XML技术在网络教育中的应用

介绍了XML产生的背景、基本概念和XML在网络教育中的应用,得出了XML比HTML和数据库更适合于作为网络信息标准的结论.同时,提出了利用XML技术解决网络教育服务快速发现的思路:将RDF作为网络教育服务WSDL规范的描述工具.     

XML在网络教育中的应用

随着数字化、信息化时代的来临，人们的教育需求日益增加，促进了网络教育在我国的发展。本文介绍了XML技术的特点，XML在网络教育中的优势以及XML在网络教育中的应用。     

XML在网络教育资源描述与管理中的应用

XML由于具有简单，开放，可扩展，灵活，自描述等特点，在网络教育资源描述和管理方面有着天然的优势。本文讨论了XML在网络教育资源描述、个性化显示、交互、更新、和访问方面的应用。     

XML技术给网络教育带来的变革

本文作者对XML技术给网络教育带来的变革进行了阐述。我们希望通过这篇文章能引来更深刻的研究和探讨，不仅从理论层面，更从实际应用角度提供可操作的借鉴，推动XML技术在网络教育中的具体应用。     

XML在网络教育资源描述与管理中的应用

XML由于具有简单,开放,可扩展,灵活,自描述等特点,在网络教育资源描述和管理方面有着天然的优势。本文讨论了XML在网络教育资源描述、个性化显示、交互、更新、和访问方面的应用。     

XML技术与网络教育 XML技术给网络教育带来的变革

本文作者对XML技术给网络教育带来的变革进行了阐述.我们希望通过这篇文章能引来更深刻的研究和探讨,不仅从理论层面,更从实际应用角度提供可操作的借鉴,推动XML技术在网络教育中的具体应用. 查看近年来的信息技术网站和杂志,就会发现,"XML"这个术语频繁出现.那么,究竟什么是"XML"呢?     

XML技术与网络教育 XML技术给网络教育带来的变革

本文作者对XML技术给网络教育带来的变革进行了阐述。我们希望通过这篇文章能引来更深刻的研究和探讨,不仅从理论层面,更从实际应用角度提供可操作的借鉴,推动XML技术在网络教育中的具体应用。     

基于应用层为核心的网络教育系统集成

发展网络教育是优化教育资源，实现教育大众化和构建终身教育的需要。网络教育系统的集成是亟待解决的关键问题。该文提出在复杂的网络和应用环境下，基于Java．组件模型和XML协议的以应用层为核心遵循开放的系统集成标准和远程教育标准集成网络教育系统的方法和关键技术。     

基于JXTA技术的网络教育资源和学习模式的研究

分析当前网络教育资源浩繁、无描述、查找和使用困难，且不利于学习者有目标及自主性学习的现状，提出了利用基于JXTA技术的对等组概念实现网络教育资源分布式共享，并采用国家标准学习对象元数据LOM和内容包装CP规范及XML信息描述方式描述网络教育资源的内容、特点及结构，实现网络教育资源的描述、组织、发布、查找、浏览、下载，以达到网络学习的分布式、共享性、自主性和个性化目标的完整方案。     

基于XML技术的网络教学平台设计

网络教学平台是网络教育的重要组成部分。针对现行网络教学平台存在的开放性、共享性差，数据传输效率低，对教师专业性要求强等缺点，通过引入XML技术，建立开放式的学习资源库，实现实时高效的数据传输，解决非计算机专业教师的制作网络课件问题．同时为平台的不同用户提供个性化服务。     

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。