Ahmed Saif

Assistant Professor


Email: Ahmed.Saif@dal.ca
Phone: 902-494-6164
Mailing Address: 
Industrial Engineering PO BOX 15000 Halifax, NS B3H 4R2
 
Research Topics:
  • Large-scale Optimization
  • Decision Making under Uncertainty
  • Disaster Relief Logistics
  • Sustainable Supply Chains
  • Hybrid Renewable Energy Systems

Education

PhD (Management Sciences) - University of Waterloo

Research Interests 

My research focuses on developing new approaches to address complex decision problems tractably and realistically. I consider the four dimensions of complexity: size, nonlinearity, uncertainty, and dynamic behavior using a combination of tools that include: decomposition and approximation techniques, stochastic and robust optimization, metaheuristics, simulation, machine learning, and time-series analysis. Application-wise, I target logistics and energy problems.

Selected Publications:

  • Mahsa Poualiakbari-Mamaghani, Ali Ghodratnama, Seyed Hamid Reza Pasandideh and Ahmed Saif, "A Robust Possibilistic Programming Approach for Blood Supply Chain Network Design in Disaster Relief Considering Congestion", Operational Research, accepted
  • Ahmed Saif, Ali Keyvandarian and Samir Elhedhli, "A New Lagrangian-Benders Approach for a Concave Cost Supply Chain Network Design Problem", INFOR Information Systems and Operational Research, accepted
  • Ahmed Saif and Erick Delage, “Data-Driven Distributionally Robust Capacitated Facility Location Problem”, European Journal of Operational Research, 291(3): 995-1007, 2021
  • Erick Delage and Ahmed Saif, "The Value of Randomized Solutions in Mixed-Integer Distributionally Robust Optimization Problems", INFORMS Journal on Computing, available online
  • Ahmed Saif and Samir Elhedhli, "Sterilization Network Design", EURO Journal on Transportation and Logistics, 8(1): 91-115, 2019
  • Samir Elhedhli, Yan Wang and Ahmed Saif, "Service System Design with Immobile Servers, Stochastic Demand, and Concave-Cost Capacity Selection", Computers & Operations Research, 94:65-75, 2018
  • Ahmed Saif and Samir Elhedhli, “A Lagrangian Heuristic for Concave Cost Facility Location Problems: The Plant Location and Technology Acquisition Problem”, Optimization Letters, 10(5): 1087-1100, 2016
  • Ahmed Saif and Samir Elhedhli, “Cold Supply Chain Design with Environmental Considerations: A Simulation-Optimization Approach”, European Journal of Operational Research, 251(1): 274-287 (Honorable mention in the CORS student paper competition and winner of the Fraser Award for the best Management Sciences student research paper), 2016
  • Ahmed Saif, V. Ravikumar Pandi, H.H. Zeineldin, and Scott Kennedy, "Optimal Configuration of Distributed Energy Resources through Simulation-based Optimization", Electric Power Systems Research, 104(1): 1-8, 2013