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Proceedings of the 32nd Annual Hawaii International Conference on Systems Sciences. 1999. HICSS-32. Abstracts and CD-ROM of Full Papers最新文献

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XMDS: the Xputer Multimedia Development System XMDS:计算机多媒体开发系统
M. Herz, Thomas Hoffmann, U. Nageldinger, Chris Schreiber
This paper introduces an Internet-based development system for transputers, which combines an application development framework with a runtime support to run applications on real hardware. The key idea of the Xputer Multimedia Development System (XMDS) is to provide worldwide, platform-independent access to transputer software and hardware. Therefore, XMDS's main system runs on the World Wide Web and is implemented in the Java language to run on all common Web browsers.
本文介绍了一种基于internet的计算机开发系统,该系统将应用开发框架与运行支持相结合,在实际硬件上运行应用程序。Xputer多媒体开发系统(XMDS)的关键思想是提供对计算机软件和硬件的全球、平台无关的访问。因此,XMDS的主系统运行在万维网上,并用Java语言实现,以便在所有常见的Web浏览器上运行。
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引用次数: 2
Avoiding communication hot-spots in interconnection networks 避免互联网络中的通信热点
Daniel Franco, I. Garcés, E. Luque
In creating interconnection networks for parallel computers, an efficient design is crucial because of its impact on performance. A high-speed routing scheme that minimises contention and avoids the formation of hot-spots should be included. We have developed a new method to uniformly balance communication traffic over the interconnection network, called distributed routing balancing (DRB), based on limited and load-controlled path expansion in order to maintain low message latency. DRB defines how to create alternative paths to expand single paths (expanded path definition) and when to use them depending on traffic load (expanded path selection). An evaluation in terms of latency and bandwidth is presented. Some conclusions and comparisons with existing methods are given. It is demonstrated that DRB is a method to effectively balance network traffic.
在为并行计算机创建互连网络时,高效的设计至关重要,因为它会影响性能。一个高速路由方案,最大限度地减少争用和避免形成热点。为了保持较低的消息延迟,我们开发了一种基于有限和负载控制的路径扩展的分布式路由平衡(DRB)方法来统一平衡互连网络上的通信流量。DRB定义了如何创建替代路径来扩展单个路径(扩展路径定义),以及何时根据流量负载使用它们(扩展路径选择)。给出了时延和带宽方面的评估。给出了一些结论,并与现有方法进行了比较。结果表明,DRB是一种有效的网络流量均衡方法。
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引用次数: 4
The Hausdorff distance measure for feature selection in learning applications 学习应用中特征选择的Hausdorff距离测度
S. Piramuthu
Recent advances in computing technology in terms of speed, cost, as well as access to tremendous amounts of computing power and the ability to process huge amounts of data in reasonable time has spurred increased interest in data mining applications. Machine learning has been one of the methods used in most of these data mining applications. It is widely acknowledged that about 80% of the resources in a majority of data mining applications are spent on cleaning and pre-processing the data. However, there have been relatively few studies on pre-processing data used as input in these data mining systems. In this study, we present a feature selection method based on the Hausdorff distance measure, and evaluate its effectiveness in pre-processing input data for inducing decision trees. The Hausdorff distance measure has been used extensively in computer vision and graphics applications to determine the similarity of patterns. Two real-world financial credit scoring data sets are used to illustrate the performance of the proposed method.
计算技术在速度、成本、巨大的计算能力以及在合理时间内处理大量数据的能力方面的最新进展,激发了人们对数据挖掘应用程序的兴趣。机器学习已经成为大多数数据挖掘应用中使用的方法之一。人们普遍认为,在大多数数据挖掘应用程序中,大约80%的资源用于清理和预处理数据。然而,在这些数据挖掘系统中,对作为输入的数据进行预处理的研究相对较少。在本研究中,我们提出了一种基于Hausdorff距离度量的特征选择方法,并评估了其在诱导决策树的输入数据预处理中的有效性。豪斯多夫距离测度已广泛应用于计算机视觉和图形应用,以确定模式的相似性。两个真实的金融信用评分数据集被用来说明所提出的方法的性能。
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引用次数: 28
A methodology for evaluating and selecting data mining software 一种评价和选择数据挖掘软件的方法
K. Collier, D. Sautter, Curt Marjaniemi, Bern Carey
As data mining evolves and matures more and more businesses are incorporating this technology into their business practices. However, currently data mining and decision support software is expensive and selection of the wrong tools can be costly in many ways. This paper provides direction and decision-making information to the practicing professional. A framework for evaluating data mining tools is presented and a methodology for applying this framework is described. Finally a case study to demonstrate the methods effectiveness is presented. This methodology represents the first-hand experience using many of the leading data mining tools against real business data at the Center for Data Insight (CDI) at Northern Arizona University (NAU). This is not a comprehensive review of commercial tools but instead provides a method and a point-of-reference for selecting the best software tool for a particular problem. Experience has shown that there is not one best data-mining tool for all purposes. This instrument is designed to accommodate differences in environments and problem domains. It is expected that this methodology will be used to publish tool comparisons and benchmarking results.
