共查询到20条相似文献，搜索用时 31 毫秒
1.
主动数据库及其研究现状 总被引：6，自引：0，他引：6
The similarities and differences between an active database and a traditional database are expounded. The general model of an active database and the model of the Active Database Management System are discussed. In the light of the deficiencies of the object-oriented database, the paper probes into the superiorities of combining the active database with the object-oriented database. It also discusses the present situation and the development of the active database as well as the problems to be solved. 相似文献
2.
基于WWW的全文数据库信息服务系统的设计与实现 总被引：4，自引：0，他引：4
With the development of information service industry, establishing the full text database information ser-vice system based on WWW has become a trend. This article introduces a kind of this system, elucidating the technolgies and methods that can be used in the design of this system in detail. Finally, an example is given. 相似文献
3.
网络数据库用户界面的使用便利性研究 总被引：1，自引：0，他引：1
Based on a comparative study of Cambridge Scientific Abstracts' Internet Database Service and OCLC's FirstSearch, this paper discusses the user-friendly interfaces of Web-based databases according to their characteristics such as database selection, search strategy formulation and reformulation, online help and result output. 相似文献
4.
Web数据库技术综述 总被引：7，自引：1，他引：6
Web-Database is the base of many network applications such as Web information retrieval system, Web information publishing and Electronic Commerce. This article focuses on several popular Web-Database technologies such as CGI, ISAPI, IDC, ASP and Java Applet, analyzing and comparing their structure, characteristics, advantages and disadvantages. Finally, it discusses the main structure of the Web-Database technology. 相似文献
5.
中刊库检索效率及其影响因素比较分析 总被引：5，自引：0，他引：5
Based on the retrieval function of the Chinese Journal Database and the China Journal Net Bibliography and Abstract Database, the article analyzes the retrieval results of the two databases and their influence factors for the same retrieval missions. The article also discusses how to construct and evaluate a database. 相似文献
6.
面向对象专家系统的知识表示方法研究 总被引：8，自引：0，他引：8
A method for the construction of an object-oriented expert system with its knowledge database independent of program is introduced. Its knowledge representation,reasoning mechanism, semantic network and frame structure are described in detail. Fimally,the author compares the object-oriented knowledge representation method with the semantic network and frame structure. 相似文献
7.
基于因特网的多媒体远程教学初探 总被引：1，自引：0，他引：1
The paper analyzes the characteristics of a multimedia teleteaching system based on the Internet. It points out how to construct this system, and compares the technologies of connecting it with web databases. 相似文献
8.
《国家科学评论(英文版)》2014,(1)
<正>INTRODUCTION Advances in the technology frontier have resulted in major disruptions and transformations in the enterprise-wide information technology infrastructures.For the past three decades,classical database management systems have maintained a feverish pace in realizing signiicant eiciencies in dealing with the vast amount of information that needs to be maintained to model the operational characteristics of large-scale enterprises.Database research and 相似文献
9.
《国家科学评论(英文版)》2014,(1)
<正>INTRODUCTION Advances in the technology frontier have resulted in major disruptions and transformations in the enterprise-wide information technology infrastructures.For the past three decades,classical database management systems have maintained a feverish pace in realizing signiicant eiciencies in dealing with the vast amount of information that needs to be maintained to model the operational characteristics of large-scale enterprises.Database research and 相似文献
10.
《科学大众》2018,(10)
正The more years you spend in full-time education, the more short-sighted you are likely to be, according to a large UK study.The link appears to be that students have too little exposure to bright natural light—and the antidote suggested by the researchers is for children to spend more of the day outdoors.The study, carried out by Cardiff and Bristol university scientists, analysed information on the genetics, eyesight and educational background of68 000 participants in the UK Biobank database. 相似文献
11.
《中国科学院院刊(英文版)》2003,17(2):88-90
CAS is the highest academicorgan in natural sciencesand a national multi-disci-plinary center for science and high-tech development in China. It is notonly a key component in the nationalsystem of S&T research anddevelopment, but also a vehicle forthe popularization of S&Tknowledge. Acting as a think tankand database, it is endowed with keyduties in spreading scientificknowledge, encouraging scientificspirit, and giving publicity to scien-tific ideas and related methodology.Over the past 50… 相似文献
12.
技术采纳模型文献的计量分析 总被引：1，自引：0，他引：1
技术采纳模型（TAM）是1989年美国学者Davis在理性行为理论（TRA）的基础上,提出的一个专门用于描述用户信息技术采纳和接受行为的模型。本文以CNKI数据库为原始文献来源,对技术采纳模型的相关文献分别从发表年份、刊登期刊、作者合作度、研究领域、研究层次、研究方法、采用变量等方面进行计量分析,为今后的研究和应用奠定基础和提供参考。Abstract： Technology Acceptance Model （TAM） is a model proposed by Davis,an American scholar,based on the Theory of Reasoned Action （TRA） in 1989.It’ s a model used specially to describe the information technology adoption and acceptance behavior of the users.Taking the CNKI database as the original literature sources,this paper makes a statistical analysis of the related literatures of TAM from the aspects of publication year,publication journal,author cooperative degree,research field,research level,research method,and variables adopted in an attempt to lay a foundation and provide reference for future research and application. 相似文献
13.
叙词表在网络环境下的新应用及对我国的启示 总被引：9，自引：1，他引：9
The article first gives a review of the latest development in the application of the thesauri in the network environment, then points out the problems which need extra attention in the development of Internet thesauri. It also ana-lyzes how China is developing Internet theasuri, and points out that if we can solve the problems of the electronic thesauri,they will play a more important role in information organization and retrieval. 相似文献
14.
15.
16.
知识仓库及其在企业管理中的应用 总被引：11，自引：0，他引：11
Building a knowledge warehouse at the enterprise level is the precondition and foundation for the enterprise to put knowledge management into effect and engage in knowledge business. After describing the concept, background and development trend of knowledge warehouse, this paper discusses the composition of knowledge warehouse and the basic re-quirement for constructing the enterprise knowledge warehouse. The main application of knowledge warehouse in enterprise management is also discussed. 相似文献
17.
18.
19.
网络环境下的信息组织研究 总被引：26，自引：1，他引：26
On the basis of the theory and method of conventional literature organization, this paper expounds the development of the theory and method of information organization under the network environment, and discusses how the method of conventional literature organization suits the network information organization and how to construct new methods of information organization according to the characteristics of network information. 相似文献
20.
企业信息系统安全 总被引：2，自引：0，他引：2
With a discussion on the importance of securing the enterprise network information system, this paper analyzes the means by which the hackers attack the enterprise information system. It introduces the key technologies for securing the enterprise information system,and puts forward some important ideas about the security of enterprise information system. 相似文献