基于Struts的Web系统构建

在Web系统设计中,随着业务逻辑的越来越复杂,如何提高Web系统的执行效率、可复用性、可扩展性、可维护性,降低构建和维护成本,一直是一个关键问题。近几年来,基于可重用的Framework技术逐渐成为业界研究和应用的新趋势。其中,Struts框架实现了MVC架构,提供了一种快速高效的构建Web应用程序的方法。运用Struts技术,可快速构建一个结构清晰、可复用、可扩展的Web系统。     

基于Struts2＋Spring＋Hibernate架构构建Web应用系统

采用Struts2+Spring+Hibernate架构可快速构建Web应用系统,并且能使得系统结构清晰,同时具备很好的可扩展性和可维护性,大大提高了Web应用系统的可重用性.本文介绍了Struts2、Spring、Hibernate 3个开源框架,并将其整合起来应用于Web应用系统系统中.     

一种适合快速开发行业应用的Web框架

针对行业应用,本文基于Struts框架技术,通过剪裁和扩充Struts框架,构建了一个适合于快速开发行业应用的Web框架。该框架结构清晰、配置灵活、可扩展性好、易于学习与使用。框架的稳定性、高效性及可重用性已经通过实际项目的检验。     

基于Struts与AJAX的Web交互模型的研究

Struts框架经过数年的发展,已经成为程序员开发J2EEWeb应用程序的一种事实上的标准。AJAX是一项新兴的Web表示层技术,可以构建动态、快速、灵活的Web应用程序。通过对两种技术的研究和分析,归纳出一种将AJAX引擎嵌入Struts框架的Web交互模型,并以数据校验实例的开发流程和实现方法对模型加以阐述。     

基于Struts框架的Web表单快速开发平台*

首先简要介绍了MVC设计模式和目前的Web应用框架,以及基于MVC模式发展出的Struts Web应用框架,分析了它们在开发基于Web表单应用上的不足。介绍了在Struts框架基础上,通过开发一个可视化的Web表单编辑器,以支持Struts应用的快速部署,并提出了一个表单引擎的概念,从表单开发到表单实例数据处理构建了一个完整的快速开发平台,基于此平台可以大大缩减传统Web开发的周期。     

基于MVC模式的STRUTS框架的研究与应用

一个好的软件设计框架能有效的理清系统结构，降低系统复杂度。基于MVC模式的Struts框架，对复杂的Web应用系统开发是较为理想的系统构建方式。文章结合笔者开发大型国资管理系统的实践，介绍Struts框架的体系结构以及基本设计思想．同时给出一个用户登陆实例，介绍了如何利用Struts技术开发基于MVC的Web应用。进一步揭示了Struts是一个高度可配置、高度扩展性的框架，并特别指出Struts框架在开放大型Web应用方面发挥的优势。     

基于Struts框架的国资管理系统的研究与设计

结合笔者开发大型国资管理系统的实践，首先介绍Strurs框架的体系结构以及基本设计思想，重点分析了该国资管理系统的整体设计架构，并给出利用Struts框架构建该Web应用的详细设计。进一步揭示了Struts是一个高度可配置、高度扩展性的框架，并特别指出Struts框架在开放大型Web应用方面发挥的优势。     

基于Struts框架实现Web系统的管理员权限

在构建Web系统的的技术中,Struts框架是构建Web系统最有效的技术之一。Struts是基于Servlet,Jsp以及标签库技术的一个实现良好的MVC框架,在一个完善的Web系统中,必然要拥有管理员,以实现不同的用户拥有不同的权限,本文阐述了在Struts框架下如何实现对用户权限的分配和管理。     

基于Struts+Spring的Web应用设计与实现

集成Struts、Spring框架技术构建基于J2EE的Web应用可以提高J2EE项目的可重用性。本文介绍了两种流行的开源框架技术Struts和Spring的原理,并将这两种框架技术整合起来应用到实际的Web项目开发中去,从而提高项目代码的复用性及项目开发的效率。     

一种基于MVC模式的PMT系统研究

在Web系统设计中,如何提高Web系统的执行效率、可复用性、可扩展性、可维护性,降低构建和维护成本,一直是业界普遍关注的焦点。而基于可重用的FrameWorks技术已成为业界研究和应用的新趋势。系统运用Struts技术,快速构建了一个结构清晰、可复用、可扩展的轻型Web系统。用以协调各个开发小组在产品开发过程当中的整体开发进度,各个开发小组的管理员可以查看其他小组的工作进度以及可以在系统上对自己小组的工作进度进行更改和删除。利用这些技术来构架一个简单Web应用系统-产品开发管理系统,并在WebForm技术实现、代码复用等方面做了一些有益的尝试。     

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.