(3) Based on the summarization of the organization methods of subject gateway,The author investigates about 30 Internet subject gateways, 25 of which can bebrowsed and searched by type of resource.
This text is to summarize the core principle and the key technologies of Library 2.0, and tries to put forward a series of proposals on the concrete application of Library 2.0 in some service modules of the library websites such as resource presentation, user instruction, subject gateway construction, etc.
This paper discussed the connotation of subject gateway and analyzes its develop status worldwide and finally demonstrates how subject gateway construction abroad illustrates ours.
The concept of directory is introduced and the main features of directory protocol such as LDAP, WHOIS++ and CIP are analyzed. The application of directory in significant international subject gateway initiatives such as Isaac, ROADS, DESIRE, Imesh Toolkit are studied. The paper tries to explain that directory protocol will play a very important role in distributed indexing and query routing system.
介绍了目录的基本概念 ,分析了 L DAP、WHOIS+ +、CIP目录协议的主要特点 ,研究了国外主要的主题网关项目 (ISAAC、ROADS、DESIRE、Imesh Tool Kit)中目录协议的应用情况 ,指出目录协议在分布式索引、查询路由中起着的重要作用。
Moreover , the paper also discusses the means of accomplishment of collaboration on subject gateways, such as encouraging many institutions to build a subject gateway, strengthening the interoperability of subject gateways, and establishing a national management center of Internet information resources.
This paper has summarized the subject gateway from the aspects of the construction status,document retrieval,and theoretical research to play a constructive role in domestic construction of subject gateway.
In this paper, the concept of "subject gateway" is introduced to the development of the navigational system on digital library, and the idea of developing the system of "Digital Library Resource Subject Gateway (DLRSG)" is presented. As a subproject of "Chinese National Science Digital Library: Library Information Gateway", DLRSG focuses on the organization and order of the resources on digital library resources especially.
This paper mainly discusses the ways of how academic- libraries lo utilize Invisible Web such as using the Invisible Web gateway to establish an appropriate subject gateway according to an library collection development policy, and exploiting a new method to extract information.
Subject gateway is one of the efficiency means to solve the above illogicality, it borrows the concept and technology of commerce information gateway, and improve on a series of traditional theory and technology of literature management.
The subject gateway is a kind of Web - based information service different from the search engine and cooperative catalogue. This paper gives a detailed view of the implementation of the subject gateway with YAHOO- like software ROADS, analyzes the application of Dublin Core and controlled vocabularies on this platform, and points out the developing tendency of library automation software.
The concept of directory is introduced and the main features of directory protocol such as LDAP, WHOIS++ and CIP are analyzed. The application of directory in significant international subject gateway initiatives such as Isaac, ROADS, DESIRE, Imesh Toolkit are studied. The paper tries to explain that directory protocol will play a very important role in distributed indexing and query routing system.
介绍了目录的基本概念 ,分析了 L DAP、WHOIS+ +、CIP目录协议的主要特点 ,研究了国外主要的主题网关项目 (ISAAC、ROADS、DESIRE、Imesh Tool Kit)中目录协议的应用情况 ,指出目录协议在分布式索引、查询路由中起着的重要作用。
First,the text analyses the concepts of subject gateway and quality-controlled subjcet information gateway.Then it infroduces the present situation and problems of quality-controlled subject information gateway construction systematically in China.At last,it puts forward some countermeasures and strategies of information resource construction,software platform developement,and cooperative re- source construction and share.