| Modeling and Forecasting Call Center Arrivals: A Literature Survey and a Case Study. R Ibrahim, H Ye, P L’Ecuyer, H Shen The International Journal of Forecasting 32 (3), 865–874, 2016 | 162 | 2016 |
| Sharing Delay Information in Service Systems: A Literature Survey R Ibrahim Queueing Systems 89 (1-2), 49–79, 2018 | 132 | 2018 |
| Forecasting Call Center Arrivals: Fixed-Effects, Mixed-Effects, and Bivariate Models R Ibrahim, P L'Ecuyer Manufacturing & Service Operations Management 15 (1), 72-85, 2013 | 127 | 2013 |
| Eliciting Human Judgment for Prediction Algorithms R Ibrahim, SH Kim, J Tong Management Science 67 (4), 2314-2325, 2021 | 119 | 2021 |
| Wait-time predictors for customer service systems with time-varying demand and capacity R Ibrahim, W Whitt Operations research 59 (5), 1106-1118, 2011 | 114 | 2011 |
| Real-time delay estimation based on delay history R Ibrahim, W Whitt Manufacturing & Service Operations Management 11 (3), 397-415, 2009 | 111 | 2009 |
| Real-time delay estimation in overloaded multiserver queues with abandonments R Ibrahim, W Whitt Management Science 55 (10), 1729-1742, 2009 | 105 | 2009 |
| Managing Queueing Systems where capacity is random and customers are impatient R Ibrahim Production and Operations Management 27 (2), 234-250, 2018 | 100* | 2018 |
| Managing Supply in the On-Demand Economy: Flexible Workers, Full-Time Employees, or Both? J Dong, R Ibrahim Operations Research 68 (4), 1238-1264, 2020 | 96* | 2020 |
| Does the Past Predict the Future? The Case of Delay Announcements in Service Systems R Ibrahim, M Armony, A Bassamboo Management Science 63, 1762–1780, 2017 | 72 | 2017 |
| Real‐Time Delay Estimation Based on Delay History in Many‐Server Service Systems with Time‐Varying Arrivals R Ibrahim, W Whitt Production and Operations Management 20 (5), 654-667, 2011 | 66 | 2011 |
| On the modeling and forecasting of call center arrivals R Ibrahim, N Regnard, P L'Ecuyer, H Shen Simulation Conference (WSC), Proceedings of the 2012 Winter, 1-12, 2012 | 65 | 2012 |
| Inter-Dependent, Heterogeneous, and Time-Varying Service-Time Distributions in Call Centers R Ibrahim, P L’Ecuyer, H Shen, M Thiongane European Journal of Operational Research 250 (2), 480-492, 2016 | 44 | 2016 |
| Designing Individualized Treatment: An Application to Anticoagulation Therapy. R Ibrahim, B Kucukyazici, V Verter, M Gendreau, M Bolstein Production and Operations Management 25 (5), 902-918, 2016 | 37* | 2016 |
| On the SRPT Scheduling Discipline in Many-Server Queues with Impatient Customers J Dong, R Ibrahim Management Science 67 (12), 7291-7950, 2021 | 28 | 2021 |
| Real-time delay estimation in call centers R Ibrahim, W Whitt 2008 Winter Simulation Conference, 2876-2883, 2008 | 22 | 2008 |
| On customer (dis-) honesty in unobservable queues: The role of lying aversion A Estrada Rodriguez, R Ibrahim, D Zhan Management Science 71 (1), 844-860, 2025 | 18* | 2025 |
| A General Framework to Compare Announcement Accuracy: Static vs. LES-Based Announcement A Bassamboo, R Ibrahim Management Science 67 (7), 4191-4208, 2021 | 17 | 2021 |
| Is Expert Input Valuable? The Case of Predicting Surgery Duration R Ibrahim, SH Kim Seoul Journal of Business, 2019 | 14 | 2019 |
| Can “Very Noisy” Information Go a Long Way? An Exploratory Analysis of Personalized Scheduling in Service Systems S Emadi, R Ibrahim, S Kesavan | 8 | 2019 |
Ward WhittProfessor in IEOR Department at Columbia UniversityVerified email at columbia.edu
