• Journal of Information Science Theory and Practice
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• 제3권2호
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• pp.42-57
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• 2015

Purpose. : The present study is an attempt to find out the impact of self-citations on Impact Factor (IF) across disciplines. The study examines the number of research articles published across 27 major subject fields covered by SCImago, encompassing as many as 310 sub-disciplines. The study evaluates aspects like percentage of self-citations across each discipline, leading self-citing countries and continents, and the impact of self-citation on their IF. Scope. : The study is global in nature, as it evaluates the trend of self-citation and its impact on IF of all the major subject disciplines of the world, along with countries and continents. IF has been calculated for the year 2012 by analyzing the articles published during the years 2010 and 2011. Methodology/Approach. : The study is empirical in nature; as such, statistical and mathematical tools and techniques have been employed to work out the distribution across disciplines. The evaluation has been purely under-taken on the secondary data, retrieved from SCImago Journal and Country Ranking. Findings. : Self-citations play a very significant part in inflating IF. All the subject fields under study are influenced by the practice of self-citation, ranging from 33.14% to 52.38%. Compared to the social sciences and the humanities, subject fields falling under the purview of pure and applied sciences have a higher number of self-citations, but a far lesser percentage than the social sciences and humanities. Upon excluding self-citations, a substantial amount of change was observed in the IF of subject fields under study, as 18 (66.66%) out of 27 subjects fields faced shuffle in their rankings. Variation in rankings based on IF with and without self-citation was observed at subject level, country level, and continental level.

• Journal of Information Science Theory and Practice
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• 제5권2호
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• pp.48-61
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• 2017

This paper uses 601 cited papers of Pakistani LIS researchers with the purpose to examine the individual performance of these Library and Information Science (LIS) researchers in terms of their research output and its impact on the LIS (national/international) literature by using various bibliometric indicators. A list of 139 authors was compiled with the help of the Library, Information Science, and Technology Abstracts (LISTA) and some other sources. Data were collected from Google Scholar and SPSS version 20 was utilized in order to identify the relationship between self-citations and various performance indices of the authors. The average citations received per paper vary from 1.80 to 10.08. About half of the papers were single-authored whereas less than one-fifth were by three or more authors. The authors who worked in collaboration produced more papers and received more citations. The h-index, g-index, hI-index, hI-norm, and e-index were used to determine the rank for each author. The intra-group citations grid revealed the volume of self-citations and a small group who cite each other more due to close academic and social relationships. The correlations between self-citations and the impact indices used revealed significant differences. Findings are useful for concerned institutions regarding award, promotions, etc. Further, future research should seriously consider the self-citations and social networking of authors while examining their citations-based research performance.

• Journal of Korean Neurosurgical Society
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• 제40권4호
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• pp.300-303
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• 2006

The authority and reputation of a medical journal is based on the number of received citations. Korean Medical Citation Index [KoMCI] provides information about citations of Korean medical journals since 2002. All six issues of KoMCI [from 2000 to 2005] were used for analysis. Citations, impact factor, and their changes were evaluated. We compared the data of Journal of Korean Neurosurgical Society[JKNS] with other Korean medical journals. The impact factor[IF] of 2005 maintained increased value since 2004, although the impact factor excluding self citation[ZIF] returned previous low value. Improvement in proportion of Korean citations and in proportions of non-self received citations were encouraging changes. Although there were some improvements, the status of JKNS with respect to ZIF is still behind other Korean medical journals selected for comparison. Improvement of the status of JKNS by aid of KoMCI and enhanced reputation of KoMCI by its positive influence on JKNS or other Korean medical journals will be beneficial to members and medical societies of Korea.

• Journal of Information Science Theory and Practice
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• 제9권3호
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• pp.56-75
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• 2021

We introduce a new research assessment measure, called the research excellence index. The measure, which we denote by RE-index, accurately assesses the research performance of a researcher. The methodology used in deriving the RE-index tackles many of the flaws of popular research performance indicators such as publication counts, citation counts, and the h and g indices. A dataset is introduced, which takes advantage of the wide coverage of Scopus and the Library of Congress, and, at the same time, deals with the Scopus database depth problem. For an academic publication x, a prestige-type and length scores are assigned, and if x is published in an academic periodical publication J, the stature of J is identified through a quartile score. The three scores are used to assign a value score to every academic publication, and cited academic publications are given citation scores that encompass both cases of including and excluding self-citations. The foregoing scores are used to derive another set of scores measuring the combined qualitative and quantitative aspects of the creative work, citations of creative work, informative work and citations of informative work of a researcher. The scores take into consideration co-authorship. From these scores, two versions of the RE-index for a researcher are derived, covering the cases of including and excluding self-citations. The new measure is calculated for two mathematicians.