随着数据挖掘的发展和成熟,越来越多的企业将此技术纳入其业务实践中。然而,目前的数据挖掘和决策支持软件是昂贵的,选择错误的工具可能在许多方面代价高昂。本文为实践专业人员提供指导和决策信息。提出了一个评估数据挖掘工具的框架,并描述了应用该框架的方法。最后,通过一个实例验证了该方法的有效性。这种方法代表了北亚利桑那大学(NAU)数据洞察中心(CDI)使用许多领先的数据挖掘工具对真实业务数据的第一手经验。这不是对商业工具的全面回顾,而是提供了针对特定问题选择最佳软件工具的方法和参考点。经验表明,没有一种最佳的数据挖掘工具适用于所有目的。该工具旨在适应环境和问题领域的差异。预计这种方法将用于发布工具比较和基准测试结果。
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引用次数: 84
Microcellular handover in wireless ATM 无线ATM中的微蜂窝切换
Fan Jiang, Timo Käkölä
Wireless ATM networks can be implemented by adding mobility support functions to fixed ATM switches. This paper first describes a possible wireless ATM network and protocol architecture relying on "modular addition" of mobility support functions. This architecture sets a broad context where future WATM research can be conducted to elaborate on its various components. Within this context, this paper presents a holistic solution for one of the most important mobility support functions: the handover protocol for intra-switch handovers.
通过在固定的ATM交换机上增加移动支持功能,可以实现无线ATM网络。本文首先描述了一种可能的基于移动支持功能“模块化添加”的无线ATM网络和协议架构。该体系结构设置了一个广泛的背景,未来可以进行WATM研究,以详细说明其各种组件。在此背景下,本文提出了一个最重要的移动支持功能之一的整体解决方案:交换机内切换的切换协议。
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引用次数: 11
Market power and price volatility in restructured markets for electricity 重组电力市场中的市场力量和价格波动
T. Mount
The restructured market for electricity in the UK has experienced a systematic pattern of price spikes associated with the use of market power by the two dominant generators. Partly in response to this problem, the share of capacity owned by any individual generator after restructuring was limited in Victoria, Australia. As a result, a much more competitive market resulted with prices substantially lower than they were under regulation. Nevertheless, an erratic pattern of price spikes exists and the price volatility is a potential problem for customers. This paper argues that the use of a uniform price auction for electricity markets exacerbates price volatility. A discriminatory price auction is proposed as a better alternative that would reduce the responsiveness of price to errors in forecasting total load.
重组后的英国电力市场经历了一种系统性的价格飙升模式,这与两家占主导地位的发电企业对市场力量的使用有关。部分是为了应对这一问题,在澳大利亚维多利亚州,重组后任何个体发电机拥有的容量份额都是有限的。结果,一个竞争更加激烈的市场导致价格大大低于监管下的价格。然而,不稳定的价格飙升模式存在,价格波动对客户来说是一个潜在的问题。本文认为,在电力市场使用统一价格拍卖加剧了价格波动。歧视性价格拍卖是一种较好的替代方案,可以降低价格对预测总负荷误差的响应性。
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引用次数: 104
Computer based intelligence, design, choice, implementation, and control of intangible investments projects 基于计算机的智能,无形投资项目的设计,选择,实施和控制
H. Kivijärvi, M. Tuominen
In this paper we show by means of an actual project how a computer based system can support whole process of management of the intangible investments-intelligence, design, implementation, and control-in an manner. For the planning of intangible investment projects we have developed a set of tools where several decision aids are integrated to support the different phases of the investment planning process.
