基于Web的网络教学平台的设计与实现

随着计算机网络技术的高速发展,使人类有了新的教学途径:网上教学。这种教学方式如今已经成为部分高校和教育体系的重要组成部分,而完成网上教学任务的网络教学平台环境也成为现今热门的技术。文中正是在这个前提下研究了基于Web网络教学平台的设计与开发。首先分析了网络教学平台的三种用户:学生、教师、管理员对网络教学平台的主要需求。其次,在网络教学平台实用技术方面,着重介绍了基于Web网络教学平台经常使用的"三层B/S"模型。最后,重点分析了"三层B/S"结构模型在网络教学平台中的应用。     

基于网络虚拟化工实习平台开发与应用

为弥补化工实习教学手段不足,采用虚拟现实技术、Web技术等,开发基于网络虚拟实习平台。文章分析平台网络结构和软件架构,提出平台设计原则和目标,并对系统功能模块进行了阐述。得出系统采用B/S和C/S混合网络结构以及三层软件架构,最后给出系统技术实现。     

Web技术在校园网多媒体教学平台上的应用

校园网将成为校园信息资源共享,传播的重要途径。本文着重介绍了将Web技术应用于校园网环境下多媒体教学平台的支持技术:教学信息交互层、教学应用处理层和教学资源数据层的三层B/S模式,网络CAI课件开发技术等。     

基于Blog与RSS的主动探究式教学平台设计

针对传统网络教学不足,研究设计了一个以Blog为载体,融合RSS聚合的主动探究式教学平台.分析了系统需求,选择三层B/S平台架构、ASENET技术、SQL Server 2005数据库为技术路线,从功能模块、Web页面与数据库3个方面对平台做了详细设计,并实现了南通大学计算机教学博客的应用实例.该平台为教师与学生提供了开展探究、协作、互动的网络学习环境,是Blog,RSS与网络教学系统相结合的有益尝试.同时,相对于使用ASP技术的Blog系统,三层B/S与.NET技术的使用使得本平台的系统扩展性与系统性能有了大幅提高.     

基于APM Express的网络教学平台的设计与实现

Internet技术的广泛应用和Web技术的不断发展,对传统的教学方式产生了深远的影响。基于网络的教学平台成为当今计算机应用的一个热点,利用APM Express开发组件,采用B/S体系结构搭建一个网络教学平台,详细描述了系统的功能、设计和实现,体现了网络教学平台的开放性、交互性和自主性等特点。     

基于B/S网上教学资源管理平台的分析与设计

随着信息化技术的不断发展,网上教学资源管理平台已经成为目前高校教学中非常重要的工具,尤其是在当前信息技术和计算机网络技术飞速发展的时代,高校开始充分利用现有网络资源来进行教学资源管理。区别于传统的C/S模式,B/S开发模式使得高校内部用户通过校园网或者互联网就可访问本平台。本文就基于B/S模式的网上教学资源管理平台进行详细分析。     

个性化网络辅助教学系统的设计与实现

讨论了系统的个性化特点,分析了与传统网络教学系统的不同,给出了网络教学系统的个性化策略,构建出一种基于B/S(Browser/Server)多层体系结构的个性化网络教学系统设计方案与框架模型;通过对《Visual Basic程序设计》课程网络教学系统的开发设计,探讨了网络教学系统的总体设计和实现方法。最后,结合实际需求得到本系统的总体结构和功能模块,并通过系统结构设计、前端开发及后台数据库的设计,构建了一个以ASP技术为基础的B/S三层结构的,具备授课平台、实训平台、个性化自测平台、答疑平台的网络教学系统。     

基于三层结构的数据通道思想及其应用

通过分析、研究C/S、B/S和三层(多层)结构的特点,提出了一种基于三层结构的数据通道思想,并将数据通道技术应用到高校科研管理系统中。利用数据通道技术,Web用户不直接访问数据库,而是通过Web服务器来访问应用程序,通过应用程序的执行来访问数据库,从而提高了数据库的安全性。由于在Web服务器与数据库服务器之间不存在平台,只进行通信,因此实现起来简单、快捷。     

基于Web的在线学习与考试系统的设计与研究

本文研究并设计了一个基于WEB的网上学习与考试系统,该平台实现了便于教师＂考＂与学生＂学＂的,以学生为主体、教师为主导的,实现交互的网络学习与考试环境。本系统采用基于Web的B/S三层体系结构,是一个功能齐全、使用方便、高效实用的网上学习与考试系统,以适应新时期学习与考试的信息化、网络化。     

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。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。