Ward Whitt

ORCID

Publication Activity (10 Years)

Years Active: 1970-2024
Publications (10 Years): 34

Top Venues

Queueing Syst. Theory Appl.

Oper. Res. Lett.

INFORMS J. Comput.

Oper. Res.

Publications

Kerry W. Fendick, Ward Whitt
On Gaussian Markov processes and Polya processes. Oper. Res. Lett. 52 (2024)
Kerry W. Fendick, Ward Whitt
Queueing networks with path-dependent arrival processes. Queueing Syst. Theory Appl. 105 (1) (2023)
Yan Chen, Ward Whitt
Applying optimization theory to study extremal GI/GI/1 transient mean waiting times. Queueing Syst. Theory Appl. 101 (3-4) (2022)
Ward Whitt, Wei You
New decomposition approximations for queueing networks. Queueing Syst. Theory Appl. 100 (3-4) (2022)
Kerry W. Fendick, Ward Whitt
Heavy traffic limits for queues with non-stationary path-dependent arrival processes. Queueing Syst. Theory Appl. 101 (1-2) (2022)
Yan Chen, Ward Whitt
Correction to: Extremal GI/GI/1 queues given two moments: exploiting Tchebycheff systems. Queueing Syst. Theory Appl. 102 (3-4) (2022)
Kerry W. Fendick, Ward Whitt
Queues with path-dependent arrival processes. J. Appl. Probab. 58 (2) (2021)
Yan Chen, Ward Whitt
Extremal GI/GI/1 queues given two moments: exploiting Tchebycheff systems. Queueing Syst. Theory Appl. 97 (1-2) (2021)
Ward Whitt
On the many-server fluid limit for a service system with routing based on delayed information. Oper. Res. Lett. 49 (3) (2021)
Yan Chen, Ward Whitt
Extremal models for the GI∕GI∕K waiting-time tail-probability decay rate. Oper. Res. Lett. 48 (6) (2020)
Yan Chen, Ward Whitt
Algorithms for the upper bound mean waiting time in the GI/GI/1 queue. Queueing Syst. Theory Appl. 94 (3-4) (2020)
Ward Whitt, Wei You
A Robust Queueing Network Analyzer Based on Indices of Dispersion. CoRR (2020)
Ward Whitt, Wei You
Heavy-traffic limits for stationary network flows. Queueing Syst. Theory Appl. 95 (1) (2020)
Karl Sigman, Ward Whitt
Marked point processes in discrete time. Queueing Syst. Theory Appl. 92 (1-2) (2019)
Ward Whitt, Xiaopei Zhang
A central-limit-theorem version of the periodic Little's law. Queueing Syst. Theory Appl. 91 (1-2) (2019)
Bo Sun, Xu Sun, Danny H. K. Tsang, Ward Whitt
Optimal battery purchasing and charging strategy at electric vehicle battery swap stations. Eur. J. Oper. Res. 279 (2) (2019)
Ward Whitt, Xiaopei Zhang
Periodic Little's Law. Oper. Res. 67 (1) (2019)
Ward Whitt, Wei You
The advantage of indices of dispersion in queueing approximations. Oper. Res. Lett. 47 (2) (2019)
Ward Whitt, Wei You
Time-Varying Robust Queueing. Oper. Res. 67 (6) (2019)
Ni Ma, Ward Whitt
A Rare-Event Simulation Algorithm for Periodic Single-Server Queues. INFORMS J. Comput. 30 (1) (2018)
Song-Hee Kim, Ward Whitt, Won Chul Cha
A Data-Driven Model of an Appointment-Generated Arrival Process at an Outpatient Clinic. INFORMS J. Comput. 30 (1) (2018)
Xu Sun, Ward Whitt
Creating Work Breaks from Available Idleness. Manuf. Serv. Oper. Manag. 20 (4) (2018)
Ward Whitt, Wei You
Using Robust Queueing to Expose the Impact of Dependence in Single-Server Queues. Oper. Res. 66 (1) (2018)
Ward Whitt
A broad view of queueing theory through one issue. Queueing Syst. Theory Appl. 89 (1-2) (2018)
Yunan Liu, Ward Whitt
Stabilizing performance in a service system with time-varying arrivals and customer feedback. Eur. J. Oper. Res. 256 (2) (2017)