本文通过一个实际的项目,展示了一个基于计算机的系统如何支持无形投资管理的全过程——智能、设计、实施和控制。对于无形投资项目的规划,我们开发了一套工具,其中集成了几个决策辅助工具,以支持投资规划过程的不同阶段。
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引用次数: 11
An engineering approach to critical software certification 关键软件认证的工程方法
R. Loesh, A. B. Gosnell, R. M. Wyskida, J. D. Johannes, Thomas F. Benoist
A significant number of computer based systems currently exist that perform human related critical functions (e.g., medical diagnosis/treatment support, weapon systems, banking financial systems, transportation systems). The Software Engineering Directorate (SED) of the United States Army Aviation and Missile Command (AMCOM) develops and maintains numerous critical systems that fall into this category. Prior to operational deployment of AMCOM aviation and missile systems, the SED has responsibility for the certification of these critical systems. The paper describes a four pronged engineering based analysis for determining a Flight Readiness Risk Index and a Certification for Flight readiness recommendation.
目前存在大量基于计算机的系统,执行与人类相关的关键功能(例如,医疗诊断/治疗支持、武器系统、银行金融系统、运输系统)。美国陆军航空和导弹司令部(AMCOM)的软件工程理事会(SED)开发并维护了许多属于这一类的关键系统。在AMCOM航空和导弹系统投入使用之前,SED负责对这些关键系统进行认证。本文描述了确定飞行准备风险指数和飞行准备推荐认证的四方面工程分析。
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引用次数: 8
A study of Web diffusion in travel agencies 旅行社网络扩散研究
C. Standing, T. Vasudavan, Steven Borbely
This paper explores the opportunities for travel agencies in relation to the World Wide Web (WWW). The WWW coupled with business process re-engineering (BPR) has the potential to radically change the nature of the travel agent's business by providing on-line booking for customers twenty four hours a day, information and graphics on demand, and the facility for agents to access a wider variety of information sources and bargains. Hence, travel agents would be less dependent on the wholesale suppliers they are currently tied to. In addition, a model of Web technology diffusion is used to determine the pattern of technology adoption in travel agencies. Our survey of travel agencies found that a large percentage were either not using the WWW or had no plans to do so. Those that used the WWW had introduced the technology without much planning, especially at enterprise level. The diffusion of Web technology has much in common with that found in a study of an Australian University. Because of the lack of planning the potential of Web based electronic commerce is not being realised and businesses are not being re-engineered. The future for many travel agents is under threat because of competition from on-line travel agents and from customers using the Internet to book travel arrangements in a do-it-yourself manner.
本文探讨了旅行社与万维网(WWW)相关的机会。WWW与业务流程再造(BPR)相结合,有可能从根本上改变旅行社的业务性质,为客户提供24小时在线预订,按需提供信息和图形,并为代理商提供访问更广泛的信息源和特价商品的设施。因此,旅行社将减少对他们目前所依赖的批发供应商的依赖。此外,本文还采用网络技术扩散模型来确定旅行社的技术采用模式。我们对旅行社的调查发现,很大一部分旅行社要么没有使用万维网,要么没有使用万维网的计划。那些使用WWW的公司在引入这项技术时没有做太多规划,尤其是在企业层面。网络技术的传播与澳大利亚一所大学的研究发现有很多共同之处。由于缺乏规划,基于Web的电子商务的潜力没有被实现,业务也没有被重新设计。许多旅行社的未来正受到来自在线旅行社和客户的竞争的威胁,这些客户使用互联网以自己动手的方式预订旅行安排。
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引用次数: 36
The Probability Inquiry Environment: a collaborative, inquiry-based simulation environment 概率查询环境:一个协作的、基于查询的仿真环境
P. Vahey, Noel Enyedy, Bernard Gifford
Recent perspectives on learning encourage educators interested in technology based learning environments to reconsider their basic assumptions about teaching as transmitting correct information. Instead we view the teaching and learning enterprise as helping students construct knowledge from domain relevant experiences. We report on the Probability Inquiry Environment (PIE), which facilitates the development of probabilistic reasoning by making available collaborative inquiry activities and student-controlled simulations. These activities guide middle school students toward a deeper understanding of probability, a domain that is becoming increasingly important in the K-12 mathematics curricula of the United States but which is notoriously difficult to learn.
最近关于学习的观点促使对基于技术的学习环境感兴趣的教育工作者重新考虑他们关于教学是传递正确信息的基本假设。相反,我们认为教与学的事业是帮助学生从相关领域的经验中构建知识。我们报告了概率查询环境(PIE),它通过提供协作查询活动和学生控制的模拟来促进概率推理的发展。这些活动引导中学生更深入地理解概率,这一领域在美国K-12数学课程中变得越来越重要,但众所周知,它很难学。
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引用次数: 4
期刊
Proceedings of the 32nd Annual Hawaii International Conference on Systems Sciences. 1999. HICSS-32. Abstracts and CD-ROM of Full Papers
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