基于XML的网络管理

当前,应用XML相关技术的基于XML的网络管理已经表现出了很多的优势,然而,现有的网络设备都是内嵌SNMP代理,并使用SNMP的管理者。这里将介绍基于XML的网络管理的四种方式,并介绍基于XML的管理者,基于XML的代理和通道等技术。     

基于XML的网络管理

介绍了用XML表示SNMP及Telnet(SSH,SSL)管理信息的方法,提出了一种基于XML的网络管理系统模型,实现了对基于Web代理的网络设备的直接管理,并利用转换网关实现了对基于SNMP代理和Telnet(SSH,SSL)代理的网络设备的管理。     

基于XML网络管理的SNMP/XML翻译网关的开发

作为弥补基于SNMP的网络管理缺陷的一种变通方案,最近已提出了基于XML的网络管理,但现存的很多网络设备都有SNMP代理.为了集成XML和SNMP网络管理,必须提出XML/SNMP网关以进行SNMP到XML的信息翻译.本文首先介绍了使用XML进行网络管理的优点,然后讨论了规范翻译和交互翻译,也给出了这种网关的体系结构.     

基于XML网络管理中多协议转换网关的研究

论文介绍了多协议转换网关的转换算法及系统模型,并利用转换网关对基于XML的网络管理通信模型进行了改进。改进后的基于XML的网络管理系统不但可以管理基于Web代理的网络设备,而且可以管理传统的基于SNMP代理的网络设备及基于Telnet(SSH,SSL)代理的网络设备。     

面向SNMP代理的XML网络管理模型的研究与设计

提出了面向SNMP代理的XML网络管理模型,介绍了模型中各组件的功能,并对关键组件——信息网关的设计进行了详细剖析。该模型将XML技术和SNMP网络管理框架相结合来解决传统SNMP网络管理中管理信息处理效率低和网络管理系统开发效率低等问题。     

通用性转换代理的研究与实现

根据网管软件的现状,对SNMP转换代理存在的通用性问胚进行了较深入的研究,提出通过构造通用适配器和动态载入XML设备模板的方法,实现具有较好通用性的SNMP转换代理,使基于SNMP的网络管理延伸至更广泛的领域。     

基于多个中间件的TMN研究

本文提出一种基于多种中间件技术综合应用的TMN。利用CORBA、Web服务、SNMP协议实现TMN系统中NML（网络管理层）、EML（网元管理层1、SNMPAgent端的交互,将传统层次概念的TMN改进。包括网元SNMP代理封装成相应的Web服务,CORBA／SNMP网关在TMN中应用,并给出了该方案的设计与实现及相应的结果分析。最后指出了利用基于XML技术的网络管理协议（NETCOND代替SNMP协议,实现网络管理的发展方向。     

基于IP多播的SNMP研究

详细分析了基于IP多播实现SNMP网管协议的必要性与可行性，基于UCD-SNMP软件包在Linux环境下研究了实现方法，利用扩展的库所／变迁网对SNMP管理者及代理进行了形式化描述。     

基于Linux的SNMP代理服务器软件的研究与实现

本文介绍了SNMP网络管理协议,详细分析了基于Linux的SNMP代理的原理。并基于HP Agent＋＋软件包,介绍了代理软件的一种实现方法。文中讨论的方法对于SNMP代理软件的设计实现有普遍意义,并已应用在一款路由设备的代理软件的开发过程中,并且大大提高了代理软件的运行效率。     

面向服务的系统主动网管代理的设计和实现

介绍了JMX技术的基本概况,给出了开发网管代理的基本过程，实现了一个基于IMX的SNMP代理。     

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.