在信息融合系统中引入多智能体技术

论文简要介绍了多智能体技术和信息融合系统,将多智能体技术运用到信息融合系统中,对信息融合系统中的模型和方法进行改进,提出了多智能体信息融合模型,并研究了信息融合中的分布式强化学习。通过借鉴多智能体技术的研究成果,开辟信息融合理论和应用发展的另一条途径。     

基于信息融合的多智能体协作方法的研究与应用

将信息融合技术运用到多智能体系统中,利用信息融合方法对智能体得到的在空间上分布的其他智能体感知的局部信息进行融合,得到较完整的态势评估,以此来规划和协调多智能体系统的协作行为,提出了一种基于信息融合的多智能体协作方法。将该方法应用在机器人救援仿真系统中,结果表明该方法能够实现全局上的任务分解策略,有效提高了智能体协作能力。     

多框架融合的调度管理信息智能体集成平台实现

针对铁道电网调度监控管理中自动化孤岛、信息难以集成的问题,提出了一种多框架融合的信息智能体集成新方法;采用JACK体系建立了监控信息智能体,采用公共信息模型实现了状态类、模拟类和控制类交互业务信息流,将多智能体、数据库连接池和Web Service多框架融合实现了调度监控信息集成平台;量测信号4#ZBCBVVDD的测试结果验证了集成平台的有效性.     

基于D-S证据的多Agent不确定结论模型框架

抓住智能体的独立行为特性,针对多智能体不确定结论的综合问题,提出了一种基于D S证据理论的多智能体不确定结论求解模型。对传统的D S公式进行了扩充和改进,从而解决了多智能体之间结论的信息融合问题,并对模型进行了模拟仿真。     

无人机编队协同探测研究

未来战争是体系与体系的对抗;将多智能体技术和信息融合技术引入无人机编队系统中,构建出无人机编队协同探测任务规划体系和编队协同探测信息融合体系,并分析了该体系的结构.进而探讨了基于多智能体技术的无人机编队协同探测策略;此外,结合无人机编队面对突发威胁的应对措施,阐述了协同探测策略的具体应用;该研究成果对其他多作战平台系统的协同作战也有一定的借鉴意义。     

多智能体系统中基于局部测量信息的目标定位

针对多智能体系统中的定位问题,设计一种在变拓扑网络条件下的分布式目标定位算法,使所有智能体实现目标的相对定位.假设智能体只能获取局部的测量信息并进行局部信息交换.算法包括成对智能体之间相互定位算法和基于一致性的目标定位融合算法,对算法的成立条件和收敛误差进行分析,并通过仿真实验验证所提出算法的有效性.     

基于不完备信息预测的多智能体分布式协同

为了解决部分可观对抗环境中多智能体协同决策难题,受人大脑皮层通过记忆进行学习和推理功能启发,提出一种新的部分可观对抗环境下基于不完备信息预测的多智能体分布式协同决策框架。该框架可采用支持向量回归等多种预测方法通过历史记忆和当前观察信息对环境中不可见信息进行预测,并将预测信息和观察到的信息融合,作为协同决策的依据;再通过分布式多智能体强化学习进行协同策略学习得到团队中每个智能体的决策模型。使用该框架结合多种预测算法在典型的部分可观对抗环境中进行了多智能体协同决策的验证。结果表明,提出的框架对多种预测算法具有普适性,且在保证对不可见部分高预测精度时能将多智能体协同决策水平提升23.4%。     

拟人多信息融合在机器人避障中的应用

介绍了拟人多信息融合思想,人工神经网络信息融合的原理和过程.结合实际情况,对智能移动机器人多传感器采集的信息进行了融合处理,将拟人多信息融合的方法应用到了智能移动机器人平台避障实验中.与传统逻辑判断避障的方法进行比较,总结了拟人多信息融合方法在移动机器人避障中的优越性.     

基于多源信息融合的智能汽车环境感知技术分析

文章探讨了智能汽车环境感知功能的实现,分析多源信息融合技术在其中的应用。介绍了多元信息融合技术和智能汽车环境感知技术,从多源信息融合预处理和多源信息检测识别两方面,阐述多源信息融合在智能汽车环境感知中的应用,完善了汽车环境感知系统功能,以期能够推动我国汽车行业的智能化发展。     

牵制控制下的多智能体系统群一致性

本文研究了一类多智能体系统在牵制控制下的群一致性问题,提出了融合群内信息交互、群间信息交互和牵制控制器的一致性协议.对固定拓扑下的二群组智能体系统和切换拓扑下的多群组智能体系统,利用稳定性理论和图论分别给出了适用于任意拓扑结构的充要条件,使得智能体系统在所提协议和牵制控制器的联合作用下实现预期的群一致.针对拓扑图中含有生成树这一特例,分析了被施加牵制控制的智能体在结构中的具体位置.此外,对切换拓扑下进行非线性交互的多群组智能体系统,利用Lyapunov方法推导出一充分条件,得出只要对多智能体系统的一部分主体进行牵制控制,则所有智能体即可在所提协议和牵制控制器的作用下渐近收敛于各自的期望一致平衡点.最后,仿真例子验证了所提方法的有效性.     

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。