Main page

Research

Teaching

WanOpt

Research Interests:

· Data Analytics and Data Science

· Large-scale optimization (Interior-point methods, decomposition, column generation)

· Supply-chain Analytics: Logistics, warehousing, routing, and scheduling.

Google Scholar: Here…

Publications:

[1].S. Elhedhli, F. Gzara, C. Waltho, Green supply chain design with emission sensitive demand: second order cone programming formulation and case study, Optimization Letters 15 (1), 2021, 231-247.

[2].F. Gzara, S. Elhedhli, B.C. Yildiz, The Pallet Loading Problem: Three-dimensional bin packing with practical constraints, European Journal of Operational Research 287 (3), 2020, 1062-1074.

[3].F. Gzara, S. Elhedhli, U. Yildiz, G. Baloch, Data-Driven Modeling and Optimization of the Order Consolidation Problem in E-Warehousing, Informs Journal on Optimization 2 (4), 2020, 273-296.

[4].T. Khaniyev, S. Elhedhli, F.S. Erenay, Spatial separability in hub location problems with an application to brain connectivity networks, Informs Journal on Optimization 2 (4), 2020, 320-346.

[5].S. Elhedhli, F. Gzara, B. Yildiz. Three-dimensional bin packing and mixed-case palletization, Informs Journal on Optimization 1 (4), 2019, 323-352

[6].C. Waltho, S. Elhedhli, F. Gzara, Green supply chain network design: A review focused on policy adoption and emission quantification, International Journal of Production Economics, 208, 2019, 305-318

[7].F. Alkaabneh, A. Diabat, S. Elhedhli, A Lagrangian heuristic and GRASP for the hub-and-spoke network system with economies-of-scale and congestion, Transportation Research Part C, 102, 2019, 249-273.

[8].T. Khaniyev, S. Elhedhli, F. S. Erenay, Structure detection in mixed integer programs, INFORMS Journal on Computing, 30:3, 2018, 570-587.

[9].A. Saif, S. Elhedhli, Sterilization network design, EURO Journal on Transportation and Logistics, 8(1), 2019, 91-115.

[10].V. Bayram, F. Gzara, S. Elhedhli, Joint Capacity, Inventory and Demand Allocation Decisions in Manufacturing Systems, IISE Transactions, 51(3), 2019, 248-265.

[11].S. Elhedhli, Y. Wang, A. Saif, Service System Design with Immobile Servers, Stochastic Demand and Concave-Cost Capacity Selection, Computers & Operations Research, 94, 2018, 65-75.

[12].S. Elhedhli, Z. Li, J. H. Bookbinder, Airfreight forwarding under system-wide and double discounts, EURO Journal on Transportation and Logistics, 6 (2), 2017, 165-183

[13].B. C. Yildiz, F. Gzara, S. Elhedhli, Airline crew pairing with fatigue: Modeling and analysis, Transportation Research Part C, 74, 2017, 99-112.

[14].S. Elhedhli, F. Gzara, Y. F. Yan, A MIP-based slicing heuristic for three-dimensional bin packing, Optimization Letters, 11(8), 2017, 1547-1563.

[15].A. Saif, S. Elhedhli, A Lagrangian heuristic for concave cost facility location problems: the plant location and technology acquisition problem, Optimization letters, 10 (5), 1087-1100, 2016, 1-14.

[16].Saif and S. Elhedhli, Cold Supply Chain Design with Environmental Considerations: An Integrated Simulation-optimization Approach, European Journal of Operational Research, 251(1), 2016, 274-287.

[17].S. Elhedhli, Z. Li, J. H. Bookbinder, Airfreight forwarding under system-wide and double discounts, European Journal of Transportation and Logistics, 2015, 1-19.

[18].S. Elhedhli, J. Naoum-Sawaya, Improved branching disjunctions for branch-and-bound: An analytic center approach, European Journal of Operational Research, 247, 2015, 37-45.

[19].J. Bookbinder, Z. C. Li, and S. Elhedhli, The Air-Cargo Consolidation Problem with Pivot Weight: Models and Solution Methods, Computers &Operations Research, 59, 2015, 22-32.

[20].S. Elhedhli and F. Gzara, Characterizing the optimality gap and the optimal packings for the bin packing problem, Optimization Letters, 9, 2015, 209-223.

[21].S. Elhedhli, C. Akdemir and T. Astebro, Classification models via Tabu search: An application to early stage venture classification, Expert Systems with Applications, 41(8), 2014, 8085-8091.

[22].H. Almutairi and S. Elhedhli, Modeling, analysis, and evaluation of a carbon tax policy based on the emission factor, Computers & Industrial Engineering,77, 2014, 88-102.

[23].D. Lu, F. Gzara and S. Elhedhli, Facility location with Economies and Diseconomies of Scale: Models and Column Generation Heuristics, IIE transactions, 46(6), 2014, 585-600.

[24].H. Almutairi and S. Elhedhli, Carbon Tax based on the Emission Factor: A Bilevel Programming Approach, Journal of Global Optimization, 58(4), 2014, 795-815.

[25].M. Ismail, W. Zhuang and S. Elhedhli, Energy and Content Aware Multi-homing Video Transmission in Heterogeneous Networks, IEEE Transactions on Wireless Communications, 12(7), 2013, 3600-3610.