Ward Whitt
Heavy-traffic limits for a single-server queue leading up to a critical point. Oper. Res. Lett. 44 (6) (2016)
Ward Whitt
A Poisson limit for the departure process from a queue with many busy servers. Oper. Res. Lett. 44 (5) (2016)
Ward Whitt
Heavy-traffic fluid limits for periodic infinite-server queues. Queueing Syst. Theory Appl. 84 (1-2) (2016)
Song-Hee Kim, Ponni Vel, Ward Whitt, Won Chul Cha
Poisson and non-Poisson properties in appointment-generated arrival processes: The case of an endocrinology clinic. Oper. Res. Lett. 43 (3) (2015)
Song-Hee Kim, Ward Whitt
The Power of Alternative Kolmogorov-Smirnov Tests Based on Transformations of the Data. ACM Trans. Model. Comput. Simul. 25 (4) (2015)
Ward Whitt
Stabilizing performance in a single-server queue with time-varying arrival rate. Queueing Syst. Theory Appl. 81 (4) (2015)
James Dong, Ward Whitt
Stochastic grey-box modeling of queueing systems: fitting birth-and-death processes to data. Queueing Syst. Theory Appl. 79 (3-4) (2015)
Ni Ma, Ward Whitt
Using simulation to study service-rate controls to stabilize performance in a single-server queue with time-varying arrival rate. WSC (2015)
Ohad Perry, Ward Whitt
Achieving Rapid Recovery in an Overload Control for Large-Scale Service Systems. INFORMS J. Comput. 27 (3) (2015)
Andrew A. Li, Ward Whitt
Approximate blocking probabilities in loss models with independence and distribution assumptions relaxed. Perform. Evaluation 80 (2014)
Song-Hee Kim, Ward Whitt
Are Call Center and Hospital Arrivals Well Modeled by Nonhomogeneous Poisson Processes? Manuf. Serv. Oper. Manag. 16 (3) (2014)
Ward Whitt
Heavy-traffic limits for queues with periodic arrival processes. Oper. Res. Lett. 42 (6-7) (2014)
Ohad Perry, Ward Whitt
Diffusion approximation for an overloaded X model via a stochastic averaging principle. Queueing Syst. Theory Appl. 76 (4) (2014)
Yunan Liu, Ward Whitt
Algorithms for Time-Varying Networks of Many-Server Fluid Queues. INFORMS J. Comput. 26 (1) (2014)
Ward Whitt
/m/∞ queue with a sinusoidal arrival rate function. Oper. Res. Lett. 42 (5) (2014)
Ohad Perry, Ward Whitt
A Fluid Limit for an Overloaded X Model via a Stochastic Averaging Principle. Math. Oper. Res. 38 (2) (2013)
Guodong Pang, Ward Whitt
Two-parameter heavy-traffic limits for infinite-server queues with dependent service times. Queueing Syst. Theory Appl. 73 (2) (2013)
Ward Whitt
OM Forum - Offered Load Analysis for Staffing. Manuf. Serv. Oper. Manag. 15 (2) (2013)
Kun Soo Park, Ward Whitt
Continuous-time Markov chain models to estimate the premium for extended hedge fund lockups. Ann. Oper. Res. 211 (1) (2013)
Song-Hee Kim, Ward Whitt
Using simulation to study statistical tests for arrival process and service time models for service systems. WSC (2013)
Song-Hee Kim, Ward Whitt
Statistical Analysis with Little's Law. Oper. Res. 61 (4) (2013)
Yunan Liu, Ward Whitt
The G t /GI/s t +GI many-server fluid queue. Queueing Syst. Theory Appl. 71 (4) (2012)
Ward Whitt
Extending the FCLT version of L=λW. Oper. Res. Lett. 40 (4) (2012)
Guodong Pang, Ward Whitt
The Impact of Dependent Service Times on Large-Scale Service Systems. Manuf. Serv. Oper. Manag. 14 (2) (2012)
Yunan Liu, Ward Whitt
