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2012 Ninth International Conference on Information Technology - New Generations最新文献

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Strategic Analysis Towards Deriving Competitive Advantage with the Use of FOSS: The Case of a South African University 利用自由/开源软件获得竞争优势的战略分析:以一所南非大学为例
Kehinde Dehinbo, P. Pretorius, J. Dehinbo
The Free and Open-Source Software (FOSS) presents certain freedoms in the use of software that could enhance the impact of ICT in the society while the Tshwane University of Technology (TUT) is yet to fully utilize these freedoms to their advantage. This study seeks ways of deriving competitive advantage with the use of FOSS in South African universities with specific reference to TUT. In other to achieve the above, the basics, problems and the benefits of FOSS are reviewed. Thereafter, the successful implementation of FOSS both in a developed country and a developing country are looked at. Furthermore, to enable an assessment of the possible impact of FOSS towards deriving competitive advantage, a SWOT analysis representing a synthesis between FOSS Strongpoint's, Weak points, and the Opportunities and Threats is presented in the South African context. Also done is an analysis based on the PESTE framework to identify the driving forces of change within the South African society in general as they relate to Political, Economic, Social Technological and Environmental factors that could have affected FOSS adoption. Similarly, Porter's 5 fundamental competitive forces are used to analyse the current FOSS phenomena towards the goal of enhancing FOSS adoption. A synthesis of these led to recommendations and concludes the study as a step towards increasing the awareness of FOSS and convincing users about the immense possibilities enabled by the silent revolution its double freedom in its enhanced form of Free/Libre Open Source Software (FLOSS) phenomenon towards deriving competitive advantage.
自由和开源软件(FOSS)在使用软件方面提供了一定的自由,可以增强ICT在社会中的影响,而茨瓦内科技大学(TUT)尚未充分利用这些自由。本研究寻求在南非大学中利用自由/开源软件获得竞争优势的方法,具体参照图坦卡蒙大学。为了实现上述目标,本文回顾了自由/开源软件的基础、问题和好处。然后,研究在发达国家和发展中国家成功实施自由/开源软件的情况。此外,为了能够评估自由/开源软件对获得竞争优势可能产生的影响,在南非的背景下,提出了一个SWOT分析,代表自由/开源软件的优点、缺点、机会和威胁之间的综合。还根据pest框架进行了一项分析,以确定南非一般社会内的变革驱动力,因为它们与可能影响自由/开源软件采用的政治、经济、社会、技术和环境因素有关。同样,波特的5种基本竞争力量被用来分析当前的自由/开源软件现象,以提高自由/开源软件的采用。综合这些因素得出了建议,并总结了这项研究,将其作为提高对自由/自由开源软件(FLOSS)意识的一步,并使用户相信无声革命所带来的巨大可能性,它以增强形式的自由/自由开源软件(FLOSS)现象带来的双重自由,从而获得竞争优势。
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引用次数: 5
Developing a Smart Grids System as a PBL with Agile Method on Computer Engineering Courses 在计算机工程课程中用敏捷方法开发PBL型智能电网系统
C. Coutinho, Johnny Cardoso Marques, S. Yelisetty, Samoel Mirachi, Alexandre Lima Possebon Ribeiro, Marcelo Amaral da Silva, A. Cunha, L. Dias
This paper describes an experiment of integrating three courses at the Brazilian Aeronautics Institute of Technology, within the Electronic and Computer Engineering Graduate Program on the 1st semester of 2011. A smart grids system was used as a Problem Based Learning (PBL) strategy together with an agile method and best practices within a project developed on three courses: CE-240 Database Systems Project, CE-245 Information Technologies, and CE-229 Software Testing. Students of these courses had to interact, in order to produce a prototype of a smart grids system, simulating a real project development. At the end, a survey among students has proved that the integration of practical exercises has provided higher levels of understanding and problem solving capabilities, improving students' knowledge. The survey also has shown that communication between students from different courses should be improved. The major findings of this paper were that the integration of the three courses was favorable by 83% of the surveyed students, and most students (73%) have considered that their knowledge was improved. Authors recommend the use of practical exercises, courses integration, and PBL to considerably increase the quality of electronic and computer engineering courses.
