Publications

Papers in Review

  1. Wilhelm, W. E., Han, X. and C. Lee (2012) Computational Comparison of Two Formulations for Dynamic Supply Chain Reconfiguration with Capacity Expansion and Contraction. Revision submitted October 23.
  2. Choi, S., and W E. Wilhelm (2012) An Approach to Optimize Master Surgical Block Schedules, Submitted October 5.

Papers in Revision

  1. Choi, S, and W. E. Wilhelm (2012) On Capacity Allocation for Operating Rooms, Computers and Operations Research, in revision.
  2. An, H., and W. E. Wilhelm (2011) An Exact Solution Approach Based on Column Generation and a Partial-Objective Constraint to Design a Cellulosic Biofuel Supply Chain, in revision.
  3. Gokce, E., and W. E. Wilhelm (2011) Knapsack Problem with Generalized Upper Bound Constraints: A Polyhedral Study and Computational Evaluation.
  4. Wilhelm, W. E., and D. Warrier (2010) A Branch-and-Cut Equivalent to Branch and Price.

Recent Refereed Publications

  1. Liang, D., and W. E. Wilhelm (2012) Dual-ascent and Primal Heuristics for Production-assembly- distribution System Design, Naval Research Logistics Quarterly, Accepted October 28.
  2. Zhu, X., and W. E. Wilhelm (2012) Implementation of a three-stage approach for the dynamic resource-constrained shortest-path problem in column generation and branch-and-price, Computers and Operations Research, accepted, July 6.
  3. Wilhelm, W. E., Walden, P., Ravichandran, V. C., and F. J. Fernandez (2012) On Minimizing the Number of Critical Decision Perimeters at which Threats to Protected Facilities must be Identified to Allow Effective Interdiction MORS, Accepted May 18. Scheduled for publication in December 2012 issue, Vol. 17, No. 4.
  4. Dong Hee Son, Peter Yu, Krishna Patwari, and Wilbert E. Wilhelm (2012) On the Relationships Among Facility Location, Transportation Mode Selection and Material Flow Costs in Global Supply Chains, submitted to Global Logistics (J. Bookbinder (ed.)), Springer, 417-444.
  5. Choi, S., and W. E. Wilhelm (2011) An Analysis of Sequencing Surgeries with Durations that Follow the Lognormal, Normal or Gamma Distribution, IIE Transactions on Healthcare Systems Engineering, 2, 156-171.
  6. Perez, E., Ntaimo, L., and W. E. Wilhelm (2011) Patient and Resource Scheduling of Multi-Step Medical Procedures in Nuclear Medicine, IIE Transactions on Healthcare Systems Engineering,1 (3), 168-184.
  7. Zhu, X. and Wilhelm, W.E. (2012) A three-stage approach for the resource-constrained shortest path as a sub-problem in column generation. Computer and Operations Research, 39, 164-178.
  8. Dong Hee Son, Peter Yu, Krishna Patwari, and Wilbert E. Wilhelm (2011) On the Relationships Among Facility Location, Transportation Mode Selection and Material Flow Costs in Global Supply Chains, Accepted for publication in Global Logistics (a book edited by J. Bookbinder), Springer.
  9. An, H., Wilhelm, W. E., and S. Searcy (2011) Biofuel and Petroleum-based Fuel Supply Chain Research: A Literature Review, Biomass and Bioenergy Journal, 35 (9), October, 3763-3774.
  10. An, H., Wilhelm, W. E., and S. Searcy (2011) A mathematical model to design a lignocellulosic biofuel supply chain system with a case study based on a region in Central Texas, Bioresource Technology, 102 (17), September, 7860-7870.
  11. Liang, D., and W. E. Wilhelm (2010) A Generalization of Column Generation to Accelerate Convergence, Mathematical Programming Series A, 122 (2), April, 349-378.
  12. Wilhelm. W. E., and E. Gokce (2010) A Branch-and-Price Approach to Design a Surveillance System for Port and Waterway Security, IEEE Transactions on Automation Science and Engineering, 7 (2), 316-326.
  13. Wilhelm, W. E., and X. Zhu (2010) Enabling Flexibility on a Dual Head Placement Machine by Optimizing Platform-Tray-Feeder Picking Operations, Flexible Service and Manufacturing Journal, 21 (1-2), 1-30.
  14. Lee, C. and W. E. Wilhelm (2010) On the Role of Comparative Advantage, Competitive Advantage, and Competitiveness in the Strategic Planning of International Enterprises, International Journal of Production Economics, published on line January 22, 2010, to be published 124 (1), 225-240.
  15. Zhang, W., and W. E. Wilhelm (2009) OR/MS Decision Support Models for the Specialty Crops Industry: a Literature Review, Annals of OR, 190, 131-148.
