图形用户界面系统国际化的研究

国际化的GUI系统不仅仅要能够正确地显现多语言文本,而且要能够产生与文字书写方向相应的用户界面。目前主要的GUI库仅支持镜像,还不存在一个GUI框架既支持垂直文字又支持双向文字。在本文中,分析了开发国际化GUI系统过程中面临的问题,给出了一个层次模型来实现动态用户界面风格。     

亲生的不如领养的——PalmSource面临转型

“后妈生的。”中文真是奇妙,仅仅多了“后”字,就将那种不被人重视、受尽世态炎凉的情景跃然纸上。不过,亲生的也未必就一定能得到比领养的更好的待遇——起码,在商场上就是如此。去年PalmSource宣布将推出Palm OS For Linux计划。也就是说,以嵌入式Linux为内核,通过Palm OS兼容层的转换,使用户能够在Linux上享受到Palm OS的GUI界面,能够运行目前在Palm OS上的数以万计的应用软件。支持Linux,这并没有什么不好。开放源代码是大势所趋,早一些支持Linux对用户、对厂商、对开发者都有利。但放在PalmSource身上,这事就不那么简单。15…     

Linux下的Input子系统

Input子系统属于Linux系统下字符类驱动系统,现在Android、X-windows、Qt等众多应用于Linux系统中键盘、鼠标、触摸屏等输入设备的支持都通过、或越来越多倾向于标准的Input子系统．基于现况本文首先从Input_dev层,InputCore层和EventHandler层介绍Input输入子系统的实现框架,然后通过4x4矩阵按键在Input子系统中的实现以及用户在应用层通过Input子系统提供的接口函数对按键操作来查看具体的键值和按键状态．测试结果表明,Input子系统里的按键驱动稳定高效通用性强．     

Qtopia Core在嵌入式Linux上的移植及应用

良好的人机接口界面(GUI)是嵌入式系统设计的一个迫切需求,分析了嵌入式Linux下流行的GUI系统qtopia Core的窗口系统和核心机制--信号与槽,介绍了其在嵌入式Linux平台上的交叉编译与移植过程,最后结合实例阐述了基于Qtopia Core的嵌入式GUI程序的设计与实现.     

基于DM3730和W5300的嵌入式视频流传输系统的设计与实现

针对传输视频流业务的应用需求,设计并实现了以达芬奇技术系列芯片DM3730处理器和以太网处理芯片W5300为组成核心的嵌入式视频传输系统。深入分析了基于W5300的以太网卡驱动程序设计方法,分别实现了W5300彝定／硬件协议栈在Linux环境下的移植,并通过实验以FTP传输方式测试了视频流业务的传输性能。实测表明该系统达到了2．6Mbps的传输速率,可以满足传输视频流业务的性能要求。     

嵌入式Linux系统中GUI系统的研究与移植

针对嵌入式Linux系统中几种常见的GUI(Graphic User Interface)系统,讨论嵌入式GUI实现的底层支持方式;详细分析Microwindows、MiniGUI、Qt/Embedded等三种GUI的实现特点、体系结构、API接口。结合这三种嵌入式GUI在以Motorola i.MX1为核心的实际应用系统中移植开发的问题,讨论移植技术与中文化技术。     

多移动机器人路径规划仿真系统的设计与实现

该文提出了一种多移动机器人路径规划仿真系统的设计方案,并在设计的基础上实现了仿真系统OpenSim。该仿真系统由GUI、业务处理层和存储层组成。GUI是图形用户界面,将仿真系统的各种功能提供给用户;业务处理层进行仿真数据的处理,由仿真平台和各个COM组件服务器组成,机器人传感器、控制器和协调器在COM组件中实现;存储层存储仿真过程中的数据,程序通过在存储层数据库中读写数据来获得和发布信息。该系统具有很好的通用性、分布式运行能力和强大的与用户的交互能力,极大地方便了对多移动机器人路径规划算法的研究。     

基于嵌入式Linux的智能手机系统软件的设计与实现

介绍了一种基于嵌入式Linux的智能手机系统软件平台的设计与实现,系统软件分为四层,最底层是操作系统层,实现对嵌入式Linux的移植、裁剪;第二层是系统服务层,所有跟手机相关的业务都由此层来处理,以及数据库服务;第三层是中间层,嵌入式GUI实现人机交互接口,J2ME中间件支持Java程序的下载、运行;最上层是智能手机应用层,实现手机的基本功能及其他应用.     

嵌入式Linux下Qt/Embedded的应用

随着嵌入式系统的发展，用于实现与用户交流功能的嵌入式GUI成为研究中的一个重点。嵌入式Linux下，如粜图形界面接口采用的是Qt／Embedded，则必须采用Linux的帧缓冲设备来处理相关的底层命令。帧缓冲是Linux为图形设备提供的一个抽象接口．是Qt／Embcdded的底层图形引擎。文中介绍了Linux帧缓冲设备驱动程序框架，基于三星公司的S3C2410x处理器的开发平台，系统给出了嵌入式圆形界面GUI的移植，包括编译环境的建立，编译参数的设置等。     

嵌入式Linux背景下智能手机系统软件设计及实现探究

本文详细研究和分析了一种在嵌入式Linux背景下的智能手机系统软件设计以及实现。具体而言,可以将手机系统软件在层次方面,以此分为四层,操作系统层为最底层,主要目的是为了实现对嵌入式Linux的移植与裁剪;其次为系统服务层,通常而言所有与手机相关的业务以及数据库相关服务均由此层进行处理;第三层为中间层,其中能够通过嵌入式GUI,作为实现人机交互的有效接口,而通过J2ME的中间件可以对java程序的下载与运行提供有效的支持;第四层则为智能手机的应用层,主要功能是为了完成手机的基本功能与其他相关应用。     

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.