Citer analysis as a measure of research impact: library and information science as a case study

Ajiferuke, Isola; Wolfram, Dietmar

doi:10.1007/s11192-009-0127-6

Cited by 32 publications

(36 citation statements)

References 24 publications

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“…In general, it can be said that the correlation between the two indicators is strong (high R 2 values). This result represents a large-scale confirmation of the initial results obtained by Ajiferuke and Wolfram (2010). Figure 5 can be also used to show the benefit of combining the information provided by h and ch when evaluating the output of a scientist.…”

Section: Analysis Resultssupporting

confidence: 67%

“…This paper enhances the initial study of Ajiferuke and Wolfram (2010) on the ch-index, a recent variant of h, which represents a different way for evaluating the impact/diffusion of one researcher's published output in the scientific community. ch is based on the number of different citers related to a publication, rather than the simple number of received citations.…”

Section: Discussionmentioning

confidence: 92%

“…Also, it is mentioned-for example-in some recent guideline proposals for evaluating academic research performance (Collegio dei presidenti di corso di studi in Matematica 2008). However, apart from the exploratory study of Ajiferuke and Wolfram (2010), no relevant attempt to analyze the differences between the two approaches has appeared yet.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the ch-index: an indicator to evaluate the diffusion of scientific research output by citers

et al. 2010

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This paper focuses the attention on the ch-index, a recent bibliometric indicator similar to the Hirsch (h) index, to evaluate the published research output of a scientist (Ajiferuke and Wolfram, Proceedings of the 12th international conference of the international society for scientometrics and informetrics. Rio de Janeiro, pp. 798-808, 2009). Ch-index is defined as the number such that, for a general group of scientific publications, ch publications are cited by at least ch different citers while the other publications are cited by no more than ch different citers. The basic difference from the classical h is that, according to ch, the diffusion of one author's publication is evaluated on the basis of the number of different citing authors (or citers), rather than the number of received citations. The goal of this work is to discuss the pros and cons of ch and identify its connection with h. A large sample of scientists in the Quality Engineering/Management field are analyzed so as to investigate the novel indicator's characteristics. Then, the analysis is preliminarily extended to other scientific disciplines. The most important result is that ch is almost insensitive to self-citations and/or citations made by recurrent citers, and it can be profitably used for complementing h.

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Section: Analysis Resultssupporting

confidence: 67%

Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Analysis of the ch-index: an indicator to evaluate the diffusion of scientific research output by citers

et al. 2010

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“…The existing impact factor does not have serious concerns for this. This research is different from Lu et al (2014) and Ajiferuke and Wolfram (2010) in terms of the sampling period of investigation, citation-citer analysis, life expectancy, concentration of subject category, and the concepts of first-late comer advantages. The contribution of this paper is from the perspective that it has analyzed the real short and long terms performance of ISI Indexed Journals in Economics by taking care of the life expectancy of publications, concept of first-late comer advantages and development of DIFCCI and DIFJEI.…”

Section: Resultsmentioning

confidence: 85%

Measuring scientific performance of ISI indexed journals in economics: the impact of synchronous and diachronous impact factors

2015

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Different diachronous citing units were used to determine if there are differences between rankings of journals measured by synchronous impact factors of first-and late-comer journals. A 5 year impact factor was chosen, with citation lags identified as a complementary method for first comers and alternative measurement for late comers. Selected diachronous indices were considered as alternatives for evaluating the short and long term performance of late comers without citation lags. The results show that the most significant index that promotes scientific fairness and recognition is the citation concentration index. As older journals gathered higher citations, this index enables late-comers to catch up with the citations. Hence, the diachronous impact factor is useful in providing a fairer assessment of the impact of the late-comer journals and could be used as a baseline for ranking ISI journals.

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“…The idea of citers was recently dug up by Ajiferuke and Wolfram (2010), who proposed and implemented an indicator based on citers, without encountering the computational obstacles of the past, thanks to the current evolution of databases and information management tools. The indicator is the ch-index, which is a variant of the very well-known hindex (Hirsch, 2005).…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

The citer-success-index: a citer-based indicator to select a subset of elite papers

2014

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The goal of this paper is introducing the citer-success-index (cs-index), i.e. an indicator that uses the number of different citers as a proxy for the impact of a generic set of papers. For each of the articles of interest, it is defined a comparison term-which represents the number of citers that, on average, an article published in a certain period and scientific field is expected to ''infect''-to be compared with the actual number of citers of the article. Similarly to the recently proposed success-index (Franceschini et al. Scientometrics 92(3):621-6415, 2011), the cs-index allows to select a subset of ''elite'' papers. The cs-index is analyzed from a conceptual and empirical perspective. Special attention is devoted to the study of the link between the number of citers and cited authors relating to articles from different fields, and the possible correlation between the cs-and the successindex. Some advantages of the cs-index are that (i) it can be applied to multidisciplinary groups of papers, thanks to the field-normalization that it achieves at the level of individual paper and (ii) it is not significantly affected by self citers and recurrent citers. The main drawback is its computational complexity.

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Citer analysis as a measure of research impact: library and information science as a case study

Cited by 32 publications

References 24 publications

Analysis of the ch-index: an indicator to evaluate the diffusion of scientific research output by citers

Analysis of the ch-index: an indicator to evaluate the diffusion of scientific research output by citers

Measuring scientific performance of ISI indexed journals in economics: the impact of synchronous and diachronous impact factors

The citer-success-index: a citer-based indicator to select a subset of elite papers

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