Whether article types of a scholarly journal are different in cited metrics using cluster analysis of MeSH terms to display

2020

Preprint

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Background: The h-index has its popularity in the global scientific community. Despite the h-index being used as an indicator of individual research achievement (IRA), two main disadvantages have not been solved: (1) all coauthors contributing equally to article bylines and (2) the integer nature of the h-index making it difficult to differentiate the IRAs among entities. This article evaluated the most cited authors, institutes, and states in United States in ophthalmology in recent ten years using a proposed hx-index.Methods: Authors who worked for departments of ophthalmology in United States were selected for identifying their IRAs in Pubmed Central(PMC) since 2010. Using the PubMed search engine, we conducted an observational study of citation analyses in affiliated research institutes and states of all authors who worked for departments of ophthalmology since 2010. A total of 18,289 published articles from 46,121 authors related to departments of ophthalmology from 50 states were analyzed. The bootstrapping method was applied with an estimated 95% confidence interval (CI) to distinguish the differences in IRAs among states and institutes. The x-index and the Kano model were complemental to the h-index for identifying the group IRA characteristics and rankings. A pyramid plot was used to illustrate the importance of the author-weighted scheme(AWS) used for evaluating IRAs in academics. The hx-index combined both advantages of h-/x-index was proposed to assess IRAs for each facility. A significant difference was identified by observing two bands of estimated 95% CIs that were not overlapped. Furthermore, we drew a choropleth map on Google Maps to visualize the differences of IRA among states.Results: There is a significant rise over time in the number of publications. The top-ranking states in hx-index based on publications and citations were Massachusetts(42.28),California(39.24), and Massachusetts(42.28). If only the top 100 authors were included for calculating the median hx-index, the top three would be California(6.45), Massachusetts(3.97). and New York(3.07) with no significant difference found among these three using the bootstrapping method. The institute and author with the highest hx-index were Harvard Medical School(Massachusetts) and Felipe A Medeiros (California), respectively. We demonstrated that Dr. Medeiros from California published 213 articles in PMC and used the example to elucidate the importance of AWS when IRAs were assessed. Conclusions: With an overall increase in publications in the field of ophthalmology, IRAs assessed by these (1) hx-index, (2)the bootstrapping method, and (3) AWS should be emphasized and promoted more in the future.

Section: Data Sourcesmentioning

confidence: 99%

“…Only the unit listed rst was included in this study. The results of hx-index in comparison in Figures 3 might be biased if we were to apply the author-weighted scheme [8,14,15].…”

Section: Limitations and Suggestionsmentioning

confidence: 99%

Using the bootstrapping method to compare research achievements for authors who worked for Departments of Ophthalmology in United States since 2010

Yeh

Wei

2020

Preprint

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“…Studies on scholarly journals focused on research domains (RDs) and research achievements (RAs). [ 1 – 3 ] The former can be clustered by using social network analysis (SNA) and medical subject headings (MeSH terms). [ 4 – 6 ] The latter was evaluated by metrics (e.g., impact factor (IF), h-index, [ 7 ] or x-index [ 8 ] )…”

Section: Introductionmentioning

confidence: 99%

Predicting article citations using data of 100 top-cited publications in the journal Medicine since 2011

Chien²,

et al. 2020

Medicine

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“…The number of publications on spinal surgery has dramatically increased in recent years [1][2][3]. The citation analysis has been applied to measure individual research achievements(IRA) [4][5][6][7][8][9]. However, several changes have been encountered in those studies using bibliometric analyses, such as all factors (e.g., authors or affiliated countries/areas) in an article are viewed with equal contribution to an article.…”

Section: Introductionmentioning

confidence: 99%

Using Kano diagrams to display the most cited article types, affiliated countries, authors and MeSH terms on spinal surgery in recent 12 years

Chou

Yeh

Chien

et al. 2020

Preprint

Self Cite

Background: Citation analysis has been increasingly applied to assess the quantity and quality of scientific research in various fields worldwide. However, these analyses on spinal surgery do not provide visualization of results. This study aims (1) to evaluate the worldwide research citations and publications on spinal surgery and (2) to provide visual representations using Kano diagrams onto the research analysis for spinal surgeons and researchers.