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Overlap approximation schemes in time-varying many-server queues

Ko, Y. M.¹; Xu, J.^*

Online published

Analysis on non-monotone control-limit condition-based maintenance policies

Barde, S.¹; Ko, Y. M.^*

74(4), 5765–5779

The Number of Overlapping Customers in Erlang-A Queues: An Asymptotic Approach

Pender, J.^1,*; Ko, Y. M.; Xu, J.

유체·확산 근사를 활용하여 Erlang-A 대기시스템의 고객 중첩 수를 분석합니다.

39(3), 344–369

The benefits of a dual-lane zone picking system with buffer-free conveyor lanes: An analytical approach

Tran-Vo, T. H.¹; Ko, Y. M.; Hong, S.^*

207, 111278

Strata Design for Variance Reduction in Stochastic Simulation

Park, J.¹; Byon, E.^*; Ko, Y. M.; Shashaani, S.

67(5), 203–214

Condition-based Selective Maintenance Optimization for Large-scale Systems Consisting of Many Homogeneous Units

Lee, E.¹; Ju, J.; Byon, E.; Ko, Y. M.^*

73(2), 1393–1406

Robust Portfolio Optimization using Sentiment-based Uncertainty Sets

Nguyen, P. T. H.

M.S. thesis

Robust Input Sampling Strategies for Stochastic Simulations with Uncertain Input Model

Baik, S. M.

Ph.D. thesis

QoS-aware energy-efficient workload routing and server speed control policy in data centers: a robust queueing theoretic approach

Baik, S. M.¹; Ko, Y. M.^*

55(12), 1242–1255

Reliability Improvement of Circular k-out-of-n: G Balanced Systems through Center of Gravity

Cho, Y.¹; Baik, S. M.; Ko, Y. M.^*

11, 91407–91422

Robust Importance Sampling for Stochastic Simulations with Uncertain Parametric Input Model

Baik, S. M.¹; Ko, Y. M.^*; Byon, E.

397–408

Distributionally Robust Stratified Sampling for Stochastic Simulations With Multiple Uncertain Input Models

Baik, S. M.¹; Byon, E.; Ko, Y. M.^*

Working-paper record · 2023

General EM Algorithm for Fitting Non-Monotone Hazard Functions from Truncated and Censored Observations

Barde, S.¹; Ko, Y. M.; Shin, H.^*

50(5), 476–483

Optimal budget allocation for stochastic simulation with importance sampling: exploration vs. replication

Ko, Y. M.¹; Byon, E.^*

54(9), 881–893

Power- and QoS-Aware Job Assignment with Dynamic Speed Scaling for Cloud Data Center Computing

Cho, Y.¹; Ko, Y. M.^*

10, 38284–38298

Nonparametric Importance Sampling for Wind Turbine Reliability Analysis with Stochastic Computer Models

Li, S.¹; Ko, Y. M.; Byon, E.^*

15(4), 1850–1871

Uncertainty Quantification for Extreme Quantile Estimation with Stochastic Computer Models

Pan, Q.¹; Ko, Y. M.; Byon, E.^*

70(1), 134–145

Economic Design and Maintenance of a Circular k-out-of-n: G Balanced System with Load-Sharing Units

Endharta, A. J.¹; Ko, Y. M.^*

69(4), 1465–1479

Adaptive Importance Sampling for Extreme Quantile Estimation with Stochastic Black Box Computer Models

Pan, Q.¹; Byon, E.^*; Ko, Y. M.; Lam, H.

67(7), 524–547

Fitting Discrete Phase-type Distribution from Censored and Truncated Observations with Pre-specified Hazard Sequence

Barde, S.¹; Ko, Y. M.; Shin, H.^*

48(3), 233–239

Stabilizing the virtual response time in single-server processor sharing queues with slowly time-varying arrival rates

Cho, Y.¹; Ko, Y. M.^*

293, 27–55

Resource Management in Data Centers for Energy-Efficiency, Time-Stable Performance, and Quality-of-Service

Cho, Y.

Ph.D. thesis

Reliability Evaluation of Circular k-out-of-n: G Balanced Systems through Minimal Path Sets

Endharta, A. J.¹; Yun, W. Y.; Ko, Y. M.^*

180, 226–236

Strong approximations for time-varying infinite-server queues with non-renewal arrival and service processes

Ko, Y. M.¹; Pender, J.^*

34(2), 186–206

Energy Efficiency of Data Center Operating Practices: Server Clustering, Powering On/Off, and Bang-Bang Control

Cho, Y.¹; Ko, Y. M.^*

71(2), 107–119

Condition-based Selective Maintenance Optimization for a Large-scale Non-Markovian System

Lee, E.

M.S. thesis

Approximations for the Queue Length Distributions of Time-Varying Many-Server Queues

Pender, J.¹; Ko, Y. M.^*

29(4), 688–704

Diffusion Limits for the (MAPt/PHt/∞)N Queueing Network

Ko, Y. M.¹; Pender, J.^*

45(3), 248–253

Condition-based joint maintenance optimization for a large-scale system with homogeneous units

Ko, Y. M.¹; Byon, E.^*

49(5), 493–504

A Markov Chain Analysis of State Transitions of Chronic Diseases using Medical Checkup Data

Jung, I.

M.S. thesis

A Markov Chain Analysis for State Transitions of Hypertension Using Medical Checkup Data

Jung, I.¹; Kim, J. H.; Kang, S.-H.; Ko, Y. M.^*

Working-paper record · 2017

A simple analysis of the transient period in peer-to-peer networks

Ko, Y. M.^1,*

19(9), 1528–1531

Reliability evaluation of large-scale systems with identical units

Ko, Y. M.¹; Byon, E.^*

64(1), 420–434

A distributed speed scaling and load balancing algorithm for energy efficient data centers

Ko, Y. M.^1,*; Cho, Y.

79, 120–133

Integrating virtualization, voltage scaling and powering on/off servers in data centers for energy efficiency

Gallego, J.¹; Ko, Y. M.; Polansky, R.; Perez, E.; Ntaimo, L.; Gautam, N.^*

45(10), 1114–1136

Critically loaded time-varying multiserver queues: computational challenges and approximations

Ko, Y. M.¹; Gautam, N.^*

25(2), 285–301

Transient analysis of queues for peer-based multimedia content delivery

Ko, Y. M.¹; Gautam, N.^*

42(12), 881–896

Epidemic-based information dissemination in wireless mobile sensor networks

Ko, Y. M.¹; Gautam, N.^*

18(6), 1738–1751

Optimal Policies for Control of Peers in Online Multimedia Services

Ko, Y. M.¹; Chamberland, J.-F.; Gautam, N.

3800–3805