Publications

Publications in refereed journals

  1. C. Rainwater, J. Geunes, H.E. Romeijn. The Generalized Assignment Problem with flexible jobs. Forthcoming in Discrete Applied Mathematics.
  2. D.M. Aleman, H.E. Romeijn, J.F. Dempsey. A response surface approach to beam orientation optimization in intensity modulated radiation therapy treatment planning. Forthcoming in INFORMS Journal on Computing.
  3. D.M. Aleman, A. Kumar, R.K. Ahuja, H.E. Romeijn, J.F. Dempsey. Neighborhood search approaches to beam orientation optimization in Intensity Modulated Radiation Therapy treatment planning. Forthcoming in Journal of Global Optimization.
  4. T. Bortfeld, D. Craft, J.F. Dempsey, T. Halabi, H.E. Romeijn. Evaluating target cold spots by use of tail EUDs. Forthcoming in International Journal of Radiation Oncology Biology Physics.
  5. T.C. Sharkey, H.E. Romeijn. Simplex-inspired algorithms for solving a class of convex programming problems. Forthcoming in Optimization Letters. Abstract.
  6. J. Geunes, Y. Merzifonluoğlu, H.E. Romeijn. Capacitated procurement planning with price-sensitive demand and general concave revenue functions. Forthcoming in European Journal of Operational Research. Abstract.
  7. I.S. Bakal, J. Geunes, H.E. Romeijn. Market selection and inventory decisions under price-sensitive demand. Forthcoming in Journal of Global Optimization. Abstract.
  8. T.C. Sharkey, H.E. Romeijn. A simplex algorithm for minimum-cost network-flow problems in infinite networks. Forthcoming in Networks. Abstract.
  9. K. Taaffe, J. Geunes, H.E. Romeijn. Target market selection with demand uncertainty: the selective newsvendor problem. European Journal of Operational Research 189:3 (2008), 987-1003. Abstract.
  10. H.S. Li, H.E. Romeijn, C. Fox, J.R. Palta, J.F. Dempsey. A computational implementation and comparison of IMPT treatment planning algorithms. Medical Physics 35:3 (2008), 1103-1112.
  11. G.J. Burke, J. Geunes, H.E. Romeijn, A.J. Vakharia. Allocating procurement to capacitated suppliers with concave quantity discounts. Operations Research Letters 36:1 (2008), 103-109. Abstract.
  12. C. Men, H.E. Romeijn, Z.C. Taşkın, J.F. Dempsey. An exact approach to direct aperture optimization in IMRT treatment planning. Physics in Medicine and Biology 52:24 (2007), 7333-7352. Abstract.
  13. F.Z. Sargut, H.E. Romeijn. Capacitated production and subcontracting in a serial supply chain. IIE Transactions 39:11 (2007), 1031-1043. Abstract.
  14. G. Yamout, K. Hatfield, H.E. Romeijn. Comparison of new Conditional Value-at-Risk based risk management models for optimal allocation of uncertain water supplies. Water Resources Research 43:7 (2007), W07430. Abstract.
  15. F.Z. Sargut, H.E. Romeijn. Lot-sizing with nonstationary cumulative capacities. Operations Research Letters 35:4 (2007), 549-557. Abstract.
  16. Y. Merzifonluoğlu, J. Geunes, H.E. Romeijn. Integrated capacity, demand, and production planning with subcontracting and overtime options. Naval Research Logistics 54:4 (2007), 433-447. Abstract.
  17. R.K. Ahuja, W. Huang, H.E. Romeijn, D. Romero Morales. A heuristic approach to the multi-period single-sourcing problem with production and inventory capacities and perishability constraints. INFORMS Journal on Computing 19:1 (2007), 14-26. Abstract.
  18. H.E. Romeijn, J. Geunes, K. Taaffe. On a nonseparable convex maximization problem with continuous knapsack constraints. Operations Research Letters 35:2 (2007), 172-180. Abstract.
  19. S.D. Ekşioğlu, B. Ekşioğlu, H.E. Romeijn. A Lagrangean heuristic for integrated production and transportation planning problems in a dynamic, multi-item, two-layer supply chain. IIE Transactions 39:2 (2007), 191-201. Abstract.
  20. H.E. Romeijn, J. Shu, C.P. Teo. Designing two-echelon supply networks. European Journal of Operational Research 178:2 (2007), 449-462. Abstract.
