多级反馈队列调度策略在Linux中的应用和实现

Linux操作系统作为日益流行的服务器操作系统，目前已得到广泛应用。该文分析了当前在Linux系统中进程调度策略的不足，探讨了在Linux系统中对多级反馈队列调度策略的应用和实现，提出了对Linux内核的修改方法。     

嵌入式Linux系统在温室计算机控制中的应用

本文介绍了Linux系统在现代温室计算机控制中的应用，主要就硬件实现平台，Linux针对本系统的特点，嵌入式Linux内核实现，基于Linux的嵌入式软件实现方法作了较为详细的说明。     

Linux网络系统安全的分析和探讨

随着因特网的日益普及。计算机网络安全问题已日益突出。本文详细介绍了Linux网络操作系统的安全技术及实现方法。对保证Linux网络系统的安全有现实意义。     

Linux下串行通讯的实现

本文介绍了在Linux环境下实现串行通讯的方法和一些技巧，并给出了相应的程序代码，为日益流行的Linux软件开发提供一个有价值的参考。     

基于缺页的Linux任务管理器设计与实现

为了缓解Linux下输入命令查看系统信息所带来的不便,基于缺页监控开发了图形化Linux任务管理器。在gtk编程风格的基础上介绍了Linux任务管理器的实现原理,分析了利用缺页来实现内存监控的必要性,讨论了传统获取缺页方法的不足,提出了通过修改Linux内核、重新配置编译、加入新的系统调用来得到缺页信息的新方法。实验结果表明,采用新方法能够很好地监控内存准确度和性能。     

采用统一接口采集Linux内核信息的方法研究

Linux操作系统本身为用户程序提供了大量接口用于采集内核信息，每一种类型的内核信息都有一个相应的接口。一个对Linux内核进行全面监控的监控系统需要采集大量的内核信息，这就需要调用大量的接口，这给监控系统带来了很大的复杂性。文中提出了一种采用统一接口采集内核信息的方法，并对其进行了研究与实现，采用这种方法。用户程序从同一个接口可以采集到所有的内核信息，简化了用户程序对内核信息的访问。     

嵌入式系统网络底层驱动的研究与实现

随着信息技术与计算机网络的迅速发展，对具有良好网络功能的嵌入式系统的需求日益迫切。该文在分析嵌入式系统中实现网络底层驱动所需要注意的问题之后，系统地介绍了已经实现了的一个网络底层驱动的相关数据结构和算法，并以与Linux系统相比较的方法给出了我们研制的MiniCore操作系统的网络驱动性能。     

基于嵌入式Linux和Qtopia平台中文环境的实现

嵌入式Linux系统的应用日益广泛,但是如何实现它对中文环境的支持却仍是开发人员必须面对的一个难题.Qtopia是在嵌入式Linux系统中广泛使用的GUI综合应用平台,它对国际化的完备支持在很大程度上简化了实现中文环境的问题.本文介绍了Linux系统中文环境的实现机制,并详细阐述了基于嵌入式Linux和Qtopia平台的中文解决方案.     

利用LKM的Linux审计功能实现

安全和完整地获得信息对于审计和入侵检测系统是极其重要的，但是Linux的shell记录并没有提供充足的信息并且历史记录可以被用户轻易地修改。分析了当前审计系统的缺点，给出了一个利用可加载内核模块的方法实现审计功能的例子。     

网桥审计系统的设计与实现

通过分析目前主要几种审计系统的不足，提出了一种基于Linux内核的网桥审计系统的实现方法。首先介绍了与该系统有关的Linux内核部分，最后给出审计系统的模块设计和功能实现。     

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。