书刊附盘管理初探   总被引：4，自引：0，他引：4  

邵小玲  尹屹  严红 《情报理论与实践》2004,27(3):296-297

阐述了书刊附盘的特点及管理模式，探讨了我馆在书刊附盘的加工、著录和管理等方面的具体做法，并指出书刊附盘管理中有待解决的问题。  相似文献   

职称评定中期刊认定的一些问题及解决思路   总被引：1，自引：0，他引：1  

何汶 《情报科学》2004,22(10):1261-1264

本文对当前职称评定工作中的期刊认定所存在的一些问题进行了论述．并提出了相应的解决思路。  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   

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   

论文献类型结构的变革及其对文献资源建设的影响   总被引：2，自引：1，他引：2  

石宝军 《情报科学》1992,13(6):19-25

本文针对文献类型的基本特征及其发展势态、当代文献类型结构体系的比例构成、新技术与新问题、多类型文献功能的更替与协调和文献资源建设的宏观控制等专题进行了系统评述。探讨了文献类型结构的变革给图书情报工作、特别是文献资源建设所带来的一系列新的问题及其相应辨证关系。  相似文献   

Improving the learning of Boolean queries by means of a multiobjective IQBE evolutionary algorithm     

O. Cordón  E. Herrera-Viedma  M. Luque 《Information processing & management》2006

The Inductive Query By Example (IQBE) paradigm allows a system to automatically derive queries for a specific Information Retrieval System (IRS). Classic IRSs based on this paradigm [Smith, M., & Smith, M. (1997). The use of genetic programming to build Boolean queries for text retrieval through relevance feedback. Journal of Information Science, 23(6), 423–431] generate a single solution (Boolean query) in each run, that with the best fitness value, which is usually based on a weighted combination of the basic performance criteria, precision and recall.  相似文献   

元数据在网络信息资源组织与检索中的作用   总被引：6，自引：0，他引：6  

过仕明  靖继鹏 《情报科学》2004,22(12):1455-1457

本文从元数据的定义、本质、结构入手，探讨了元数据在网络信息资源组织和检索方面的作用．并对元数据的未来发展趋势进行了分析。  相似文献   

高校图书馆电子阅览室的服务与管理   总被引：14，自引：1，他引：14  

刘莹 《现代情报》2007,27(7):112-114

文章从高校图书馆出发。具体分析了图书馆提高管理人员的素质、开展优质服务的内容。全面论述电子阅览室的服务模式以及实现电子文献资源有效管理的途径。  相似文献   

In search of query patterns: A case study of a university OPAC     

Eng Pwey LauAuthor Vitae  Dion Hoe-Lian Goh 《Information processing & management》2006

A transaction log analysis of the Nanyang Technological University (NTU) OPAC was conducted to identify query and search failure patterns with the goal of identifying areas of improvement for the system. One semester’s worth of OPAC transaction logs were obtained and from these, 641,991 queries were extracted and used for this work. Issues investigated included query length, frequency and type of search options and Boolean operators used as well as their relationships with search failure. Among other findings, results indicate that a majority of the queries were simple, with short query lengths and a low usage of Boolean operators. Failure analysis revealed that on average, users had an almost equal chance of obtaining no records or at least one record to a submitted query. We propose enhancements and suggest future areas of work to improve the users’ search experience with the NTU OPAC.  相似文献   

试析信息公平与文献资源共享   总被引：1，自引：0，他引：1  

郄少青 《现代情报》2007,27(11):63-64,68

本文从信息公平概念入手，论述了文献信息资源共享对于社会信息公平的重要作用，着眼于信息公平，结合现实，提出了在促进文献资源共享过程中应重点加强的四方面工作。  相似文献