  21. F.Z. Sargut, H.E. Romeijn. Capacitated requirements planning with pricing flexibility and general cost and revenue functions. Journal of Industrial and Management Optimization 3:1 (2007), 87-98. Abstract.
  22. J. Choi, S.X. Bai, J. Geunes, H.E. Romeijn. Manufacturing delivery performance for supply chain management. Mathematical and Computer Modeling 45 (2007), 11-20.
  23. H.E. Romeijn, D. Sharma, R.L. Smith. Extreme point characterizations for infinite network flow problems. Networks 48:4 (2006), 209-222. Abstract.
  24. S.D. Ekşioğlu, H.E. Romeijn, P.M. Pardalos. Cross-facility management of production and transportation planning problem. Computers & Operations Research 33:11 (2006), 3231-3251. Abstract.
  25. H.S. Li, H.E. Romeijn, J.F. Dempsey. A Fourier analysis on the optimal grid size for discrete proton beam dose calculation. Medical Physics 33:9 (2006), 3508-3518. Abstract.
  26. M.A. Odijk, H.E. Romeijn, H. van Maaren. Random generation of periodic event schedules with an application to railway timetabling. Computers & Operations Research 33:8 (2006), 2283-2299. Abstract.
  27. C. Fox, H.E. Romeijn, J.F. Dempsey. Fast voxel and polygon ray-tracing algorithms for IMRT treatment planning. Medical Physics 33:5 (2006), 1364-1371. Abstract.
  28. J. Geunes, H.E. Romeijn, K. Taaffe. Requirements planning with dynamic pricing and order selection flexibility. Operations Research 54:2 (2006), 394-401. Abstract.
  29. H.E. Romeijn, R.K. Ahuja, J.F. Dempsey, A. Kumar. A new linear programming approach to radiation therapy treatment planning problems. Operations Research 54:2 (2006), 201-216. Abstract.
  30. A. Alonso Ayuso, L.F. Escudero, C. Pizarro, H.E. Romeijn, D. Romero Morales. On solving the multi-period single-sourcing problem under uncertainty. Computational Management Science 3 (2006), 29-53. Abstract.
  31. J. Choi, J. Cao, H.E. Romeijn, J. Geunes, S.X. Bai. A stochastic multi-item inventory problem with unequal replenishment intervals and limited warehouse capacity. IIE Transactions 37:12 (2005), 1129-1141. Abstract.
  32. S. van Hoesel, H.E. Romeijn, D. Romero Morales, A.P.M. Wagelmans. Integrated lot-sizing in serial supply chains with production capacities. Management Science 51:11 (2005), 1706-1719. Abstract.
  33. S. Sindhuchao, H.E. Romeijn, E. Akçalı, R. Boondiskulchok. An integrated inventory-routing system for multi-item joint replenishment with limited vehicle capacity. Journal of Global Optimization 32:1 (2005), 93-118. Abstract.
  34. D.L.J. Alexander, D.W. Bulger, J.M. Calvin, H.E. Romeijn, R.L. Sherriff. Approximate Implementations of Pure Random Search in the presence of noise. Journal of Global Optimization 31:4 (2005), 601-612. Abstract.
  35. D.W. Bulger, H.E. Romeijn. Optimizing noisy objective functions. Journal of Global Optimization 31:4 (2005), 599-600. Abstract.
  36. H.E. Romeijn, R.K. Ahuja, J.F. Dempsey, A. Kumar. A column generation approach to radiation therapy treatment planning using aperture modulation. SIAM Journal on Optimization 15:3 (2005), 838-862. Abstract.
  37. W. Huang, H.E. Romeijn, J. Geunes. The Continuous-time Single-Sourcing Problem with capacity expansion opportunities. Naval Research Logistics 52:3 (2005), 193-211. Abstract.
  38. J.F. Dempsey, H.E. Romeijn, J.G. Li, D.A. Low, J.R. Palta. A Fourier analysis of the dose grid resolution required for accurate IMRT fluence map optimization. Medical Physics 32:2 (2005), 380-388. Abstract.
  39. H.E. Romeijn, J.F. Dempsey, J.G. Li. A unifying framework for multi-criteria fluence map optimization models. Physics in Medicine and Biology 49:10 (2004), 1991-2013. Abstract.
