Request Dispatching Algorithms for Web Server Clusters Based on Load Balancing

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B/S结构下研究生培养方案制订系统分析设计

针对目前研究生培养方案制订过程的复杂性,提出了一种基于Web和三层B/S模式的研究生培养方案制订系统.该系统成功地解决了学校管理、教师制订培养方案和研究生选择课程三者之间的关系.主要讨论了B/S的结构及其工作原理,设计了系统功能图,其中包括系统控制模块、学生管理模块、教师管理模块、课程管理模块和教室管理模块.该系统的应用保证了研究生培养方案的安全性、稳定性和高效性.     

一个基于语义万维网的应用平台

为了对语义万维网程序提供支持，构建了一个基于语义万维网应用的平台(SWAP)。介绍了SWAP的存储模型，包括对文本文件的支持、数据库的设计和构建；描述了中间层的应用程序接口的设计，举例阐述了存储模型与核心数据结构的转换，并简单介绍了建立在此基础上的语义知识编辑环境这一特殊应用，SWAP系统为语义万维网程序的开发和运行提供了一个完整的平台。     

A Framework of Semantic Information Representation in Distributed Environments

0 IntroductionOonft thhee gcloombaml uinnifcoartimoanti onentiwnofrraksst rhuacstu mread,et ahvea iglraebalte teox puasnesrisolarge number of autonomous data repositories ,however ,these repositories present different structures and semantics result fromthat distinct data sources may use different modeling methodsmaking very difficult to share and exchangeinformation.Recentlythere have been some works ,such as OntoBroker in Ref .[1] ansystemin Ref .[2] ,that focus on the umformrepresentation …     

Integrating Multi-Source Web Records into Relational Database

How to integrate heterogeneous semi-structured Web records into relational database is an important and challengeable research topic. An improved model of conditional random fields was presented to combine the learning of labeled samples and unlabeled database records in order to reduce the dependence on tediously hand-labeled training data. The pro- posed model was used to solve the problem of schema matching between data source schema and database schema. Experimental results using a large number of Web pages from diverse domains show the novel approach＇s effectiveness.     

网络广播的实现及其瓶颈问题的解决

网络广播作为电化教育的新媒在现代网络教学中异军突起 ,其虚拟现实的逼真的教学效果及良好的交互性已引起有关教育技术专家们的高度重视。但网络广播的技术还不成熟 ,其具体实现还有待商榷。本文论述了网络广播的现状、网络广播的相关协议、网络广播软件技术、网络广播的实现、网络广播的技术难点与解决措施 ,特别是针对网络广播实现中的技术难点 ,提出了较为可行而又新颖的解决措施 ,如针对网络广播中的带宽瓶颈问题 ,本文提出了“改进压缩编码方法”、“采用镜像服务器”、“采用边缘服务器”、“采用缓冲服务器”等措施 ,这些措施经过反复实验被证明能从根本上解决问题。     

一个基于Web方式E-Learning教学系统的设计与实现

随着教育信息化的不断深入,计算机文化教育已成为信息社会发展的基本要求本.文章讨论构造一个基于Web方式的E-Learning教学系统"计算机文化基础电子教程"的设计与实现.     

A Chinese Web page clustering algorithm based on the suffix tree

In this paper, an improved algorithm, named STC-I. is proposed for Chinese Web page clustering based on Chinese language characteristics, which adopts a new unit choice principle and a novel suffix tree construction policy. The experimental results show that the new algorithm keeps advantages of STC, and is better than STC in precision and speed when they are used to cluster Chinese Web page.     

Application and realization of hierarchical network planning based on Web

Making use of Microsoft Visual Studio. NET platform, hierarchical network planning is realized in working procedure time-optimization of the construction by TBM. and hierarchical network graph of the construction by TBM is drawn based on browser. Then the theory of system realization is discussed, six components of system that can be reused are explained emphatically. The realization of hierarchical network panning in Internet provides available guarantee for controlling rate of progress in large-scale or middle-sized projects.     

Query through heterogeneous ontologies using association matrix

This paper introduces the definition and calculation of the association matrix between ontologies, h uses the association matrix to describe the relations between concepls ill different ontologics and uses concept vectors to represent queries; then computes the vectors with the association matrix in order to rewrite queries, This paper proposes a simple method of querying through heterogeneous Ontology using association matrix. This method is based on the correctness of approximate information filtering theory; and it is simple to be implemented and expected to run quite fast.