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基于布拉德福定律区域法的学术论文分布研究 总被引:7,自引:1,他引:7
本文以布拉德福定律为理论基础对CNKI数据库中“文献计量学”的论文进行区域分布研究,指出在数据库环境下期刊论文布拉德福定律同样适用,但也表现出一些新的特点。 相似文献
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基于对WEB OF SCIENCE数据库中关于布拉德福定律研究论文的检索结果,从文献数量、著者、期刊、地区、主题、引文情况等几个方面进行了分析,全面系统地反映了布拉德福定律的研究状况和情报学基础理论研究对情报学发展的意义与作用。 相似文献
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基于文献计量学理论建立上海世博会研究文献的数学模型 总被引:1,自引:0,他引:1
通过建立上海世博会研究文献的数学模型,从文献计量学视角描述了本研究领域的文献增长趋势、作者频率分布、高产与核心作者、期刊区域划分等问题。并通过本研究验证了普赖斯定律、洛特卡定律、布拉德福定律。 相似文献
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基于数学建模的我国网络舆情文献研究 总被引:1,自引:0,他引:1
选择CNKI的相关数据库,以2000-2011年网络舆情领域的论文及引文作为数据来源,综合应用logistic文献增长定律、洛特卡定律、齐夫定律、布拉德福定律及相关性研究对网络舆情领域做了定量分析,研究结果表明:我国网络舆情领域论文数量正处于快速增长期,稳定、持续的研究者和研究机构正在形成,但还需要更加深入和高质量的研究才能促使网络舆情研究的创新和发展。 相似文献
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关于布拉德福定律及其应用的若干思考 总被引:1,自引:0,他引:1
通过国内外相关文献的调查研究,对布拉德福定律的产生、发展、应用与局限性进行较为全面的概述,并对其与洛特卡定律的联系和区别进行分析,最后提出其在文献计量学应用中的注意事项. 相似文献
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近年来,我国图书情报界对在图书馆学、文献计量学中具有深远影响的布拉德福(Bradford)定律,给予了很大的重视,进行了广泛的介绍与研究。文献的作者曾强调地指出:“应加强对布拉德福定律理论上的探索,可以使我们在情报科学领域中建立新的数学模型得到借鉴。”这是很有见地的主张。就布拉德福定律而言,自1934年正式问世迄今,一直有两个函数分布,本文拟对此加以简要的介绍与讨论。 相似文献
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This paper describes a study using the citation analysis technique to select journals that would be used in the livestock industry. The study determines the principal journals to which a livestock library should subscribe, thus obtaining the highest possible utility of materials.By using a data base of 114 journals for a period of four years (1980–1983), citation data were applied on the Bradford bibliograph and Bradford-Zipf distribution to determine the ranking of journals in the industry and the “core journals.”It was discovered that the Journal of Animal Science is the most cited journal, with 889 citations, and the core journals were 18 in number, having 11,070 citations representing 32.3% of the total citations. 相似文献
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This paper presents a statistical analysis of the journals and papers abstracted in Population Index, 1984. A Bradford distribution is fitted to the papers in all the journals regularly scanned by Population Index, as well as in the journals specifically designated as demography. The fit of these distributions, and in particular the second one, is remarkably close. A core of journals for demography is identified. A breakdown of the journals and the papers published in them by the journal's field is presented and discussed. Data on the distribution of journals by country of publication are also given. An attempt is made to correlate the journal's productivity according to Population Index with the citation impact according to Social Sciences Citation Index. 相似文献
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The research core of the knowledge management literature 总被引:1,自引:0,他引:1
Danny P. WallaceAuthor Vitae Connie Van FleetAuthor VitaeLacey J. DownsAuthor Vitae 《International Journal of Information Management》2011,31(1):14-20
A bibliometric analysis and a content analysis were conducted to explore the nature of the knowledge management literature. For the bibliometric analysis, three levels of Bradford analysis were used to examine the shape of the knowledge management literature based on 21,596 references from 2771 source publications. Each of the three analyses conformed to the typical curve of the Bradford distribution. For the content analysis, the texts of 630 knowledge management articles were analyzed to address the question of what research methodologies are used in the knowledge management literature. It was found that 27.8 percent of knowledge management-related articles in knowledge management journals used no identifiable research method. Of the remaining 455 refereed articles, 60 percent employed mainstream social sciences research methodologies. The remaining 40 percent of the articles using an identifiable methodology were characterized by the use of “provisional methods” that appeared to substitute for more formally defined or scientifically based research methodologies. 相似文献
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以SSCI数据库创新主题论文为样本,运用国际科学计量学新兴的研究方法,并借助citespace信息可视化软件,确定国际创新研究核心期刊,将对我国创新理论研究以及创新型国家建设具有重要指导意义。依据"布拉德福离散分布定律"原理,确定的创新研究核心期刊主要有:RESEARCH POLICY,INTERNATIONALJOURNAL OF TECHNOLOGY MANAGEMENT、TECHNOVATION,EUROPEAN PLANNING STUDIES等;依据"引文法"确定的创新研究核心期刊主要有:RESEARCH POLICY,JOURNAL of STRATEGIC MANAGEMENT,ACA-DEMIC MANAGEMENTJOURNAL等。从两个不同的角度认定的创新研究核心期刊群,对我国创新型国家的建设和创新理论的发展具有重要的学术价值和意义。 相似文献
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为探究学术期刊分群的测度方法,以我国法学期刊为例,运用网络分析中的"位置"分析、成分分析及结构洞理论,呈现我国法学期刊分群原貌,挖掘群落形成原因,评价各期刊子群及处于关键位置的期刊在法学期刊知识信息流通中起到的作用,并对法学期刊的发展提出建议,最后,从方法论、算法及结果阐释3个方面总结社会网络分析法在学术期刊分群中的独特优势。 相似文献