  40. H.E. Romeijn, D. Romero Morales. Asymptotic analysis of a greedy heuristic for the multi-period single-sourcing problem: the acyclic case. Journal of Heuristics 10:1 (2004), 5-35. Abstract.
  41. J. Geunes, Z.-J. Shen, H.E. Romeijn. Economic ordering decisions with market selection flexibility. Naval Research Logistics 51:1 (2004), 117-136. Abstract.
  42. R. Freling, H.E. Romeijn, D. Romero Morales, A.P.M. Wagelmans. A Branch and Price algorithm for the multi-period single-sourcing problem. Operations Research 51:6 (2003), 922-939. Abstract.
  43. H.E. Romeijn, R.K. Ahuja, J.F. Dempsey, A. Kumar, J.G. Li. A novel linear programming approach to fluence map optimization for intensity modulated radiation therapy treatment planning. Physics in Medicine and Biology 48:21 (2003), 3521-3542. Abstract.
  44. H.E. Romeijn, D. Romero Morales. An asymptotically optimal greedy heuristic for the multi-period single-sourcing problem: the cyclic case. Naval Research Logistics 50:5 (2003), 412-437. Abstract.
  45. H.E. Romeijn, D. Romero Morales. Generating experimental data for the Generalized Assignment Problem. Operations Research 49:6 (2001), 866-878. Abstract.
  46. E. Bogentoft, H.E. Romeijn, S. Uryasev. Asset/Liability Management for pension funds using CVaR constraints. Journal of Risk Finance 3:3 (2001), 57-71. Abstract.
  47. H.E. Romeijn, D. Romero Morales. A probabilistic analysis of the multi-period single-sourcing problem. Discrete Applied Mathematics 112:1-3 (2001), 301-328. Abstract.
  48. D.J. Reaume, H.E. Romeijn, R.L. Smith. Implementing Pure Adaptive Search for global optimization using Markov chain sampling. Journal of Global Optimization 20:1 (2001), 33-47. Abstract.
  49. P.M. Pardalos, H.E. Romeijn, H. Tuy. Recent developments and trends in global optimization. Journal of Computational and Applied Mathematics 124 (2000), 209-228. Abstract.
  50. H.E. Romeijn, N. Piersma. A probabilistic feasibility and value analysis of the Generalized Assignment Problem. Journal of Combinatorial Optimization 4:3 (2000), 325-355. Abstract.
  51. H.E. Romeijn, D. Romero Morales. A class of greedy algorithms for the Generalized Assignment Problem. Discrete Applied Mathematics 103:1-3 (2000), 209-235. Abstract.
  52. H.E. Romeijn, Z.B. Zabinsky, D.L. Graesser, S. Neogi. A new reflection generator for simulated annealing in mixed integer/continuous global optimization. Journal of Optimization Theory and Applications 101:2 (1999), 403-427. Abstract.
  53. H.E. Romeijn, R.L. Smith. Parallel algorithms for solving aggregated shortest path problems. Computers & Operations Research 26:10-11 (1999), 941-953. Abstract.
  54. Y. Chou, H.E. Romeijn, R.L. Smith. Approximating shortest paths in large-scale networks with an application to Intelligent Transportation Systems. INFORMS Journal on Computing 10:2 (1998), 163-179. Abstract.
  55. W.P. Cross, H.E. Romeijn, R.L. Smith. Approximating extreme points in infinite dimensional convex sets. Mathematics of Operations Research 23:2 (1998), 433-442. Abstract.
  56. H.E. Romeijn, R.L. Smith. Shadow prices in infinite dimensional linear programming. Mathematics of Operations Research 23:1 (1998), 239-256. Abstract.
  57. H.E. Romeijn. A general framework for approximate sampling with an application to generating points on the boundary of bounded convex regions. Statistica Neerlandica 52:1 (1998), 42-59. Abstract.
  58. L.G. Kroon, H.E. Romeijn, P.J. Zwaneveld. Routing trains through railway stations: complexity issues. European Journal of Operational Research 98:3 (1997), 485-498. Abstract.
  59. P.J. Zwaneveld, L.G. Kroon, H.E. Romeijn, M. Salomon, S. Dauzère-Pérès, C.P.M. van Hoesel, H.W. Ambergen. Routing trains through railway stations: model formulation and algorithms. Transportation Science 30:3 (1996), 181-194. Abstract.
