基于EMIF架构的区域集成服务器(ZIS)的设计与实现

教育管理信息系统互操作规范(EMIF)旨在解决不同教育管理信息系统之问的信息资源共享和交换问题。在分析EMIF框架基础上,重点对EMIF框架中的区域集成服务器(ZIS)的功能需求和结构模型做了深入的研究,设计并实现了满足教育管理信息系统互操作规范的区域集成服务器,从而实现了不同教育管理信息系统之间的数据交换。     

EMIF框架中区域集成服务器的设计

介绍了一种实现教育信息共享与互操作的模型--教育管理信息系统互操作框架(EMIF)的基本概念,讨论了EMIF的框架及数据交换模型,系统分析了EMIF框架中的核心部件--区域集成服务器(ZIS)的功能需求,给出了其功能模型.对于ZIS中关键功能--报文处理,给出了基于消息服务、传榆、管理的实现机制及其算法流程,并给出了一种提供报文的处理流程实例.最后,简单地讨论了一个基于EMIF的校园网多系统实现区域互操作的体系结构.     

基于EMIF的高校校园网教育管理信息化系统互操作研究

随着网络技术的发展,高校的校园网教育管理信息化系统之间需要实现数据的共享和互访,但由于各系统由不同的公司开发,数据接口规范不一致,难以进行互操作.本文首先阐述校园网教育管理信息化系统的组成,分析了目前存在的问题,对EMIF体系构架进行了描述,提出了一个基于EMIF的高校校园网教育管理信息化系统解决模型.     

EMIF报文的有效性验证

在EMIF框架下,应用程序代理与ZIS通过EMIF规定的报文进行数据交换,报文是标准的XML文档.应用程序代理与ZIS接收到报文后,首先要验证该XML报文是否符合EMIF规范.本文根据EMIF规范构建了EMIF报文的XMLSchema文档,并给出了在.NET下实现报文有效性验证的算法.     

Delphi实现EMIF规范中XML报文的生成与解析

针对EMIF规范中XML报文处理，基于Delphi及XML Data Binding技术设计并实现了XML报文的生成与解析方法，为参照EMIF规范进行教育管理信息系统开发或利用Delphi进行XML相关开发的人员提供参考。     

高校校园管理信息系统数据共享的设计

在各类管理信息系统的开发过程中,有效实现各部门信息分系统数据共享是成功开发此类系统的关键环节.在分析高校校园管理信息系统的基础上,讨论了高校管理信息系统中信息共享模型,提出了实现信息共享的3种方案,即相同实体对象公共存储、基于对象规范化的共享方式、基于系统互操作框架（EMIF）的信息共享机制,分析了各自的特点和适用性.     

EMIF报文的加密与解密

讨论教育管理信息系统互操作框架(EMIF)下报文的加密和解密问题,并通过实例说明了在.NET下如何使用DOM编程接口技术、对称加密算法和非对称加密算法实现EMIF报文的加密和解密.     

企业研发联盟信息共享系统中混合云计算模型实例①

针对产学研联盟中研发信息共享问题,提出基于云计算模型的信息共享系统,通过对研发联盟中信息交互方式的分析,提炼出可重用服务实体,并基于web-service规范进行流程规划和实现。同时通过XML网关程序的设计,实现本地应用程序与云端服务之间的无缝集成,构成混合云计算模型。     

网络化制造关键技术信息流的研究

动态联盟各盟员间信息的集成与共享是实现网络化制造的基础和核心,针对分布、异构、异质网络化制造环境的特点,该文提出实现网络化制造信息集成与共享的总体解决方案:基于STEP标准信息的表达和产品的建模;基于XML、VRML信息的传输;基于ASP技术信息的存取;基于CORBA规范信息系统的集成和软件的互操作性。最终实现信息流在分布、异构、异质网络化制造环境中高效的传输,动态联盟各盟员间信息的实时共享。     

基于EJB和XQuery的异构数据集成技术研究

企业信息化的逐步深入,企业内部及企业之间存在着大量的异构信息的交互和共享,Java与可扩展的标记语言(XML)技术为实现网络环境下异构信息的交互提供了解决方案.提出应用Java的EJB和XML的查询语言XQuery技术建立适用于信息化的面向异构数据集成的框架结构,并对所涉及到的关键技术和实现方法进行了研究.     

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。