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1.
基于被引次数的引文分析无法直接揭示论文的研究内容,利用关键词或从标题、摘要和全文中抽取的主题词很难客观反映论文的被引原因。本文以碳纳米管纤维研究领域的高被引论文为研究对象进行引文内容抽取和主题识别,经人工判读验证：基于引文内容分析的高被引论文识别的核心主题能够较好地揭示高被引论文的被引原因（引用动机）,而且与论文的研究内容相符合;与基于全文、基于标题和摘要的主题识别相比,在引文内容分析基础上识别的主题具有更好的主题代表性,能够有效揭示被引文献的研究内容,是对原文相关信息的重要补充。本文的实验表明基于引文内容分析的高被引论文主题识别是可行而且有效的。图4。表4。参考文献31。  相似文献   

2.
Identifying the future influential papers among the newly published ones is an important yet challenging issue in bibliometrics. As newly published papers have no or limited citation history, linear extrapolation of their citation counts—which is motivated by the well-known preferential attachment mechanism—is not applicable. We translate the recently introduced notion of discoverers to the citation network setting, and show that there are authors who frequently cite recent papers that become highly-cited in the future; these authors are referred to as discoverers. We develop a method for early identification of highly-cited papers based on the early citations from discoverers. The results show that the identified discoverers have a consistent citing pattern over time, and the early citations from them can be used as a valuable indicator to predict the future citation counts of a paper. The discoverers themselves are potential future outstanding researchers as they receive more citations than average.  相似文献   

3.
Review papers tend to be cited more frequently than regular research articles. This fact, together with the continuous increase of the share of reviews in scientific literature, can have important consequences for the measurement of individuals’ research output, usually based on citation analysis. However, studies evaluating the differences in citations of review papers compared to original research articles are almost non-existing in the literature. This paper presents a thorough analysis of the overcitation and overrepresentation of review papers in the most cited papers of the 35 largest subject categories in Science Citation Index-Expanded. Results indicate the average citations received by reviews depends largely on the research area considered, varying from 1.34 to 6.74 times the citations received by original research articles (average value is 2.95). Correlated with this overcitation, there is an important overrepresentation of reviews in the most cited papers, this overrepresentation being greater when the most highly cited papers are considered, i.e. 0.05% and 0.1% most cited papers, where the share of reviews have increased from 16 to 18% in 1990 to around 40% in 2010. Interestingly, the overcitation and overrepresentation in the most cited papers is more important in the areas with the lowest shares of reviews in total publications.  相似文献   

4.
《期刊图书馆员》2012,62(1-2):38-48
ABSTRACT

This article presents a thorough bibliometric analysis of research published in Annals of Library and Information Studies (ALIS), an India-based journal, for the period 2011–2017. Specifically, it compares this journal’s trends with those of other library and information science (LIS) journals from the same geographical area (India, and Asia as a whole) and with the 10 highest-rated LIS journals worldwide. The source of the data used was the multidisciplinary database Scopus. To perform this comparison, ALIS’ production was analyzed in order to identify authorship patterns; for example, authors’ countries of residence, co-authorship trends, and collaboration networks. Research topics were identified through keyword analysis, while performance was measured by examining the number of citations articles received. This study provides substantial information. The research lines detected through examining the keywords in ALIS articles were determined to be similar to those for the top LIS journals in both Asia and worldwide. Specifically, ALIS authors are focusing on metrics, bibliometrics, and social networking, which follows global trends. Notably, however, collaboration among Asia-based journals was found to be lower than that in the top-indexed journals in the LIS field, showing lesser internationalization. The results obtained present a roadmap for expanding the research in this field.  相似文献   

5.
[目的/意义]图书馆学、情报学及档案学(简称“图情档学”)是当代培养新型信息知识人才的重要学科,本文揭示“十三五”期间图情档学科中外期刊论文的研究热点及趋势,以期为我国图情档学科的未来研究提供些许思路,有助于推动图情档学科的发展,提升学术话语权。[方法/过程]选取国内的CNKI和国外的Web of Science数据库为数据来源,以2016-2020年图情档的核心期刊论文为研究样本,运用Citespace、VOSviewer、Gephi等可视化软件,从发文量与被引量、关键词共现及时区分布揭示中外文期刊的研究热点以及发展趋势。[结果/结论]研究发现,“十三五”期间,中文期刊论文的发文量呈逐年略递减趋势,外文期刊论文发文量呈现上升趋势,学科领域的研究逐渐面向国际化;中外期刊论文研究热点呈现研究主题多元化、“图书馆”相关主题研究逐步深化、论文主题紧跟本学科的研究热点与动向,但各有侧重等特点;整体呈现出对传统研究领域的坚守与深化,与其他学科的交叉融合发展,向社会公众领域的拓展的研究趋势。  相似文献   

