系统桌面视图以图像的方式传送到用户端设备上。同时,服务器将对用户端的输入进行处理,并随时更新桌面视图的内容。通过分析某企业虚拟桌面的需求,探讨基于云计算概念设计虚拟桌面的架构方案。     

Discovering latent commercial networks from online financial news articles

Unlike most online social networks where explicit links among individual users are defined, the relations among commercial entities (e.g. firms) may not be explicitly declared in commercial Web sites. One main contribution of this article is the development of a novel computational model for the discovery of the latent relations among commercial entities from online financial news. More specifically, a CRF model which can exploit both structural and contextual features is applied to commercial entity recognition. In addition, a point-wise mutual information (PMI)-based unsupervised learning method is developed for commercial relation identification. To evaluate the effectiveness of the proposed computational methods, a prototype system called CoNet has been developed. Based on the financial news articles crawled from Google finance, the CoNet system achieves average F-scores of 0.681 and 0.754 in commercial entity recognition and commercial relation identification, respectively. Our experimental results confirm that the proposed shallow natural language processing methods are effective for the discovery of latent commercial networks from online financial news.     

Google Maps API在物流运输管理系统的应用

Google Maps API是Google推出编程API,Google Maps JavaScript API允许使用者把Google地图嵌入到自己的网页内,利用API所提供的函数导入所需电子地图,完成地图中点、线、标记、交通线等对象的设置。文中着重从叠加层的设计、控件的设计、电子地图的显示设置以及与运输管理系统中的数据关联等方面进行了阐述。     

Scheduling multimedia services in cloud computing environment

Currently, security is a critical factor for multimedia services running in the cloud computing environment. As an effective mechanism, trust can improve security level and mitigate attacks within cloud computing environments. Unfortunately, existing scheduling strategy for multimedia service in the cloud computing environment do not integrate trust mechanism when making scheduling decisions. In this paper, we propose a scheduling scheme for multimedia services in multi clouds. At first, a novel scheduling architecture is presented. Then, We build a trust model including both subjective trust and objective trust to evaluate the trust degree of multimedia service providers. By employing Bayesian theory, the subjective trust degree between multimedia service providers and users is obtained. According to the attributes of QoS, the objective trust degree of multimedia service providers is calculated. Finally, a scheduling algorithm integrating trust of entities is proposed by considering the deadline, cost and trust requirements of multimedia services. The scheduling algorithm heuristically hunts for reasonable resource allocations and satisfies the requirement of trust and meets deadlines for the multimedia services. Detailed simulated experiments demonstrate the effectiveness and feasibility of the proposed trust scheduling scheme.     

云计算及其在GIS中的发展

云计算是近几年来在计算机领域十分热门的一个词汇,随着技术的发展和市场的扩张,GIS开始与其他IT应用深度融合,并且逐渐进入IT应用的主流。在云计算的时代,GIS也面临着新的机会与变革。本文从云计算的概念和体系结构出发,论述了云计算的理论和关键技术。重点从GIS角度总结了目前云计算在国内外地理信息行业的应用情况。     

基于云计算的社区教育系统研究

通过介绍云计算概念、模型,分析了基于云计算的社区教育系统体系结构以及社区教育云计算方法,并提出了社区教育云的实现。旨在把握云计算的实质内涵和发展趋势,以及在社区教育信息化建设中能够把握基于云计算的教育系统未来发展。     

云计算环境下的审计业务模式变革研究

云计算环境下的审计业务模式是未来审计信息化发展的必然趋势。在归纳了IT环境下审计业务模式演变并从IT和审计两个角度诠释“云审计”及其国内外研究应用现状的基础上,以审计业务流程为主线,从云服务与审计结合的技术场景、云计算环境下的审计业务流程实现步骤以及云计算应用所引起的审计业务风险变化三个方面出发,分析云计算环境下的审计业务模式变革,为掌握云计算应用所带来的审计业务流程变革、迎接云审计时代的到来提供理论基础。     

云计算技术在电子数据调查与取证中的应用研究

随着云计算技术的发展,其已经在许多领域得到广泛的应用。通过云计算技术可以解决传统计算机取证所存在的存储量不足、分析不及时等一些缺陷,因为云计算技术具有高效计算、虚拟化运行等特点,基于这些特点可以扩大证据的储存、提高设备的利用率以及缩短取证时间等等。文章介绍了云计算的特点及电子数据取证的内涵,分析了云计算对电子数据取证的意义,并进一步对云计算在电子数据取证中的应用进行了分析与研究。     

云计算在广电行业中的应用初探

"云计算"作为一个新兴名词,在信息技术迅猛发展的今天,正在以迅雷不及掩耳之势进入人们的视野,云计算也必将在广播电视行业得到广泛的应用,本文从云计算的起源谈起,通过对云计算核心技术的优势,来分析未来云计算在广电行业中的应用和发展。     

云计算与信息安全

信息安全是当前计算机科学的一个研究热点;云计算是一个新的技术,给信息安全提供了挑战和机遇。介绍了云计算的基本概念、云计算的安全问题,通过云计算用户以及云计算服务提供商两方面分析了云计算中确保信息安全的方法。     

基于云计算的煤炭企业信息化体系研究

本文首先介绍云计算的基本原理,分析了煤炭企业信息化现状。从需求、设计、规划、存储几方面分析,建立基于云计算的煤炭企业信息化体系构建,最后将云计算信息化体系和传统信息化体系进行对比。     

面向云的视频会议系统设计与实现

随着人们生活水平的提高,人们对视频会议的要求也越来越高,无论是清晰度还是实时性都有较多要求。与视频会议相关的技术有很多,例如云计算,NGImeetings Cluster框架结构等,云计算在视频系统当中具有很大的作用,可以对系统进行测试,NGImeetings Cluster系统结合云计算的优势可以使NGImeetings Cluster服务框架更加灵活,大大提高系统的服务性能。     

Establishing the use of cloud computing in supply chain management

Despite having various benefits associated with greater information flow in the supply chain, empirical cloud computing research is scarce in the supply chain management domain. This paper explores the managerial perceptions on the use of cloud computing in supply chain management. Specifically, this paper seeks to address: how cloud computing impacts information sharing among supply chain partners, the impact of trust in cloud information sharing and the impact of cloud computing on supply chain performance. Using a multi-method research design we present a combined semi-structured interviews of four different companies in the United States and a survey to analyze and empirically assess our results. Structural equation modeling was used to analyze the results of this study. Our analysis provides empirical support based on managerial perceptions regarding cloud computing, information sharing and supply chain performance. The data provide evidence on the impact of cloud computing in enhancing information sharing. This information sharing through cloud computing appears to positively impact supply chain performance. This paper also provides support on the important role of inter-organizational trust in facilitating the use of cloud computing for information sharing purposes.     

面向物联网的系统及其网关设计

文章在分析了物联网和云计算特点的基础上,提出了面向物联网的系统,并详细设计了它的应用基础架构、网关结构、信息交互流程,最后阐述了面向物联网系统的应用结构。系统把云计算应用到面向物联网的系统中,降低了系统的成本,实现了接入网络的简单化、标准化。     

浅探云计算于电子商务的影响及未来应用

云计算被视为科技业的下一次革命,它将带来工作方式和商业模式的根本性改变,其与电子商务的结合也将对企业的方方面面产生重大影响。本文首先对云计算进行了简单的介绍,然后分析了云计算对电子商务的影响,在此基础上对云计算未来在电子商务中的应用作了简要的探究。