C/S和B/S在舰船技术保障中的应用研究

分析了两层、三层客户端/服务器(C/S)和三层浏览器/服务器(B/S)3种信息系统体系结构,在此基础上提出了一种基于三层C/S、B/S混合模式的舰船技术保障信息系统体系结构模型,并对该结构模型及其特点进行了分析和总结。该结构克服了两层C/S、三层C/S和三层B/S体系结构的不足,以便更好地发挥C/S和B/S体系结构的特性和优势。     

基于流程图的设备管理系统的设计与实现

在分析现有设备管理系统的基础上,为满足企业设备管理直观性和高效性的需求,设计并实现了1种基于流程图的设备管理系统.采用面向对象的分析方法、快速原型模型以及B/S与C/S相结合的3层体系架构进行系统设计与开发,并利用GDI+实现流程图绘制功能.多处应用设计模式如抽象工厂模式、命令模式等,提高系统的可扩展性和可维护性.针对企业基于流程图进行设备管理的实际需求,为企业提供更直观、便捷、高效的设备管理.     

基于B/S的多层分布式结构应用

通过分析B／S结构和C／S结构的特点，提出C／S结构的局限性，列出B／S结构的优越性，指出B／S结构已成为多层分布式Web应用的趋势，并且以一个实际的电厂项目的例子来具体说明采用B／S三层结构的好处。     

数据库应用系统的体系结构及在Delphi中实现

为了更好的考虑在开发数据库应用系统时采用何种体系结构,文章分析了数据库应用系统的几种常用体系结构,讨论了这些结构在Delphi中的实现,并举例进一步说明了如何用Delphi实现多层B/S体系结构。同时指出多层B/S体系结构是今后数据库应用系统的发展方向。     

数据库应用系统的体系结构及在Delphi中实现

为了更好的考虑在开发数据库应用系统时采用何种体系结构,文章分析了数据库应用系统的几种常用体系结构,讨论了这些结构在Delphi中的实现,并举例进一步说明了如何用Delphi实现多层B/S体系结构.同时指出多层B/S体系结构是今后数据库应用系统的发展方向.     

实验设备管理信息系统的实现

本文提出并实现了一个B/S模式的高校实验设备管理信息系统;本文首先介绍了采用.NET框架的多层体系进行系统的总体构架设计,接着阐述了在.NET平台下利用工作流技术以及Webservice技术对系统的实现,最终实现了高校实验设备管理的信息化、网络化。     

基于WCF的信息系统结构模型与体系架构的研究与设计

该文在分析和研究了WCF原理特性的基础上结合作者多年的ERP系统架构与实现经验,提出了一种基于WCF的分布式的信息系统的结构模型(B/S/S与C/S/S模型结构),并基于此模型结构设计了一种多层的分布式软件体系架构,该结构模型与体系架构有着更好的灵活性、安全性、可扩展性,并且该架构模型和体系架构支持多种网络终端设备。     

实验设备管理信息系统的实现

本文提出并实现了一个B／S模式的高校安验设备管理信息系统；本文首先介绍了采用．NET框架的多层体系进行系统的总体构架设计，接着阐述了在．NET平台下利用工作流技术以及Web service技术时系统的实现，最终实现了高校实验设备管理的信息化、网络化。     

实验室信息管理系统的设计与实现

通过分析B/S结构的特点,提出了基于B/S结构实验室信息管理系统的基本设计思想,重点介绍了系统中的用户管理、设备管理、实验人员管理等功能模块,可为实验室实现自动化网络管理提供参考。     

基于三层C/S结构的城市地质环境信息系统

分析了传统C/S结构、B/S结构、三层C/S结构各自的优缺点，并进一步分析了基于GIS的地质环境信息系统采用三层C/S体系结构开发的必要性。同时以义乌市城市地质环境信息系统的开发为例，采用面向对象的开发方法和组件式技术，从分析、建模、设计、编码等各个角度对基于三层C/S体系结构的地质环境信息系统进行了阐述。     

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.