Professor
Education
- Ph.D. Operations Research (1990), Stanford University
- M.S. Statistics (1989), Stanford University
- B.S. Mathematics (1986), University of Iceland
Expertise
- Stochastic Optimization
- Simulation
- Applied Probability
About
Sigrun Andradottir is a Professor in the H. Milton Stewart School of Industrial and Systems Engineering at Georgia Tech.
Her research interests are in simulation, applied probability, and stochastic optimization.
She received a B.S. in Mathematics from the University of Iceland in 1986, an M.S. in Statistics from Stanford University in 1989, and a Ph.D. in Operations Research from Stanford University in 1990. She joined the faculty of the University of Wisconsin - Madison in 1990, and later moved to Georgia Tech in 1995.
Research
Decision making under uncertainty.
Primary methodologies: Discrete-event simulation, applied probability, and stochastic optimization.
Primary application areas: Agile production and service systems; flexibility.
Teaching
Modeling and analysis of stochastic systems.
Representative Publications
2016–2020:
1. Computing Bayesian Means Using Simulation (with Peter W. Glynn). ACM Transactions on Modeling and Computer Simulation, 2016 (volume 26, issue 2), Article 10.
2. Optimal Control of Queueing Systems with Non-collaborating Servers (with Tugce Isik and Hayriye Ayhan). Queueing Systems, 2016 (volume 84, issue 1), 79-110.
3. Resource Pooling in the Presence of Failures: Efficiency versus Risk (with Hayriye Ayhan and Douglas G. Down). European Journal of Operational Research, 2017 (volume 256, issue 1), 230-241.
4. Simulation Cloning with Induced Negative Correlation (with Judy S. Lee and Richard M. Fujimoto). Journal of Simulation, 2017 (volume 11, issue 4), 391-406.
5. Pooling in Tandem Queueing Networks with Non-collaborative Servers (with Nilay Tanik Argon). Queueing Systems, 2017 (volume 87, issue 3-4), 345-377.
6. An Asymptotically Optimal Set Approach for Simulation Optimization (with Liujia Hu). INFORMS Journal on Computing, 2019 (volume 31, issue 1), 21-39.
7. Optimal Pricing for Tandem Queues with Finite Buffers (with Xinchang Wang and Hayriye Ayhan). Queueing Systems, 2019 (volume 92, issue 3-4), 323-396.
8. Ranking Flexibility Structures in Queueing Systems (with Hayriye Ayhan and Douglas G. Down). European Journal of Operational Research, 2020 (volume 281, issue 1), 77-86.
9. Inspection Location in Capacity-Constrained Lines (with Salih Tekin). Central European Journal of Operations Research, 2020 (volume 28, issue 3), 905-937.
10 Revenue Maximization in Two-Station Tandem Queueing Systems (with Xinchang Wang, Hayriye Ayhan, and Tonghoon Suk). Naval Research Logistics, 2020 (volume 67, issue 2), 77-107.
11. Constrained Search via Penalization for Continuous Simulation Optimization (with Liujia Hu). IEEE Transactions on Automatic Control, 2020 (volume 65, issue 11), 4741-4752.
2021–2025:
1. Optimizing the Interaction between Residents and Attending Physicians (with Hayriye Ayhan). European Journal of Operational Research, 2021 (volume 290, issue 1), 210-218.
2. Pareto Set Estimation with Guaranteed Probability of Correct Selection (with Judy S. Lee). European Journal of Operational Research, 2021 (volume 292, issue 1), 286-298.
3. Server Coordination in Queueing Systems: When and How? (with Junqi Hu and Hayriye Ayhan). Probability in the Engineering and Informational Sciences, 2022 (volume 36, issue 3), 868-922.
4. Dynamic Control of Non-Collaborative Workers When Reassignment Is Costly (with Tugce Isik and Hayriye Ayhan). Production and Operations Management, 2022 (volume 31, issue 3), 1332-1352.
5. Synchronous Resource Allocation: Modelling, Capacity, and Optimization (with Hayriye Ayhan and Douglas G. Down). OR Spectrum, 2022 (volume 44, issue 4), 1287-1310.
6. Finding Feasible Systems for Subjective Constraints Using Recycled Observations (with Yuwei Zhou and Seong-Hee Kim). INFORMS Journal on Computing, 2022 (volume 34, issue 6), 3080-3095.
7. Optimal Server Assignment in Queues with Flexible Servers and Abandonments (with Hayriye Ayhan). Stochastic Systems, 2023 (volume 13, issue 3), 360-376.
8. Optimal Control of Supervisors Balancing Individual and Joint Responsibilities (with Zhuoting Yu and Hayriye Ayhan). Probability in the Engineering and Informational Sciences, 2024 (volume 38, issue 1), 130-149.
9. Pruning Inferior Systems Using Subjective Constraints with Sequentially Added Thresholds (with Yuwei Zhou, Seong-Hee Kim, and Chuljin Park). Sequential Analysis, 2024 (volume 43, issue 2), 248-274.
10. Selection of the Best in the Presence of Subjective Stochastic Constraints (with Yuwei Zhou and Seong-Hee Kim). ACM Transactions on Modeling and Computer Simulation, 2024 (volume 34, issue 4), Article 22.
11. Optimal Control of Queueing Systems with Error-prone Servers (with Junqi Hu and Hayriye Ayhan). Stochastic Systems, 2025 (volume 15, issue 3), 220-251.