基于网络构建稀土化合物物性数据库

Web数据库具有用户界面统一,自动更新,使用方便、利用率高等优点.体系完备、查询方便的Internet稀土化合物物性数据库目前鲜有报道.运用最新的Web技术,选择了数据库的软件集成环境,规划了数据库的总体结构,实现了数据库的查询功能.     

一种基于Web的三维实时显示飞行仿真的实现方法

提出了使用ActiveX控件技术实现基于Web的三维实时显示飞行仿真的实现方法。以无人机的三维实时仿真为例 ,分析了基于Web的三维实时显示飞行仿真软件的开发过程中三维模型的建立、网络通信、虚拟场景漫游等环节的关键技术 ,并给出相应的解决方法。通过实验 ,证明了这种方法是可行的     

Request Dispatching Algorithms for Web Server Clusters Based on Load Balancing

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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.     

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.     

国际互联网技术与旅游业企业过程重组

信息技术、互联网、通讯技术的发展引起了整个旅游业的一场革命,正在深刻地改变着旅游业的经营、管理和运作模式。网络技术的出现则恰好给旅游业的加速发展、企业过程重组带来了新的机遇。文章集中分析了旅游业的信息特征、信息技术、互联网技术引起的旅游业的经营环境变化,提出了旅游服务供应链管理的概念。在此基础上,结合英特网技术在旅游业的功能,提出了旅游业的企业过程重组,建立虚拟旅游公司模式。