共查询到20条相似文献，搜索用时 15 毫秒
1.
《Behavioral & Social Sciences Librarian》2013,32(1):45-51
Many uses exist for the Social Science Citation Index (SSCI) in performing social science research. Depending upon a user's interest and imagination, SSCI can be effectively used to ascertain a scholar's influence in the published research record. By utilizing the citation section of SSCI a researcher can map the scholarly influence a scholar exercises in his/her field. Braudel's influence in the Annales school of historical research and his impact upon the social sciences was mapped by examining SSCI for 1980-1989. This approach can serve as a template for other disciplines and is valuable for scholar and subject bibliographer. 相似文献
2.
《Journal of Informetrics》2020,14(3):101038
Evaluating scholars’ achievements is an important problem in the science of science with applications in the evaluation of grant proposals and promotion applications. Since the number of scholars and the number of scholarly outputs grow exponentially with time, well-designed ranking metrics that have the potential to assist in these tasks are of prime importance. To rank scholars, it is important to put their achievements in perspective by comparing them with the achievements of other scholars active in the same period. We propose here a particular way of doing so: by computing the evaluated scholar's share on each year's citations which quantifies how the scholar fares in competition with the others. We assess the resulting ranking method using the American Physical Society citation data and four prestigious physics awards. Our results show that the new method significantly outperforms other ranking methods in identifying the prize laureates. 相似文献
3.
Richard S.J. Tol 《Journal of Informetrics》2013,7(4):803-810
Quantile kernel regression is a flexible way to estimate the percentile of a scholar's quality stratified by a measurable characteristic, without imposing inappropriate assumption about functional form or population distribution. Quantile kernel regression is here applied to identifying the one-in-a-hundred economist per age cohort according to the Hirsch index. 相似文献
4.
Between 1929 and 2002 over 200 English‐language scientific journals were founded in China. The number of China's English edition journals in each discipline is, however, not correlated to the corresponding output of China's articles listed in the ISI's Science Citation Index. Clearly, the goal of these journals is to be internationally recognized. It is shown that this goal is rarely achieved. We think that lack of good‐quality papers, low international visibility and a citation ‘Matthew effect’ are the main causes for the small role played by China's English‐language journals. 相似文献
5.
The h index is a widely used indicator to quantify an individual's scientific research output. But it has been criticized for its insufficient accuracy—the ability to discriminate reliably between meaningful amounts of research output. As a single measure it cannot capture the complete information on the citation distribution over a scientist's publication list. An extensive data set with bibliometric data on scientists working in the field of molecular biology is taken as an example to introduce two approaches providing additional information to the h index: (1) h2 lower, h2 center, and h2 upper are proposed, which allow quantification of three areas within a scientist's citation distribution: the low impact area (h2 lower), the area captured by the h index (h2 center), and the area of publications with the highest visibility (h2 upper). (2) Given the existence of different areas in the citation distribution, the segmented regression model (sRM) is proposed as a method to statistically estimate the number of papers in a scientist's publication list with the highest visibility. However, such sRM values should be compared across individuals with great care. 相似文献
6.
《Journal of Informetrics》2014,8(1):77-88
One of the flaws of the journal impact factor (IF) is that it cannot be used to compare journals from different fields or multidisciplinary journals because the IF differs significantly across research fields. This study proposes a new measure of journal performance that captures field-different citation characteristics. We view journal performance from the perspective of the efficiency of a journal's citation generation process. Together with the conventional variables used in calculating the IF, the number of articles as an input and the number of total citations as an output, we additionally consider the two field-different factors, citation density and citation dynamics, as inputs. We also separately capture the contribution of external citations and self-citations and incorporate their relative importance in measuring journal performance. To accommodate multiple inputs and outputs whose relationships are unknown, this study employs data envelopment analysis (DEA), a multi-factor productivity model for measuring the relative efficiency of decision-making units without any assumption of a production function. The resulting efficiency score, called DEA-IF, can then be used for the comparative evaluation of multidisciplinary journals’ performance. A case study example of industrial engineering journals is provided to illustrate how to measure DEA-IF and its usefulness. 相似文献
7.
基于期刊引用形象和期刊引用认同的期刊评价 总被引：2，自引：0，他引：2
介绍了期刊引用形象和期刊引用认同的概念;修正了Bonnevie-Nebelong选择的期刊评价指标;对现有期刊评价指标从期刊引用形象和期刊引用认同的角度进行划分;提出了新的期刊引用认同评价指标:新学科扩散指标、新学科影响指标、新即年指标、新引用刊数、新他引率;分析新指标的期刊评价意义;最后以图情领域的三种期刊进行实证分析。 相似文献
8.
《The Reference Librarian》2013,54(48):57-69
The rapidly changing environment in which social science reference librarians serve is forcing many to seek new strategies for coaching researchers through the maze of electronic information sources. This paper discusses the challenges of the automated environment as evidenced by the changing academic scholar's needs and expectations, researcher-librarian relations, and new instructional demands associated with automation. 相似文献
9.
《Journal of Informetrics》2007,1(1):16-25
We propose a simple stochastic model for an author's production/citation process in order to investigate the recently proposed h-index for measuring an author's research output and its impact. The parametric model distinguishes between an author's publication process and the subsequent citation processes of the published papers. This allows us to investigate different scenarios such as varying the production/publication rates and citation rates as well as the researcher's career length. We are able to draw tentative results regarding the dependence of Hirsch's h-index on each of these fundamental parameters. We conjecture that the h-index is, according to this model, (approximately) linear in career length, log publication rate and log citation rate, at least for moderate citation rates. 相似文献
10.
