Validated Constraint Solving—Practicalities, Pitfalls, and New Developments
- R. Baker Kearfott
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Many constraint propagation techniques iterate through the constraints in a straightforward manner, but can fail because they do not take account of the coupling between the constraints.However, some methods of taking account of this coupling are local in nature, and fail if the initial search region is too large.We put into perspective newer methods, based on linear relaxations, that can often replace brute-force search with the solution of a large, sparse linear program.
Robustness has been recognized as important in geometric computations and elsewhere for at least a decade, and more and more developers are including validation in the design of their systems. We provide citations to our work and to the work of others to-date in developing validated versions of linear relaxations.
This work is in the form of a brief review and prospectus for future development. We give various simple examples to illustrate our points.
- Validated Constraint Solving—Practicalities, Pitfalls, and New Developments
Volume 11, Issue 5 , pp 383-391
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- Kluwer Academic Publishers-Plenum Publishers
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- Author Affiliations
- 1. University of Louisiana, Lafayette, Louisiana, 70504-1010, USA