基于多Agent系统和神经网络的路由选择策略

我国长信网的接通率为45%左右,链路的利用率也仅为30%～40%.据估计,接通率 每提高一个百分点,收益可达10亿元,针对目前所使用的路由选择方法的不足,提出全新的基 于多Agent系统和神经网络预测的路由选择策略,包括网络模型、选路过程、Agent内涵的刻 划,并介绍了用递归神经网络进行预测的思想.仿真结果表明,其良好的分布性和智能预测能力 使之优于其它方法.这为解决网络接通率低和负荷不平衡问题提供了良好途径.     

无级电话网动态路由策略的研究

无级电话网的动态路由技术能有效降低呼损、提高接通率。本文针对所开发的一个集中式、全局优化无级电话网动态路由策略选择系统进行综述；详细分析了求解路由方案的四种算法；介绍了该系统的实现、运行情况和话务模拟结果；该系统在广东省长话网得到了良好的应用。     

基于预测的链路资源决策模型

无论是电信网还是计算机网 ,路由问题都是一个关键技术 ,路由算法的优劣直接影响着网络呼叫的接通率和负荷平衡情况 .本文针对我们提出的用于 S1 2程控交换机的新的路由选择策略 ,给出基于对策论的链路选择的预测决策模型 .     

利用话务模拟技术分析电话网动态路由策略的性能

本文以动态控制选路和动态迂回选路两种动态路由策略为研究对象，采用话务模拟技术研究其应用于我国长途电话网后的网络运行情况，定量评估了动态选路所能带来的网络接通率和网络适应故障能力的提高，并对ＤＡＲ算法中继预留参数的选择进行了研究。     

一种减少网络振动的智能路由选择算法设计

近来,研究人员开始关注基于数据驱动的智能网络协议设计方法,以此取代依赖人类专家的传统协议设计方式.智能化路由技术也随之得到快速发展,但仍存在亟待解决的问题.研究了当前智能路由算法在路由更新过程中带来的大范围路由抖动以及转发效率下降问题.提出了 一种路由抖动抑制的智能路由选择算法FSR(flap suppression ...     

分布式智能视频监控系统设计与实现

本文介绍了基于计算机网络的分布式智能视频监控系统的设计思路和实现方法,详细讨论了在局域和广域网络环境下分布式智能视频监控系统的网络结构及在数字监控系统中外接电视墙功能的实现方法,并以此为基础,提出了数字监控系统中自治系统、视频桥和远程视频代理的概念;给出一种动态视频路由选择算法的设计与实现方法．     

分布式智能视频监视系统设计与实现

本文介绍了基于计算机网络的分布式智能视频监控系统的设计思路和实现方法,详细讨论了在局域和广域网络环境下分布式智能视频监控系统的网络结构及在数字监控系统中外接电视墙功能的实现方法,并以此为基础,提出了数字监控系统中自治系统,视频桥和远程视频代理的概念;给出一种动态频路由选择算法的设计与实现方法。     

IMS接入网关智能路由

在数字电话交换系统中设计IMS接入网关以解决目前将语音应用接入到CM-IMS网络中等问题,其中设计接入网关的智能路由支持在IP或TDM中继故障后自动重选,根据实际需求配置中继选路的策略以达到局间通信的可靠性和费用最低的要求。介绍了IMS接入网关的应用及研究现状,阐述Asterisk的具体情况,描述了IMS接入网关智能路由的功能,并给出智能路由的详细设计,路由的属性及数据结构的定义,最后结合 Asterisk 开源项目,实现了智能路由的功能,通过实验成功验证了智能路由按费率、优先级、轮转策略选择中继及号码变换的功能,达到了通信的可靠性及低费用的要求。     

MANET通信网络中基于状态感知与IPSO的路由搜索与优化

报告了MANET网络结构、应用特点以及在路由选择、传输性能自适应方面的现状.针对目前MANET网络节点的智能化程度不高,网络节点及其通信路由的性能参数不能随通信条件适时优化的实际问题,运用状态感知路由选择与免疫微粒群优化算法原理,提出了人工智能与MANET相结合的智能MANET网络结构,论述了智能MANET网络中基于状态感知和免疫微粒群优化算法的路由选择、切换与性能适时优化方法.仿真实验结果表明,该方法的收敛速度与优化质量均优于其它算法.     

传统路由的进阶攻略

正虽然备受瞩目,但智能路由到现在为止还处于"概念股"的阶段,可供我们选择的产品不多,而且在功能层面还有很多值得深入挖掘的空间。因此智能路由更适合首次为家里添置路由器的用户选择。而对已经用上传统路由器的用户而言,通过一系列的进阶设置和优化,传统路由也能"翻译"出很多智能路由所标榜的功能呢。     

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.