本文描述了2011年第1学期巴西航空技术学院电子与计算机工程研究生项目中整合三门课程的实验。将智能电网系统作为基于问题的学习(PBL)策略,结合敏捷方法和最佳实践,在一个项目中开发三门课程:CE-240数据库系统项目、CE-245信息技术和CE-229软件测试。这些课程的学生必须互动,以产生一个智能电网系统的原型,模拟一个真实的项目开发。最后,一项对学生的调查证明,实践练习的结合提高了学生的理解能力和解决问题的能力,提高了学生的知识水平。调查还显示,不同课程的学生之间的交流应该得到改善。本文的主要发现是83%的受访学生对三门课程的整合表示赞同,大多数学生(73%)认为他们的知识得到了提高。作者建议使用实践练习、课程整合和PBL来显著提高电子和计算机工程课程的质量。
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引用次数: 5
Spectrum Detection in Cognitive Networks by Minimizing Hidden Terminal Problem 基于最小化隐藏终端问题的认知网络频谱检测
Y. Reddy
In the wireless network, the node is visible but is not available for communication. Similarly, the primary signal is present and difficult to detect. The primary signal problem is similar to hidden node problem, but currently interpreted as false alarms. In this research, two models (probability based and Drake's equation) were designed and tested through simulations. The results show that Drake's equation with probability-based model performs better than basic probability-based model to detect the hidden signal.
在无线网络中,节点是可见的,但不能用于通信。同样,主信号是存在的,很难检测到。主信号问题类似于隐藏节点问题,但目前被解释为虚警。本研究设计了两个模型(基于概率和德雷克方程),并通过仿真进行了验证。结果表明,基于概率模型的Drake方程比基于概率的基本模型更能检测出隐藏信号。
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引用次数: 1
Developing a Touchscreen-based Domotic Tool for Users with Motor Disabilities 为运动障碍用户开发一种基于触摸屏的家用工具
Juan Pablo Cofré, Gabriel Moraga, Cristian Rusu, Iván Mercado, R. Inostroza, Cristhy Jiménez Granizo
Domotics refers to the set of informatics and electronics systems able to automate, control and monitor a home. Accessibility can be defined as the users' potential for interaction, regardless of their technical, cognitive or physical abilities. Domotics usually focuses on the "intelligent home" concept, without explicitly considering the benefits that accessible services can provide for people with special needs. The paper presents the developing process of a domotic tool prototype that allows users with motor disabilities to control the surrounding artifacts of their home through the use of a touch screen-based mobile device. The prototype was developed using a user-centered design process, which explicitly includes usability and accessibility issues. The validation of the tool was conducted through analysis that involved (1) usability specialists, (2) physical therapists, and (3) real users from Teleton Foundation, a Chilean institution focused on rehabilitation and integration into society of children and adolescents who have motor disabilities.
家用电器是指一套能够自动化、控制和监控家庭的信息和电子系统。可访问性可以定义为用户交互的潜力,而不管他们的技术、认知或身体能力如何。Domotics通常专注于“智能家居”概念,而没有明确考虑无障碍服务可以为有特殊需求的人提供的好处。本文介绍了一种家用工具原型的开发过程,该原型允许有运动障碍的用户通过使用基于触摸屏的移动设备来控制家中周围的人工制品。原型是使用以用户为中心的设计过程开发的,其中明确包括可用性和可访问性问题。该工具的验证是通过分析进行的,其中包括:(1)可用性专家,(2)物理治疗师,(3)来自Teleton基金会的真实用户,Teleton基金会是一家专注于运动残疾儿童和青少年康复和融入社会的智利机构。
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引用次数: 24
Behavior Modeling of Programmable Metallization Cell Using Verilog-A 基于Verilog-A的可编程金属化电池行为建模
Darshan A. Dimplu, Fei Wang
Programmable metallization is a promising type of non-volatile memory that displays several advantages over the currently wide spread flash memory, such as higher writing speed, better scalability, and longer data retention period. The unique electrical behavior of programmable metallization cell has not been included in any popular EAD tools yet. Therefore, a behavior model of Programmable Metallization Cell is designed using Verilog-A language in this paper. This model can be easily imported into PSPICE to enhance circuit level design related to programmable metallization cell.
