We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A Non-Archimedean Interior Point Method and Its Application to the Lexicographic Multi-Objective Quadratic Programming.
- Authors
Fiaschi, Lorenzo; Cococcioni, Marco
- Abstract
This work presents a generalized implementation of the infeasible primal-dual interior point method (IPM) achieved by the use of non-Archimedean values, i.e., infinite and infinitesimal numbers. The extended version, called here the non-Archimedean IPM (NA-IPM), is proved to converge in polynomial time to a global optimum and to be able to manage infeasibility and unboundedness transparently, i.e., without considering them as corner cases: by means of a mild embedding (addition of two variables and one constraint), the NA-IPM implicitly and transparently manages their possible presence. Moreover, the new algorithm is able to solve a wider variety of linear and quadratic optimization problems than its standard counterpart. Among them, the lexicographic multi-objective one deserves particular attention, since the NA-IPM overcomes the issues that standard techniques (such as scalarization or preemptive approach) have. To support the theoretical properties of the NA-IPM, the manuscript also shows four linear and quadratic non-Archimedean programming test cases where the effectiveness of the algorithm is verified. This also stresses that the NA-IPM is not just a mere symbolic or theoretical algorithm but actually a concrete numerical tool, paving the way for its use in real-world problems in the near future.
- Subjects
INTERIOR-point methods; QUADRATIC programming; POLYNOMIAL time algorithms; NONSTANDARD mathematical analysis
- Publication
Mathematics (2227-7390), 2022, Vol 10, Issue 23, p4536
- ISSN
2227-7390
- Publication type
Article
- DOI
10.3390/math10234536