Research Group


  1. Seyed Hosein Hashemi Doulabi

Current PhD Students

  1. Beste Basciftci

  2. Lingquan Ding

  3. Mohamed El Tonbari

  4. Emma Johson

  5. Kevin Ryan

  6. Matias Siebert

Graduated PhD Students

  1. Ezgi Karabulut. Ph.D. Fall 2017. Thesis: ‘‘Distributed Integer Programming.’’ First position: Lecturer, Rensselaer Polytechnic Institute.

  2. Weijun Xie. Ph.D. Fall 2017. Thesis: ‘‘Relaxations and approximations of chance constrained stochastic programs.’’ First position: Assistant Professor, Virginia Tech.

  3. Jikai Zou. Ph.D. Fall 2017. Thesis: ‘‘Large scale multistage stochastic integer programming with applications in electric power systems.’’ First position: Research Scientist, Amazon.

  4. Junho Lee. Ph.D. Fall 2016. Thesis: ‘‘Track layout reflecting dynamic routing in automated material handling systems.’’ First position: Research Scientist, Amazon.

  5. Javad Feizollahi. Ph.D. Fall 2015. Thesis: ‘‘Large scale unit commitment: Decentralized mixed integer programming approaches.’’ First position: Assistant Professor, Georgia State University.

  6. Jiajin Yu. Ph.D. Spring 2015. Thesis: ‘‘Optimization and separation of structured submodular functions with constraints.’’ First position: Research scientist, Facebook.

  7. Kelly Bartlett. Ph.D. Fall 2014. Thesis: ‘‘Congestion-aware dynamic routing in automated material handling systems.’’ First position: Research Scientist, Georgia Tech Research Institute.

  8. Gustavo Angulo. Ph.D. Spring 2014. Thesis: ‘‘Integer Programming approaches for semicontinuous and stochastic optimization.’’ Current Position: Assistant Professor, Pontificia Universidad Catolica de Chile.

  9. Qie He. Ph.D. Fall 2013. Thesis: “Topics in discrete optimization: models, complexity and algorithms.” First Position: Assistant Professor, University of Minnesota.

  10. Steve Tyber. Ph.D. Spring 2013. Thesis: “Cutting planes in mixed integer programming: Theory and algorithms.” First Position: GE Research.

  11. Feng Qiu. Ph.D. Spring 2013. Thesis: “Probabilistic covering problems.” First Position: Argonne National Labs.

  12. Helder Inacio. Ph.D. Spring 2013. Thesis: “Convex relaxations for cubic polynomial problems.” First Position: Sabre.

  13. Akshay Gupte. Ph.D. Fall 2012. Thesis: “Mixed integer bilinear programming with applications to the pooling problem.” First Position: Assistant Professor, Department of Mathematical Sciences, Clemson University.

  14. Ulas Cakmak. Ph.D. Summer 2012. Thesis: “On risk averse and robust inventory problems.” Current Position: Predictix LLC.

  15. Byungsoo Na. Ph.D. Spring 2011. Thesis: “Optimization of automated float glass lines.” First Position: Samsung Electronics, Seoul, Korea. Current position: Assistant Professor, Korea University.

  16. Halil Ozan Gozbasi. Ph.D. Summer 2010. Thesis: “Optimization approaches for planning external beam radiotherapy.” Current Position: Manager, Advanced Analytics and Operations Research at PlusOneMinusOne.

  17. Juan Pablo Vielma. Ph.D. Summer 2009. Thesis: “Mixed integer programming approaches for nonlinear and stochastic programming.” First position: IBM Goldstein Postdoctoral Fellow. Current Position: Assistant Professor, Sloan School of Management, MIT.

  18. Renan Garcia. Ph.D. Spring 2009. Thesis: “Resource constrained shortest paths and extensions.” Position: Optimization Support Engineer, Gurobi Optimization.

  19. Wei Wang. Ph.D. Summer 2007. Thesis: “Sample average approximation of risk-averse stochastic programs.”

  20. James Luedtke. Ph.D. Summer 2007. Thesis: “Integer programming approaches for some non-convex and stochastic optimization problems.” Current Position: Associate Professor at the University of Wisconsin-Madison.

  21. Amandeep Parmar. Ph.D. Spring 2007. Thesis: “Integer programming approaches to networks with equal-split restrictions.” Current Position: Financial/OR Analyst at Quantitative Risk Management.

  22. Yongpei Guan. Ph.D. Summer 2005. Thesis: “Pairing inequalities and stochastic lot-sizing: A study in integer programming.” Current Position: Professor, University of Florida.

  23. Kai Huang. Ph.D. Summer 2005. Thesis: “Multi-stage stochastic programming models in production planning.” Current Position: Associate Professor, School of Business, McMaster University.

  24. Myun-Seok Cheon. Ph.D. Spring 2005. Thesis: “Global optimization of monotonic programs: Applications in polynomial and stochastic programming.” Current Position: Exxon Mobil Research and Engineering.

  25. SugJe Sohn. Ph.D. Summer 2004. Thesis: “Modeling and analysis of production and capacity planning considering profits, throughputs, cycle times, and investment.” Current Position: Intel Corp.

  26. Tjendera Santoso. Ph.D. Fall 2002. Thesis: “Design of flexible and robust supply chains.” Current Position: Accusentry Inc.


  1. Irfan Mahmutogullari, 2017-2018.

  2. Ragheb Rahmaniani, 2017

  3. Martin Hjelmeland, 2016-2017

  4. Bruno Fanzeres, 2016-2017

  5. Merve Bodur, Postdoc, 2015-2016

  6. Avinash Bhardwaj, Postdoc, 2015-2016

  7. Carlos Andrade, Postdoc, 2015

  8. Sergio Bruno, 2013-2014

  9. Bernardo Pagnoncelli, 2007-2008

  10. Peter Schutz, 2005-2006

  11. Bram Verweij, Postdoc, 2001-2003