基于Internet/Intranet信息网络系统开发平台的研究与实现

构造Intranet平台是Internet应用的一个重要方面,本文以构筑Internet/Intranet网络教室为背景,详细探讨了构造Intranet平台的关键技术和实现方案.     

ProxyServer中Cache的管理和使用

使用Ｃａｃｈｅ可以减少Ｂｒｏｗｅｒ的等待时间和降低代理服务器和Ｉｎｔｅｒｎｅｔ的通信量,本文主要介绍了Ｐｒｏｘｙ对Ｃａｃｈｅ管理和使用。     

应用Web技术建立电力系统信息资源中心

本文根据当前Ｉｎｔｅｒｎｅｔ由初期的信息发布中心向未来的服务中心角色转变的趋势,利用最新的三层Ｃｌｉｅｎｔ／Ｓｅｒｖｅｒ结构、Ｗｅｂ数据库开发技术和交互式动态页面开发技术,论述了已开发成功的基于 Ｗｅｂ的电力系统信息资源中心站点的开发经验。其中重点提出了基于 Ｗｅｂ的计算代理服务的概念,提出利用ＣＧＩ的技术将现有的命令行计算程序无须改变的集成为电力系统计算代理库控件,充分利用其计算能力的方法,并给出了用此方法构造的基于Ｗｅｂ的潮流计算代理的实现和结果。同时文中还介绍了利用 Ｗｅｂ数据库技术实现可提供查询等服务的电力系统参考文档中心、网上资源链接中心、标准资源和应用软件中心、电力系统网上计算代理中心、电气设备参数查询系统和适用于实际部门的电力系统运行方式和参数在线检索中心等。     

WWW上路径模式发掘的研究

本文从互连网发展的趋势入手,对路径模式发掘进行了研究。先简要介绍数据库发掘的概况及网上数据发掘的特点,后结合关联法和组合概率法,并以算法和实例详细对之进行分析。     

基于Web的数据库应用系统的接口技术探讨

本文对目前流行的几中Ｗｅｂ数据库接口方式作了较深入的分析,并给出了一般性的选择建议,最后对Ｗｅｂ ＤＢ系统的发展邮自己的看法。     

RDS在ⅡS上的应用和研究

文章介绍了如何在Windows NT中配置ⅡS,以及RDS在ⅡS上的应用和测试。     

Organized knowledge sharing with book-centered Web sites: An architecture, implementation and analysis

For educators, the World Wide Web offers a valuable technology for knowledge sharing. It can complement more traditional approaches to knowledge sharing such as books and lectures. Here, we identify and differentiate three major approaches for Web-based knowledge sharing: course-centered sites, subject-centered sites, and book-centered sites. A rationale for book-centered sites, those developed to facilitate students’ and instructors’ efforts in courses that use the book, is advanced. We introduce an architecture of features that can guide developers of such sites. This is illustrated by a book-centered site implemented according to the architecture. Several sites for introductory business computing books are compared and contrasted in terms of the architecture, suggesting ways in which each can be extended. This revised version was published online in July 2006 with corrections to the Cover Date.     

The Term Vector Database: fast access to indexing terms for Web pages

We have built a database that provides term vector information for large numbers of pages (hundreds of millions). The basic operation of the database is to take URLs and return term vectors. Compared to computing vectors by downloading pages via HTTP, the Term Vector Database is several orders of magnitude faster, enabling a large class of applications that would be impractical without such a database. This paper describes the Term Vector Database in detail. It also reports on two applications built on top of the database. The first application is an optimization of connectivity-based topic distillation. The second application is a Web page classifier used to annotate results returned by a Web search engine.     

Graph structure in the Web

The study of the Web as a graph is not only fascinating in its own right, but also yields valuable insight into Web algorithms for crawling, searching and community discovery, and the sociological phenomena which characterize its evolution. We report on experiments on local and global properties of the Web graph using two AltaVista crawls each with over 200 million pages and 1.5 billion links. Our study indicates that the macroscopic structure of the Web is considerably more intricate than suggested by earlier experiments on a smaller scale.     

A digital photography framework enabling affective awareness in home communication

By transforming the personal computer into a communication appliance, the Internet has initiated the true home computing revolution. As a result, Computer Mediated Communication (CMC) technologies are increasingly used in domestic settings, and are changing the way people keep in touch with their relatives and friends. This article first looks at how CMC tools are currently used in the home, and points at some of their benefits and limitations. Most of these tools supportexplicit interpersonal communication, by providing a new medium for sustaining conversations. The need for tools supportingimplicit interaction between users, in more natural and effottless ways, is then argued for. The idea of affective awareness is introduced as a general sense of being in touch with one's family and friends. Finally, the KAN-G framework, which enables affective awareness through the exchange of digital photographs, is described. Various components, which make the capture, distribution, observation and annotation of snapshots easy and effortless, are discussed.