基于动态神经网的理棒直接自适应控制

基于动态神经网络，研究了一类具有未建模动态的未知多变量非线性系统的鲁棒直接自适应控制。基于Ｌｙａｐｕｎｏｖ理论得出一种理棒稳定的权学习算法，该算法不需要知道理想权矩阵的先验知识，并保证设计的控制器的稳定性，仿真结果表明提出的鲁棒控制算法的有效性。     

基于再制造的闭环供应链动态模型及其鲁棒H∞控制

研究基于再制造的闭环供应链运作问题，建立了具有再制造、废弃时滞和需求不确定性的闭环供应链动态模型．分析了闭环供应链的鲁棒运作，给出了针对再制造闭环供应链动态模型的鲁棒H∞控制策略和线性矩阵不等式算法，鲁棒H∞控制策略能够抑制闭环供应链运作过程中的不确定性影响，使闭环供应链系统运作达到理想总成本．最后通过仿真计算验证了所提出方法的有效性．     

一种鲁棒的总体最小二乘自适应辨识算法

针对输入输出观测数据均含有噪声的系统辨识问题，提出了一种鲁棒的总体最小二乘自适应辨识算法．该算法在对总体最小二乘问题与向量的瑞利商及其性质研究的基础上，以被辨识系统的增广权向量的瑞利商(RQ)作为损失函数，利用梯度最陡下降原理导出权向量的自适应迭代算法，并利用随机离散学习规律对权向量模的分析修正了算法梯度，提高了算法的噪声鲁棒性，构成了一种噪声鲁棒的总体最小二乘自适应辨识算法．文中研究了该算法的收敛性能．仿真实验结果表明该算法的鲁棒抗噪性能和稳态收敛精度明显高于其它同类方法，而且可使用较大的学习因子，在较高的噪声环境下仍然保持良好的收敛性．     

基于动态神经网络的鲁棒自适应跟踪

研究了一类基于两层动态神经网的仿射型鲁棒适应跟踪问题，对于未知的仿射非线性系统，提出了新的鲁棒学习算法，该算法不需要知道 理想权值的界。     

用动态补偿器实现鲁俸对角优势

该文讨论了用动态补偿器实现鲁棒对角优势问题．给出了用动态补偿器实现鲁棒对角优势的条件和求取动态补偿器的具体算法．最后给出了一个具体算例．     

动态加权最小二乘支持向量机

提出一种基于动态加权最小二乘支持向量机（LS—SVM）的时间序列预测方法．动态加权LS—SVM能够跟踪时变非线性系统的动态特性,适合于系统辨识和时间序列预测;同时采用鲁棒方法确定权系数,以减小噪声的影响．将动态加权LS-SVM算法应用于工业PTA氧化过程中的4-CBA浓度预测,结果显示,动态加权LS—SVM预测精度高,能够有效减小噪声的影响．     

高精度RBP－模糊推理复合学习系统

该文提出了高精度ＲＢＰ－模糊推理复合学习系统．系统主要由基于鲁棒估计的鲁棒ＢＰ学习环节和基于混合合成推理的模糊推理环节构成．该学习系统的主要特点是可由鲁棒ＢＰ算法和ｍｉｎ－ｍａｘ，ｍａｘ－ｍｉｎ模糊推理算法简单地实现．最后通过在目标跟踪问题中应用结果，表示了该算法的高精度和鲁棒性．     

时滞和参数不确定的供应链动态模型及其鲁棒H∞控制

研究了不确定环境下的供应链运作问题，并建立了具有生产时滞、成本参数和需求不确定性的供应链动态模型．分析了供应链的鲁棒运作，采用鲁棒H∞控制策略和线性矩阵不等式（LMI）算法处理供应链系统鲁棒运作问题．借助供应链库存状态的静态反馈控制，使供应链动态系统达到抑制不确定性干扰的作用，并使供应链运作达到理想总成本．最后，通过仿真计算验证了所得结果．     

基于混合粒子群算法的动态鲁棒优化

动态鲁棒优化问题广泛存在于各个领域,且难以求解。动态鲁棒粒子群优化(PSO)算法是一种有效的求解方法。但是,现有算法存在全局搜索能力弱和无法对个体进行综合评价的问题。为有效求解动态鲁棒优化问题,在研究的基础上提出一种混合差分进化的动态鲁棒粒子群(DRPSO-DE)算法。该算法不仅使用差分进化(DE)算法的变异策略提升粒子群算法的全局搜索能力,还提出一种综合指标来对种群个体进行评价。此外,为提高动态鲁棒粒子群算法的搜索效率,采用一种基于排序的选择策略挑选最佳个体,并将它们用于指引种群进化。为验证DRPSO-DE的有效性,选取五个动态标准测试函数对其进行测试。从试验结果来看,所提出算法的整体性能要优于原有算法,能够有效求解动态鲁棒优化问题。     

基于联邦滤波器结构的分散化H∞鲁棒滤波算法研究

深入研究了基于联邦滤波器结构的分散化H∞鲁棒滤波算法;通过研究H∞滤波器的结构和鲁棒 机制,提出一套H∞鲁棒信息滤波公式．在此基础上,建立了一套形式简单、可行性强的联邦H∞鲁棒滤波算 法．与传统联邦卡尔曼滤波算法相比,该算法仅增加一个鲁棒化环节,实际上是一种Krein 空间的联邦卡尔曼 滤波算法．最后,全面分析了该算法四种结构及其性能,仿真结果表明了其具有有效性和可行性．     

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。     

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.