一种基于带宽和时延的流量工程动态路由选择算法

在流量工程的路由选择模式中动态路由选择算法最重要。本文研究了多种动态路由选择算法后，提出了一种基于带宽和时延的流量工程动态路由选择算法，并通过实际仿真，验证了该算法的有效性和便利性。     

基于预测时延的无线mesh网络组播路由算法

通过对无线mesh网络的特性分析及其对路由的影响,提出一种基于预测时延的路由选择的组播路由算法,该算法通过选择从源节点到目的节点传输时延最小的路径,通过路径合并,形成组播路由树。这种路由算法具有低时延QoS保障能力,并具有局部修复能力。基于NS2对算法进行仿真,结果证明了算法的有效性。     

网络互联中的路由选择技术

路由是网络互联技术的重要组成部分，不同的网络协议相应有不同的路由选择协议，这些路由选择协议的基本原理是一致的。本文给出了路由选择技术的基本原理着重分析了躜上算法的设计目标，分类、衡量标准及两类基本算法：Ｖ－Ｄ算法和ＳＰＦ算法。     

基于遗传算法的QoS路由选择与仿真

该文提出了一种实现QoS路由选择的遗传算法，并以端到端的单点投递路由选择为例，详细地描述了该算法的实现过程。在该算法中采用一种新的编码方法，提出了一种新的适用于路由选择的交叉和变异算法，有别于已有的路由选择遗传算法。仿真结果表明此算法是可行的、有效的。     

基于不同树策略的多播路由算法

提出选择不同的树路由作为多播通信方案,以获得较低的综合代价保证网络负载均衡。由于多播路由的最优选择问题在多项式时间内难以求解,提出一种使用遗传算法的路由算法来同时优化不同的服务质量指标,计算产生出几种路由树。模拟结果和分析表明这种基于不同树策略的路由算法具有较好的性能效果。     

基于JAVA的软件定义路由算法实现

以一种广义分类方式可将路由选择算法分为全局式路由选择算法和分散式路由选择算法,其中具有全局状态的算法常被称为链路状态路由(Distance-Vector,DV)算法,分散式路由算法也称为距离矢量(Link State,LS)算法,我们使用Java语言来实现路由选择算法,为软件定义路由提供借鉴.     

基于分簇的无线传感器网络节能路由算法

针对传感器网络能量有限的特点，提出一种基于分簇的节能路由算法—CESR算法，算法采用逐步求解的方式，将整个网络分成若干个交叠簇，整个网络有簇间和簇内两级拓扑。节点在选择路由时先根据簇间拓扑选择簇路由，当数据经过某个簇进行转发时，边界节点根据簇内拓扑产生簇内路由，算法尽量选择消耗能量值最小的路径转发数据，并且能够避免低能量节点，算法存储开销和控制消息相对较少。     

基于Ad Hoc网络的SMR优化算法的研究

SMR是一种基于DSR算法的多路径路由算法,这种算法的本身具有明显的局限性。第一,它可能在存在多条不相关多路径路由的情况下选择两条相关多路径路由作为最后的主路由与备份路由;第二,它在目的节点只收到一个RREQ分组的情况下只生成一条主路由,而实际可能存在多条传输线路。针对SMR算法的局限性,本文提出一种改进的SMR算法—ISMR,该算法保证了两条路由的形成,保证了在存在多条不相关多路径路由情况下,一定会生成两条不相关多路径路由。     

移动Ad Hoc网络中缓存信息的有效利用

一个移动AdHoc网络是由一群无线移动主机组成的自组网络，它不需要固定的基础设施和集中管理，针对这种网络，人们提出了许多路由算法，该文讨论了如何更加有效地使用路由发现过程中缓存的信息，提高这些路由算法在路由发现和路由维护方面的性能。     

基于模糊Petri网模型的路由选择

分析了影响通信系统性能的因素，力求在实时综合性能的基础上选择通信路由，论述了传统Petri网和模糊Petri网的一些基本概念和特点及其区别，描述了用模糊Petri网进行系统综合性能分析时的有效算法，提出一种基于综合性能的路由选择算法，最后通过实例来说明通信路由综合性能评价以及路由选择方法。     

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.     

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。     

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.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

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     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.