基于XML元数据的研究与开发

XML(eXtensible Markup Language)可扩展标记语言是W3C组织于1998年2月发布的第二代Internet网页设计语言标准。XML的出现为Web应用注入了新的活力，其自定义标记语言的特点使标记更加灵活，语义明确。XML把显示格式从文档中分离出去，并使超链接属性具有自动跟踪功能。对XML元数据进行了相应的开发，创建和使用可搜索的元数据，使现有Web中的信息更加有用，可快速准确地获得所需数据，从而大大地提高了搜索引擎的效率。     

基于XML的工程造价管理系统的设计与实现

研究了可扩展标记语言(XML)技术结合其他编程语言实现了基于XML的异构数据源集成,并用XML应用程序可缩放矢量图形(SVG)、同步多媒体集成语言(SMIL)和频道定义格式(CDF)分别实现了工程造价管理系统中的矢量统计图、多媒体信息发布和Web广播.满足了用户对广泛的异构数据交换、复杂的数据显示、多媒体的信息发布和预定的要求.     

XML的即指即显与分页显示

可扩展标记语言或者简称XML ,是Web应用的一种新技术 ,它正以其自身的优势 ,逐渐成为网络世界的“国际语言”。应用XML组织数据 ,通过XSL和JavaScript获取数据分页显示到屏幕 ,同时实现用户的即指即显。     

基于XML&WEB的系统建模与仿真方法的研究

XML为Web提供了一种新的组织信息和知识的途径。在基于Web的建模与仿真中,使用XML,“文档”这一概念可以扩展为对模型信息的封装。该文利用XML技术,设计了Web仿真系统建模的模型规范：建模可视化规范(MVL)和模型的可扩展标志语言(MXL)。并在此基础上,构建了模型融合的体系结构,形成了基于XML的Web仿真系统建模与仿真一体化方法。     

使用XSL表现XML的几种方法

XML是进行数据组织的、可扩展的标记语言，XSL则一种样式表语言，定义了XML内容的表现形式。本文介绍了使用XSL样式表显示XML文档的三种方法，及各自的优点。     

Web报表的XML＋JavaScript解决方案

XML(eXtensible Markup Language，可扩展标记语言)是一套用来标记文档的语法，它和现在的Web标记语言HTML相同，都是由SGML发展而来(由于SGML过于求大、求全，未能广泛应用)，同样由W3C(World Wide Web Consortium万维网联盟)制定标准。其目标是统一未来跨平台数据交换的格式。     

基于XML的中间层交互技术的研究

由于HTML自身的不足．所以无法适应Web发展的复杂性和多变性，也不利于机器之间的数据交换和信息传递，通过对XML和HTML作多个角度的对比，文中提出将XML作为载体实现Web上的动态交互。首先从XML的自身特点出发，分析了XML驱动下的Web体系结构，从而得出基于XML的中间层交互技术的实现原理．重点研究了如何设计与XML相匹配的Web数据库，用XML查询数据库的实现方法，以及如何构造从XML到数据库的映射关系，具体包括从XIviL的DTD或者Schema出发来设计数据库的结构或者从数据库本身出发来构造与之相适应的DTD或Schema，最后分析了浏览XML格式信息的诸多策略。     

一种面向文档的XML的索引查询方法

如何高效利用网络资源一直是人们关注的焦点。XML(可扩展性标记语言)不仅支持自定义标记,还能表达语义,因而为提高网络搜索的准确性提供了可能。文章提出了现行网络环境下的XML搜索引擎模型,介绍了基于XML可扩展标记语言查询技术实现的核心部分———索引数据库的建立和查询。     

基于Web services的XML引擎安全模型研究*

Web services提供软件接口,实现Internet上服务的调用。它以XML为基础,使用了基于XML语言的协议来描述要执行的操作或要与另一个Web服务交换的数据。SOAP是Web services的传输层协议,所有的SOAP消息均使用XML编码。XML engine是建立在Web service上的一种技术。在整个Web服务应用中,XML处于消息层的位置,而XML engine则针对Web服务应用中的XML进行操作,所以称做消息层网关。在XML engine平台上,通过动态共享对象(DSO)机制,将     

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     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

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。