可编程金属化是一种很有前途的非易失性存储器,与目前广泛使用的闪存相比,它具有几个优点,例如更高的写入速度、更好的可伸缩性和更长的数据保留时间。可编程金属化电池的独特电气性能尚未被包括在任何流行的EAD工具中。因此,本文采用Verilog-A语言设计了可编程金属化单元的行为模型。该模型可以很容易地导入到PSPICE中,以增强与可编程金属化电池相关的电路电平设计。
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引用次数: 2
The Exploration of the E-Learning Standard Test System E-Learning标准测试系统的探索
Xinyu Zhang, Qian Wang, Yiqian Lu
The paper designs and implements the E-Learning Standard Test System. It is composed of three loosely coupled components: XSD translated from the E-Learning standard, the XML parsing and validating package and the test result displaying package.
本文设计并实现了E-Learning标准考试系统。它由三个松散耦合的组件组成:从E-Learning标准翻译过来的XSD、XML解析和验证包以及测试结果显示包。
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引用次数: 0
Acoustic Signature Based Intelligent Health Monitoring of Air Compressors with Selected Features 基于声学特征的选定特征空气压缩机智能健康监测
N. Verma, Tarun Maini, A. Salour
Dimensionality reduction and identification of relevant features are important for the classification accuracy. Selecting large number of features increases computational complexity whereas selection of too few features may not contain sufficient information required for the classification. This paper presents the comparative performance of different feature selection techniques namely Principal Component Analysis (PCA), Independent Component Analysis (ICA), Mutual Information (MI) methods: MIFS, mRMR, NMIFS, MIFS-U, and Bhattacharyya Distance (BD) in order to select optimal feature set for attaining better classification accuracy. With the results of comparative performance analysis one can get valuable insight about the effectiveness of different feature selection techniques, which in turn allows us to use the most suitable feature selection technique for enhanced fault diagnosis using CBM of air compressor.
降维和相关特征的识别对分类精度至关重要。选择大量的特征增加了计算复杂度,而选择太少的特征可能不包含足够的分类所需的信息。本文介绍了主成分分析(PCA)、独立成分分析(ICA)、互信息(MI)方法MIFS、mRMR、NMIFS、MIFS- u和Bhattacharyya Distance (BD)等不同特征选择技术的性能比较,以选择最优特征集以获得更好的分类精度。通过比较性能分析的结果,可以对不同特征选择技术的有效性有更有价值的认识,从而使我们能够使用最合适的特征选择技术来利用CBM对空压机进行增强故障诊断。
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引用次数: 16
Using Two-tier Bitwise Interest Oriented QRP Data Structure for High Clustering through Interest Similarity in SWB P2P Systems 基于兴趣相似度的SWB P2P系统中基于两层位兴趣导向QRP数据结构的高聚类
T. Lim, Yong Liang Choong, A. Lee
The concept of "Small-World" paradigm has been used by many peer-to-peer (P2P) systems to achieve high clustering and low number of hops to arrive to its desired target. This approach intends to improve performance of P2P systems. The Small world concept requires that the architecture of a P2P system to achieve high cluster coefficient and low average hop between any two randomly chosen peers. In this research, we propose an enhanced hierarchical overlay network by incorporating the concept of Small world into the base hierarchical architecture. This research adopts the Query Routing Protocol (QRP) data structure of a hierarchical P2P network by storing the interest information of files in the leaf peers in the network. The QRP in the leaf peers will be aggregated and propagated to the Super Peer so that interest information could be used to form short-range, medium-range and long-range links with other Super Peers to achieve low average hop. As peers join and leave the network, a proposed rewiring protocol is used to ensure peers are clustered by interest to form high clustering coefficient so that search activities are yielding higher relevance results in a more predictable fashion. We simulated the porposed small world P2P using test scenarios to evaluate recall rate of the small world P2P system. Our simulated results evaluate and benchmark our proposed Small-World Bee (SWB) overlay network with iCluster [3], Firework Query Model [5] and Lime wire [1] to assess performance obtained and goals achieved in the research work so that future research directions could be planned.
