外军军事信息系统体系结构框架技术概述

体系结构框架是一种用于指导信息系统体系结构开发、描述、集成的统一规则和指南,是提高军事信息系统之间互联、互通、互操作能力的关键。世界各国正相继推出适合本国国情的体系结构框架并将此作为开发、描述和理解军事信息系统的指导和准则。文章总结了军事信息系统体系结构框架的发展概况,详细论述了美军信息系统体系结构框架研究的最新进展,重点分析了美军国防部体系结构框架2．0版的新变化和特点、体系结构视角和描述模型,并简要介绍了其他国家体系结构框架的研究情况。最后在分析各国体系结构框架的基础上,针对我军自身的军事特点,提出了对我军体系结构建设的启示。     

信息系统集成一体化运营研究

随着互联网信息技术的发展,信息系统集成涉及的产品、供应商以及服务项目等越来越多,强调利用各类硬件、软件进行集成整合,实现信息系统集成一体化、功能一体化与应用一体化。当前企业信息系统呈多样化发展,但信息系统与管理脱节问题依然突出,通过对零散系统的有机整合与集成,能够建立一套与管理需求相适应的一体化运营系统。基于此,针对传统信息系统信息过剩、功效不足、运行不稳定等问题,设计了信息集成一体化运营系统,从集成架构技术与业务功能两个方面探讨了信息系统集成一体化运营的实现。实践表明,该系统能够降低人工成本,缩短故障在线处理时间,降低投诉率。     

电子政务信息资源库建设研究

目前,电子政务系统几乎都是彼此隔离的信息系统,如何集成系统内各应用系统和数据资源,架构一个统一电子政务平台,实现资源共享,成为提高电子政务整体应用水平的关键.讨论了电子政务数据集成平台系统的设计和应用,系统基于WebService体系结构,利用Oracle10g强大的数据集成和管理能力,通过全面集成各种格式的数据和分散的业务系统,基于政务信息资源库,解决了政府部门之间信息系统难以一体化的问题。     

基于原语-模式的体系结构作战活动模型建模方法

为了理解、比较和集成由不同框架、不同工具及建模方法开发的体系结构,更好地支持以数据为中心的体系结构开发策略,提出了基于原语-模式的军事信息系统体系结构建模方法;依据XML的模型转换实现,重点研究了基于建模原语-模式的体系结构元模型与建模方法之间的语义映射规则;基于国际国防企业体系结构规范构建了作战活动模型(OV-5)的元模型,分别研究了OV-5的IDEF0建模和UML活动图建模的具体实现,构建了IDEF0及UML活动图与OV-5元模型数据元素严格的语义映射规则,规范了体系结构建模方法并保证了体系结构语义的精确性和一致性。     

智慧矿山异构数据集成平台设计

针对智慧矿山建设过程中现有信息系统存在数据源异构问题,提出了利用XML技术建立异构数据集成平台的解决方案,介绍了智慧矿山总体框架和异构数据集成平台的体系结构。在不改变现有数据源的物理位置、体系结构的情况下,该平台利用XML技术将异构数据无损转换为XML文档,通过对智慧矿山安全生产决策的应用需求的分析、分解和转换,实现了异构数据源的有效集成,为智慧矿山的监测、管理、职能决策等服务提供数据支撑。     

电子政务信息资源库建设研究

目前,电子政务系统几乎都是彼此隔离的信息系统,如何集成系统内各应用系统和数据资源,架构一个统一电子政务平台,实现资源共享,成为提高电子政务整体应用水平的关键.讨论了电子政务数据集成平台系统的设计和应用,系统基于Web Service体系结构,利用Oracle 10g强大的数据集成和管理能力,通过全面集成各种格式的数据和分散的业务系统,基于政务信息资源库,解决了政府部门之间信息系统难以一体化的问题.     

指挥信息系统企业级体系结构描述方法研究

为了明确指挥信息系统企业级体系结构的概念和内涵,并规范企业级体系结构的描述,提出了一种指挥信息系统企业级体系结构描述方法.首先从定义、作用以及特点等角度研究了指挥信息系统企业级体系结构的基本概念;其次提出了一种指挥信息系统企业级体系结构的描述框架,研究了该框架的视角组成、视角之间的相互关系以及视角的产品组成;最后,提出了一种面向对象和描述逻辑相结合的企业级体系结构产品描述方法,并提供了相应的描述示例.     

基于CIMS的水利枢纽体系结构及集成调度系统

在水利枢纽群及中小流域中，应用基于CIMS的体系结构和信息系统集成技术，集成防洪及水资源调度系统是一条有效的技术途径。以安徽省茨淮新河工程为例，阐述了基干CIMS的体系结构的基本框架与集成技术在防洪及水资源调度决策支持系统中的研究与应用。     

虚拟组织信息系统动态集成研究

虚拟组织信息系统是一种分布性、柔性、开放性能够快速适应组织变化与发展的动态集成系统。提出了基于SOA体系框架来构建虚拟组织信息系统,分析了虚拟组织从组建到解散的动态集成过程框架。应用Web Services技术设计了一个虚拟组织信息系统动态集成应用系统,具有了用户访问系统、动态业务构建器、UDDI注册服务系统和信息管理工具等功能。最后给出了虚拟组织信息系统动态集成在图书馆信息资源共享服务项目中的应用实例。     

基于SOA的军事信息系统集成研究

为了使分布式军事信息系统能够适应实现技术、部署位置和操作流程等不确定因素,提出了一个基于SOA的柔性分布式系统集成框架。首先对SOA进行了概要阐述,进而提出军事信息系统集成要求,最后给出了系统集成框架。框架基于SOA架构、组件化思想,采用web技术实现服务封装;使用服务总线实现服务的集成和交互;利用动态加载和实时配置的方法对服务进行管理。实践表明,框架满足在分布式环境下,跨地域、跨平台的异构军事信息单元的集成和交互。     

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.