Ji Hwan

2.8k total citations
178 papers, 2.0k citations indexed

About

Ji Hwan is a scholar working on Safety, Risk, Reliability and Quality, Statistics and Probability and Software. According to data from OpenAlex, Ji Hwan has authored 178 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 146 papers in Safety, Risk, Reliability and Quality, 134 papers in Statistics and Probability and 66 papers in Software. Recurrent topics in Ji Hwan's work include Reliability and Maintenance Optimization (146 papers), Statistical Distribution Estimation and Applications (132 papers) and Software Reliability and Analysis Research (66 papers). Ji Hwan is often cited by papers focused on Reliability and Maintenance Optimization (146 papers), Statistical Distribution Estimation and Applications (132 papers) and Software Reliability and Analysis Research (66 papers). Ji Hwan collaborates with scholars based in South Korea, South Africa and Russia. Ji Hwan's co-authors include Maxim Finkelstein, Gregory Levitin, Jie Mi, Won Young Yun, F. G. Badía, Nil Kamal Hazra, Gianpaolo Pulcini, Inma T. Castro, Sophie Mercier and M.D. Berrade and has published in prestigious journals such as European Journal of Operational Research, Reliability Engineering & System Safety and The American Statistician.

In The Last Decade

Ji Hwan

166 papers receiving 2.0k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ji Hwan South Korea	24	1.6k	1.2k	782	771	228	178	2.0k
Renyan Jiang China	20	823 0.5×	862 0.7×	724 0.9×	227 0.3×	106 0.5×	113	1.6k
Gianpaolo Pulcini Italy	21	928 0.6×	954 0.8×	757 1.0×	301 0.4×	75 0.3×	74	1.6k
Olivier Gaudoin France	17	904 0.5×	600 0.5×	353 0.5×	467 0.6×	45 0.2×	45	1.1k
A. H. Christer United Kingdom	23	1.3k 0.8×	339 0.3×	598 0.8×	492 0.6×	71 0.3×	54	1.6k
Do Sun Bai South Korea	22	843 0.5×	1.1k 0.9×	1.1k 1.4×	200 0.3×	362 1.6×	66	1.7k
Larry C. Hunter Israel	10	1.6k 1.0×	1.0k 0.9×	552 0.7×	863 1.1×	161 0.7×	12	2.1k
Harold Ascher United States	13	664 0.4×	359 0.3×	373 0.5×	255 0.3×	71 0.3×	25	940
J.K. Vaurio Finland	21	861 0.5×	173 0.1×	781 1.0×	490 0.6×	46 0.2×	61	1.2k
Tzong‐Ru Tsai Taiwan	22	534 0.3×	979 0.8×	976 1.2×	70 0.1×	252 1.1×	106	1.4k
Larry H. Crow United States	11	548 0.3×	381 0.3×	263 0.3×	299 0.4×	53 0.2×	30	745

Countries citing papers authored by Ji Hwan

Since Specialization

Citations

This map shows the geographic impact of Ji Hwan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ji Hwan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ji Hwan more than expected).

Fields of papers citing papers by Ji Hwan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ji Hwan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ji Hwan. The network helps show where Ji Hwan may publish in the future.

Co-authorship network of co-authors of Ji Hwan

This figure shows the co-authorship network connecting the top 25 collaborators of Ji Hwan. A scholar is included among the top collaborators of Ji Hwan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ji Hwan. Ji Hwan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Finkelstein, Maxim & Ji Hwan. (2026). Survival Under Different Types of Shocks With Random Recovery Times: The ‘Tie’, the ‘Match’ and the ‘Cure’ Models. Quality and Reliability Engineering International.

Finkelstein, Maxim & Ji Hwan. (2025). On Shock Models with Two Shock Types. Methodology And Computing In Applied Probability. 27(4).

Hwan, Ji, et al.. (2025). New Information-Based Replacement Policies for Heterogeneous Populations of ‘Aging’ and ‘Non-Aging’ Items. Methodology And Computing In Applied Probability. 27(1).

Hwan, Ji, et al.. (2024). General classes of bivariate distributions for modeling data with common observations. Statistical Papers. 65(8). 5219–5238. 1 indexed citations

Finkelstein, Maxim & Ji Hwan. (2024). Discussing some approaches to delta-shock modeling. Top. 32(2). 245–262. 2 indexed citations

Finkelstein, Maxim & Ji Hwan. (2023). Improving the age composition of dynamic populations of manufactured items. Statistics & Probability Letters. 201. 109879–109879.

Finkelstein, Maxim, Ji Hwan, & Tim Bedford. (2023). Optimal preventive maintenance strategy for populations of systems that generate outputs. Reliability Engineering & System Safety. 237. 109334–109334. 5 indexed citations

Hwan, Ji & Maxim Finkelstein. (2023). On the combined imperfect repair process. Probability in the Engineering and Informational Sciences. 38(2). 341–354.

Finkelstein, Maxim, et al.. (2023). Improving classical optimal age-replacement policies for degrading items. Reliability Engineering & System Safety. 236. 109303–109303. 10 indexed citations

10.

Hwan, Ji & Sophie Mercier. (2021). Poisson generalized gamma process and its properties. Stochastics. 93(8). 1123–1140. 10 indexed citations

11.

Hwan, Ji & Maxim Finkelstein. (2020). On optimal life extension for degrading systems. Proceedings of the Institution of Mechanical Engineers Part O Journal of Risk and Reliability. 234(3). 487–495. 9 indexed citations

12.

Badía, F. G., et al.. (2018). Optimal replacement policy under a general failure and repair model: Minimal versus worse than old repair. Reliability Engineering & System Safety. 180. 362–372. 32 indexed citations

13.

Hwan, Ji & F. G. Badía. (2017). Multivariate reliability modelling based on dependent dynamic shock models. Applied Mathematical Modelling. 51. 199–216. 11 indexed citations

14.

Hazra, Nil Kamal, Maxim Finkelstein, & Ji Hwan. (2017). On optimal grouping and stochastic comparisons for heterogeneous items. Journal of Multivariate Analysis. 160. 146–156. 26 indexed citations

15.

Hwan, Ji & Maxim Finkelstein. (2016). Justifying the Gompertz curve of mortality via the generalized Polya process of shocks. Theoretical Population Biology. 109. 54–62. 7 indexed citations

16.

Hwan, Ji, et al.. (2015). Construction of two new general classes of bivariate distributions based on stochastic orders. Journal of Multivariate Analysis. 142. 75–85. 6 indexed citations

17.

Hwan, Ji, et al.. (2014). On construction of general classes of bivariate distributions. Journal of Multivariate Analysis. 127. 151–159. 13 indexed citations

18.

Hwan, Ji & Maxim Finkelstein. (2011). Stochastic Intensity for Minimal Repairs in Heterogeneous Populations. Journal of Applied Probability. 48(3). 868–876. 28 indexed citations

19.

Hwan, Ji, et al.. (2008). A Bayesian Change-Point Analysis for Software Reliability Models. Communications in Statistics - Simulation and Computation. 37(9). 1855–1869. 8 indexed citations

20.

Hwan, Ji. (2005). Optimal Replacement Policies for the Availability of a Repairable System. 5(3). 373–379.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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