  60. N. Piersma, H.E. Romeijn. Parallel machine scheduling: a probabilistic analysis. Naval Research Logistics 43:6 (1996), 897-916. Abstract.
  61. H.E. Romeijn, R.L. Smith. Simulated annealing and adaptive search in global optimization. Probability in the Engineering and Informational Sciences 8 (1994), 571-590. Abstract.
  62. H.E. Romeijn, R.L. Smith. Simulated annealing for constrained global optimization. Journal of Global Optimization 5 (1994), 101-126. Abstract.
  63. Z.B. Zabinsky, R.L. Smith, J.F. McDonald, H.E. Romeijn, D.E. Kaufman. Improving Hit-and-Run for global optimization. Journal of Global Optimization 3 (1993), 171-192. Abstract.
  64. C.J.P. Bélisle, H.E. Romeijn, R.L. Smith. Hit-and-Run algorithms for generating multivariate distributions. Mathematics of Operations Research 18:2 (1993), 255-266. Abstract.
  65. H.E. Romeijn, R.L. Smith, J.C. Bean. Duality in infinite dimensional linear programming. Mathematical Programming 53 (1992), 79-97. Abstract.
  66. C.G.E. Boender, R.J. Caron, J.F. McDonald, A.H.G. Rinnooy Kan, H.E. Romeijn, R.L. Smith, J. Telgen, A.C.F. Vorst. Shake-and-Bake algorithms for generating uniform points on the boundary of bounded polyhedra. Operations Research 39:6 (1991), 945-954. Abstract.
  67. C.G.E. Boender, H.E. Romeijn. The multidimensional Markov chain with prespecified asymptotic means and (auto-)covariances. Communications in Statistics: Theory and Methods 20 (1991), 345-359. Abstract.
  68. H.E. Romeijn. Shake-and-Bake algorithms for the identification of nonredundant linear inequalities. Statistica Neerlandica 45 (1991), 31-50. Abstract.

Refereed chapters in books

  1. D.M. Aleman, H.E. Romeijn, and J.F. Dempsey. Beam orientation optimization methods in Intensity Modulated Radiation Therapy treatment planning. In: G. Lim and E.K. Lee, editors, Optimization in Medicine and Biology (2008).
  2. J. Geunes, Y. Merzifonluoğlu, H.E. Romeijn, K. Taaffe. Demand selection and assignment problems in supply chain planning. In: J.C. Smith, editor, TutORials in Operations Research, INFORMS (2005), 124-141.
  3. D. Romero Morales, H.E. Romeijn. The Generalized Assignment Problem and extensions. In: D.Z. Du, P.M. Pardalos, editors, Handbook of Combinatorial Optimization, Supplement Volume B (2005) 259-311. Springer.
  4. H.E. Romeijn, D. Romero Morales. A greedy heuristic for a three-level multi-period single-sourcing problem. In: A. Klose, M.G. Speranza, L.N. Van Wassenhove, editors, Quantitative Approaches to Distribution Logistics and Supply Chain Management (2002) 191-214. Springer-Verlag, Berlin, Germany. Abstract.
  5. P. Chaovalitwongse, H.E. Romeijn, P.M. Pardalos. A scenario-based heuristic for a capacitated transportation-inventory problem with stochastic demands. In: E. Kontoghiorghes, B. Rustem, S. Siokos, editors, Computational Methods in Decision-Making, Economics and Finance (2002), 231-248. Kluwer Academic Publishers, Dordrecht, The Netherlands. Abstract.
  6. S.D. Ekşioğlu, P.M. Pardalos, H.E. Romeijn. A dynamic slope scaling procedure for the fixed-charge cost multi-commodity network flow problem. In: P.M. Pardalos, V.K. Tsitsiringos, editors, Financial Engineering, e-Commerce and Supply Chain (2002), 247-270. Kluwer Academic Publishers, Dordrecht, The Netherlands.
  7. H.E. Romeijn. Random search methods. In: C.A. Floudas, P.M. Pardalos, editors, Encyclopedia of Optimization, Volume V (2001), 1-6. Kluwer Academic Publishers, Dordrecht, The Netherlands.
