可再生能源分布式发电能量管理的复杂性研究

本文主要研究可再生能源分布式发电系统能量的优化与协调问题.基于系统能量管理中优化与协调控制问题的复杂性,提出采用基于Agent的建模与仿真方法进行研究.针对系统要求,以分散式发电系统的实体节点的映射封装Agent,提出了智能混合控制Agent的概念,建立了3层混合Agent的内部结构模型;并建立了以个体层、组织层和社会层构成的3层动态层级MAS体系结构,进一步辅以主导Agent和移动Agent辅助系统优化与决策,最终建立了一种新的面向再生能源的分散式发电系统能量管理的MAS宏观模型.最后应用有色Petri网对系统的优化与协调过程进行了动态模拟,验证了所提出的结构的正确性、合理性和有效性.     

基于Agent的空防作战系统建模仿真方法研究

空防作战系统是一类复杂的军事作战系统.从军事作战系统的主导因素入手,讨论了传统研究方法的局限性,进而提出使用基于Agent的建模仿真(ABMS)方法研究空防作战系统的思路,并根据空防作战系统建模仿真应用的需要对ABMS进行了改进:建立了层次化的ABMS建模框架,为解决对作战动态过程的建模而引入了事件的扩展概念及其分析方法.然后介绍了一个空防作战系统建模仿真研究的完整过程,给出了系统动态演化的事件模型和作战单元的Agent模型,并针对仿真结果进行了分析;从而证明了ABMS方法的可行性和有效性.     

基于Agent的复杂系统分布仿真建模方法的研究

基于Agent的分布仿真是研究大型复杂系统的一种有效的、重要的方法。为了减小复杂系统仿真的复杂度,增加仿真模型的重用和可维护性,需要研究基于Agent分布仿真的建模方法。首先对复杂系统及其特性进行了分析,对基于Agent的仿真进行了全面的论述,然后对基于Agent的复杂系统仿真中的复杂系统建模分析、Agent建模分析以及Agent的分布进行了分析,给出了基于Agent的复杂系统分布仿真的建模步骤,最后给出了在此建模思想指导下的金融证券市场的建模过程。     

作战超网络多Agent模型

运用网络化作战的思想,分析了军事网络的性质,将复杂适应系统理论多Agent建模和超网络建模相结合,提出一种超网络多Agent模型.该模型使用超网络表示军事网络;在微观层面,扩展实体的网络属性;宏观层面考虑了网络的演化行为.模型结合实体关系对网络的涌现和整体网络对实体行为的驱动实现网络状态机,规定和反映网络的交互关系和发展变化,以更好地反映信息化作战条件下的体系对抗特征.使用该模型建立的仿真平台比较适合进行指挥、控制方面的实验.     

水面舰艇智能辅助决策系统研究

海军集团是联合作战的组成部分，该文以红蓝双方海上舰艇编队对抗为作战想定背景，以实时辅助指挥引导水面舰艇的作战行动为目的，采用面向分布式人工智能的理论技术方法，进行水面舰艇智能辅助决策系统研究，通过建立作战智能体作为MAS系统应用智能体的新概念，根据联合作战水面舰艇指挥系统的总体结构、作战信息流程和功能模块划分，给出了水面舰艇智能辅助决策MAS系统的Agent组成，Agent主体结构，Agent功能分类，系统的运行流程，最后提出和建立了作战指挥控制系统的MAS体系结构模板，构造了水面舰艇智能辅助决策形式化结构模型和构成框架，为解决联合作战水面舰艇作战指挥控制决策问题提出了一种新的思路和方法。     

基于改进分层任务网的指控行为模型

指挥控制行为模型是军事分析仿真系统的主要建模对象之一。通过改进的分层任务网对军事分析仿真系统的指控行为进行建模。指控行为模型由统一的任务描述规范和通用任务管理器组成 ,可以克服现有模型中存在的建模难度大、模型扩展性弱和使用灵活性差的缺点。最后通过一个空海对抗的实例说明了该指控模型的应用。     

一种基于ABD的网络中心战概念级仿真模型

未来战场上的主体是分布、网络化的作战力量,网络中心战将成为信息时代崭新的作战样式.现有的作战仿真系统不足以胜任对网络中心战的建模和仿真.以军事复杂系统理论研究为背景,采用基于智能体抽象建模仿真(Agent Based Distillations, ABD)的方法,提出了一种网络中心战概念级仿真模型,对模型中作战/指挥单元的能力模型、决策模型以及关系网络模型进行了详细介绍.最后构建了一个仿真示例想定,仿真结果证明了模型具有一定的有效性.     

聚合级CGF中的指挥Agent研究

作战指挥决策及其实时性是聚合级CGF系统的重要研究内容,解决好指挥问题能减少军事作战仿真中的操控人员及其工作量,扩大作战规模,增加仿真实体特别是指挥实体的自主能力。该文回顾了国内外在指挥实体研究的进展,结合目前大规模作战仿真存在的一些问题,提出了基于Agent的指挥实体结构,并对其功能、工作过程,通讯形式进行了较为详细的阐述。     

基于CAS理论的应急预案仿真系统的研究

针对应急预案仿真系统的多交互性、多层性等特点,论文着重研究了应急预案仿真系统的构建,基于多主体(Multi-Agent)对应急预案进行了主体建模,并对资源Agent进行了形式化描述,提出了多主体反应式决策体系,详细描述了反应式决策体系中各个部件的功能.建立了基于CAS理论和多主体建模技术的多层次CAS仿真系统模型,构建了合理的应急预案仿真系统.     

陆军合同作战指挥决策过程建模

现代作战的快速性,使得指挥员完成决策任务必须依赖于计算机辅助决策的帮助,而开发实用的决策支持系统需要有决策过程模型作为基础.针对目前这类过程模型存在的不足,根据陆军合同作战指挥的特点,通过将决策者和辅助决策者以及计算机应用程序功能综合纳入建模过程,提出了"一条主线、两层分级、三种关系,四种活动"为要素的主从式建模方法,其特点是便于决策者、辅助决策者以及参与决策者等相关人员的相互了解和沟通,突出了计算机应用程序在模型中应具有的基本功能,在辅助决策系统的分析设计上,为军事和技术人员提供了一种便于交互和便于理解的表示方式.     

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     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

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。