基于多Agent 可互操作知识化制造动态自适应调度策略

针对知识化制造系统生产环境的不确定性,构建一个基于多Agent可互操作的知识化动态调度系统.该系统对各种调度问题采用具有一系列问题特征的知识表示,利用Agent技术构建基于问题的功能模块,提出一种基于改进 -学习算法(WSQ)的自适应调度机制,以此指导设备Agent在动态环境下的调度策略选择.通过对其进行复杂性分析和仿真实验,验证了该控制策略的有效性.该系统具有自适应和自学习特征,具有高度智能化和可互操作性.     

生产调度系统中的XML通讯模型及实现

在分析Web环境下生产调度系统体系结构的基础上,建立了基于XML(Extensible Markup Language)的生产调度系统的通讯模型,设计了基于SOAP(Simple Object Access Protocol)协议的XML引擎、XML请求分发处理中的安全过滤器、请求分发处理器中的对象定义和交互过程,并探讨了将该模型用于实际生产调度系统中的实现技术.     

生产调度系统中的XML通讯模型及实现

在分析Web环境下生产调度系统体系结构的基础上,建立了基于XML(ExtensibleMarkupLanguage)的生产调度系统的通讯模型,设计了基于SOAP(SimpleObjectAccessPro鄄tocol)协议的XML引擎、XML请求分发处理中的安全过滤器、请求分发处理器中的对象定义和交互过程,并探讨了将该模型用于实际生产调度系统中的实现技术。     

管道调度操作支持系统联动报警功能和技术要点

管道调度操作支持系统实现了与SCADA系统的报警、控制操作的联动查询,可动态提供操作流程,操作效果等操作支持,提高了对调度控制的支持的针对性和有效性。并提供报警数据的统计,为优化报警配置提供数据基础。本文针对管道调度操作支持系统的报警功能要求,介绍了系统的报警显示、报警统计等报警功能,并论述了系统读取SCADA系统报警数据的方法,以及如何辅助调度人员进行报警处理。该系统已经在兰成渝管道上进行实际应用。     

基于主动网的自适应入侵响应系统的研究

对入侵检测系统(intrusion deteetion system,IDS)的相关属性进行数学分析,根据报警可信度,响应成本、系统损失等因素的考虑,提出了基于最小代价的响应决策模型,该模型能够根据IDS的报警可信度和入侵响应系统(intrusion response system,IRS)的响应执行状况自适应的调整响应策略.在此基础上设计了基于主动网络的自适应入侵响应系统,采用主动网技术,使自适应响应系统具有更强的灵活性、可扩展性以及鲁棒性.     

供水调度监测系统功能设计与实现

分析了在供水调度系统中,以计算机、通信以及网络等技术为基础的监测子系统的开发环境,数据的存储和管理设计,各个功能的设计和实现。该系统实现了包括实时数据的采集,监测报警,数据存储和显示等功能,从而可以对整个供水管网运行状态进行实时监控。同时,还实现了各站点监测类型的分析、报表统计功能,极大地促进了供水部门的调度信息化、自动化的建设,大大提高了工作效率。     

上海电网调度控制中心集中控制系统设计

集中控制系统(简称中控系统)为整合同一空间的各种设备、实现同一空间不同厂家、型号、性质的器材或硬件、环境装置连在一起的多个设备和系统一体化综合控制提供了平台.将中控系统应用到电力调度控制中心中,可以很好地对电力调度控制中心各应用系统和设备进行整合和集中综合控制.提出了Crestron Isys TPS-6000中控系统在上海市电力公司调度控制中心的设计思想,分析了该系统的应用情况和使用效果,阐述了中控系统在电力调度控制中心的作用.     

基于MAS的生产车间动态调度系统的研究

简要介绍了车间调度的基本问题,发展现状以及多智能体技术.在分析车间生产调度特点的基础上,提出了基于MAS的动态车间生产调度模型.该模型把车间生产调度系统分为调度代理、任务代理和资源代理等.代理之间采用了基于改进的合同网的关系网模型,并引入了基于混合遗传算法的调度模块,为解决车间加工动态调度问题提供了一种新的方法.仿真实验结果表明,该系统更好满足了车间调度的动态化、高效化、智能化、实用化的要求.     

基于框架的虚拟计算环境关键技术研究

通过分析目前几种虚拟计算环境的现状、特点及适用范围,针对中小规模、异构零散的的计算需求,提出一种基于框架技术的虚拟计算环境的实现方法,并结合框架技术设计了分层服务模型.基于复杂多样的、性能差距明显的计算资源的调度问题,提出了一种基于对等模式的随机自适应调度算法.该算法提供对关联任务的调度,适合异构的、资源规模较大的环境,尤其是计算资源差异明显的异构计算环境.实现了基于框架技术的虚拟计算原型系统,并通过实验测试对比算法的调度性能,最后将计算环境应用于实际的地震资料处理中.     

基于物联网技术的出租车调度系统设计

针对目前基于站牌调度的出租车调度系统存在的易出现乘客抢上车插队、调度没有最优化和乘客/出租车爽约现象频发的不足,提出了基于物联网技术的出租车调度系统。系统在原站牌调度系统基础上,增加了感知层射频识别(RFID)读写器、传输层通用分组无线服务技术(GPRS)网关模块和应用层调度管理中心等。测试结果表明,该系统能够实现在城市内的各站牌预约点近距离调度站牌附近出租车,调度管理中心可实现各站牌点调度结果的管理与查询。     

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。