The Use of hx-index to compare research achievements for ophthalmology authors in Mainland China, Hong Kong, and Taiwan since 2010

Abstract

Background: Ophthalmology authors in mainland China, Hong Kong, or Taiwan were interested in knowing their individual research achievements (IRAs). This study was to evaluate the most cited authors, institutes, and regions in the mainland, Hong Kong, and Taiwan in the field of ophthalmology in the recent 10 years using the hx-index and to display the result with visual representations. Methods: Using the PubMed search engine to download data, we conducted an observational study of citation analyses in affiliated research institutes and regions (provinces/areas) of all ophthalmology authors since 2010. A total of 19,364 published articles from 22,393 authors in the mainland, Hong Kong, and Taiwan were analyzed. The x-index and the Kano model were complemental to the hx-index in identifying IRAs. A pyramid plot was used to illustrate the importance of the author-weighted scheme (AWS) used in evaluating IRAs in academics. The hx-index combining both advantages of the h and x-index was proposed to assess individual IRAs. Furthermore, we drew Results: There is a significant rise over time in the number of publications. The top-ranking regions in hx-index were Shanghai (26.82), Guangdong (25.82), and Beijing (25.81). We demonstrated that Dr Wu from Taiwan published 144 articles in PMC and used the example to explain the importance of AWS when IRAs were assessed. Conclusions: With an overall increase in publications in the field of ophthalmology, contributions assessed by hx-indexes and the AWS should be encouraged and promoted more in the future.

The use of radar plots with the Yk-index to identify which authors contributed the most to the journal of Medicine in 2020 and 2021: A bibliometric analysis

“…[8] For assessment of research productivity and impact, [5] some fractional counting by the first or corresponding author was applied (e.g., author weighted scheme). [6,20,21] First-author articles have been used as a measure of authors' performance in general surgery journals, [22] anesthetic journals, [23] ophthalmology journals, [24] rehabilitation journals, [25] biomedical research journals, [26] urology journals, [27] and orthopedic surgery journals. [28] The number of coauthored articles by Chinese authors was also noted as a reflection of their research responsibility.…”

Thematic analysis of articles on artificial intelligence with spine trauma, vertebral metastasis, and osteoporosis using chord diagrams: A systematic review and meta-analysis

“…There are four factors that contribute to the CJAL score: subject category, journal impact factor, authorship in positions on the article byline, and article citations. The evaluation of individual RAs has traditionally been based on bibliometric metrics (e.g., h-index, [ 60 ] g-index, [ 61 ] x-index, [ 62 ] hx-index, [ 63 ] author impact factor, [ 64 ] Y-index, [ 42 ] and hT-index [ 65 , 66 ] ). These metrics have a number of disadvantages, such as assuming that all coauthors contributed equally to the article, regardless of the type of document or journal impact factor.…”

A comparison of 3 productive authors’ research domains based on sources from articles, cited references and citing articles using social network analysis

“…[33] However, the only practical solution is to split them equally (i.e., to assign each coauthor 1/n of the authorities, where n is the total number of authors), as shown in equation 1. Although the author-weight scheme was proposed to share article credits based on the order of the authors, [8,11,17,34,35] it is straightforward to substitute wi for 1/ a i in equation 1. The author’s order is not considered in this study.…”