“小世界”范式的概念已被许多点对点(P2P)系统用于实现高集群和低跳数到达预期目标。这种方法旨在提高P2P系统的性能。小世界概念要求P2P系统的架构在任意两个随机选择的对等点之间实现高簇系数和低平均跳数。在本研究中,我们提出了一种增强的分层覆盖网络,将小世界的概念融入到基本的分层体系结构中。本研究采用分层P2P网络的查询路由协议(Query Routing Protocol, QRP)数据结构,将网络中叶子节点上文件的兴趣信息存储起来。叶子对等体中的QRP将被聚合并传播到超级对等体中,以便利用兴趣信息与其他超级对等体建立短程、中程和远程链路,以达到低平均跳数的目的。当对等点加入和离开网络时,建议使用重新布线协议来确保对等点按兴趣聚类以形成高聚类系数,以便搜索活动以更可预测的方式产生更高相关性的结果。我们利用测试场景模拟了拟建的小世界P2P,以评估小世界P2P系统的召回率。我们的模拟结果对我们提出的小世界蜜蜂(Small-World Bee, SWB)覆盖网络进行了iCluster[3]、Firework Query Model[5]和Lime wire[1]的评估和基准测试,以评估研究工作中获得的性能和实现的目标,从而规划未来的研究方向。
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引用次数: 0
CIDS: A Framework for Intrusion Detection in Cloud Systems CIDS:云系统中入侵检测的框架
H. Kholidy, F. Baiardi
By impersonating legitimate users, intruders can use the abundant resources of cloud computing environments. This paper develops a framework for "CIDS" a cloud based intrusion detection system, to solve the deficiencies of current IDSs. CIDS also provides a component to summarize the alerts and inform the cloud administrator. CIDS architecture is scalable and elastic with no central coordinator. This paper describes the components, architecture, detection models, and advantages of CIDS.
通过冒充合法用户,入侵者可以利用云计算环境的丰富资源。针对目前入侵检测系统存在的不足,本文提出了一种基于云的入侵检测系统“CIDS”框架。CIDS还提供了一个组件来汇总警报并通知云管理员。CIDS体系结构具有可伸缩性和弹性,没有中央协调器。本文介绍了CIDS的组成、体系结构、检测模型和优点。
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引用次数: 123
The Use of Knowledge Management Systems to Support Knowledge Creation and Sharing Activities among Employees -- A Survey Based Study of IT Shared Services Company 利用知识管理系统支持员工之间的知识创造和共享活动——基于IT共享服务公司的调查研究
A. Lee, T. Lim
The use of knowledge management systems to support knowledge creation and sharing activities has become the priority of organizations to stay competitive in the global market. This is a case study that focuses on how IT Shared Services Company adopted knowledge management system as an automated IT tool and there action of the employees with respect to the organization when the system is implemented using few strategies to cultivate knowledge creation and sharing environment and culture in the organization. Due to many unknown variables and factors, the research undertaken and presented in this paper is an exploratory study with objectives to analyse and investigate the outcomes from the implementation of knowledge management system in the organization. The results revealed that the use of knowledge management system in the organization depends on the employees "taskgroup" classifications which had been categorized based on their daily job activities, whereas for the types of incentives [6, 8] provided to the employees as a motivating factor to employees varies among staff who have served the organization for a number of years. The findings of this study is able to help both practitioners and researcher to build a fundamental understanding of how knowledge management system is being used by employees from different types of job category who are more likely to use knowledge management system in an IT Shared Services company.
使用知识管理系统来支持知识创造和共享活动已成为组织在全球市场中保持竞争力的优先事项。这是一个案例研究,重点关注IT共享服务公司如何采用知识管理系统作为自动化IT工具,以及当系统实施时,员工对组织的行动,使用一些策略来培养组织中的知识创造和共享环境和文化。由于存在许多未知变量和因素,本文所进行的研究是一项探索性研究,旨在分析和调查组织实施知识管理系统的结果。结果表明,知识管理系统在组织中的使用取决于员工“任务组”的分类,这些分类是根据员工的日常工作活动进行分类的,而作为员工激励因素提供给员工的激励类型[6,8]在为组织服务多年的员工中是不同的。本研究的结果能够帮助从业者和研究者对IT共享服务公司中来自不同类型工作类别的员工如何使用知识管理系统有一个基本的了解。
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引用次数: 11
期刊
2012 Ninth International Conference on Information Technology - New Generations
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