  8. D. Romero Morales, J.A.E.E. van Nunen, H.E. Romeijn. Logistics network design evaluation in a dynamic environment. In: M.G. Speranza, P. Stähly, editors, New Trends in Distribution Logistics (1999), 113-135. Springer-Verlag, Berlin, Germany. Abstract.
  9. H.E. Romeijn. Global optimization: from Pure Adaptive Search to simulated annealing. In: W.K. Klein Haneveld, O.J. Vrieze, L.C.M. Kallenberg, editors, Ten years LNMB - Ph.D. research and graduate courses of the Dutch Network of Operations Research (1997), 341-349. CWI Tract, Amsterdam, The Netherlands.
  10. C.G.E. Boender, H.E. Romeijn. Stochastic methods. In: R. Horst, P.M. Pardalos, editors, Handbook of Global Optimization (1995), 829-869. Kluwer Academic Publishers, Dordrecht, The Netherlands. Abstract.

Publications in refereed proceedings

  1. S.B. Jiang, H.E. Romeijn, C. Men, N. Tyagi, J. Lewis, L. Tang, D.J. Choi, A. Majumdar, T. Pawlicki, C. Yashar, A.J. Mundt. Towards on-line adaptive radiotherapy for cervical cancer. Forthcoming in: Y. Censor, M. Jiang, A.K. Louis, editors, Proceedings of the Interdisciplinary Workshop on Mathematical Methods in Biomedical Imaging and Intensity-Modulated Radation Therapy (IMRT), Centro di Ricerca Matematica Ennio De Giorgi, Pisa, Italy (2007).
  2. T.C. Sharkey, H.E. Romeijn, J. Geunes. Analysis of a class of nonlinear knapsack problems. In: Proceedings of the IE Research Conference, Orlando, Florida (2006).
  3. D.M. Aleman, H.E. Romeijn, J.F. Dempsey. A response surface-based approach to beam orientation optimization in IMRT treatment planning. In: Proceedings of the IE Research Conference, Orlando, Florida (2006).
  4. D. Tirumalasetty, K. Taaffe, H.E. Romeijn. All-or-nothing order selection with piecewise-linear cost functions. In: Proceedings of the IE Research Conference, Orlando, Florida (2006).
  5. R. Levi, J. Geunes, H.E. Romeijn, D.B. Shmoys. Inventory and facility location models with market selection. In: M. Jünger and V. Kaibel, editors, Integer Programming and Combinatorial Optimization, Proceedings of the 11th International IPCO Conference, Berlin, Germany, June 8-10, 2005. Lecture Notes in Computer Science, vol. 3509 (2005), 111-124. Springer, Germany.
  6. K. Taaffe, J. Geunes, H.E. Romeijn. Capacity acquisition and stochastic customer demand assignment in a network of facilities. In: Proceedings of the IE Research Conference, Atlanta, Georgia (2005).
  7. K. Taaffe, H.E. Romeijn. Selective newsvendor problems with all-or-nothing order requests. In: Proceedings of the IE Research Conference, Atlanta, Georgia (2005).
  8. J. Cao, H.E. Romeijn. Joint pricing and inventory control in a Markov modulated demand environment. In: Proceedings of the IE Research Conference, Atlanta, Georgia (2005).
  9. W. Huang, J. Geunes, H.E. Romeijn. Multi-period production planning with product specification flexibility. In: Proceedings of the IE Research Conference, Houston, Texas (2004).
  10. K. Taaffe, J. Geunes, H.E. Romeijn. Market entrance and product ordering decisions under demand uncertainty. In: Proceedings of the IE Research Conference, Houston, Texas (2004).
  11. H.E. Romeijn, R.K. Ahuja, J.F. Dempsey, A. Kumar. A rigorous approach to aperture modulation in IMRT treatment planning. In: B.Y. Yi, S.D. Ahn, E.K. Choi, S.W. Ha, editors, Proceedings of the 14th International Conference on the Use of Computers in Radiation Therapy (ICCR), Seoul, South Korea (2004), 169-173.
  12. J.F. Dempsey, J.G. Li, H.E. Romeijn, D.A. Low, J.R. Palta. A Fourier analysis of discretization errors in fluence map optimization for IMRT. In: B.Y. Yi, S.D. Ahn, E.K. Choi, S.W. Ha, editors, Proceedings of the 14th International Conference on the Use of Computers in Radiation Therapy (ICCR), Seoul, South Korea (2004), 240-243.
