基于Web Services企业应用集成的设计与分析

企业应用集成（EAI）是整合企业内外部不同应用系统间信息和业务流程的解决方案。Web Services是一种面向服务的技术架构,其突出优点是实现真正意义上的平台独立性和编程语言独立性。参考已有的企业应用集成产品,将它们原有自行设计的跨平台的数据传输、变换及解释模块和跨应用的业务流程模块用Web Services架构中的SOAP,WSDL,UDDI和WSFL等技术替换而形成一个新的企业应用集成模型,并研究了该模型的工作原理及所面临的挑战。     

基于Web Services的装备保障信息系统集成架构的研究

该文分析了当前我军装备保障信息系统集成的现状及存在的问题,介绍了Web Services技术的设计思想。通过分析当前企业应用集成的一些关键技术,借鉴已有的企业应用集成模型及平台的研究成果,总结出了一种基于Web Services技术的集成架构模型。     

基于Web Services的企业集成应用系统研究

随着企业的发展,企业应用集成是一个迫待解决的问题。传统的企业应用集成方法基于各自的标准,在传输、数据定义、访问模型等机制方面均不相同,造成各自的应用仍难以互相连接。通过对Web Services模型的分析,文中论述了一种基于Web Services的企业应用集成系统模型,介绍了企业应用集成的三个重要层面——数据集成、应用系统集成和业务流程集成,并对前两个层面进行了深入讨论和分析。     

融合电信网络和企业应用的统一业务体系研究

从通用分布式中间件和业务流程自动化两个角度剖析了Web Services技术，指出目前用以实现分布异质企业应用即时和自动集成的Web Services技术、与实现电信网络资源对第3应用开放的Parlay API技术存在结合点。进一步提出了结合二者、能够统一整合电信网络资源和企业应用资源的业务体系，该体系具备统一资源整合、业务逻辑即时集成、业务流程自动化的优点，有望从中产生下一代杀手业务。     

基于SOA架构的企业应用集成技术研究

本文介绍了面向服务的体系架构SOA、及其结构模型,针对目前企业应用集成面临的问题,提出了一种面向服务的企业信息集成模型,介绍了面向服务架构的基本概念、基本工作原理,以Web Services为主要技术,提出了一种基于SOA的企业应用集成框架,利用SOA架构面向服务的思想和ESB总线技术给出实现企业应用集成的解决方案,并以此提出了一种新的面向服务的企业应用集成模型。该模型对企业应用系统采用封装的方法,保证了应用系统在集成平台中仍保持原先的安全稳定性。     

基于Web Services的企业应用集成平台模型

随着企业的发展,企业应用集成是一个迫待解决的问题。由于传统的企业应用集成方法基于各自的标准,在传输、数据定义、访问模型等机制方面均不一样,因此各自的应用仍然不容易互相连接。Web Services由于具有开放和跨平台特性,为企业应用集成提供了一种全新的机制。本文通过对Web Services实现模型的分析,提出一种基于Web Services的企业应用集成平台模型。     

基于Web Services的企业应用集成方案

介绍了Web Services技术及其体系结构。给出了遗留系统Web Services封装与实现方法以及基于Web Services架构实现企业信息共享的实例。实践表明,基于Web Services的企业应用集成方案,增强了系统间集成的方便度,降低了更新维护的成本和难度。     

基于Web Services的企业应用集成方法研究

企业应用集成是实现企业信息系统间集成的有效解决方法。分析了传统的和基于Web Services的企业应用集成方法,指出基于Web Services的企业应用集成是未来的发展趋势。利用Web Services技术,建立了企业应用集成框架,并在J2EE平台上实现了该集成框架,最后给出了具体的企业应用集成实例。     

J2EE平台上基于Web服务企业应用集成的研究

分析了传统点对点集成方案和中间件集成方案两种企业应用集成(EAI)架构的优缺点,阐述了Web Services(Web服务)给企业应用集成带来的革命性的变化以及Web Services在目前的技术条件下所不能解决的问题,提出了面向对象中间件基础上的Web服务集成方案并以J2EE为平台给出了一种全新的、面向服务层的、松耦合的企业应用集成框架,给出了实现该框架的原型系统,并展望了Web服务技术成熟后该框架的扩展。     

基于Web Services的企业应用集成模型

Web Services面向服务的体系结构和低成本开发优势使得它的应用变得越来越普及。相对于传统的企业应用集成解决方案,基于Web Services的集成方案能够敏捷和快速地实现异构系统的企业应用集成,它已经成为目前EAI领域的主流。提出了一个基于Web Services的企业应用集成模型,它实现了企业内部、跨互联网的企业间异构系统的松耦合集成。     

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.