Discusses the importance of integrating Knowledge Organization Systems (KOS) into digital library architectures and the approaches used at the Alexandria Digital Library (ADL) project, in which the collections of the ADL, knowledge organization systems, and services have been integrated. The agendas for digital library and classification research in relating to KOS are also proposed.
The Library of Congress Subject Headings (LCSH) schema is by far the most commonly used and widely accepted subject vocabulary for general application. It is the de facto universal controlled vocabulary and has been a model for developing new subject heading systems around the world. However, LCSH's complex syntax and rules for constructing headings restrict its application by requiring highly skilled personnel and limit the effectiveness of automated authority control. Recent trends, driven to a large extent by the rapid growth of the Web, are forcing changes in bibliographic control systems to make them easier to use, understand, and apply, and subject headings are no exception. This paper introduces a project of OCLC, the American Libraries Association (ALA), and the Library of Congress (LC) for producing a FAST (Faceted Application of Subject Terminology) schema. The purpose of adapting the LCSH in a faceted schema with a simplified syntax is to retain the very rich vocabulary of LCSH while making it easier to understand, control, apply, and use.
Semantic Web is an extension of the Internet. In the Semantic Web, information is defined explicitly with semantics so that computers may coordinate with human more effectively. The goal of the Semantic Web is to fully utilize the potential of the Internet, and ultimately, to enable computersupported global knowledge exchange through technology. Ontologies play a central role in the development and applications of the Semantic Web. The scope of ontologies goes beyond traditional library classification schemes, philosophy, and knowledge representation. The development and application of Semantic Web technologies have attracted attentions from business marketing, management, and major industries. Research has reported that ecommerce activities rely heavily on ontologies to support browsing, searching, and interoperability in knowledge management. This paper reviews current development of the Semantic Web, including areas of application, major technologies and standards, and trends. A research agenda for the Semantic Web is also discussed.
CORBA is a standard for distributed system developed by the Object Management Group (OMG). It has specific advantage in terms of resolving platform heterogeneity and integrating existing systems. But its intricacy cumbers its widely use in library sphere. This paper discusses the whole process about how to develop a CORBAbased library query system in Java. It intends to be a reference for others in library sphere who are interested in CORBA. This paper also introduces two other common standards——COM/DCOM and SOAP, comparing with CORBA.
OpenURL is a framework for open linking, not only be used for information source integration, but also can integrate many information sources and many services, and then provides context-sensitive services. In this paper, author analyses the OpenURL framework, OpenURL syntax, including the description of context-sensitive and transportation, and discusses the application within information resource integration.
Ｔhe comparison of four kinds of Z39.50 Clients offer libraries a way for how to use Z39.50 Client effectively, and shows some aspects in developing and maintaining Z39.50 Client software more completely and functionally.
The article selects 10 most famous search engines (5 Chinese SEs and 5 English SEs), and from both aspects of quantitative and qualitative, the author measures the performance of the natural language searching on the ten search engines. The aim is to try to offer some theoretical and factual foundation for the further optimization and improvement of search engines.
This paper studies the input recognition and extraction of melodic features. An idea system should include textual, graphical and audio input to meet the needs of users with different levels. The model of input recognition and extraction of melodic features is also proposed.
The author collected and read many Chinese and English materials, hoping that this article can help all the readers acquaint with the Inktomi Corporation and their solutions, as well as the characteristics and the ways to use.
The store and retrieval of digital video documents are important parts of video management. The article analyzes the data model of video in Oracle database, presents an example to show how to store and retrieve the video using Oracle8i interMedia.
The author investigates and analyzes the condition of Tibet information resource and the development trend of the conformity and organization of the information resource at information times and try to advance a new idea to accelerate the innovation of Tibet Website structure,organization,the manner of working,the function of services and so on.
Based on the practice of Subject Information Gateway Management System of library of wuhan technology university, the article analyses the aim of design,the framework,the implementation of function,the key technique and main characters of the system. Moreover, the article puts forward the prospect of Subject Information Gateway Management System.
The kernel of digital right management (DRM) is to lock and limit digital content and its distributing approach in order to prevent digital products from unauthorization copy by security and encryption. This paper discusses Ebook exchange system by DRM technology, and found issuing mode about E-book online.
Access control component has becoming an important module of information service systems in modern library. Based on the research of SiteSearch Internationalization between Tsinghua University Library and OCLC, this paper analyses the Access Component of SiteSearch in detail, concludes the common mechanism of it and gives the method of implementation.
The article first points out the aim and meanings of studying the official electronic documents structural design in China, and ascertains its basic conception and principle,and also studies XML, as a markup language technology. Based on the above, the article educes the structural design step of the official electronic documents in China. That is, setting up the following four logical model: the conceptive model; the semantic model; the XML-described model; the style model.
In order to improve the implement standards of E-Government, avoid investment with blindness and repetition, and intent to share information and cooperate among the parties involved,the paper gives the E-Government Application Frame with three layers based on the E-Government real situations. It introduces the technical means that should be considered and used during the E-Government constructions. At the same time, it provides the technical guides for the E-Government management staff and those technical implement staff as well.
The emergence of competitive intelligence system is an important symbol which means maturity and modernization of competitive intelligence. It is a result of the integration of enterprise information management technology, and it orients the development of enterprise information system. With a international view to the field, this article discusses competitive intelligence system and demonstrates the following topics on competitive intelligence system: the key characters, the essential structure, the typical pattern, the theoretical research, the practice discovery and the future view.
The article introduces some data about CI software from The CI Resource Index, as well as the evaluation of Fuld & Company and SCIP. It discusses the present situation for CI tools abroad, and analyses on the developing tendency.
This article introduces the memory structure of Oracle, shared mechanism and the method of improving access of Oracle in PHP by using bind variable.
Backing up the datum of the ILAS system with tape driver has many defects, such as the incompletion and insecurity of the datum. However, backing up the ILAS system with RAID technique can conduct the overall backup of the system and the datum simultaneously. It ensures the safety of the whole system and the datum.
Laying special emphasis on programming and coding, the article discusses how to design a Web-based Forum in all its aspects, which includes system debugging, system functions, design of databases and its implement, and etc.
Based on personal practice, the paper analyzes a system for management of automatic facility,the aim is to attract people’s attention to facilities management.