《Journal of Informetrics》2014,8(2):406-418
The journal impact factor is not comparable among fields of science and social science because of systematic differences in publication and citation behavior across disciplines. In this work, a source normalization of the journal impact factor is proposed. We use the aggregate impact factor of the citing journals as a measure of the citation potential in the journal topic, and we employ this citation potential in the normalization of the journal impact factor to make it comparable between scientific fields. An empirical application comparing some impact indicators with our topic normalized impact factor in a set of 224 journals from four different fields shows that our normalization, using the citation potential in the journal topic, reduces the between-group variance with respect to the within-group variance in a higher proportion than the rest of indicators analyzed. The effect of journal self-citations over the normalization process is also studied. 相似文献
11.
《Public Library Quarterly》2013,32(2-3):49-59
The author looks into the future with reeard to the development of technology and how public library sew& will be im~actedT. elecommunications. databases. and scholar's work statioh are explored, as well as ideas on how the public library of the future will need to position itself in order to take full advantage of technology. 相似文献
12.
期刊引用认同指标在期刊评价中的适用性分析 总被引：1，自引：1，他引：0
论文以CSSCI图书情报领域的18种期刊为例,以这些期刊在2009年全年登载论文的参考文献为研究对象,从CSSCI数据库中获取数据,统计分析各期刊的引用认同。结果显示:期刊引用认同指标(引文量、篇均引文量、英文引文比、期刊引用广度、自施引率、引用半衰期、期刊集中因子、认同期刊影响力等指标)与CSSCI来源期刊定量与定性评价指标并不明显相关,但这类指标可以反映期刊载文的内容特征与偏好、对国外科学文献和对其他学科文献的利用程度、期刊的办刊定位、学科的发展模式等等,在综合评价期刊方面具有一定意义。 相似文献
13.
Henk F. Moed 《Journal of Informetrics》2010,4(3):265-277
This paper explores a new indicator of journal citation impact, denoted as source normalized impact per paper (SNIP). It measures a journal's contextual citation impact, taking into account characteristics of its properly defined subject field, especially the frequency at which authors cite other papers in their reference lists, the rapidity of maturing of citation impact, and the extent to which a database used for the assessment covers the field's literature. It further develops Eugene Garfield's notions of a field's ‘citation potential’ defined as the average length of references lists in a field and determining the probability of being cited, and the need in fair performance assessments to correct for differences between subject fields. A journal's subject field is defined as the set of papers citing that journal. SNIP is defined as the ratio of the journal's citation count per paper and the citation potential in its subject field. It aims to allow direct comparison of sources in different subject fields. Citation potential is shown to vary not only between journal subject categories – groupings of journals sharing a research field – or disciplines (e.g., journals in mathematics, engineering and social sciences tend to have lower values than titles in life sciences), but also between journals within the same subject category. For instance, basic journals tend to show higher citation potentials than applied or clinical journals, and journals covering emerging topics higher than periodicals in classical subjects or more general journals. SNIP corrects for such differences. Its strengths and limitations are critically discussed, and suggestions are made for further research. All empirical results are derived from Elsevier's Scopus. 相似文献
14.
Victor Pickard 《传播与批判/文化研究》2013,10(2-3):306-311
This essay considers the meaning of “being critical.” Specifically, it considers how critical scholarship might aim to demystify and contest dominant power arrangements. First I situate my own work within a specific critical tradition and then I discuss the critical scholar's role in society more broadly. I draw from some of these attributes to conclude with a general proposal for a potential project focused on misinformation that may appeal to critical scholars from diverse theoretical backgrounds. 相似文献
15.
Michelle Wilde 《资料收集管理》2013,38(2):102-107
The Local Journal Utilization Report (LJUR) is a customized report about an institution's citation and publishing history. Based on data from the Web of Science database, LJUR can be a useful tool for libraries in a variety of capacities, from informing journal cancellation decisions to quantifying institutional research trends. 相似文献
16.
首先基于对期刊文献资源特点与价值的认识,提出期刊文献数据库计量分析
功能的开发问题;然后,分别从简单计数统计、历时性分析、共时性分析、引
用关系聚类分析、基于期刊专业性指标的计量分析等5个方面,比较全面系统
地阐述了期刊文献数据库计量分析功能的构想;最后,对计量分析功能及其实
现问题进行了简单讨论。 相似文献
17.
The paper introduces a new journal impact measure called The Reference Return Ratio (3R). Unlike the traditional Journal Impact Factor (JIF), which is based on calculations of publications and citations, the new measure is based on calculations of bibliographic investments (references) and returns (citations). A comparative study of the two measures shows a strong relationship between the 3R and the JIF. Yet, the 3R appears to correct for citation habits, citation dynamics, and composition of document types – problems that typically are raised against the JIF. In addition, contrary to traditional impact measures, the 3R cannot be manipulated ad infinitum through journal self-citations. 相似文献
18.
19.
《期刊图书馆员》2012,62(1-4):95-102
The Improving OpenURLs Through Analytics (IOTA) initiative was formed by the National Information Standards Organization (NISO) in 2010 to continue a Mellon-funded project on OpenURL quality begun at Cornell University. IOTA's objective is to develop a scoring system for measuring the quality of OpenURL links generated by content providers at the citation level. OpenURLs have a history of failing to resolve correctly, but no method has been devised to benchmark them even a decade after the introduction of the underlying standard. The proposed system would generate scores based on specific evaluation metrics and thus rate providers' OpenURL quality. The system's analytical approach would also enable OpenURL providers to pinpoint linking problems and thus optimize OpenURL improvements. A public OpenURL analysis tool, which relies on link data contributed by OpenURL providers and libraries, is currently in use. Recently, IOTA approached the Knowledge Bases And Related Tools (KBART) initiative about a possible collaboration on a related project, which would investigate OpenURL linking not at the citation level, but the full-text level. 相似文献