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Company employees also engage in writing applications papers and articles in newsletters or trade journals. The references of these articles and their abstracts are listed blow. If you are interested in obtaining a full electronic copy of the paper, please contact us.
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Real-Life Locomotive Planning: New Formulations and Computational Results
B. Vaidyanathan, R. K. Ahuja, J. Liu, and L. A. Shughart. Transportation Research 42, 147-168, 2008.
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New Approaches for Solving the Block-to-Train Assignment Problem
K. C. Jha, R. K. Ahuja, and G. Sahin. Networks 51, 48-62, 2008.
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Multicommodity Network Flow Approach to the Railroad Crew Scheduling Problem
B. Vaidyanathan, K. C. Jha, and R. K. Ahuja. IBM Journal of Research and Development 51, 325-344, 2007.
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Solving Real-Life Railroad Blocking Problems
R. K. Ahuja, K. C. Jha, and J. Liu. Interfaces 37, 404-419, 2007.
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Optimal Network Configuration and Capacity Expansion of Railroads
J. Liu, R.K. Ahuja, and G. Sahin. Operational Research Society 59, 911-920, 2007.
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A Simulation/Optimization Framework for Locomotive Planning
A. Nahapetyan, R. Ahuja, F. Z. Sargut, A. John, and K. Somani. ATMOS Workshop, 259-276, 2007.
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Integer Programming Based Approaches for the Train Dispatching Problem
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Network Models in Railroad Planning and Scheduling
R. K. Ahuja, C. B. Cunha, and G. Sahin. Tutorials in Operations Research 1, 54-101, 2005.
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Solving Real-Life Locomotive-Scheduling Problems
R. K. Ahuja, J. Liu, J. B. Orlin, D. Sharma, and L. A. Shughart. Transportation Science 39, 503-517, 2005.
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A Very Large-Scale Neighborhood Search Algorithm for the Combined Through-Fleet-Assignment Model
R. K. Ahuja, J. Goodstein, A. Mukherjee, J. B. Orlin, and D. Sharma. INFORMS Journal on Computing 19, 416-428, 2007.
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A Neighborhood Search Algorithm for the Combined Through and Fleet Assignment Model with Time Windows
R. K. Ahuja, J. Liu, J. B. Orlin, J. Goodstein, and A. Mukherjee. Networks 44, 160-171, 2004.
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Solving Multi-Criteria Through-Fleet Assignment Models
R. K. Ahuja, J. Liu, J. Goodstein, A. Mukherjee, J. B. Orlin, and D. Sharma. Operations Research in Space and Air, Edited by Tito A. Ciriani, Giorgio Fasano, Stefano Gliozzi, and Robert Tadei, Kluwer Academic Publishers, 233-256, 2003.
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Very Large-Scale Neighborhood Search in Airline Fleet Scheduling
R. K. Ahuja, and J. B. Orlin. SIAM News 35, 1-4, 2002.
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Solving Linear Cost Dynamic Lot-Sizing Problems in O(n log n) Time
R. K. Ahuja, and D. S. Hochbaum. Operations Research 56, 255-261, 2008.
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A Heuristic Approach to the Multi-Period Single-Sourcing Problem with Production and Inventory Capacities and Perishability Constraints
R. K. Ahuja, W. Huang, H. E. Romeijn, and D. R. Morales. INFORMS Journal on Computing 19, 14-26, 2007.
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Exact and Heuristic Algorithms for the Weapon-Target Assignment Problem
R. K. Ahuja, A. Kumar, K. C. Jha, and J. B. Orlin. Operations Research 55, 1136-1146, 2007.
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A Multi-Exchange Heuristic for the Single-Source Capacitated Facility Location Problem
R. K. Ahuja, J. B. Orlin, S. Pallottino, M. P. Scaparra, and M. G. Scutella. Management Science 50, 749-760, 2004.
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A Composite Very Large-Scale Neighborhood Search Algorithm for the Vehicle Routing Problem
R. Agarwal, R.K. Ahuja, G. Laporte, and Z.J. Shen. Handbook of Scheduling: Algorithms, Models and Performance Analysis. Edited by J. Y-T. Leung, Chapman & Hall/CRC, 49-01 to 49-23, 2003.
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Very Large-Scale Neighborhood Search for the Quadratic Assignment Problem
R. K. Ahuja, K. C. Jha, J. B. Orlin, and D. Sharma. INFORMS Journal on Computing 19, 646-657, 2007.
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A Cut-Based Algorithm for the Nonlinear Dual of the Minimum Cost Network Flow Problem
R. K. Ahuja, D. S. Hochbaum, and J. B. Orlin. Algorithmica 39, 189-208, 2004.
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Solving the Convex Cost Integer Dual Network Flow Problem
R. K. Ahuja, D. S. Hochbaum, and J. B. Orlin. Management Science 49, 950-964, 2003.
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Minimum Time and Minimum Cost-Path Problems in Street Networks with Periodic Traffic Lights
R. K. Ahuja, J. B. Orlin, S. Pallottino, and M. G. Scutella. Transportation Science 36, 326-336, 2002.
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A Survey of Very Large-Scale Neighborhood Search Techniques
R. K. Ahuja, O. Ergun, J. B. Orlin, and A. P. Punnen. Discrete Applied Mathematics 123, 75-102, 2002.
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Neighborhood Search Approaches to Beam Orientation Optimization in Intensity Modulated Radiation Therapy Treatment Planning
D. M. Aleman, A. Kumar, R. K. Ahuja, H. E. Romeijn, and J. F. Dempsey. Journal of Global Optimization 42, 769-784, 2008.
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A New Linear Programming Approach to Radiation Therapy Treatment Planning Problems
H. E. Romeijn, R. K. Ahuja, J. F. Dempsey, and A. Kumar. Operations Research 54, 201-216, 2006.
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A Network Flow Algorithm to Minimize Beam-On Time for Unconstrained Multileaf Collimator Problems in Cancer Radiation Therapy
R. K. Ahuja, and H. W. Hamacher. Networks 45, 36-41, 2004.
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A Column Generation Approach to Radiation Therapy Treatment Planning Using Aperture Modulation
H. E. Romeijn, R. K. Ahuja, J. F. Dempsey, and A. Kumar. SIAM Journal on Optimization 15, 838-862, 2005.
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A Novel Linear Programming Approach to Fluence Map Optimization for Intensity Modulated Radiation Therapy Treatment Planning
H. E. Romeijn, R. K. Ahuja, J. F. Dempsey, A. Kumar, and J. G. Li. Physics in Medicine and Biology 48, 3521-3542, 2003.
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