网络环境下流媒体技术在校园网络教学中的应用及其重要性

在校园网络环境日益成熟与流媒体技术的广泛使用的基础上,流媒体技术在校园网络教学中有着重要的作用,该技术将校园网络教学的各种潜能都充分发挥出来,从而达到更好的教学效果。文章将对校园网络教学中流媒体技术的运用加以分析,并指出流媒体运用的重要意义。     

基于P2P的流媒体技术在网络教学上的应用

随着网络及流媒体技术的发展,越来越多的远程教育网站开始采用流媒体作为主要的网络教学方式。利用流媒体技术为网络教学服务,提高网络课堂的质量,增强网络课堂的交互性,已经成为远程网络教育发展的必然趋势。基于P2P的流媒体技术已经逐步取代了传统的流媒体模式,带给流媒体业务以巨大的冲力,远程网络教学的流媒体技术也必然采用P2P模式。该文主要探讨基于P2P的流媒体技术在网络教学中的应用。     

流媒体技术在网络教学平台的应用研究

流媒体技术的发展,促使网络课堂的教学形式变得活泼生动,教学的互动性也得到进一步的加强。本文主要讨论网络视频课程分直播教学、网络视频课程的点播教学以及流媒体网络课件的使用等三种形式,并且指出流媒体技术运用在网络教学中的问题及解决方法。     

基于流媒体技术的校园网络教学

流媒体技术被称为即时观看的技术,它解决了网络教学等应用中的多媒体信息传输问题。本文介绍了流媒体相关技术及特点,并对流媒体技术在校园网络教学中的应用做了有益的探讨。     

基于流媒体技术的网络教学系统的设计与实现

介绍了流媒体技术的相关知识,针对现在流行的网络教学给出了一个完整的基于流媒体技术的网络教学系统的设计与实现方案.实现了流媒体播放与内容显示的同步以及流媒体文件播放过程中进度的随意跳转,使学生在学习时能真正感受到网络教学的便利.     

基于流媒体技术的网络教学系统的设计与实现

介绍了流媒体技术的相关知识,针对现在流行的网络教学给出了一个完整的基于流媒体技术的网络教学系统的设计与实现方案。实现了流媒体播放与内容显示的同步以及流媒体文件播放过程中进度的随意跳转,使学生在学习时能真正感受到网络教学的便利。     

流媒体技术在网络教学中的应用探讨

本文介绍了流媒体技术的基本概念,分析了流媒体技术在网络教学应用中的优势和现状,并提出了一个基于流媒体技术的多媒体网络教学系统。     

流媒体技术在高职院教学中的应用

随着计算机网络技术和多媒体技术的发展,流媒体在教学中的应用越来越广泛,本文介绍了流媒体和流媒体技术的基本概念,并给出了流媒体技术在高职院教学中如课件点播教学、实时同步教学、精品课程建设、考试监控、视频会议等方面的应用。     

流媒体技术在网络教学中的应用

流媒体技术的应用在现代教育中越来越广泛。本文介绍了流媒体的概念、流媒体技术及其传输方式,并阐述了网络环境中的流媒体技术在教学中的应用,最后说明了流媒体课件的制作方法。     

流媒体技术及其在网络教学中的应用

Internet的迅猛发展和普及为流媒体业务发展提供了强大的市场动力,流媒体业务正变得日益流行.流媒体技术广泛用于多媒体新闻发布、在线直播、网络广告、电子商务、视频点播(VOD)、远程教育、远程医疗、网络电台、实时视频会议等互联网信息服务的方方面面.特别是在教育领域,流媒体技术已经成为通过网络进行多媒体交互教学的最基本的技术之一.随着网络及流媒体技术的发展,越来越多的远程教育网站开始采用流媒体作为主要的网络教学方式.正因为这个原因,利用流媒体技术为网络教学服务,提高网络课堂的质量,增强网络课堂的交互性,必将成为今后远程教育发展的一个重要课题.本文主要从流媒体技术及其在网络教学中的应用方面进行简单的探讨.     

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.