2001年《情报科学》载文、作者及引文的统计分析   总被引：7，自引：3，他引：7  

吕福谦 《情报科学》2003,21(11):1173-1175

本文运用文献计量学的方法，对2001年出版的《情报科学》载文、作者及引文的统计分析，阐述了该刊载文特点、作者及引文特点。  相似文献   

A citation-based document retrieval system for finding research expertise     

Quan Thanh Tho  S.C. Hui  A.C.M. Fong 《Information processing & management》2007

Current citation-based document retrieval systems generally offer only limited search facilities, such as author search. In order to facilitate more advanced search functions, we have developed a significantly improved system that employs two novel techniques: Context-based Cluster Analysis (CCA) and Context-based Ontology Generation frAmework (COGA). CCA aims to extract relevant information from clusters originally obtained from disparate clustering methods by building relationships between them. The built relationships are then represented as formal context using the Formal Concept Analysis (FCA) technique. COGA aims to generate ontology from clusters relationship built by CCA. By combining these two techniques, we are able to perform ontology learning from a citation database using clustering results. We have implemented the improved system and have demonstrated its use for finding research domain expertise. We have also conducted performance evaluation on the system and the results are encouraging.  相似文献   

A relevance feedback mechanism for cluster-based retrieval     

Niall Rooney  David Patterson  Mykola Galushka  Vladimir Dobrynin 《Information processing & management》2006

Contextual document clustering is a novel approach which uses information theoretic measures to cluster semantically related documents bound together by an implicit set of concepts or themes of narrow specificity. It facilitates cluster-based retrieval by assessing the similarity between a query and the cluster themes’ probability distribution. In this paper, we assess a relevance feedback mechanism, based on query refinement, that modifies the query’s probability distribution using a small number of documents that have been judged relevant to the query. We demonstrate that by providing only one relevance judgment, a performance improvement of 33% was obtained.  相似文献   

信息素质教育的发展及优化策略   总被引：19，自引：0，他引：19  

魏浩  张文娟 《情报科学》2004,22(3):291-294,298

本文通过对国外信息素质教育现状及国内信息素质教育状况的分析，提出影响国内信息素质教育的瓶颈，进而提出我国信息素质教育发展的优化策略。  相似文献   

Incorporating blockchain technology in information systems research     

《International Journal of Information Management》2023

In this Editorial Note for the special issue on "Incorporating Blockchain Technology in Information Systems Research," we first focus on the need on conducting blockchain research in the information systems field. We briefly describe the nine outstanding articles that were selected for publication in this special issue. The editorial note ends with a research agenda for future scholars interesting in studying the blockchain phenomenon.  相似文献   

如何界定情报信息的寿命   总被引：1，自引：0，他引：1  

刘衍双  史蔷 《情报科学》2004,22(3):276-278

本文以传统情报文献信息与现代情报信息的特性差异为切入点，认真分析了情报文献信息内涵的变化与发展，比较与求证决定情报文献信息寿命的诸多要素，最终导出科学的情报信息寿命观，这对于正确指导现代网络环境下情报信息工作的实践具有重要意义。  相似文献   

信息技术对传统产业结构影响分析   总被引：6，自引：0，他引：6  

刘虹涛  靖继鹏 《情报科学》2002,20(3):333-336

信息技术由于其具有的广泛性和渗透性，在传统产业改造中，能加快传统产业的产品更新周期，提高资源利用效率，改变需求结构、产品结构，提高质量，降低成本，增进局部乃至整体企业、行业的经营整理效率，从而促进传统产业结构的改变。  相似文献   

参考咨询服务在信息时代的拓展   总被引：13，自引：0，他引：13  

王玉波 《情报科学》2004,22(2):172-174

文章首先论述了信息时代参考咨询服务的发展走向，然后论述了面临新的环境，参考咨询服务必须拓展服务方式、服务内容。  相似文献   

质量——信息资源可持续发展的关键     

林芗  余芳 《情报科学》2002,20(8):828-829,841

文章论述了信息资源的可持续发展，分析其中关系，着重指出关键是信息质量，并提出两点解决问题的办法。  相似文献   

论提高中文搜索引擎质量的途径   总被引：11，自引：0，他引：11  

焦微玲 《情报科学》2002,20(1):100-102

随着网络信息数量的迅猛增长，搜索引擎的网络导航作用日益增强，然而搜索引擎自身也存在“信息过载”、“信息超量”的现象，如何克服上述现象，向用户提供数量适宜、质量优良的信息是目前迫切需要解决的问题。本文立足于本文搜索引擎，在分析了我国搜索引擎的发展状况和存在的问题之后，简单论述了可以提高中文搜索引擎质量的几条途径。  相似文献