Abstract
Variants of Karmarkar's algorithm are given for solving linear programs with unknown optimal objective valuez *. These new methods combine the approach of Goldfarb and Mehrotra for relaxing the requirement that certain projections be computed exactly with the approach of Todd and Burrell for generating an improving sequence of lower bounds forz * using dual feasible solutions. These methods retain the polynomial-time complexity of Karmarkar's algorithm.
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References
K.M. Anstreicher, A monotonic projective algorithm for fractional linear programming,Algorithmica 1 (1986) 483–498.
D.M. Gay, “A variant of Karmarkar's linear programming algorithm for problems in standard form,”Mathematical Programming 37 (1987) 81–90.
D. Goldfarb and S. Mehrotra, “A relaxed version of Karmarkar's method,”Mathematical Programming 40 (1988) (next issue).
C. Gonzaga, “A conical projection algorithm for linear programming,” Department of Electrical Engineering and Computer Science, University of California (Berkeley, CA, 1985).
N. Karmarkar, “A new polynomial-time algorithm for linear programming,”Combinatorica 4 (1984) 373–395.
S. Mehrotra, “Variants of Karmarkar's algorithm: Theoretical complexity and practical implementation,” Ph.D. Thesis, Department of Industrial Engineering and Operations Research (Columbia University, NY, 1987).
C.C. Paige and M.A. Saunders, “LSQR: An algorithm for sparse linear equations and sparse least squares,”ACM Transactions on Mathematical Software 8 (1982) 43–71.
P.F. Pickel, “Approximate projections for the Karmarkar algorithm,” Manuscript, Polytechnic Institute of New York (Farmingdale, NY, 1985).
M.J. Todd and B.P. Burrell (1986), “An extension of Karmarkar's algorithm for linear programming using dual variables,”Algorithmica 1 (1986) 409–424.
J.A. Tomlin, “An experimental approach to Karmarkar's projective method for linear programming,”Mathematical Programming Study 31 (1987) 175–191.
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This research was supported in part by NSF Grants DMS-85-12277 and CDR-84-21402, and ONR Contract N0014-87-K0214.
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Goldfarb, D., Mehrotra, S. Relaxed variants of Karmarkar's algorithm for linear programs with unknown optimal objective value. Mathematical Programming 40, 183–195 (1988). https://doi.org/10.1007/BF01580729
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DOI: https://doi.org/10.1007/BF01580729