  16. Liang, D., and W. E. Wilhelm (2008) Decomposition Schemes and Acceleration Techniques in Application to Production-assembly-distribution System Design, Computers and Operations Research, 35, 4010-4026.
  17. Zhu, X., and W. E. Wilhelm (2007) Three-stage Approaches for Optimizing some Variations of the Resource Constrained Shortest-path Sub-problem in a Column Generation Context, European Journal of Operational Research 183, 564-577.
  18. Choudhry, N., Wilhelm, W. E., Vasudeva, B. R. T., Gott, J., and N. Khotekar (2007) Process Planning for Circuit Card Assembly on a Series of Dual Head Placement Machines, European Journal of Operational Research, 182 (2), October 16, 626-639.
  19. Wilhelm, W. E., Choudhry, N. D., and P. Damodaran (2007) A Model to Optimize Placement Operations on Dual-Head Placement Machines, Discrete Optimization, 4, 232-256.
  20. Zhu, X., and W. E. Wilhelm (2006) Sequence-Dependent Scheduling: A Literature Review, IIE Transactions, 38, 987-1007.
  21. Butenko, S., and W. E. Wilhelm (2006) Clique-detection Models in Computational Biochemistry and Genomics, European Journal of Operational Research, 173 (1), August, 1-17.
  22. Wilhelm, W. E., Arambula, I., and N. N. Choudhry (2006) A Model to Optimize Picking Operations on Dual-Head Placement Machines, IEEE Transactions on Automation Science and Engineering, January, 3 (1), 1-15.
  23. Warrier, D., Wilhelm, W. E., Warren, J., and I. V. Hicks (2005) A Branch-and-Price Approach for the Maximum Weight Independent Set Problem, Networks, 46 (14), 198-209.
  24. Damodaran, P. and W.E. Wilhelm (2005) A Branch-and-Price Approach for Prescribing Profitable Feature Upgrades, International Journal of Production Research 43 (21), 4539-4558.
  25. Wilhelm, W. E., D. Liang, B. Rao, D. Warrier, X. Zhu, and S. Bulusu (2005) Design of International Assembly Systems and Their Supply Chains Under NAFTA, Transportation Research E, 41, 467-493.
  26. Damodaran, P., and W. E. Wilhelm (2004), Branch and Price Methods for Prescribing Profitable Upgrades of High-Technology Products with Stochastic Demands, Decision Sciences, 35 (1), 55-82.
  27. Wilhelm, W.E. and R. Gadidov (2004) A Strong Cutting Plane Approach to the Multiple Product Assembly System Design Problem INFORMS Journal on Computing, 16 (1), 39-55.
  28. Wilhelm, W.E., P. Damodaran, and J. Li (2003) Prescribing the Content and Timing of Product Upgrades, IIE Transactions, 35 (7), 647-664.
  29. Wilhelm, W.E. and P. Kiatchai Tarmy (2003) Circuit Card Assembly on Tandem Turret-Type Placement Machines, IIE Transactions, 35 (7), 627-646.
  30. Wilhelm, W.E. and K. Xu (2002) Prescribing Product Design, Price, and Production Level Over Time in a Stochastic Environment, European Journal of Operational Research, 138 (3), 601-621.
  31. Wilhelm, W.E. (2001) A Technical Review of Column Generation in Integer Programming, Optimization and Engineering, 2 (2), 159-200.
  32. Drees, L.D. and W.E. Wilhelm (2000) Scheduling Experiments on a Nuclear Reactor Using Mixed Integer Programming, Computers and Operations Research, 28, 1013-1037.
  33. Pinnoi, A. and W.E. Wilhelm (2000) Valid Inequalities for a Class of Assembly System Problems, European Journal of Operational Research, 126 (1), 31-50.
  34. Rutherford, D.P. and W.E. Wilhelm(2000) Forecasting Notebook Computer Price as a Function of Constituent Features, Computers in Industrial Engineering, 37, 823-845.
  35. Gadidov, R. and W.E. Wilhelm (2000) A Cutting Plane Approach for the Single-Product Assembly System Design Problem, International Journal of Production Research, 8 (8), 1731-1754.
  36. Schmidt, G. and W.E. Wilhelm (2000) Strategic, Tactical, and Operational Decisions Related to Multi-national Logistics Networks: A Review and Discussion of Modeling Issues, International Journal of Production Research, 38 (7), 1501-1523.
  37. Parija, G.R., R. Gadidov, and W.E. Wilhelm (1999) A Facet Generation Procedure for Solving 0/1 Integer Programs, Operations Research, 47 (5), 789-791.
  38. Wilhelm, W.E. (1999) A Column Generation Approach for the Assembly System Design Problem with Tool Changes, International Journal of Flexible Manufacturing Systems, Vol. 11, No. 2, 177-205.
  39. Wilhelm, W.E. and P. Som (1999) Analysis of Stochastic Assembly with GI Distributed Assembly Time, INFORMS Journal of Computing, 11 (1), 104-116.