基于数据挖掘和规划的智能网络入侵检测系统

本文构建了一个智能化的网络入侵检测系统--SmartNIDS的体系结构。SmartNIDS通过采集网络的数据源和主机的日志数据，利用数据挖掘技术对安全审计数据进行智能的检 测，分析来自网络外部的入侵攻击以及内部的未授权行为，同时结合规划识别的方法识别攻击者的入侵意图，提供实时报警和自动响应，实现一个自适应、智能化的入侵检测和预警系统。     

基于关联规则挖掘的分布式入侵检测系统研究

针对现有应用数据挖掘技术的入侵检测系统存在实时性差、难以提取有效的特征属性、漏报和误报率较高等问题,论文设计了一种基于关联规则挖掘的分布式网络入侵检测模型,阐述了如何从原始审计数据中提取和构造属性集,并将模糊逻辑和增量更新技术结合以提高系统的检测效率、准确性和自适应能力.试验证明了该系统实现的可行性.     

数据挖掘在入侵检测系统中的应用

入侵检测技术已经成为网络安全领域的研究热点。数据挖掘是从大量数据中发掘出新的、有用模式的过程。把它用于入侵检测，可发掘警报日志信息和审计数据特有的模式，实时分析，寻找黑客入侵的规律，提高入侵检测系统的警报精确度，降低系统管理员的工作强度。并给出了基于数据挖掘的入侵检测系统模型。     

智能化入侵检测技术

在分析网络数据多位属性特征模型的基础上，结合当前入侵检测技术的发展现状，给出了网络入侵检测系统采用基于代理的分布式结构，以及利用数据挖掘技术和数据融合技术对于海量网络数据进行处理的解决方案，从大量网络数据中提取用户行为特征，从而提高系统检测的效率。     

一种改进的基于数据挖掘的网络入侵算法

入侵检测系统作为一种主动的信息安全防御措施,有效地弥补了传统安全防护技术的不足,利用数据挖掘善于从大量数据中提取有用规则的特点,提出了一种改进的FP-Growth关联分析算法的网络入侵检测防御系统模型,该方法可以极大地提高数据挖掘的速度和节省数据挖掘中数据存储的空间。     

数据挖掘技术在入侵检测中的应用研究

随着Internet迅速发展，许多新的网络攻击不断涌现。传统的依赖手工和经验方式建立的基于专家系统的入侵检测系统，由于面临着新的攻击方式及系统升级方面的挑战，已经很难满足现有的应用要求。因此，有必要寻求一种能从大量网络数据中自动发现入侵模式的方法来有效发现入侵。这种方法的主要思想是利用数据挖掘方法，从经预处理的包含网络连接信息的审计数据中提取能够区分正常和入侵的规则。这些规则将来可以被用来检测入侵行为。文中将数据挖掘技术应用到入侵检测中，并对其中一些关键算法进行了讨论。最后提出了一个基于数据挖掘的入侵检测模型。实验证明该模型与传统系统相比，在自适应和可扩展方面具有一定的优势。     

数据挖掘在入侵检测系统中的应用

入侵检测技术已经成为网络安全领域的研究热点。数据挖掘是从大量数据中发掘出新的、有用模式的过程。把它用于入侵检测,可发掘警报日志信息和审计数据特有的模式,实时分析,寻找黑客入侵的规律,提高入侵检测系统的警报精确度,降低系统管理员的工作强度。并给出了基于数据挖掘的入侵检测系统模型。     

数据挖掘在入侵检测中的应用

入侵检测是用于检测任何损害或企图损害系统的保密性、完整性或可用性行为的一种网络安全技术。指出当前入侵检测系统存在的问题，并针对现有入侵检测系统漏报、误报率高的问题，提出将数据挖掘技术应用于入侵检测系统。文中论述了常用的数据挖掘算法，提出一个基于数据挖掘技术入侵检测系统模型、描述了模型体系结构及主要功能。实验表明，该模型能提取特征，生成新规则，找到入侵数据，提高入侵检测系统的有效性。     

基于数据挖掘的分布式入侵检测系统

构建了一个基于数据挖掘的分布式入侵检测系统模型。采用误用检测技术与异常检测技术相结合的方法,利用数据挖掘技术如关联分析、序列分析、分类分析、聚类分析等对安全审计数据进行智能检测,分析来自网络的入侵攻击或未授权的行为,提供实时报警和自动响应,实现一个自适应、可扩展的分布式入侵检测系统。实验表明,该模型对已知的攻击模式具有很高的检测率,对未知攻击模式也具有一定的检测能力。     

基于多代理的入侵检测数据收集模型

提出了一种基于多代理(Agent)的入侵检测数据收集模型。该模型建立在基于多代理的系统安全体系结构之上，与系统其他安全机制相结合，根据需要灵活部署代理，利用代理捕捉入侵和可疑事件，同时实现基于主机和基于网络的数据收集，为入侵检测系统(IDS)提供尽可能及时、完整和准确的数据。     

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.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

正~~     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate