基于Web数据库应用研究

本文介绍Ｗｅｂ数据库应用在Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ网络建设中的实现技术,并着重介绍了Ｐｌｕｇ－ｉｎ,ＡｃｔｉｖｅＸ控件及ＡＳＰ等解决企业ＷＷＷ服务的编程方法,结合企业Ｗｅｂ数据库应用的实际开发,给出了解决企业ＷＷＷ服务的一种实施方案。     

Web服务器与数据库的连接——通过IS2.0WebServer的IDC访问数据库

目前有些Ｗｅｂ服务器产品已具备了与数据库连接的能力，将Ｗｅｂ服务器同本单位的数据库相连以提供多种服务正成为Ｗｅｂ应用的一个发展趋势，ＩＩＳ就是这样的Ｗｅｂ服务器。介绍了Ｗｅｂ服务器与数据库连接的基本原理及通过ＩＳ２．０Ｗｅｂ服务器的ＩＤＣ访问数据库的有关技术。     

基于组件的Web数据库互连研究

文章回顾了传统的Ｗｅｂ与数据库互连技术,对基于ＣＧＩ、ＡＰＩ和ＪＤＢＣ的互连方法进行了介绍和评价。在此基础上,重点研究了基于ＣＯＭ、ＣＯＲＢＡ组件的Ｗｅｂ数据库互连技术及应用前景。     

用 ActiveX 技术开发 Web 数据库应用

介绍ＡｃｔｉｖｅＸ技术开发Ｗｅｂ数据库应用的３层客户／服务器服务模型、Ａｃ－ｔｉｖｅＸ技术遵循的组件对象模型标准（ＣＯＭ）及ＡｃｔｉｖｅＸ技术概要。通过ＶＢ５开发的应用实例说明ＡｃｔｉｖｅＸ开发Ｗｅｂ数据库应用的具体技术     

基于Web.sql实现WWW动态访问数据库

本文从ＷＷＷ动态访问关系数据库的角度入手，探讨了现有Ｃ／Ｓ结构的延展－标准的“瘦客户机”结构，实现了基于Ｗｅｂ．ｓｑｌ的ＷＷＷ数据库综合信息查询系统。     

Delphi在网络数据库中的应用

ＣＧＩ是最早生成动态网页的方法，几乎所有的Ｗｅｂ服务器都支持它，由于ＣＧＩ程序是作为独立的外部应用程序来执行的，它要与服务器上的其他程序竞争系统资源，从而降低了服务器运行的效率。另外，使用ＣＧＩ开发Ｗｅｂ应用时要求程序员不仅要掌握ＨＴＭＬ语言，而且还要精通具体的某个编程语言。Ｄｅｌｐｈｉ是针对ＣＧＩ效率低的缺点提出来的，它通常以动态链接库的形式出现，是驻留在Ｗｅｂ服务器上的程序， Ｄｅｌｐｈｉ技术执行程序的效率要大大优于ＣＧＩ技术，而且开发起来也要相对简单一点。 Ｄｅｌｐｈｉ中提供了数据库引擎ＢＤ…     

基于Web的信息系统的开发

文中分析了基于Ｗｅｂ的信息系统的基本特征，总结了用来开发Ｗｅｂ信息系统的几种主要技术：ＣＧＩ、Ｗｅｂ与数据库的连接、Ｊａｖａ等。最后，介绍了一个基于Ｗｅｂ的信息系统的开发实例。     

CGI技术与ISAPI技术性能比较

本文主要介绍两种Ｗｅｂ数据库技术－ＣＧＩ技术和ＩＳＡＰＩ技术,分析了二者的实现原理,研究,探讨和比较了ＣＧＩ和ＩＳＡＰＩ的技术性能。     

基于Web的企业级应用系统开发

从开发基于Ｗｅｂ的应用系统的关键问题－如何把Ｗｅｂ和数据结合起来入手，阐述了公布式运算结构和Ｗｅｂ应用系统结构，提出了Ｏｒａｃｌｅ公司的Ｗｅｂ解决方案，并在此基础上着重分析了ＯｒａｃｌｅＡｐｐｌｉｃａｔｉｏｎＳｅｒｖｅｒ４．０的结构，特点和发过程。     

Intranet／Web技术与数据库信息管理系统开发

介绍Ｉｎｔｒａｎｅｔ／Ｗｅｂ技术有相关知识，重点探讨了基于Ｉｎｔｒａｎｅｔ／Ｗｅｂ技术的数据库信息管理系统开发的发展与方向。     

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.