6.
Bibliometricians have long recurred to citation counts to measure the impact of publications on the advancement of science. However, since the earliest days of the field, some scholars have questioned whether all citations should be worth the same, and have gone on to weight them by a variety of factors. However sophisticated the operationalization of the measures, the methodologies used in weighting citations still present limits in their underlying assumptions. This work takes an alternative approach to resolving the underlying problem: the proposal is to value citations by the impact of the citing articles, regardless of the length of their reference list. As well as conceptualizing a new indicator of impact, the work illustrates its application to the 2004–2012 Italian scientific production indexed in the WoS. The proposed impact indicator is highly correlated to the traditional citation count, however the shifts observed between the two measures are frequent and the number of outliers not negligible. Moreover, the new indicator shows greater “sensitivity” when used to identify the highly-cited papers.  相似文献   

7.
Researchers have investigated factors thought to affect the total number of citations in various academic disciplines, and some general trends have emerged. However, there are still limited data for many fields, including aquatic sciences. Using papers published in 2003–2005 (n = 785), we investigated marine and freshwater biology articles to identify factors that may contribute to the probability of citation and for cumulative citation counts over 10 years. We found no relationships with probability of citation; however, we found evidence that for those that were cited at least once, cumulative citations were related to several factors. Articles cited by books received more citations than those never cited by books, which we hypothesized to be indicative of the impact an article may have in the field. We also found that articles first cited within 2 years of publication received more cumulative citations than those first cited after 2 years. We found no evidence that self‐citation (as the first citation) had a significant effect on total citations. Our findings were compared with previous studies in other disciplines, and it was found that aquatic science citation patterns are comparable to fields in science and technology but less so to humanities and social sciences.  相似文献   

8.
[目的/意义]对我国图书情报学在国际权威期刊上发表的文章主题特点进行研究。[方法/过程]对文献关键词进行整体分析,根据发文量的变化情况分为三个阶段,梳理出总体研究热点。进一步对三个阶段中发文数量最多、上涨速度最快的阶段进行细粒度划分,基于关键词共现方法分析研究主题的时序变化情况。[结果/结论]我国学者在国际上的研究主题集中、多样化程度低,近十年来科学计量学、社会网络主题发展迅速,知识组织和管理主题的研究热度长久不衰。  相似文献   

9.
以CSSCI收录的1999-2011年的769篇学科知识服务的研究论文为数据源,应用CiteSpaceⅡ可视化软件绘制知识图谱,析出国内学科知识服务研究领域的代表作者及经典文献,应用关键词聚类和突现词探测功能分析研究热点与前沿。以被引频次为基础,综合考虑突现和中心性,列出该领域的11位代表作者。8篇关键节点文献很好地展现了该领域的两个发展阶段及其演进路径。15个高频关键词和14个突现词表征了研究热点与前沿。  相似文献   

10.
Nations can be distinguished in terms of whether domestic or international research is cited. We analyzed the research output in the natural sciences of three leading European research economies (Germany, the Netherlands, and the UK) and ask where their researchers look for the knowledge that underpins their most highly-cited papers. Is one internationally oriented or is citation limited to national resources? Do the citation patterns reflect a growing differentiation between the domestic and international research enterprise? To evaluate change over time, we include natural-sciences papers published in the countries from three publication years: 2004, 2009, and 2014. The results show that articles co-authored by researchers from Germany or the Netherlands are less likely to be among the globally most highly-cited articles if they also cite “domestic” research (i.e. research authored by authors from the same country). To put this another way, less well-cited research is more likely to stand on domestic shoulders and research that becomes more highly-cited is more likely to stand on international shoulders. A possible reason for the results is that researchers “over-cite” the papers from their own country – lacking the focus on quality in citing. However, these differences between domestic and international shoulders are not visible for the UK.  相似文献   

11.
苏新宁 《情报学报》2007,26(3):373-383
本文是对2000～2004年间CSSCI所收录的21400多篇图书馆、情报与文献学学科论文标引的关键词以及这些论文引用频率较高的论著的分析成果。通过对五年中高被引论著的主题分析,以及论文高频关键词统计分析,总结了该学科研究热点,通过对各年度关键词数量上的变化情况,分析了本学科的研究热点趋势。  相似文献   

12.
Delayed recognition is a concept applied to articles that receive very few to no citations for a certain period of time following publication, before becoming actively cited. To determine whether such a time spent in relative obscurity had an effect on subsequent citation patterns, we selected articles that received no citations before the passage of ten full years since publication, investigated the subsequent yearly citations received over a period of 37 years and compared them with the citations received by a group of papers without such a latency period. Our study finds that papers with delayed recognition do not exhibit the typical early peak, then slow decline in citations, but that the vast majority enter decline immediately after their first – and often only – citation. Middling papers’ citations remain stable over their lifetime, whereas the more highly cited papers, some of which fall into the “sleeping beauty” subtype, show non-stop growth in citations received. Finally, papers published in different disciplines exhibit similar behavior and did not differ significantly.  相似文献   

