基于TUXEDO的OLTP系统的设计与实现

该文介绍了应用于联机事务处理的中间件TUXEDO,并讨论了其主要功能和应用结构,提出了在UNIX操作系统下基于此中间件的三层客户／服务器应用平台的设计。在此基础上将其应用于城乡通系统。     

基于TUXEDO的联机事务处理的平台设计与应用

本文介绍了应用于开放系统联机事务处理的一种中间件－ＢＥＡ ＴＵＸＥＤＯ,讨论了其主要功能和应用结构,并提出了在ＵＮＩＸ操作系统下基于ＴＵＸＥＤＷ的三层客户／服务器平台的设计,在此基础上将其应用于城市公共交通收费系统中,实现多卡合一。     

无线安全中间件的设计与应用

本文提出了一个适应多种移动终端技术的无线安全中间件的设计方案,介绍了中间件的各部分内容.实现并将此中间件应用于无线电子商务中,具有一定的实践意义.     

中间件技术在银行业务系统中的应用

交易中间件是专门应用于联机事务处理的一类中间件,本文分析了交易中间件的特点与功能,并提出了在银行业务系统中具体的应用与解决方案。     

中间件TUXEDO的应用研究

中间件技术已经越来越广泛地应用于各个领域，本文就针对于TUXEDO中间件这一领域，研究TUXEDO应用模式，介绍了其组件软件模型，并以中国石化集团比工程清算子系统为例，论述了TUXEDO的开发实现机制，该研究最终为中间件技术的应用发展奠定了一定的理论基础。     

基于ALE规范的分布式RFID中间件研究与实现

随着RFID技术的应用范围越来越广,其系统规模也越来越大。RFID中间件效率低,且缺乏统一的标准。从实际出发,采用ALE(Application Level Event)规范设计一个通用的分布式RFID中间件架构。该架构不仅可以提供统一的接口,还可以有效地降低系统规模过大所带来的不良影响。所设计的RFID中间件可以应用于物流管理、车辆管理、资产管理、生产制造等多种RFID技术应用场合。为验证其性能,最后设计了基于RFID中间件的资产管理系统,通过应用验证了基于ALE规范的分布式RFID中间件的可靠性和高效性。     

轻量级WebGIS中间件的设计与实现

GIS中间件是实现多层分布式GIS应用的核心，能有效地提供各类空间信息服务，屏蔽不同空间数据源的差异性。该文以GIS中间件技术的研究为起点，提出了WebGIS中间件框架BSGIS，对BSGIS的体系结构和处理流程进行阐述，介绍了BSGIS的具体实现，并将其应用于政府道路管理系统之上，证明了该框架在实际应用中的可行性，解决了WebGIS开发复杂性高、成本大、成功率低等问题。     

基于CORBA和XML的中间件设计与实现

目前,中间件（Middleware）在解决异构平台的通信问题上应用越来越为广泛,但由于其功能繁琐,使用复杂,价格昂贵,很难适用于小型企业异构数据集成通信。针对此问题,提出了一种中间件框架实现――基于CORBA和xml的中间件。该中间件通过xml定义统一的访问请求格式,运用corba原理和JDBC来进行对远程异构数据库的访问操作.框架设计实现了该中间件可移植,性价比高,可扩展性,易操作性的特点,适合于小型企业应用。     

RFID中间件基准性能测试平台研究与设计

RFID中间件作为RFID技术应用的神经中枢,其性能的优劣直接影响整个RFID系统的性能.本文针对RFID中间件的特点,提出了一套衡量RFID中间件基准性能的参数及其测试方法,并介绍了在此基础上的自动化测试平台软件的设计.     

支持多应用任务的WSNs中间件的设计与实现

无线传感器网络作为物联网的基础设施,需要同时运行多种应用任务来满足不同用户的复杂需求。现有的无线传感器网络中间件主要是为某一类应用领域而设计和开发的,其上运行的是单一应用任务。设计了一种支持多应用任务的无线传感器网络中间件架构,并根据此架构设计与实现了整个系统与各个功能组件,整个中间件可以根据不同需求承载多种应用任务,并且通过模拟网络的实验验证了该中间件系统具有较好的可行性和实用性。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.