• Radiation Oncology Journal
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• 제24권4호
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• pp.309-316
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• 2006

목 적: 최근 6년간 한국의학학술지 인용색인 정보(KoMCI)를 분석하여 대한방사선종양학회지의 학술 인용 추이를 알아보고 학술지 영향력 지표(IF) 개선방안을 찾아보고자 하였다. 대상과 방법: 2000년에서 2005년까지 KoMCI 자료에서 대한방사선종양학회지의 연간 게재 논문 수, 인용한 국내외 참고 문헌 수, 자체 및 타 학술지의 인용 빈도, 대한방사선종양학회지를 인용한 다른 국내 학술지 종류, IF 및 자체 학술지 인용을 제외한 영향력 지수(ZIF) 등의 변화를 알아보고, 이를 KoMCI 등재 국내 학술지 평균과 비교하여 학술 인용 색인 추이 변화 양상의 차이를 살펴보고 IF 개선을 위한 방안을 찾아보았다. 결 과: 연간 게재 논문 수의 감소는 국내 학술지 전반에 걸쳐 공통된 현상이었고, KoMCI 등재 국내 학술지 평균에서는 32%, 대한방사선종양학회지에서는 최대 38%의 감소 추세였다. 논문당 국내 논문 인용빈도는 KoMCI 학술지 평균치는 2.0편에 비해 조금 낮은 1.6편이었다. 대한방사선종양학회지의 논문당 전체 발간 논문에 대한 인용 빈도는 1.333으로 KoMCI 학술지 평균 1.694에 비해 낮았으나, 2000년의 1.000에 비해 20005년에는 1.670으로 67% 증가하였다. 논문당 자체 학술지 인용은 KoMCI 학술지 평균에서는 전체 인용빈도의 61%였으나, 대한방사선종양학회지에서는 72%로 조금 더 높았다. 6년간 대한방사선종양학회지의 IF값은 2000년의 0.144에서 2003년 0.107까지 감소 후 2005년에는 0.203으로 개선되었다. 자체 학술지 인용을 배제한 ZIF값은 2004년의 0.044를 제외하고 2000년의 0.038에서 2005년의 0.013으로 감소 경향이었다. 결 론: 대한방사선종양학회지의 IF는 점진적 개선되고 있으나, 매우 작은 인용빈도를 바탕으로 산출된 한계가 있다. 자체 학술지 인용을 보다 적극적으로 확대하고 타 학술지로부터의 인용증대를 위한 노력(교차인용 확대 및 영문 논문 게재 증가)들이 지속적인 학회지의 IF 개선에 필요하며, 이를 위해 학회 회원들의 학술지 IF 중요성 인식 및 개선에 대한 적극적인 홍보 노력이 요구된다.

• Journal of Gastric Cancer
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• 제16권1호
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• pp.8-13
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• 2016

Purpose: The aim was to verify if changing the Journal of Gastric Cancer (JGC) to only English (starting in December 2010) was successful based on bibliometrics. Materials and Methods: The following indicators were retrieved or calculated from the journal homepage and the Web of Science Core Collection on January 30, 2016: the number of citable articles per year; the number of original articles funded; the national origins of the editorial board members and authors; the total citations; the impact factors; the national origins of authors citing the journal; the source titles of articles citing the journal; and the Hirsch index. Results: From 2011 to 2015, the number of citable articles per year was 40, 41, 39, 39, and 40. The proportion of original articles funded was 39 out of 113 articles (34.5%). The editorial board members were from seven countries. The authors were from 11 countries. The total citations increased from 1 in 2011 to 245 in 2015. From 2013 to 2015, the impact factors (without self-citations) were 1.42, 1.36, and 1.60. In 2014, the value 1.60 corresponded to the ranking of 157 out of 210 oncology journals (74.8%); It was cited from 46 countries. Top-ranking countries of citing authors were China (171), Korea (158), and Japan (75). The number of source titles citing the journal was more than 100. The Hirsch index was 12. Conclusions: The English-only language policy, which started in December 2010, was successful in promoting the JGC to international levels from the perspective of bibliometric analysis.

