Ji Hwan Cha

Publication Activity (10 Years)

Years Active: 2005-2024
Publications (10 Years): 33

Top Topics

Preventive Maintenance

Stochastic Model

Top Venues

Reliab. Eng. Syst. Saf.

Eur. J. Oper. Res.

J. Appl. Probab.

J. Multivar. Anal.

Publications

Ji Hwan Cha, Maxim Finkelstein
Preventive maintenance for the constrained multi-attempt minimal repair. Reliab. Eng. Syst. Saf. 243 (2024)
Francisco Germán Badía, Ji Hwan Cha, H. Lee, Carmen Sangüesa
Preservation of the log concavity by Bernstein operator with an application to ageing properties of a coherent system. J. Comput. Appl. Math. 443 (2024)
Maxim Finkelstein, Ji Hwan Cha, Amy Langston
Improving classical optimal age-replacement policies for degrading items. Reliab. Eng. Syst. Saf. 236 (2023)
Maxim Finkelstein, Ji Hwan Cha, Tim Bedford
Optimal preventive maintenance strategy for populations of systems that generate outputs. Reliab. Eng. Syst. Saf. 237 (2023)
Maxim Finkelstein, Ji Hwan Cha, Amy Langston
Optimal preventive switching of components in degrading systems. Reliab. Eng. Syst. Saf. 219 (2022)
Ji Hwan Cha, Maxim Finkelstein, Gregory Levitin
Optimal warranty policy with inspection for heterogeneous, stochastically degrading items. Eur. J. Oper. Res. 289 (3) (2021)
Maxim Finkelstein, Ji Hwan Cha, Gregory Levitin
On a new age-replacement policy for items with observed stochastic degradation. Qual. Reliab. Eng. Int. 36 (3) (2020)
Ji Hwan Cha, Maxim Finkelstein
Stochastic modeling for systems with delayed failures. Reliab. Eng. Syst. Saf. 188 (2019)
Ji Hwan Cha, Maxim Finkelstein, Gregory Levitin
Bivariate preventive maintenance of systems with lifetimes dependent on a random shock process. Eur. J. Oper. Res. 266 (1) (2018)
Ji Hwan Cha, Maxim Finkelstein
On preventive maintenance under different assumptions on the failure/repair processes. Qual. Reliab. Eng. Int. 34 (1) (2018)
Ji Hwan Cha, Maxim Finkelstein, Gregory Levitin
On optimal replacement of systems with failure rates described by a random jump process. Qual. Reliab. Eng. Int. 34 (8) (2018)
Maxim Finkelstein, Nil Kamal Hazra, Ji Hwan Cha
On optimal operational sequence of components in a warm standby system. J. Appl. Probab. 55 (4) (2018)
Ji Hwan Cha, Maxim Finkelstein, Gregory Levitin
Optimal mission abort policy for partially repairable heterogeneous systems. Eur. J. Oper. Res. 271 (3) (2018)
Francisco Germán Badía, María Dolores Berrade, Ji Hwan Cha, Hyunju Lee
Optimal replacement policy under a general failure and repair model: Minimal versus worse than old repair. Reliab. Eng. Syst. Saf. 180 (2018)
Francisco Germán Badía, Carmen Sangüesa, Ji Hwan Cha
Univariate and multivariate stochastic comparisons and ageing properties of the generalized Pólya process. J. Appl. Probab. 55 (1) (2018)
Francisco Germán Badía, Carmen Sangüesa, Ji Hwan Cha
Stochastic comparisons and multivariate dependence for the epoch times of trend renewal processes. J. Multivar. Anal. 168 (2018)
Ji Hwan Cha, Maxim Finkelstein, Gregory Levitin
On preventive maintenance of systems with lifetimes dependent on a random shock process. Reliab. Eng. Syst. Saf. 168 (2017)
Hyunju Lee, Ji Hwan Cha, Gianpaolo Pulcini
Modeling Discrete Bivariate Data with Applications to Failure and Count Data. Qual. Reliab. Eng. Int. 33 (7) (2017)
Nil Kamal Hazra, Maxim Finkelstein, Ji Hwan Cha
On optimal grouping and stochastic comparisons for heterogeneous items. J. Multivar. Anal. 160 (2017)
Ji Hwan Cha, Gianpaolo Pulcini
Optimal burn-in procedure for mixed populations based on the device degradation process history. Eur. J. Oper. Res. 251 (3) (2016)
Hyunju Lee, Ji Hwan Cha
Point process approach to modeling and analysis of general cascading failure models. J. Appl. Probab. 53 (1) (2016)
Hyunju Lee, Ji Hwan Cha, Maxim Finkelstein
On information-based warranty policy for repairable products from heterogeneous population. Eur. J. Oper. Res. 253 (1) (2016)
Ji Hwan Cha, Carmen Sangüesa, Inmaculada Torres Castro
Maintenance Policy for a System With Stochastically Dependent Failure Modes With Shock-Accumulation Effect. IEEE Trans. Reliab. 65 (3) (2016)
Ji Hwan Cha, Maxim Finkelstein
New shock models based on the generalized Polya process. Eur. J. Oper. Res. 251 (1) (2016)
Hyunju Lee, Ji Hwan Cha
New stochastic models for preventive maintenance and maintenance optimization. Eur. J. Oper. Res. 255 (1) (2016)
