多Agent技术在构建Web远程教育系统中的应用

远程教育作为伴随着计算机技术、网络技术和多媒体技术的发展而兴起的全新的教学方式日益普及,然而随着高新技术的发展,传统的远程教育方式已无法满足需要,因此研究具有智能的远程教育系统是一个趋势.文章通过对传统远程教育方式的分析,指出其不足,并在此基础上将Agent技术引入远程教育系统中,提出了一种基于Web的多Agent智能型远程教育系统框架.     

基于WWW多媒体远程教育系统的开发

计算机、网络和多媒体等技术的广泛应用,给教育界带来了前所未有的发展机遇,利用这些技术来发展远程教育已成为教育工作者的研究焦点.基于WWW多媒体远程教育系统是结合我校的实际情况,利用Web、数据库和多媒体等技术开发出来的系统.     

基于多Agent的现代远程教育系统框架研究

远程教育作为伴随着计算机技术、网络技术和多媒体技术的发展而兴起的全新的教学方式日益普及,然而随着高新技术的发展,传统的远程教育方式已无法满足需要,因此研究具有智能的远程教育系统将是一个趋势。通过对传统远程教育方式的分析,指出其不足之处,并在此基础上将Agent技术引入远程教育系统中,提出了一种基于多Agent的智能型远程教育系统框架。     

基于事务的Web日志挖掘在远程教育中的应用

远程教育的生存和发展将取决于能否提供个性化的教学服务,Web日志挖掘技术使个性化的远程教育成为可能.本文介绍了一种基于事务的Web日志挖掘方法,并对其在个性化远程教育系统中的应用和实现作了探讨和研究.     

远程教育系统及其应用

远程教育是随着当今计算机及网络技术的发展而产生、发展的。Ｉｎｔｅｒｎｅｔ的应用和普及为远程教育的发展提供了新的机遇。本文分析了远程教育系统的基本原理,提出了一个远程教育系统的工作模型,它包括一个基于Ｗｅｂ 的远程教育系统和一个基于视频会议的实时教育系统。本模型已初步实现,并在实际教学中取得了良好效果     

基于网格的现代远程教育系统模型研究

远程教育模式经过不断发展,现已经成为以互联网和多媒体为主要媒介的现代远程教育,真正突破了学习时间和地点的局限.而随着网格技术的发展,又为现代远程教育模式的构建提供了新的技术。基于网格技术,可以在不增加新资源的情况下,把现有的远程教育资源汇聚起来,为远程教育用户提供一种随处可得的、可靠的、标准的同时还是经济的远程教育能力。因此,本文建立了一种在网格技术支持下的现代远程教育系统模型。     

基于Agent的网络远程教育系统研究

利用Agent技术增强网络远程教育系统的智能性和适应性是现代远程教育的发展趋势,本文根据Agent的特性,及其对网络远程教育系统智能化的强大支持能力,建构了一个基于Agent的网络远程教育系统结构模型,期望对我国远程教育智能化的发展有所裨益。     

数据挖掘在现代远程教育中的应用

远程教育的生存和发展在很大程度上取决于能否提供个性化的教学服务,数据挖掘技术使个性化远程教育成为可能。本文就数据挖掘技术在个性化远程教育系统中的应用作了探讨和研究。     

远程教育COD系统的实现方案

远程教育是指利用网络技术实施教育的一种现代教育形式。新技术的发展和终身教育的兴起,促进了远程教育的高速发展,世界各国都非常重视远程网络教育体系的构建和远程网络教育基础设施建设。对远程教育实现方案进行研究,具有很重要的意义。文中首先介绍了远程教育的特点;然后将COD系统的运行原理应用于远程教育中,设计了远程教育COD系统的详细结构和数据库结构;最后提出了系统的实现方案。     

远程教育的发展及其相关问题的探讨

本文首先介绍了远程教育的特点,接着说明了远程教育的发展模式。然后论述了远程教育的支撑技术和典型的应用系统。最后详细介绍了国内远程教育的状况,并分析了存在的问题。     

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.