8 citations · 27 across the 8 of their papers we have counts for
8 papers
The Number of Overlapping Customers in Erlang-A Queues: An Asymptotic Approach
Young Myoung Ko, Jamol Pender, Jin Xu
In this paper, we investigate the number of customers that overlap or coincide with a virtual customer in an Erlang-A queue. Our study provides a novel approach that exploits fluid…
Distributionally Robust Stratified Sampling for Stochastic Simulations with Multiple Uncertain Input Models
Seung Min Baik, Eunshin Byon, Young Myoung Ko
This paper presents a robust version of the stratified sampling method when multiple uncertain input models are considered for stochastic simulation. Various variance reduction tec…
Reliability Improvement of Circular k-out-of-n: G Balanced Systems through Center of Gravity
Yongkyu Cho, Seung Min Baik, Young Myoung Ko
This paper considers a circular k-out-of-n: G balance system equipped with homogeneous and stationary units. Building on previous research by Endharta et al. (Reliability Engineeri…
Overlapping time of a virtual customer in time-varying many-server queues
Young Myoung Ko, Jin Xu
Motivated by the ongoing COVID-19 pandemic, this paper investigates customers' infection risk by evaluating the overlapping time of a virtual customer with others in queueing syste…
QoS-aware energy-efficient workload routing and server speed control policy in data centers: a robust queueing theoretic approach
Seung Min Baik, Young Myoung Ko
Operating cloud service infrastructures requires high energy efficiency while ensuring a satisfactory service level. Motivated by data centers, we consider a workload routing and s…
Stabilizing the virtual response time in single-server processor sharing queues with slowly time-varying arrival rates
Yongkyu Cho, Young Myoung Ko
Motivated by the work of Whitt, who studied stabilization of the mean virtual waiting time (excluding service time) in a queue, this paper investigates the stabi…