应用中间件开发高端服务软件

中间件技术是软件产业中一个热门话题,是应用软件系统集成的关键技术。本文从构件在现实软件发展中的地位展开,分析了中间件在系统组织层次中所起的作用,阐述了构件化思想对中间件本身的促进作用,并以ERP系统的中间件开发框架为例提出了一种构件化中间件的发展模式。     

关于构件技术与中间件关系的探讨

本文从构件在现实软件发展中的地位展开,分析了中间件在系统组织层次中所起的作用,阐述了构件化思想对中间件本身的促进作用,提出了一种构件化中间件的发展模式。     

中间件技术在移动增值领域的设计与实现

中间件是构件化软件的一种表现形式，中间件抽象了典型的应用模式。以一个移动增值平台为例，阐述构件化中间件系统的基本技术及在移动增值领域的应用。通过移动中间件在实际应用系统的具体设计与模块实现，设计一种基于数据库为中介的通用移动增值服务平台，并具体分析中问件满足快速开发和增强系统稳定性的优点，以及在增值领域开发还需要关注的问题。阐述了用移动中间件建立通用移动增值服务系统的必然性。     

中间件技术在移动增值领域的设计与实现

中间件是构件化软件的一种表现形式,中间件抽象了典型的应用模式.以一个移动增值平台为例,阐述构件化中间件系统的基本技术及在移动增值领域的应用.通过移动中间件在实际应用系统的具体设计与模块实现,设计一种基于数据库为中介的通用移动增值服务平台,并具体分析中间件满足快速开发和增强系统稳定性的优点,以及在增值领域开发还需要关注的问题.阐述了用移动中间件建立通用移动增值服务系统的必然性.     

分布式对象中间件技术研究

中间件是处于操作系统和应用层之间的一个软件层，由于它可以简化基于分布式系统的开发应用，成为目前软件工程中的热点。在对中间件简单概述基础上，讨论了分布式对象中间件的层次结构和发展现状，最后通过对目前主流分布式对象中间件技术的分析和比较，从4个方面给出了中间件技术的发展趋势，它们是接口的标准化、体系结构的构件化、开放化和可配置化以及使用的简单化。     

浅析电子商务中间件

概述了电子商务中间件的内涵，从电子商务中间件的市场需求、构架及其构件化开发设计，阐述了电子商务中间件是实现电子商务的关键支撑技术。     

构建基于可重构技术的畜牧养殖业企业级互联网应用平台

采用面向中间件＋组件的可重构技术，建立基础构件库，开发各个层次的中间件，以及构架一个应用框．提供了一个“构件化、平台化、开放化”的畜牧养殖业互联网应用基础平台。     

基于EFL中间件平台的嵌入式灵活安全系统

随着嵌入式系统的广泛应用,系统安全问题已经成为一个急需解决的问题。针对嵌入式系统功耗和性能均衡等方面的特点,基于EFL中间件平台实现了自适应的灵活安全中间件。该系统基于EFL中间件技术和和欣操作系统,提供了一个可灵活配置的构件化安全系统来解决嵌入式系统的安全问题。     

基于软件中间件技术的MATLAB-LabMap分布式控制架构研究

实际工程中，很多控制系统不是集中在某个特定的地方。输入和输出操作分别在分布式系统的不同节点进行。同样地，控制行为不仅能跟本地的输入输出绑定，也能跟远端的输入输出绑定，甚至实现分布式控制。软件中间件技术能应用到整个系统的各个部分，提供了分布式数据访问、系统软硬件集成等。LabMap就是自动控制领域的一种软件中间件。LabMap将应用层从硬件层抽象出来，将硬件层从应用层剥离出去。LabMap的另一个重要优点是提供大量软硬件构件的无缝集成，及构件化的软件设计。     

ConUp:一个支持构件动态更新的SCA中间件系统

中间件已经成为网络环境下构建复杂应用系统的核心基础支撑软件。Internet的发展促使应用环境从封闭、静态转变为开放、动态,这就要求中间件上的应用具有动态更新的能力。业界广泛应用的中间件多支持构件的热部署,但不能自动保证系统的一致性。ConUp是一个基于Tuscany的SCA中间件系统,它通过对构件间动态依赖的管理来保证构件动态更新后系统的一致性。本原型演示将展示ConUp的中间件上的构件进行动态更新的过程,它对多种动态更新算法、策略的支持,及其在动态更新安全性、及时性和低干扰性方面的优势。     

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.