一个基于移动Agent的分布式入侵检测模型

在分析了入侵检测系统的基本状况和移动代理的特点后,指出了目前入侵检测系统存在的不足,提出了基于移动代理的分布式入侵检测模型(MADIDS)。在这个入侵检测系统中,引入了移动代理技术,使入侵检测系统能够跨平台使用;将基于主机和基于网络的检测结合起来,配置多个检测部件代理,各检测部件代理侧重某一方面的工作;并且将所有配置信息存放在数据库中,实现了数据和处理的分离、数据收集、入侵检测和实时响应的分布化。     

一种基于多Agent协同的分布式入侵检测系统模型

在分析了入侵检测系统的基本状况和移动代理的特点后．指出了目前入侵检测系统存在的不足,提出了基于移动代理的分布入侵检测模型（MACDIDS）。在这个入侵检测系统中,引入了移动代理技术,使入侵检测系统能够跨平台使用．实现了数据和处理的分离、数据收集、入侵检测和实时响应的分布化。     

一个基于移动代理的入侵检测系统的研究

本文分析了入侵检测的基本原理和移动代理的特点,根据目前入侵检测系统存在的不足,提出了一种基于移动代理的入侵检测系统模型。该模型具有分布式检测、响应入侵的能力;整个体系可以灵活、动态地配置和方便地扩展;根据数据流量和数据包类型进行数据包的分发和检测算法的转换;在最大程度上追踪入侵源IP,以防范入侵。     

一种基于MA的分布式入侵检测系统研究

分布式入侵检测系统有许多优点,如可测量性和抗破坏性。然而,在具体实施过程中存在着许多障碍。移动代理(MA)技术有着适合分布式入侵检测系统具体实施的许多特性。基于移动代理的分布式入侵检测系统利用移动代理技术同等地处理来自每台被监视主机的信息,然后完成对入侵行为的全局信息提取。本文深入分析了一种基于移动代理的分布式入侵检测系统。     

基于移动代理入侵检测模型的研究

本文提出一种基于代理的入侵检测系统采用了移动代理和多代理合作技术,解决了传统的检测系统数据量过大、对入侵事件反应不及时的问题,它的移动代理技术,起到了主机负载均衡的效果。这个入侵检测系统采用了特征匹配和数据统计相结合的方式对入侵事件进行检测,大大降低了误警率。该检测系统由代理系统、存储系统、控制系统、分析系统和响应系统六部分组成,具有良好的分布性能和可扩展性。它将基于网络和基于主机的入侵检测系统有机地结合在一起,提供集成化的检测、报告和响应功能。     

基于移动代理的入侵检测系统

本文设计了一种基于移动代理的入侵检测系统.它适合作大规模信息搜集和动态处理,特别是在入侵检测系统的信息采集和处理中,即能充分发挥移动代理的特长,又可以提高入侵检测系统的整体性能和功能.     

移动代理在入侵检测中的安全性分析与研究

将移动代理技术引入侵检测这个领域形成了一种新的入侵检测模式。基于移动代理的入侵检测系统存在多种安全威胁,这成为该项检测技术的发展瓶颈。该文分析了基于移动代理的分布式入侵检测系统的工作模式和移动代理的工作过程,结合目前先进的椭圆曲线密码技术,给出了基于移动代理分布式入侵检测系统的一种安全解决方案。     

一个基于移动Agent的分布式入侵检测系统模型

本文分析了当前分布式入侵检测系统中存在的一般性缺陷,介绍了移动Agent的概念和优点,提出一种新的基于移动Agent的分布式入侵检测系统模型DIDSMA。DIDSMA采用分散的数据分析的机制,用静态代理作为主机监视器,用移动代理来收集数据、对数据进行集成和分析,并对入侵做出反应,解决了当前分布式入侵检测系统中存在的主要问题。     

一个基于移动代理的分布式入侵检测系统

将新型分布式处理技术--移动代理与入侵检测融为一体，提出了一种基于移动代理的分布式入侵检测系统(DIDS)的模型；实现了基于此模型的分布式入侵检测系统；采取了一些防范措施来保证分布式入侵检测系统自身的安全；模拟入侵实验表明它能够有效地检测来自网络内外的入侵，并具有良好的灵活性、鲁棒性和可扩展性．     

基于移动代理的入侵检测系统

本文针对传统入侵检测系统普遍存在的缺陷,充分结合移动代理技术,提出了一种基于移动代理的入侵检测系统模型。该系统能对单一主机、多台主机和整个网络进行多层次的检测,整个检测体系可以灵活、动态地配置和方便地扩展。另外,本文还着重讨论了系统部件出现失效时如何自动恢复,使系统更加稳定和可靠。     

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。