+G/ queueing model experiencing periods of overloading. Oper. Res. Lett. 40 (5) (2012)
Yunan Liu, Ward Whitt
A fluid model for many-server queues with time-varying arrivals and phase-type service distribution. SIGMETRICS Perform. Evaluation Rev. 39 (4) (2012)
Yunan Liu, Ward Whitt
Stabilizing Customer Abandonment in Many-Server Queues with Time-Varying Arrivals. Oper. Res. 60 (6) (2012)
Ohad Perry, Ward Whitt
A Fluid Approximation for Service Systems Responding to Unexpected Overloads. Oper. Res. 59 (5) (2011)
Yunan Liu, Ward Whitt
many-server fluid queue with abandonment. Queueing Syst. Theory Appl. 67 (2) (2011)
Rouba Ibrahim, Ward Whitt
Wait-Time Predictors for Customer Service Systems with Time-Varying Demand and Capacity. Oper. Res. 59 (5) (2011)
Yunan Liu, Ward Whitt
A Network of Time-Varying Many-Server Fluid Queues with Customer Abandonment. Oper. Res. 59 (4) (2011)
Karl Sigman, Ward Whitt
Heavy-traffic limits for nearly deterministic queues: stationary distributions. Queueing Syst. Theory Appl. 69 (2) (2011)
Ohad Perry, Ward Whitt
An ODE for an Overloaded X Model Involving a Stochastic Averaging Principle CoRR (2010)
Karl Sigman, Ward Whitt
Heavy-traffic limits for nearly deterministic queues. SIGMETRICS Perform. Evaluation Rev. 38 (2) (2010)
Guodong Pang, Ward Whitt
Two-parameter heavy-traffic limits for infinite-server queues. Queueing Syst. Theory Appl. 65 (4) (2010)
Rouba Ibrahim, Ward Whitt
Delay predictors for customer service systems with time-varying parameters. WSC (2010)
Ohad Perry, Ward Whitt
A Fluid Limit for an Overloaded X Model Via an Averaging Principle CoRR (2010)
Yunan Liu, Ward Whitt
A fluid approximation for large-scale service systems. SIGMETRICS Perform. Evaluation Rev. 38 (2) (2010)
Itay Gurvich, Ward Whitt
Service-Level Differentiation in Many-Server Service Systems via Queue-Ratio Routing. Oper. Res. 58 (2) (2010)
Guodong Pang, Ward Whitt
Heavy-traffic limits for many-server queues with service interruptions. Queueing Syst. Theory Appl. 61 (2-3) (2009)
Itay Gurvich, Ward Whitt
Queue-and-Idleness-Ratio Controls in Many-Server Service Systems. Math. Oper. Res. 34 (2) (2009)
Guodong Pang, Ward Whitt
Service Interruptions in Large-Scale Service Systems. Manag. Sci. 55 (9) (2009)
Itay Gurvich, Ward Whitt
Scheduling Flexible Servers with Convex Delay Costs in Many-Server Service Systems. Manuf. Serv. Oper. Manag. 11 (2) (2009)
Rouba Ibrahim, Ward Whitt
Real-Time Delay Estimation Based on Delay History. Manuf. Serv. Oper. Manag. 11 (3) (2009)
Rouba Ibrahim, Ward Whitt
Real-Time Delay Estimation in Overloaded Multiserver Queues with Abandonments. Manag. Sci. 55 (10) (2009)
Guodong Pang, Ward Whitt
Heavy-traffic extreme value limits for Erlang delay models. Queueing Syst. Theory Appl. 63 (1-4) (2009)
Ohad Perry, Ward Whitt
Responding to Unexpected Overloads in Large-Scale Service Systems. Manag. Sci. 55 (8) (2009)
Mor Armony, Nahum Shimkin, Ward Whitt
The Impact of Delay Announcements in Many-Server Queues with Abandonment. Oper. Res. 57 (1) (2009)
Rouba Ibrahim, Ward Whitt
REal-time delay estimation in call centers. WSC (2008)
Rishi Talreja, Ward Whitt
Fluid Models for Overloaded Multiclass Many-Server Queueing Systems with First-Come, First-Served Routing. Manag. Sci. 54 (8) (2008)
