基于ASP.NET Ajax技术的网上订餐系统设计与实现

Ajax技术很好地解决了当前Web开发中存在用户等待时间较长的问题。给出一种在使用ASP.NET平台进行Web应用开发下加入Ajax技术的新的Web应用模型。并结合网上订餐系统具体说明Ajax技术在系统中的应用。实践表明,使用基于Ajax的架构应用,大大提高了系统的响应速度,减少了用户的等待时间。     

基于Ajax的网络答疑系统的研究与应用

Ajax技术很好的解决了当前Web开发中存在用户等待时间较长的问题。本文给出了一种在使用Struts、Spring、Hibernate3种开源框架进行Web应用开发下加入Ajax技术,构建一种新的Web应用模型。并结合网络答疑系统具体说明Ajax技术在3层体系结构中的应用。实践表明,使用基于Ajax的架构应用,大大提高了系统的响应速度,减少了用户的等待时间。     

基于Ajax的网络答疑系统的研究与应用

Ajax技术很好的解决了当前Web开发中存在用户等待时间较长的问题。该文给出了一种在使用Struts、Spring、Hibernate三种开源框架进行Web应用开发下加入Ajax技术,构建一种新的Web应用模型。并结合网络答疑系统具体说明Ajax技术在三层体系结构中的应用。实践表明,使用基于Ajax的架构应用,大大提高了系统的响应速度,减少了用户的等待时间。     

Ajax 技术在公路信息管理系统中的应用

Ajax 技术是目前 Web 应用领域的热点,它的出现,提高了 Web 程序的交互应用,Ajax 的简单开发部署和广泛的浏览,给了 Web 用户一种更好的交互体验.介绍了 Ajax 的定义、关键技术、工作原理;研究了 Ajax 技术在 Web 中的应用,给出了基于 Ajax 技术的公路信息管理系统的工作流程及简单实例.     

Ajax技术及其应用研究

Web应用所提供的体验和用户从桌面应用程序所得到的体验在响应速度、易用性等方面存在着巨大的差距,为了改善Web应用程序给用户带来的体验,IT界引出了Ajax这个新名词.文章简要介绍了Web 2.0的Ajax技术的基础理论,就其关键技术中的XMLHttpRequest对象作了重点分析,并对Ajax技术的优缺点及其应用作了探讨,展示了Ajax所以能给用户带来更为强大的Web体验的实质.     

Ajax在Web应用上的分析与思考

随着网络技术的日益发展和成熟,人们对网络应用的要求也越来越高,传统的Web应用开发模型已经不能很好的适应当前的用户需求．而Ajax技术较好的解决的了目前面临的问题,同时也对今后的Web应用模型产生了重大影响,文章阐述了Ajax技术及其工作原理．展望了Ajax技术今后在Web应用开发中的应用前景。     

用Ajax＋Comet轻松实现实时web聊天系统

通过一个小型实时Web聊天系统的开发过程,向读者介绍了如何使用Ajax与Comet推送技术。通过使用Ajax＋Comet推送技术可以大大提升传统Web应用的用户体验．消除传统Web应用“请求一响应”流程的负面效应。     

Ajax在Web中的应用研究

Ajax通过浏览器与服务器之间的异步通信,解决了传统的Web应用中页面提交刷新过程中出现的弊端,实现了无刷新页面提交,增强了Web应用程序的互动性,改善了用户体验.本文介绍了Ajax的组成及技术框架,并通过一个实例给出了Ajax在Web开发中的典型应用,最后对Ajax技术的不足进行了分析并对Ajax的发展进行了展望.     

快速响应Web请求的Ajax技术研究

Web应用的迅速发展在一定程度上受到网络带宽限制，Ajax技术的出现为Web开发应用带来了新的机遇。文中介绍了Ajax技术原理，详细分析了常用Ajax组件工作原理，对具代表性的Ajax组件的使用方法也进行了阐述，并且分析了其特点。对希望利用Ajax技术提高Web页面响应效率，增加用户体验的开发者有一定的借鉴意义。     

利用Ajax提高页面载入速度

网络的反应速度是Weh应用程序设计的关键,Ajax作为一种新的应用程序技术,在Web应用程序开发中有独特的优势,探讨了在开发Web应用程序过程中如何有效地通过Ajax降低网络负载和改善用户浏览体验等问题,为开发和研究Web应用开辟了新的思路;     

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.