运用EJB和XML实现灵活名册报表

针对现有报表生成系统可移植性差、灵活性不够以及不能全面支持分布式环境的问题,设计了分布式体系结构的报表系统,将报表定制、报表数据生成及绘制功能安排到不同类型的服务器以及浏览器上;在技术实现中,使用EJB(Enterprise Java Bean)开发应用程序,数据描述采用XML格式。系统实现了“灵活名册”、“灵活表格”的要求。     

基于XML技术的通用Web报表实现

本文针对Web报表结构和特点,通过自定义报表格式控制标签,运用XML技术进行动态编码生成XML报表文件,经客户端的.NET Framework对XML报表格式解析,实现了客户端精确打印报表的功能.     

基于XML的BOM生成系统

针对产品设计时零部件之间关系复杂、生成报表困难等问题,提出一种基于XML技术的物料清单(BOM)生成系统。用树状结构定义零部件之间的关系,采用XML文档存储各个零部件的信息和部件之间的结构关系。为保证产品数据在多个分散部门之间通过网络传输时的安全性,在建立产品数据库时对XML文档数据应用Rijndael算法进行加密,提高了系统安全。客户端对加密数据进行解密后,可以获得产品信息的完整XML描述,生成各种报表。该系统实际已应用于企业设计生产,取得了良好效果。     

B/S结构下复杂报表实现技术的研究

提出了B/S结构下基于XML的报表实现方案,解决了Web应用系统中报表样式不能灵活生成的问题。通过对实际项目中报表的结构进行分析,将报表的组成分为样式和数据两个部分,并用自定义的标记按照XML规范描述出这两部分信息,服务器端的解析器获得这两个XML文件后将报表信息解析出来并传给客户端进行显示。     

基于XML的电力生产报表生成系统设计

由于传统系统生成电力生产报表时间较长,文章提出基于XML的电力生产报表生成系统设计。采用B/S模式开发系统架构,由交互层、业务层、逻辑处理层以及数据层4个功能层次组成。在系统软件方面,利用指标、报表收集以及收集相关数据,并对其横向拉通;利用指标模型提取电力生产指标数据,并应用XML搭建生产报表模板,根据填充规则将指标数据填充到报表模板中生成生产报表。经实验证明,设计系统生成电力生产报表的时间较短,具有较好的可行性与适用性。     

基于ActiveX和XML技术实现的B/S环境下报表打印

本文针对B/S系统中无法在客户端实现复杂报表打印的问题,利用Delphi开发了一种ActiveX报表的打印控件.该ActiveX控件采用XML文件作为中间数据交换格式,并对XML文件进行格式解析,得到从服务器中响应回客户端的数据信息和控制信息,最终在客户端的打印机上实现打印输出.     

基于三层架构的工业报表系统设计

提出了按照数据访问层、领域逻辑层和表现层实现报表设计的体系结构.设计的OPC客户端,数据处理动态链接库和水晶报表显示前端分别对应于这三层结构.报表系统结构灵活,非常适合配合多种多样的工业控制系统使用.     

基于XML的报表系统的研究

本文首先简单地介绍了XML和XSLT技术,然后给出B/S结构的三层报表系统,并详细描述了关键的实现技术。通过客户端的需求,报表数据可以保存在本地磁盘,也可以以html、PDF等格式输出打印。     

报表系统中ETL通用框架的设计与研究

目前,随着企业信息的集成交换需求越来越频繁,使得大型报表系统研究中主要存在以下缺陷:前端数据源的分析处理能力低,导致报表生成和维护时间过长.文中在报表系统中引进了ETL技术对前端异构数据进行有效的汇总、分析和数据的抽取转换加载,缩短了报表系统中数据的处理时间,提高了报表生成的速度和效率,使得报表系统的通用化得到加强.同时引入了XML技术实现了抽取和转换规则的定义,使得ETL模块具备良好的通用性和可扩展性.     

基于XML的报务系统数据分发机制研究

分析了报务系统数据库记录备份与分发的需要,设计了报务系统数据分发功能模块,介绍了系统总体架构,提出了将数据库中的报务数据转换成适合在网络上传输的XML文件的设计,利用TCP/IP协议和套接字建立了基于客户端/服务器架构的网络通信模块,实现了数据分发的功能,重点分析了基于XML的数据处理过程和实现数据分发的网络通信架构.实验结果表明,该模块可以方便将报务数据在数据库表与XML文件相互转换.     

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.