Zohar Feldman, Avishai Mandelbaum, William A. Massey, Ward Whitt
Staffing of Time-Varying Queues to Achieve Time-Stable Performance. Manag. Sci. 54 (2) (2008)
David Alan Goldberg, Ward Whitt
/G/infinity queue with a terminating arrival process. Queueing Syst. Theory Appl. 58 (2) (2008)
Charles S. Crow IV, David Alan Goldberg, Ward Whitt
Two-Moment Approximations for Maxima. Oper. Res. 55 (3) (2007)
Wanmo Kang, Perwez Shahabuddin, Ward Whitt
Exploiting regenerative structure to estimate finite time averages via simulation. ACM Trans. Model. Comput. Simul. 17 (2) (2007)
Varun Gupta, Karl Sigman, Mor Harchol-Balter, Ward Whitt
Insensitivity for PS server farms with JSQ routing. SIGMETRICS Perform. Evaluation Rev. 35 (2) (2007)
Efstathios Avdis, Ward Whitt
Power Algorithms for Inverting Laplace Transforms. INFORMS J. Comput. 19 (3) (2007)
Varun Gupta, Mor Harchol-Balter, Karl Sigman, Ward Whitt
Analysis of join-the-shortest-queue routing for web server farms. Perform. Evaluation 64 (9-12) (2007)
Ward Whitt
The Impact of Increased Employee Retention on Performance in a Customer Contact Center. Manuf. Serv. Oper. Manag. 8 (3) (2006)
Ward Whitt
Fluid Models for Multiserver Queues with Abandonments. Oper. Res. 54 (1) (2006)
Ward Whitt
Sensitivity of Performance in the Erlang-A Queueing Model to Changes in the Model Parameters. Oper. Res. 54 (2) (2006)
Joseph Abate, Ward Whitt
A Unified Framework for Numerically Inverting Laplace Transforms. INFORMS J. Comput. 18 (4) (2006)
Rodney B. Wallace, Ward Whitt
A Staffing Algorithm for Call Centers with Skill-Based Routing. Manuf. Serv. Oper. Manag. 7 (4) (2005)
Ward Whitt
Engineering Solution of a Basic Call-Center Model. Manag. Sci. 51 (2) (2005)
Ward Whitt
Two fluid approximations for multi-server queues with abandonments. Oper. Res. Lett. 33 (4) (2005)
Ward Whitt
Queue. Math. Oper. Res. 30 (1) (2005)
Ward Whitt
Heavy-Traffic Limits for Loss Proportions in Single-Server Queues. Queueing Syst. Theory Appl. 46 (3-4) (2004)
Ward Whitt
A Diffusion Approximation for the G/GI/n/m Queue. Oper. Res. 52 (6) (2004)
Ward Whitt
Efficiency-Driven Heavy-Traffic Approximations for Many-Server Queues with Abandonments. Manag. Sci. 50 (10) (2004)
Ward Whitt
How Multiserver Queues Scale with Growing Congestion-Dependent Demand. Oper. Res. 51 (4) (2003)
Clement McCalla, Ward Whitt
A Time-Dependent Queueing-Network Model to Describe the Life-Cycle Dynamics of Private-Line Telecommunication Services. Telecommun. Syst. 19 (1) (2002)
Ward Whitt
The Reflection Map with Discontinuities. Math. Oper. Res. 26 (3) (2001)
Rayadurgam Srikant, Ward Whitt
Resource Sharing for Book-Ahead and Instantaneous-Request Calls Using a CLT Approximation. Telecommun. Syst. 16 (3-4) (2001)
Nick G. Duffield, William A. Massey, Ward Whitt
A Nonstationary Offered-Load Model for Packet Networks. Telecommun. Syst. 16 (3-4) (2001)
Ward Whitt
The impact of a heavy-tailed service-time distribution upon the M/GI/s waiting-time distribution. Queueing Syst. Theory Appl. 36 (1-3) (2000)
Ward Whitt
An overview of Brownian and non-Brownian FCLTs for the single-server queue. Queueing Syst. Theory Appl. 36 (1-3) (2000)

Ward Whitt.css-eqlu8i{font-size:small;padding-left:4px;}

Publication Activity (10 Years)

Top Topics

Top Venues

Ward Whitt