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1.

Objectives

This study describes the literature of hospital pharmacy and identifies the journals most commonly cited by authors in the field, the publication types most frequently cited, the age of citations, and the indexing access to core journals. The study also looks at differing citation practices between journals with a wide audience compared to a national journal with a focus on regional issues and trends in the field.

Method

Cited references from five discipline-specific source journals were collected and analyzed for publication type and age. Two sets were created for comparison. Bradford''s Law of Scattering was applied to both sets to determine the most frequently cited journals.

Results

Three-quarters of all cited items were published within the last 10 years (71%), and journal articles were the most heavily cited publication type (n=65,760, 87%). Citation analysis revealed 26 journal titles in Zone 1, 177 journal titles in Zone 2, and the remaining were scattered across 3,886 titles. Analysis of a national journal revealed Zone 1 comprised 9 titles. Comparison of the 2 sets revealed that Zone 1 titles overlapped, with the exception of 2 titles that were geographically focused in the national title.

Conclusion

Hospital pharmacy literature draws heavily from its own discipline-specific sources but equally from core general and specialty medical journals. Indexing of cited journals is complete in PubMed and EMBASE but lacking in International Pharmaceutical Abstracts. Gray literature is a significant information source in the field.  相似文献   
2.
This is a study of US-based print media coverage of the indigenous-led uprising in Ecuador which occurred in January 2000. As a result of having mobilized tens of thousands of Ecuadorans, the Confederation of Indigenous Nationalities of Ecuador managed to peacefully force the resignation of a President who had presided over one of the worst recessions in Ecuador's modern history. Nevertheless, most US news dailies covered the affair as if it was purely a military coup and a threat to democracy, in spite of the existence of hundreds of citizen-led, participatory governing councils (called the “People's Parliament,” by Ecuadorans). Previous scholarship on media performance in relation to US foreign policy has proven in a variety of cases to serve as a useful analytical tool and predictive device. This article evaluates the extent that the propaganda model by Edward S. Herman and Noam Chomsky, as well as the indexing model by W. Lance Bennett, are instructive in the case of the news media performance of US which covered the uprising in Ecuador.  相似文献   
3.
智能检索环境下的索引编制   总被引:2,自引:0,他引:2  
阐述了智能检索的实质,分析了智能检索环境下编制索引遇到的障碍,探讨了实现智能检索在编制索引方面应当采取的技术,包括文档预处理技术、元数据和RDF、语义网技术和机器学习。并且举例分析了这些技术的实现问题,同时说明了索引编制的整个过程。  相似文献   
4.
数据库建设的质量控制   总被引:1,自引:0,他引:1  
袁生奎 《青海科技》1998,5(3):35-36
数据库质量是数据库的生命,没有质量,建立起来的数据库就不能联网,就不能上信息高速公路,也谈不上信息资源共享。本文以《青海地方文献数据库》为实例,论述了数据库建设中控制问题,供建库参考。  相似文献   
5.
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   
6.
网络环境信息标引的测评与比较研究   总被引:1,自引:1,他引:0  
网络环境下,文献信息具有数量多、增长快、新词层出不穷等特点。标引是对信息资源进行组织的有效手段和重要环节,标引的质量和效率直接影响信息组织的质量和速度。对受控标引、自由标引和自动标引三种标引方式进行了相符度、专指度、标引深度及通用词数的测试对比.得出自由标引优于受控标引,自动标引优于自由标引及受控标引的结论。  相似文献   
7.
蒋歆 《现代情报》2006,26(11):146-147,151
从分类标引方法,分类标引专指度、完全度、协调度、一致性和差错率等几个方面叙述了分类标引存在的问题,并提出了改善措施。  相似文献   
8.
专著索引   总被引:1,自引:0,他引:1  
对专索引的概念、功用、索引项、类型、编制方式、标引深度、概念提取、标目规范、出处项表示、款目排序和合并、质量控制等问题进行了系统阐述。  相似文献   
9.
数据仓库中数据组织和管理的研究   总被引:2,自引:0,他引:2  
王菲 《情报科学》2002,20(7):727-730
本文着重论术了在数据仓库中如何利用索引技术和对数据库管理的划分来组织和管理数据,以达到对数据仓库性能的优化。  相似文献   
10.
冷伏海 《情报科学》2002,20(3):285-289
本文综述了索引图像的领域和范围、相关工作、图像系统及其工作、索引图像的方式、图像的属性、基于概念的索引、基于内容的索引及其系统的和图像检索中的浏览等问题。  相似文献   
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