计算机数据通信网络安全维护要点分析

计算机数据通信网络安全在维护社会稳定发展方面具有关键意义，只有保障数据传输的效率性与安全性，才能充分满足人们的通信交互需求，提高交流效率。同时数据通信网络安全也是实现计算机网络技术长远发展的重要环节，做好网络安全维护工作有利于提高计算机数据通信网络的稳定性。本文主要围绕计算机数据通信网络展开论述，探讨网络安全问题，就网络安全维护提出了有关的技术要点与建议。     

浅析针对网络安全对策

随着计算机网络的日益普及，网络安全问题日益突出。任何企业、单位在建设及使用网络时都要考虑有关网络安全的问题。文章从计算机网络的特点出发，介绍网络安全背景及其重要性、存在的实际问题，分析网络安全的技术对策。     

浅谈计算机信息技术与网络安全问题

随着计算机网络技术的飞速发展,计算机信息网络安全问题越来越突出.网络安全是一门涉及网络技术、通信技术、信息安全技术、计算机科学、密码技术、应用数学、信息论等多种学科的综合性学科.本文主要从计算机信息网络安全的概念、计算机信息网络不安全因素、计算机信息网络安全的应对策略等三个方便进行了阐述.     

防火墙技术在网络安全中的应用研究

计算机网络安全成为现阶段的关注重点，而防火墙技术是确保网络安全的关键保障措施，因此应加强防火墙技术在网络安全中的应用，提高计算机网络的安全性。基于此，介绍了防火墙技术的概念和类别，并针对防火墙技术在网络安全中的具体应用展开探究，从而为提升计算机网络的安全性提供技术支持。     

浅析计算机网络安全风险评估、控制和预测技术

随着政治、经济、文化的发展,计算机网络技术也得到快速的发展,并且其在人们生活中的作用也越来越重要.伴随着网络技术的发展,网络安全问题也成为网络环境健康发展的关键.本文首先对计算机网络安全的含义和特征,以及计算机网络安全风险评估、控制和预测技术研究的现状进行分析;进而对计算机网络安全的主要问题进行了分析;最后,对计算机网络安全风险评估、控制和预测技术给予了研究.以期为网络技术在我国政治、经济、文化、环境等领域的应用提供理论基础.近年来,随着科学技术的快速发展,计算机网络技术也发展较快,其在人们的生产、生活中的应用也越来越广.但是,当人们利用计算机网络技术进行信息处理的时候,往往会忽略计算机网络安全的关键性,进而导致计算机网络问题频繁出现,网络的安全性受到挑战,最终影响计算机网络技术的应用.因此,计算机网络安全风险评估、控制和预测成为了人们关注的焦点,网络安全问题也成为计算机网络技术发展中亟待解决的问题.本文通过对计算机网络安全问题进行分析,以及对计算机网络安全风险评估、控制和预测技术的进行研究,从而为我国计算机网络技术的发展提出不要的防范措施.     

计算机网络安全与技术防范

现在的计算机网络技术发展很快，就显得网络安全问题日益突出起来。本文从计算机的网络安全与技术防范来展开，阐述了目前常见的几种网络攻击及其防御方法。     

计算机网络信息安全初探

信息安全对经济发展、国家安全和社会稳定的重大影响，正日益突出地显现出来，计算机网络信息的有效性、安全性成为突出的问题。而为了保护计算机网络信息安全，除了运用法律和管理手段外，还需依靠技术的方法来实现。网络安全的基本技术目前主要有：防火墙技术、访问控制技术、网络反病毒技术、网络安全漏洞扫描技术、入侵检测技术、信息加密技术、信息确认技术等。本文通过计算机网络信息安全面临的危险及网络系统安全存在的漏洞，引出加强网络安全管理的各种技术方法，闸述了加强计算机网络信息安全的重要性。     

通信网络安全关键技术

目前在计算机网络安全方面的研究非常热烈，而在通信网络安全方面，安全技术发展还是不能满足需求，通信网络安全服务对象是指在通信网络内流动的所有用户信息和网络息。本文重点讨论的通信网络安全关键技术包括：信息加密技术、通信网络内部协议安全、网络管理安全、内部节点安全策略、通信网入侵检测技术和通信网络安全效果评估技术。同时探讨了各个关键技术的作用、机制和发展趋势。     

浅谈网络安全及防护技术

随着计算机网络的快速发展,网络安全问题也日益突出。本文论述了计算机网络安全的内容,并对当前网络使用的主要安全技术,防火墙技术、加密技术、入侵检测技术进行了分析。     

计算机网络管理与安全探讨

在信息化时代,计算机网络技术已经成为人们生活中的一部分,计算机网络技术也为人们的生活和工作提供了很大的方便,但是,网络安全问题依然给人们带来许多的不便.为了确保计算机网络安全,首先要对网络安全因素进行全面的防治,如病毒因素、黑客因素等,还要在不断更新计算机安全技术的同时加强网络安全管理,对计算机网络用户普及网络安全知识,进而从各方面确保计算机网络环境的安全.     

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。