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- Publisher
- Association for Computing Machinery
- Copyright
- Copyright © 1988 by ACM Inc.
- ISSN
- 0001-0782
- DOI
- 10.1145/53580.214953
- Publisher site
- See Article on Publisher Site
Abstract
A feasible direction method for solving Linear Programming (LP) problems, followed by a procedure for purifying a non-basic solution to an improved extreme point solution have been embedded within an otherwise simplex based optimizer. The algorithm is designed to be hybrid in nature and exploits many aspects of sparse matrix and revised simplex technology. The interior search step terminates at a boundary point which is usually non-basic. This is followed by a series of minor pivotal steps which lead to a basic feasible solution with a superior objective function value. It is concluded that the procedures discussed in this article are likely to have three possible applications, which are (i) improving a non-basic feasible solution to a superior extreme point solution, (ii) an improved starting point for the revised simplex method, and (iii) an efficient implementation of the multiple price strategy of the revised simplex method.
Journal
Communications of the ACM – Association for Computing Machinery
Published: Dec 1, 1988