应用ODBC和OLEDB的VC＋＋数据库编程技术

由于应用程序不能直接和数据源打交道,因此就产生了各种各样的数据库访问技术。通过以一个学生信息管理系统的开发为依托,详细论述了在VisualC＋＋6．0平台下通过ODBC技术和OLEDB技术,连接ACCESS和SQLSERVER数据库,并对数据库中的记录进行访问,以及实现记录的插入,删除,查找等功能,最后并对每种访问方式的效率做了初步评估,     

基于LABVIEW的在线故障监测系统与ORACLE的一种访问技术

LabVlEW在实现与数据库的接口不太方便,通过开发实例介绍了如何利用LabVlEW中提供的ADO技术并结合LabSQL实现与Oracle数据库之间的接口,从而方便地完成LabVlEW对数据库的访问,实现了实时的将设备信息与二进制数据写入数据库,多条件查询记录等功能。4     

基于ADO.Net的图书管理系统数据维护

该文通过对.Net架构中的ADO.Net模块的研究,介绍了具有普遍性的集中数据库访问技术以及断开连接数据库访问技术,并利用ADO.Net使用两种数据库访问技术来实现图书管理系统的数据维护。     

ADO.NET数据库访问技术在ASP.NET开发中的研究与应用

数据库访问技术是应用软件系统开发中非常重要的技术之一。以往应用软件对数据库的访问实现复杂,访问效率低。文中介绍了一种应用简单且数据库访问效率较好的数据库访问技术ADO.NET技术。详细介绍了ADO.NET数据库访问技术的对象模型组成,访问数据库的原理及一般操作步骤,最后通过一个具体的ASP.NET网站开发实例来说明了其应用。应用实例显示,ADO.NET数据库访问技术的应用简化了开发中数据库访问技术,提高了访问效率,同时还提高了数据访问的安全性。通过对此技术的研究与应用,希望能给相关的软件开发人员及数据库访问技术人员提供借鉴与参考。     

基于JDBC的SQL Server数据库访问

程序员经常在Java平台上利用JDBC访问数据库。本文介绍了JDBC。并通过JDBC-ODBC桥访问SQL Server2000数据库的实例,介绍了如何使用JDBC访问数据库的方法和技术。     

基于WebServices技术的数据库中间件

研究和分析了常用的数据库中件间技术,以及Webservices技术和数据库访问技术ADO.NET。针对目前数据库中间件的不足,利用Webservices技术设计了一种新的数据库中间件,并给出了其设计结构及应用实例,解决了通过统一接口访问不同数据库的问题。     

Visual C 中数据库访问技术对数据库字段类型的处理方式的探讨

本文针对数据库访问技术中数据库字段的几种常见类型：文本。数字、日期、货币、是／否, 探讨并总结了记录和窗体文本间类型转换的基本方法。     

基于ASP技术的Web数据库系统设计与实现

计算机网络已经深入到我们每个人的生活,同时与之密不可分的WEB数据库访问技术也随之不断地完善和提高,其中ASP技术正是这样一种趋于成熟的WEB数据库访问技术。ASP是一个位于服务器端的脚本运行环境,通过这种环境,用户可以创建和运行动态的交互式Web服务器应用程序,如交互式动态网页、网页信息处理、web数据库存取等等。分析了ASP技术并归纳了ASP访问WEB数据库的特点,介绍了ASP的工作原理及ASP的内置对象和组件,并着重讨论了ASP的数据库访问组件ADO,在此基础上给出了用ASP实现对Web数据库访问的应用实例。     

基于面向对象数据访问中间件设计与应用

随着信息化建设的发展,大量多媒体数据、图像数据和空间数据的出现使得数据库规模越来越庞大,应用需求越来越复杂,数据库系统需要处理的数据已不再是单一的数据结构,传统的数据访问方法对数据处理效率已渐渐不能满足需求,通过构建元数据库描述异地、异构数据源,予以面向对象的含义,通过数据对象表、对象属性表等数据表体现原关系数据库中数据记录间的面向对象关系．并结合面向对象技术设计实现了对象一关系数据访问中间件。     

基于面向对象数据访问中间件设计与应用

随着信息化建设的发展,大量多媒体数据、图像数据和空间数据的出现使得数据库规模越来越庞大,应用需求越来越复杂,数据库系统需要处理的数据已不再是单一的数据结构,传统的数据访问方法对数据处理效率已渐渐不能满足需求,通过构建元数据库描述异地、异构数据源,予以面向对象的含义,通过数据对象表、对象属性表等数据表体现原关系数据库中数据记录间的面向对象关系,并结合面向对象技术设计实现了对象-关系数据访问中间件。     

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。