  13. H.E. Romeijn, J.F. Dempsey, J.G. Li. On the equivalence of multi-criteria fluence map optimization problems. In: B.Y. Yi, S.D. Ahn, E.K. Choi, S.W. Ha, editors, Proceedings of the 14th International Conference on the Use of Computers in Radiation Therapy (ICCR), Seoul, South Korea (2004), 714-717.
  14. J. Geunes, H.E. Romeijn, K. Taaffe. Models for integrated production planning and order selection. In: Proceedings of the IE Research Conference, Orlando, Florida (2002).

Books

  1. P.M. Pardalos, H.E. Romeijn, editors. Handbook of Optimization in Medicine. Springer, New York, New York. Forthcoming.
  2. J. Geunes, E. Akçalı, P.M. Pardalos, H.E. Romeijn, Z.J. Shen, editors. Applications of Supply Chain Management and e-Commerce Research (2005). Springer, New York, New York.
  3. P.M. Pardalos, H.E. Romeijn, editors. Handbook of Global Optimization volume 2 (2002). Kluwer Academic Publishers, Dordrecht, The Netherlands.
  4. J. Geunes, P.M. Pardalos, H.E. Romeijn, editors. Supply Chain Management: Models, Applications, and Research Directions (2002). Kluwer Academic Publishers, Dordrecht, The Netherlands.
  5. H.E. Romeijn. Global Optimization by Random Walk Sampling Methods (1992). Thesis Publishers, Amsterdam, The Netherlands.

Published abstracts

  1. C. Men, H.E. Romeijn, and J.F. Dempsey. Direct Aperture Optimization in IMRT treatment planning. Medical Physics 34:6, 2437. Oral presentation (C. Men) at the American Association for Physicists in Medicine (AAPM) annual meeting, Minneapolis, July 2007.
  2. J.F. Dempsey, B. Dionne, J. Fitzsimmons, A. Haghigat, J.G. Li, D. Low, S. Mutic, J.R. Palta, H.E. Romeijn, G. Sjoden. A real-time MRI guided external radiotherapy delivery system. Medical Physics 33:6, 2254. Oral presentation (J.F. Dempsey) at the American Association for Physicists in Medicine (AAPM) annual meeting, Orlando, July 2006.
  3. D. Aleman, H.E. Romeijn, and J.F. Dempsey. A response surface-based approach to beam orientation optimization in IMRT. Medical Physics 33:6, 2206. Moderated poster presentation (D. Aleman) at the American Association for Physicists in Medicine (AAPM) annual meeting, Orlando, July 2006.
  4. D. Aleman, H.E. Romeijn, and J.F. Dempsey. A novel neighborhood for local search and simulated annealing methods in beam orientation optimization in IMRT. Medical Physics 33:6, 2192. Poster presentation (D. Aleman) at the American Association for Physicists in Medicine (AAPM) annual meeting, Orlando, July 2006.
  5. H.Li, C. Fox, H.E. Romeijn, and J.F. Dempsey. Implementation and comparison of several proton IMRT algorithms. Medical Physics 33:6, 2192. Oral presentation (H. Li) at the American Association for Physicists in Medicine (AAPM) annual meeting, Orlando, July 2006.
  6. C. Fox, B. Lynch, D. Aleman, H.Li, H.E. Romeijn, and J.F. Dempsey. A scientific comparison of inverse treatment plan quality using a convex non-linear programming model as a function of beam quality and beam number. Medical Physics 33:6, 2192. Oral presentation (C. Fox) at the American Association for Physicists in Medicine (AAPM) annual meeting, Orlando, July 2006.
  7. C. Fox, H. Li, H.E. Romeijn, and J.F. Dempsey. Fast efficient global fluence map optimization using a parallelized objective function for IMRT treatment planning. Medical Physics 33:6, 2103. Poster presentation (C. Fox) at the American Association for Physicists in Medicine (AAPM) annual meeting, Orlando, July 2006.
  8. H. Li, C. Fox, H.E. Romeijn, and J.F. Dempsey. 3D Intensity Modulated Proton Therapy with minimal beam number. Medical Physics 33:6, 2051. Poster presentation (H. Li) at the American Association for Physicists in Medicine (AAPM) annual meeting, Orlando, July 2006.