• International Journal of Knowledge Content Development & Technology
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• 제5권1호
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• pp.15-32
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• 2015

This article analyzes motivations behind social sciences blog posts citing journal articles in order to find out whether blog citations are good indicators for the societal impact or benefits of research. A random sample of 300 social sciences blog posts (out of 1,233 blog posts) from ResearchBlogging.org published between 01/01/2012 to 18/06/2014 were subjected to content analysis. The 300 blog posts had 472 references including 424 journal articles from 269 different journals. Sixty-one (22.68%) of all cited journals were from the social sciences and most of the journals with high frequency were highly cited general science journals such as PNAS and Science. Seventy-five percent of all journals were referenced only once. The average age of articles cited at the time of citation was 5.8 years. Discussion and criticism were the two main categories of motivations. Overall, the study shows the potential of blog citations as an altmetric measure and as a proxy for assessing the research impact. A considerable number of citation motivations in blogs such as disputing a belief, suggesting policies, providing a solution to a problem, reacting to media, criticism and the like seemed to support gaining societal benefits. Societal benefits are considered as helping stimulate new approaches to social issues, or informing public debate and policymaking. Lower self-citation (compared to some other altmetric measures such as tweets) and the fact that blogging involves generating content (i.e. an intellectual process) give them an advantage for altmetrics. However, limitations and contextual issues such as disciplinary differences and low uptake of altmetrics, in general, in scholarly communication should not be ignored when using blogs as a data source for altmetrics.

• 한국비블리아학회지
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• 제22권4호
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• pp.361-379
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• 2011

이 연구는 국내 인용 데이터베이스에서 저널 페이지랭크를 올바르게 측정할 수 있는 방안을 모색하고자 하였다. 국내 인용 데이터베이스는 해외 인용 데이터베이스에 비해서 인용 링크가 외부로 향하는 비율과 자기 인용 비율이 높다는 특성이 있다. 페이지랭크 공식은 반복 계산을 통해서 수렴하는 알고리즘이기 때문에 이런 특성을 감안하지 않으면 신뢰할만한 저널 페이지랭크 측정이 이루어질 수 없다. 따라서 국내 인용 데이터베이스에 적합한 저널 페이지랭크 측정 방안을 살펴보고 KSCD를 대상으로 측정한 결과를 분석하였다. 산출된 페이지랭크 지수에 대해서 상관분석과 회귀분석으로 검증해본 결과 SCImago 저널 랭크 공식을 적용하고 cr2 방식으로 저널 자기 인용을 조정하는 것이 국내 인용 색인 데이터베이스에서 저널 영향력을 평가하기에 적합한 방안인 것으로 확인되었다.

• Clinical and Experimental Reproductive Medicine
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• 제41권4호
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• pp.147-150
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• 2014

Objective: Clinical and Experimental Reproductive Medicine (CERM) converted its language to English only beginning with the first issue of 2011. From that point in time, one of the goals of the journal has been to become a truly international journal. This paper aims to identify the position of CERM in its scholarly journal network based on the journal's metrics. Methods: The journal's metrics, including citations, countries of author affiliation, and countries of citing authors, Hirsch index, and proportion of funded articles, were gathered from Web of Science and analyzed. Results: The two-year impact factor of 2013 was calculated at 0.971 excluding self-citation, which corresponds to a Journal Citation Reports ranking of 85.9% in the category of obstetrics and gynecology. In 2012, 2013, and 2014, the total citations were 17, 68, and 85, respectively. Authors from nine countries contributed to CERM. Researchers from 25 countries cited CERM in their articles. The Hirsch index was six. Out of 88 original articles, 35 studies received funds (39.8%). Conclusion: Based on the journal metrics, changing the journal language to English was found to be successful in promoting CERM to international journal status.

• 정보관리학회지
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• 제38권4호
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• pp.65-82
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• 2021

이 연구의 목적은 연구소프트웨어의 공유, 재사용, 인용 현황을 분석하는 것이다. 학술커뮤니케이션에서 연구소프트웨어는 최근 들어 더욱 중요한 역할을 하고 있다. 현재 연구소프트웨어의 인용이 일반적인 관행이 아니거나, 적어도 데이터인용색인(DCI)이 연구소프트웨어의 인용과 재사용을 제대로 인덱싱하지 못하는 것으로 관찰되었다. 소프트웨어인용은 주요 레포지토리(prominent repositories)에서 발견되었다. 소프트웨어인용이 많은 레포지토리는 CRAN(Comprehensive R Archive Network)과 Zenodo였다. 연구소프트웨어가 재사용되는 경우, 비공식 소프트웨어인용(informal software citation)과 공식 소프트웨어인용(formal software citation)이 동시에 관찰되었다. 비공식 소프트웨어인용은 연구소프트웨어가 논문의 본문에서는 언급되지만 참고문헌에는 없는 경우였고, 공식 소프트웨어인용은 참고문헌에도 있는 경우였다. 또한, 이 연구의 결과는 연구소프트웨어의 자기 인용(self-citation) 현황을 설명했다.