13.
章对2005年至2009年《数字图书馆论坛》中的载文、关键词、作者、引文、基金文章等指标进行了统计分析,根据数据统计出的结果揭示了《数字图书馆论坛》创刊五年来的发展趋势。  相似文献   

14.
通过对ESI(Essential Scientific Index)数据库收录的近10年来有关计算机领域的文献进行计量分析,得出计算机领域高生产力和高影响力的国家机构、期刊和作者的分布,并对计算机领域高被引文章和热门文章进行期刊和作者分析;最后,对高被引作者利用SPSS统计软件进行共被引研究,并提供近10年来计算机科学领域的主要研究主题和作者的集群分布。  相似文献   

15.
基于高被引论文的《中国图书馆学报》研究   总被引：1，自引：0，他引：1  
文章以《中国图书馆学报》被引频次超过20次的作者及论文为研究对象,对发文年度、作者、被引文多产作者、机构、地区以及主题等分布情况进行了统计,客观揭示了《中国图书馆学报》和图书馆学学科的发展现状,指出图书馆学领域的研究热点和发展方向,为图书馆学研究者开展更深入的研究提供参考和依据。  相似文献   

16.
定义和比较“引文”和“引用”两个紧密相关而又相互独立的概念,并基于Journal of Informetrics（JOI）期刊中的论文数据进行相关的实证分析。通过从JOI期刊全文数据中识别出在正文中出现的引用信息,统计文章中引用个数的分布情况,计算引用个数与引文篇数之间的相关系数,分析引用和引文之间的多对多关系,并提出一种新的加权的计算引文总被引次数的方法。结果表明,这种方法可以更早地识别出最新发表的高被引论文,因此在科学预见和科学评价方面具有重要的应用价值和前景。  相似文献   

17.
[目的/意义]对图书情报领域的国际发文情况、研究热点以及学科前沿进行研究,有助于推动图情学科的发展,提升我国学术话语权。[方法/过程]以SCI和SSCI收录的图书情报领域高影响力外文期刊论文为数据源,利用HiStCite、CiteSpace、SPSS等工具从研究现状、高影响力学者、高被引论文、研究热点、前沿趋势5个方面分析近5年来(2016-2020年)图情领域的发展状况。通过对高频关键词的年度变化分析,总结四种呈现不同态势的关键词,并对低频关键词进行透视,得出人文、技术和管理三个维度的发展主题。[结果/结论]随着信息技术的不断发展和信息环境的不断变化,图情学科研究主题由传统信息服务向知识服务,由知识组织与管理相关研究向知识组织体系构建等研究主题进一步延伸和细化,且注重理论和实践相结合已日渐成为图情档学科研究的重要趋势。  相似文献   

18.
Scientific papers are usually assessed by a number of direct citations. The number of citations received by direct citations (2nd generation citations) has been considered as an alternative criterion of evaluation. Such an approach overrates the papers, which received citation(s) in one or in a few very highly cited papers. Hirsch-type approach to the 2nd generation citations suggested by Schubert was used to combine the impact and quantity of 1st generation citations into one number.  相似文献   

19.
哪些因素会影响学术论文的被引次数是文献计量学领域的一个经典研究议题。目前的研究主要关注论文的内容特征和形式特征与被引次数之间的关系,鲜有研究从文本可读性视角切入这一议题。文本可读性影响读者对文本内容的理解和知识吸收,是一个关乎知识传播效率和研究成果认可度的重要因素。本研究在控制论文知识品质和权威性的基础上,使用文本可读性R值等五个变量研究论文的文本可读性对被引次数的影响。以中文图书情报学知名期刊发表于2016—2020年的论文为研究样本,研究发现论文的文本可读性R值、是否采用复合式标题、是否使用公式和表格对被引次数有显著影响,而是否使用图对被引次数没有显著影响。研究验证了中文情境下文本可读性对论文影响力的实质性作用,研究结果对科研人员改善自身的中文学术写作以及提高研究成果影响力具有重要参考价值。  相似文献   

20.
[目的/意义]在学术交流日趋国际化的背景下,本文拟探索引文国际化与被引量之间的关系,力图回答良好的国际视野是否有助于提升论文的学术影响力这一学界普遍关注的问题。[研究设计/方法]以社会科学为研究对象,选取管理学、图书情报学和新闻传播学的181,406篇CSSCI论文为研究样本,采用相关分析、非参数检验与回归分析的方法研究引用外文期刊论文的数量、学术质量、学科领域、时效性对论文被引量的影响。[结论/发现]在控制了文献类型、期刊声誉等若干可能影响论文被引量的因素后,发现样本论文的引文国际化水平对其被引量具有显著的正向影响。具体而言,引用外文期刊论文的数量越多、平均学术质量越高、学科专属度越高、平均时效性越强的论文具有更高的被引量。[创新/价值]证实了国际视野有助于提升中文社科论文的学术影响力,并提出了有针对性的建议。  相似文献   

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