  9. H.E. Romeijn and J.F. Dempsey. On the relationship between risk management and IMRT treatment plan optimization. Medical Physics 32:6, 1976. Poster presentation (H.E. Romeijn) at the American Association for Physicists in Medicine (AAPM) annual meeting, Seattle, July 2005.
  10. K. Cheong, T. Suh, H.E. Romeijn, J.G. Li, J.F. Dempsey. Fast nonlinear optimization with simple bounds for IMRT planning. Medical Physics 32:6, 1975. Poster presentation (K. Cheong) at the American Association for Physicists in Medicine (AAPM) annual meeting, Seattle, July 2005.
  11. J.F. Dempsey, H.E. Romeijn, J.G. Li, D.A. Low, J.R. Palta. Analysis of errors due to limited dose-grid resolution in fluence map optimization for IMRT. Medical Physics 31:6, 1863. Poster presentation (J.F. Dempsey) at the American Association for Physicists in Medicine (AAPM) annual meeting, Pittsburgh, July 2004.
  12. H.E. Romeijn, J.F. Dempsey, J.G. Li. On the equivalence of multi-criteria fluence map optimization problems. Medical Physics 31:6, 1777. Oral presentation (H.E. Romeijn) at the American Association for Physicists in Medicine (AAPM) annual meeting, Pittsburgh, July 2004.
  13. J.F. Dempsey, H.E. Romeijn, E. Lögdberg. Fast global solutions to fluence map optimization problems for adaptive radiotherapy. Medical Physics 31:6, 1777. Oral presentation (J.F. Dempsey) at the American Association for Physicists in Medicine (AAPM) annual meeting, Pittsburgh, July 2004.
  14. H.E. Romeijn, R.K. Ahuja, J.F. Dempsey, A. Kumar. An exact approach to aperture modulation in IMRT treatment planning. Medical Physics 31:6, 1776. Oral presentation (H.E. Romeijn) at the American Association for Physicists in Medicine (AAPM) annual meeting, Pittsburgh, July 2004.
  15. D. Aleman, H.E. Romeijn, J.F. Dempsey. A response surface based approach for integrating beam orientation optimization with fluence map optimization in IMRT. Medical Physics 31:6, 1776. Oral presentation (D. Aleman) at the American Association for Physicists in Medicine (AAPM) annual meeting, Pittsburgh, July 2004.
  16. J.F. Dempsey, H.E. Romeijn, R.K. Ahuja, A. Kumar, J.G. Li. A novel linear programming approach to fluence map optimization for intensity modulated radiation therapy treatment planning. Radiotherapy & Oncology 68:Suppl. 1 (2003), S68-S69. Oral presentation (J.F. Dempsey) at the ESTRO Meeting on Physics and Radiation Technology, Geneva, September 2003.
  17. J.F. Dempsey, R.K. Ahuja, S. Kamath, A. Kumar, J.G. Li, J.R. Palta, H.E. Romeijn, S. Ranka, S. Sahni. The leaf sequencer: an underestimated problem? Radiotherapy & Oncology 68:Suppl. 1 (2003), S3. Oral presentation (J.F. Dempsey) at the ESTRO Workshop "Optimisation of IMRT", Geneva, September 2003.
  18. J.F. Dempsey, A. Kumar, R.K. Ahuja, J.G. Li, H.E. Romeijn. An automated linear programming based treatment planning system for head-and-neck IMRT. Medical Physics 30:6 (2003), 1491. Poster discussion presentation (J.F. Dempsey) at the American Association for Physicists in Medicine (AAPM) annual meeting, San Diego, August 2003.
  19. A. Kumar, R.K. Ahuja, H.E. Romeijn, J.G. Li, J.F. Dempsey. A linear programming based approach for integrating coplanar equi-spaced beam orientation optimization with fluence map optimization in IMRT. Medical Physics 30:6 (2003), 1341. Poster discussion presentation (A. Kumar) at the American Association for Physicists in Medicine (AAPM) annual meeting, San Diego, August 2003.
  20. H.E. Romeijn, R.K. Ahuja, J.F. Dempsey, A. Kumar, J.G. Li. A novel linear programming model for fluence map optimization in IMRT treatment planning. Medical Physics 30:6 (2003), 1334. Poster discussion presentation (H.E. Romeijn) at the American Association for Physicists in Medicine (AAPM) annual meeting, San Diego, August 2003.