非线性广义系统的右可逆性

研究了广义非线性系统的右可逆性,给出构造性的求逆算法以克服以往结果中需求解 非线性方程组的困难,从而使得求逆算法对任意足够光滑的非线性广义系统皆为可行.     

联防联动 有防有控——新一代的安检门系统

“有防无控”的金属探测通道的致命弊端，就是一旦暴徒持有危险品发生暴力行为时，给安检人员及周围群众带来不可想象的灾难性事故。本文介绍了一种将将安检系统和门控系统有机整合在一起的新系统、通过门的自动化控制，有效阻止暴力案件的发生。     

系统崩溃

不管你如何小心．Windows系统终有崩溃的时侯,此时我们多半是哭丧着脸向高手求教,得到的回答又往往是“重新安装系统”……唉,这可是无助又无奈。     

广义离散随机线性系统的状态估计

本文讨论了广义离散随机线性系统的状态估计问题,得到了一种比较实用的系统状态预测和滤波估计的递推算法。     

SAP系统在企业管理中的实施与应用

该文以中国石油ERP系统在渤海装备新世纪机械制造有限公司实施为背景,阐述实施过程,总结运行过程中遇到的问题及解决办法,实现ERP系统规范运行,进而分享经验。     

DJK—7500局部操作站组态系统的研制

本文叙述ＤＪＫ－７５００局部操作站组态系统的功能，说明了ＤＪＫ－７５００系统的数据结构，以及组态系统的实现。     

随机时变参数的随机逼近辨识及收敛性分析

本文讨论MIMO离散系统的随机时变参数基于随机逼近法的辨识问题。文中研究了参数估计和输出误差的收敛性并给出了初步的持续激励条件。在该条件下,证明了估计参数值和估计值与随机时变参数的统计均方差分别收敛于该随机时变参数的期望值和方差值。仿真结果表明了参数估计具有较好的收敛性与一致性。     

卡车的TSK模糊控制

针对在保证一定精度的条件下,要求一次性完成卡车的倒车的情况,利用TSK (Takagi-Sugeno-Kang)模糊系统控制卡车,在TSK模糊控制器作用下让卡车从任意的初始位置一次性倒车到指定的位置。在卡车数学模型中,线性部分设计线性状态反馈控制器,非线性部分先求TSK模糊模型,然后设计基于TSK模糊模型的TSK模糊控制器。它是一个非线性控制器,可保证闭环系统的稳定性。仿真实验结果表明,所设计的TSK模糊控制器对卡车的倒车控制是非常有效的。     

8098自开发用户板

８０９８自开发系统的硬件原理及构成     

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。