基于FastReport的通用报表系统的设计与实现

为了满足报表的灵活性、可维护性等要求,针对当前MIS中传统报表工具的不足,从系统的设计思想、数据结构和功能结构三个方面阐述了通用报表系统的系统设计,并利用Delphi和FastReport实现了报表的用户自定义、报表的网络化管理以及报表的动态生成等功能.     

一种基于单数据源的可视化自定义报表模型

通过一种新的可视化定义报表方法,用户可根据需要灵活定义报表样式,并利用XML实现动态创建数据表;在此基础上配置数据源及其字段与报表单元格间的关系,系统将据此自动拼装出相应的SQL,从而快速生成满足用户需求的各类基于单数据源的报表,并可对生成的报表进行预览和导出到Excel文件。最后,在重庆交通运输(控股)集团中的实际应用表明,这种新的可视化自定义报表方法能快速适应报表变更需求,大大提高了工作效率,并保护了用户的投资。     

基于Web应用的复杂报表的实现

在分析Web应用系统中复杂报表处理难的基础上,提出了一种基于.NET环境的动态生成复杂报表的实现方法。首先介绍了报表设计工具与复杂报表的特殊需求,接着给出了在分级管理的系统中如何直接生成复杂报表的具体算法,起到了优化用户统计效果的作用。     

基于Pro/E二次开发的多视图BOM生成与管理研究

BOM管理是实现企业信息集成的核心内容.介绍了Pro/Toolkit的对象模型及其使用方法.定义了BOM元的数据结构.基于Pro/Toolkit访问Pro/E的图形数据库提取产品零部件的属性信息和层次关系信息生成基础BOM.设计了多视图BOM映射过程中的BOM元操作,并给出了以基础BOM为单一数据源的多试图BOM映射方法.介绍了多视图BOM生成与管理系统的开发和应用,实践结果表明,该系统可有效提高企业信息系统的集成度.     

面向程序开发人员的通用报表工具的研究

本文提出了一种面向程序开发人员的通用报表工具,实现直接从数据库中提取数据,并降低报表定义难度,从而提高开发效率和系统性能。着重分析了报表设计器和报表生成引擎的实现过程,并给出了调用报表工具的方法和定义报表模板的实例。     

基于XML的数据交换中间件的研究与实现

使用XML分别表示数据的结构信息和值信息,通过对数据结构文件和用户定义的规则文件进行分析生成映射文件,从而解决数据冲突.在此基础上,设计实现了一个基于XML的数据交换中间件(XDEM)系统.系统将数据交换处理流程与处理方法相分离,用户可以定制开发不同的处理插件,以满足交换过程的动态配置.这些极大地增强了系统的适应性和扩展性.     

面向信息系统的柔性报表系统的逻辑模型设计

针对信息系统的报表系统不能适应需求变化的问题,分析了报表系统共性和变性,提出了柔性报表系统的框架结构和层次逻辑模型,描述了柔性报表系统中数据域、信息域、映射以及与操控平台和制作平台之间的关系.柔性报表系统由报表系统操控平台和报表制作平台构成,开发人员和分析员利用操控平台设置和定制特定信息系统的报表制作平台,用户利用报表制作平台定义和生成需要的报表.     

基于Excel的电力监控通用报表系统的设计与实现

中低压电力监控系统是一个实时数据监控系统,要求能根据用户的实际需要制定报表,而其报表系统一般都采用传统的设计方法。这种设计主要存在两方面的问题：一是仅仅可以满足用户的静态需求;二是其设计一般采用开发环境自带的一些报表工具,而这些报表工具一般又只能实现规则的报表定义。本文针对电力监控中传统报表设计存在的这这些问题,给出了利用OLE与VBA相结合对EXCEL实现控制的一种面向用户的报表实现技术,使组态人员能定制报表格式和报表内数据元素,最终可以形成满足用户动态需求的各种样式的规则报表和不规则报表。     

基于Silverlight的柔性生产报表系统的设计

针对流程工业管理信息系统中报表系统灵活性差的问题,提出了一种基于Silverlight的柔性报表系统的设计方法.该方法采用Silverlight技术在客户端实现用户表现层和业务逻辑层功能,利用XML技术将报表样式与报表数据分离,通过自定义XML标签实现报表的灵活配置,采用Web Service技术实现客户端与服务器端之间的数据交互.给出了柔性生产报表系统架构与实现方法,在.NET平台下设计了由报表柔性编辑模决、报表生成模块和报表显示模块等组成的柔性生产报表系统.实际应用表明,采用Silverlight技术开发的柔性生产报表系统能够实现报袁的灵活生成.     

VRML可视化编辑器的研究与开发

对虚拟现实建模语言VRML可视化编辑器进行了研究,设计并实现了VRML可视化编辑器VisualVRMLEditor.构造了一个节点树视图,描述VRML文件的内部数据结构;构造了一个三维场景视图,显示了VRML文件所描述的三维场景;构造了一个路由视图,将路由这种无形的机制进行可视化编辑.实现了将节点树视图和三维场景视图结合起来,方便用户操作.此外,将路由这种无形的信息可视化,使用户能够进行可视化编辑路由,不用记住繁琐的VRML语法规则,提高了编辑VRML文件的效率.     

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.