校园网流量异常检测与处理方法

随着校园网日益规模化和复杂化,校园网安全威胁越来越严重,因网络攻击等因素导致网络流量异常时有发生,流量异常检测与处理显得日益重要.本文对校园网络中流量异常进行分类,分析产生各种流量异常的原因,并提出相应的检测与处理方法;针对目前网络攻击异常处理方法存在的不足,从确保校园用户正常业务不受任何影响的前提出发,设计出一种校园...     

ICT: performance evaluation of community development worker’s in South Africa on e-skills*

ABSTRACT

Community development service practitioners have been increasingly burdened with a broader range of responsibilities and ICT could enhance their productivity. Therefore, it is prudent to incorporate information communication technology (ICT) skills into the skills matrix required by the practitioners in order to deliver the service effectively. Furthermore, ICT use is prevalent in almost every organization, therefore, ICT can also serve as a major factor in flexibility of delivery of community development service to the communities, but only if the practitioners possess adequate skills in using ICT tools (software applications) in retrieving, presenting and disseminating valuable and adequate information within the workplace to the parties involved. The study determines the current work conditions, level of performance and expertise in the use of ICT among community development workers (CDWs) in KwaZulu-Natal, South Africa, by evaluating their abilities and experiences, with a view to identify the areas to enhance their effectiveness. Determining the competency of their use of ICT applications is not an easy task; thus a survey methodology was adopted, with a sample of 189 CDWs (63% female and 37% male). Respondents were given the opportunity to rate of their own current ability to use common computer software applications.     

Modeling of electromagnetic band gap structures: A review

This article represents a comprehensive review of the research carried out on analytical and numerical methods modeling of electromagnetic band‐gap (EBG) structures used in around last two decades. Because of the unique characteristics of the surface wave reduction as well as perfect magnetic conductor (PMC) like behavior, the EBG structures have created their separate existence in antenna engineering society. These structures are being widely used in designing of several microwave planar circuits including printed antennas, printed microwave filters, etc. The purpose of this article is to present an inclusive review of analytical methods as well as numerical methods in the context of modeling of EBG‐structures. Such a review process is rarely carried out in the open literature to the best of authors' knowledge. The review exercise might be helpful to the researchers working on modeling of EBG‐structures as well as of EBG‐structured printed antennas, microwave planar filters, etc.     

回溯正向匹配中文分词算法

在最大匹配法（The Maximum Matching Method）的基础上,提出了一种回溯正向匹配（The Backtracking Matching Method）的中文分词方法。该方法首先对待切文本进行预处理,将文本分割成长度较短的细粒度文本;利用正向匹配、回溯匹配和尾词匹配来有效发现歧义字段;利用长词优先兼顾2词簇的方式对交集型歧义字段进行切分。最后对该算法进行的定性分析说明了该方法的先进性,从随机抽取大量语料实验结果上证明了该方法的有效性。     

Engineering the Design of Usable Hypermedia

This paper presents a systematic method for designing hypermedia that are easy to use for various types of users, along with its application to a specific case study. The design phase is supported by the use of task models. We have identified criteria that indicate how information in task models can be used to identify links, design presentations, and structure the data of the hypermedia considered. Different types of users imply different task models and thus different hypermedia designs. We then show how the design obtained was evaluated using both empirical testing and metrics for hypermedia navigation. We discuss the results obtained by these two evaluation methods and how they affected the original design.     

《军队信息安全保密概论》课程教学的探索与实践

对军校本科学员的信息安全保密素质现状进行分析,探讨了课程的内容与特点,并从专题授课、动态更新、案例式教学、现场演示这四个方面,对课程设计与教学方法进行了探索,实践表明,取到了较好的教学效果.     

基于File Mapping的进程间通信中共享内存技术的实现方法

进程间的数据交换和共享是一种非常重要和实用的技术，如何选择恰当的通信方式就成为应用开发中的一个关键问题。本文就基于File Mapping的共享内存技术的实现方法进行了探讨，并针对“内存文件映射”方式编写了进程间通信程序实例。     

多种群粒子群优化算法

将一定规模的粒子群平分成三个子群,并分别按基本粒子优化算法、ω自线性调整策略的粒子群算法和云自适应粒子群算法三种不同规则进化,既保持各个子群和算法的独立性和优越性,又不增加算法的复杂性,并提出“超社会”部分,重新定义了速度更换式子,同时还引入了扩张变异方法和扰动操作。实验仿真结果表明,给出算法的全局搜索能力、收敛速度,精度和稳定性均有了显著提高。     

动态车间作业调度问题中调度规则算法研究综述

调度规则是解决实际生产中的动态车间作业调度问题的有效方法,但它一般只在特定调度环境下性能较好,当环境发生变化时,就需要进行实时选择和评价。对调度规则的实时选择和评价方法进行综述,以研究实际生产中动态车间的实时调度问题。对调度规则的发展、分类以及特点进行了概述,并对调度规则的选择和评价方法进行了总结。详细介绍了调度规则的选择方法,包括使用较多的稳态仿真方法和表现较好的人工智能方法,并给出了仿真方法、专家系统、机器学习方法以及人工神经网络方法,用于调度规则的选择时所取得的研究成果和结论。此外,还介绍了调度规则的评价指标及评价方法。最后针对调度规则存在的不足,指出了未来的研究方向。     

软件工程教学中的团队学习模式研究

本文结合笔者的教学实践,提出团队式的教学组织和学习模式,从课堂教学手段、实践教学安排、学生学习方法、考核方式等多个方面进行阐述并进行了效果分析。