[26].J. Naoum-Sawaya and S. Elhedhli, A stochastic optimization model for real-time ambulance redeployment, Computers & Operations Research, 40 (8), 2013, 1972ֱ978

[27].J. Naoum-Sawaya and S. Elhedhli, An Interior-Point Benders based Branch-and-Cut Algorithm for Mixed Integer Programs, Annals of Operations Research, 210(1), 2013, 33-55

[28].S. Elhedhli and R. Merrick, , Green supply chain network design to reduce carbon emissions, Transportation Research Part D, 17(5),2012,370-379.

[29].Z. C. Li, J. Bookbinder and S. Elhedhli, Optimal shipment decisions for an airfreight forwarder: Formulation and solution methods, Transportation Research Part C, 21(1),2012,17-30.

[30].J. Naoum-Sawaya and S. Elhedhli, An Interior-Point Benders based Branch-and-Cut Algorithm for Mixed Integer Programs, Annals of Operations Research, 210(1),2013,33-55.

[31].J. Naoum-Sawaya and S. Elhedhli, An Interior Point Cutting Plane Heuristic for Mixed Integer Programming, Computers and Operations Research, 38(9), 2011, 1335-1341.

[32].J. Naoum-Sawaya and S. Elhedhli, Controlled Predatory Pricing in a Multi-period Stackelberg Game: An MPEC Approach, Journal of Global optimization, 50(2), 2011, 345-362.

[33].S. Elhedhli, L. Li , M. Gzara, and J. Naoum-Sawaya_, A Branch-and-Price Algorithm for The Bin Packing Problem with Conflicts, Informs Journal on Computing, 23(3), 2011, 404-415.

[34].J. Naoum-Sawaya_ and S. Elhedhli, A Nested Benders Decomposition Approach for Optimal W-CDMA Telecommunication Network Planning, Naval Research Logistics, 57(6),2010, 519-539.

[35].S. Elhedhli and H. Wu, A Lagrangean Heuristic for Hub-and-Spoke System Design with Capacity Selection and Congestion, Informs Journal on Computing, 222:2, 2010, 282-296

[36].J. Zhang, J. D. Fuller, and S. Elhedhli, A Stochastic Programming Model for a Day-Ahead Electricity Market With Real-Time Reserve Shortage Pricing, IEEE Transactions of Power Systems, 25:2, 2010, 701-713.

[37].H. Almutairi and S. Elhedhli, A new Lagrangean approach to the pooling problem, Journal of Global Optimization, 45, 2009, 237-257.

[38].N. K. Vidyarthi, S. Elhedhli and E. M. Jewkes, Assemble-to-Order Supply Chain Network Design for Response Time Sensitive Markets, IIE Transactions, 41, 2009, 448–466.

[39].M. B. Stevens, M. W. Fowler, A. Elkamel, and S. Elhedhli, Macro-level optimized deployment of an electrolyzer-based hydrogen refueling infrastructure with demand growth , Engineering Optimization, 40, 10, 2008, 955–967.

[40].Benjaafar, S., Y. Li, D. Xu and S. Elhedhli, Demand Allocation in Systems with Multiple Inventory Locations and Multiple Demand Sources, Manufacturing and Service Operations Management, , 10, 1, 2008, 43-60.

[41].N. Vidyarthi, E. Celebi, S. Elhedhli and E. M. Jewkes, Integrated Production-Inventory-Distribution System Design with Risk Pooling: Model Formulation and Heuristic Solution, Transportation Science, 53:9, 2007.

[42].S. Elhedhli Service System Design with Immobile Servers, Stochastic Demand and Congestion, Manufacturing and Service Operations Management, 8, 1 , 2006, 92-97.

[43].T. Astebro and S. Elhedhli, The Effectiveness of Simple Decision Heuristics: A Case Study of Experts’ Forecasts of the Commercial Success of Early-Stage RD Projects, Management Science, 52:3, 2006, 395-409.

[44].S. Elhedhli and F. Gzara, Integrated Design of Supply Chain Networks with Three Echelons, Multiple Commodities and Technology Selection, IIE transactions, 40:1, 208, 31-44

[45].S. Elhedhli and O. S. Benli Optimal Lot Sizing Under Carload Discount Schedules, INFOR 43:4, 2005, 361-37.

[46].S. Elhedhli and J.-L. Goffin, Efficient Production-Distribution System Design, Management Science, 51:7, 2005, 1151-164.

[47].S. Elhedhli, Exact solution of class of nonlinear knapsack problems, Operations Research Letters, 33, 2005, 615-624.

[48].S. Elhedhli, Ranking Lower Bounds for the Bin-Packing Problem, European Journal of Operational Research, 160, 2005, 34–46.

[49].S. Elhedhli and F. X. Hu, Hub-and-spoke Systems Design with Congestion, Computers &Operations Research, 32, 2005,1615-1632.

[50].S. Elhedhli and J.-L. Goffin, The Integration of Interior-Point Cutting Plane Methods within Branch-and-Price Algorithms, Mathematical Programming, 100 (2), 2004, 267-294.

[51].S. Elhedhli, J.-L. Goffin and J.-P. Vial, Nondifferentiable Optimization: Introduction, Applications and Algorithms, Encyclopedia of Optimization, C. Floudas and P. Pardalos, editors, Kluwer Academic Publishers, 2001.

[52].S. Elhedhli, J.-L. Goffin and J.-P. Vial, Nondifferentiable Optimization: Cutting Plane Methods, Encyclopedia of Optimization, C. Floudas and P. Pardalos, editors, Kluwer Academic Publishers, 2001.

[53].M. Pinar and S. Elhedhli A Penalty Continuation Method for the  Solution of Over-determined Linear Systems, BIT, computer Science Numerical Mathematics,38, 1, 1998, 127-151.