Assessing impact and quality from local dynamics of citation networks     

Camille Roth  Jiang Wu  Sergi Lozano 《Journal of Informetrics》2012,6(1):111-120

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基于引文分析法的目录学研究现状分析     

周文博  傅荣贤 《图书馆工作与研究》2012,(6):88-91

文章运用引文分析法对2005-2010年间发表的目录学论文进行统计,从引文量、引文学科种类、高被引作者和高被引论文数量及被引次数、共被引次数四个方面分析目录学发展现状,最后运用引文分析的多元统计方法(聚类分析法、多维尺度分析法)探讨目录学研究的不足之处。  相似文献   

2009年以来国外引文分析研究进展     

方胜华  刘柏嵩 《大学图书馆学报》2012,30(1):23-28

引文分析是指采用各种数理统计和逻辑方法对文献的引用频率、模式和图像进行计量研究。该文综述2009年以来国外在引文分析的基础理论、研究方法、研究前沿探测应用、引文指标四个方面的研究进展。  相似文献   

基于学科分类的高校图书馆核心馆藏规律的实证研究——以高等教育学科为例     

蔡璐 《图书情报知识》2012,(4):106-110

本文通过Google Scholar对2002～2007年出版的高等教育类图书进行测定,然后对有学术价值图书产生的要素作者和出版社进行研究,运用层次分析法对作者的身份、年龄、单位机构、出版社等要素设置权重值,由此探究这些要素与有学术价值图书产生的关系,寻找有学术价值图书产生的规律。  相似文献   

No citation advantage for monograph-based collaborations?     

《Journal of Informetrics》2014,8(1):276-283

It is widely believed that collaboration is advantageous in science, for example, with collaboratively written articles tending to attract more citations than solo articles and strong arguments for the value of interdisciplinary collaboration. Nevertheless, it is not known whether the same is true for research that produces books. This article tests whether co-authored scholarly monographs attract more citations than solo monographs using books published before 2011 from 30 categories in the Web of Science. The results show that solo monographs numerically dominate collaborative monographs, but give no evidence of a citation advantage for collaboration on monographs. In contrast, for nearly all these subjects (28 out of 30) there was a citation advantage for collaboratively produced journal articles. As a result, research managers and funders should not incentivise collaborative research in book-based subjects or in research that aims to produce monographs, but should allow the researchers themselves to freely decide whether to collaborate or not.  相似文献   

Referenced Publication Years Spectroscopy applied to iMetrics: Scientometrics,Journal of Informetrics,and a relevant subset of JASIST     

《Journal of Informetrics》2014,8(1):162-174

We have developed a (freeware) routine for “Referenced Publication Years Spectroscopy” (RPYS) and apply this method to the historiography of “iMetrics,” that is, the junction of the journals Scientometrics, Informetrics, and the relevant subset of JASIST (approx. 20%) that shapes the intellectual space for the development of information metrics (bibliometrics, scientometrics, informetrics, and webometrics). The application to information metrics (our own field of research) provides us with the opportunity to validate this methodology, and to add a reflection about using citations for the historical reconstruction. The results show that the field is rooted in individual contributions of the 1920s to 1950s (e.g., Alfred J. Lotka), and was then shaped intellectually in the early 1960s by a confluence of the history of science (Derek de Solla Price), documentation (e.g., Michael M. Kessler's “bibliographic coupling”), and “citation indexing” (Eugene Garfield). Institutional development at the interfaces between science studies and information science has been reinforced by the new journal Informetrics since 2007. In a concluding reflection, we return to the question of how the historiography of science using algorithmic means—in terms of citation practices—can be different from an intellectual history of the field based, for example, on reading source materials.  相似文献   

A comparison of journal similarity across six disciplines using citing discipline analysis     

《Journal of Informetrics》2014,8(4):840-853

A similarity comparison is made between 120 journals from five allied Web of Science disciplines (Communication, Computer Science-Information Systems, Education & Educational Research, Information Science & Library Science, Management) and a more distant discipline (Geology) across three time periods using a novel method called citing discipline analysis that relies on the frequency distribution of Web of Science Research Areas for citing articles. Similarities among journals are evaluated using multidimensional scaling with hierarchical cluster analysis and Principal Component Analysis. The resulting visualizations and groupings reveal clusters that align with the discipline assignments for the journals for four of the six disciplines, but also greater overlaps among some journals for two of the disciplines or categorizations that do not necessarily align with their assigned disciplines. Some journals categorized into a single given discipline were found to be more closely aligned with other disciplines and some journals assigned to multiple disciplines more closely aligned with only one of the assigned disciplines. The proposed method offers a complementary way to more traditional methods such as journal co-citation analysis to compare journal similarity using data that are readily available through Web of Science.  相似文献   

半监督聚类在入侵检测中的应用研究     

周志平  庄金莲  陈佳丽 《南平师专学报》2013,(5):56-60

随着网络的快速发展,入侵检测系统生成的告警信息越来越多,聚类技术广泛的应用于处理告警信息.针对传统的K-Means算法易陷入局部最优,提出一种改进半监督聚类算法ISC.从数据集中抽取若干正常与异常样本分别采用层次聚类算法分别计算作为初始质心辅助K-Means算法进行聚类.实验结果表明,与现有相关算法相比,该算法具有更高的攻击检测率以及更低的误报率.  相似文献   

《河南图书馆学刊》2002-2003年载文及引文分析   总被引：2，自引：0，他引：2  

张立涛 《河南图书馆学刊》2004,24(2):41-43,56

利用文献计量学的方法,对2002-2003年《河南图书馆学刊》所刊载的论文及引文进行了统计分析。  相似文献   

基于引荐分析的国内引用认同领域分析     

周春雷  李冰莹 《数字图书馆论坛》2015,(1)

以国内引用认同研究者为研究对象,借助CnkiRef、Gephi等工具,从引荐分析视角分析了国内引用认同领域的研究景象,揭示出领域经典文献、权威期刊、经典图书和研究主题分布等信息,为相关学者了解该领域的研究现状提供参考,也为丰富引文分析方法提供借鉴。  相似文献