Ji Hwan Cha, Maxim Finkelstein
Optimal Long-Run Imperfect Maintenance With Asymptotic Virtual Age. IEEE Trans. Reliab. 65 (1) (2016)
Ji Hwan Cha, Maxim Finkelstein
On some properties of shock processes in a 'natural' scale. Reliab. Eng. Syst. Saf. 145 (2016)
Ji Hwan Cha
Optimal Replacement of Heterogeneous Items With Minimal Repairs. IEEE Trans. Reliab. 65 (2) (2016)
Ji Hwan Cha, Maxim Finkelstein
On Ageing Concepts for Repairable Items From Heterogeneous Populations. IEEE Trans. Reliab. 65 (4) (2016)
Ji Hwan Cha, Gianpaolo Pulcini
A Dependent Competing Risks Model for Technological Units Subject to Degradation Phenomena and Catastrophic Failures. Qual. Reliab. Eng. Int. 32 (2) (2016)
Hyunju Lee, Ji Hwan Cha
Construction of two new general classes of bivariate distributions based on stochastic orders. J. Multivar. Anal. 142 (2015)
Ji Hwan Cha, Inma T. Castro
A Stochastic Failure Model with Dependent Competing Risks and its Applications to Condition-Based Maintenance. J. Appl. Probab. 52 (2) (2015)
Ji Hwan Cha, Maxim Finkelstein
Environmental stress screening modelling, analysis and optimization. Reliab. Eng. Syst. Saf. 139 (2015)
Ji Hwan Cha, Maxim Finkelstein, Francois Marais
Survival of systems with protection subject to two types of external attacks. Ann. Oper. Res. 212 (1) (2014)
Francisco Germán Badía, Carmen Sangüesa, Ji Hwan Cha
Stochastic comparison of multivariate conditionally dependent mixtures. J. Multivar. Anal. 129 (2014)
Ji Hwan Cha, Maxim Finkelstein
On some conditional characteristics of hazard rate processes induced by external shocks. Oper. Res. Lett. 42 (5) (2014)
Ji Hwan Cha, Maxim Finkelstein
Stochastic Modeling for Environmental Stress Screening. J. Appl. Probab. 51 (2) (2014)
Ji Hwan Cha, Maxim Finkelstein
Some notes on unobserved parameters (frailties) in reliability modeling. Reliab. Eng. Syst. Saf. 123 (2014)
Hyunju Lee, Ji Hwan Cha
On construction of general classes of bivariate distributions. J. Multivar. Anal. 127 (2014)
Ji Hwan Cha, Maxim Finkelstein
The failure rate dynamics in heterogeneous populations. Reliab. Eng. Syst. Saf. 112 (2013)
Ji Hwan Cha, Maxim Finkelstein
On history-dependent shock models. Oper. Res. Lett. 41 (3) (2013)
Ji Hwan Cha
On Stochastic Predictions of Failure Processes Under Population Heterogeneity. J. Appl. Probab. 50 (3) (2013)
Ji Hwan Cha, Maxim Finkelstein
Results for Burn-in of Systems Under External Shocks. IEEE Trans. Reliab. 62 (4) (2013)
Ji Hwan Cha, Massimiliano Giorgio
A Note on the Failure Rates in Finite Mixed Populations. J. Appl. Probab. 49 (2) (2012)
Ji Hwan Cha, Maxim Finkelstein
Stochastic analysis of preventive maintenance in heterogeneous populations. Oper. Res. Lett. 40 (5) (2012)
Ji Hwan Cha, Maxim Finkelstein
Burn-in and the performance quality measures in heterogeneous populations. Eur. J. Oper. Res. 210 (2) (2011)
Ji Hwan Cha, Maxim Finkelstein
Burn-in for Systems Operating in a Shock Environment. IEEE Trans. Reliab. 60 (4) (2011)
Ji Hwan Cha
Comparison of combined stochastic risk processes and its applications. Eur. J. Oper. Res. 215 (2) (2011)
Won Young Yun, Ji Hwan Cha
Optimal design of a general warm standby system. Reliab. Eng. Syst. Saf. 95 (8) (2010)
Ji Hwan Cha, Eui Yong Lee
An extended stochastic failure model for a system subject to random shocks. Oper. Res. Lett. 38 (5) (2010)
Ji Hwan Cha, Maxim Finkelstein
Burn-in by environmental shocks for two ordered subpopulations. Eur. J. Oper. Res. 206 (1) (2010)
Ji Hwan Cha, Maxim Finkelstein
Stochastically Ordered Subpopulations and Optimal Burn-In Procedure. IEEE Trans. Reliab. 59 (4) (2010)
Seungmin Nam, Ji Hwan Cha, Sinsup Cho
A Bayesian Change-Point Analysis for Software Reliability Models. Commun. Stat. Simul. Comput. 37 (9) (2008)
Ji Hwan Cha, Hisashi Yamamoto, Won Young Yun
Optimal Burn-in for Minimizing Total Warranty Cost. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2008)
Ji Hwan Cha, Hisashi Yamamoto, Won Young Yun
: G Load Sharing System. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2006)
Ji Hwan Cha, Sangyeol Lee, Jongwoo Jeon
Sequential Confidence Interval Estimation for System Availability. Qual. Reliab. Eng. Int. 22 (2) (2006)
Ji Hwan Cha
An extended model for optimal burn-in procedures. IEEE Trans. Reliab. 55 (2) (2006)
Ji Hwan Cha
On optimal burn-in procedures - a generalized model. IEEE Trans. Reliab. 54 (2) (2005)