| dc.contributor.author | Karagoz, Aysenur | |
| dc.contributor.author | Liu, Ruofeng | |
| dc.contributor.author | Validi, Hamidreza | |
| dc.date.accessioned | 2025-05-15T20:45:05Z | |
| dc.date.available | 2025-05-15T20:45:05Z | |
| dc.date.issued | 2024-12-28 | |
| dc.identifier.uri | https://hdl.handle.net/1721.1/159280 | |
| dc.description.abstract | Liver transplantation has been a critical issue in the U.S. healthcare system for decades, and the region redesign aims to ameliorate this issue. This paper revisits two mixed integer programming (MIP) formulations of the liver region redesign problem proposed by Akshat et al. [1]. We study their first formulation considering two different modeling approaches: one compact formulation and one with exponentially many constraints. We also propose a set of variable fixing procedures and conduct a polyhedral study on their second formulation. Our computational results show that multiple unsolved instances are solved to optimality. | en_US |
| dc.publisher | Springer Berlin Heidelberg | en_US |
| dc.relation.isversionof | https://doi.org/10.1007/s11590-024-02179-w | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
| dc.source | Springer Berlin Heidelberg | en_US |
| dc.title | Strengthened MIP formulations for the liver region redesign models of Akshat et al. | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Karagoz, A., Liu, R. & Validi, H. Strengthened MIP formulations for the liver region redesign models of Akshat et al.. Optim Lett 19, 505–525 (2025). | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Operations Research Center | en_US |
| dc.relation.journal | Optimization Letters | en_US |
| dc.eprint.version | Author's final manuscript | en_US |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
| eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
| dc.date.updated | 2025-03-27T13:49:13Z | |
| dc.language.rfc3066 | en | |
| dc.rights.holder | The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature | |
| dspace.embargo.terms | Y | |
| dspace.date.submission | 2025-03-27T13:49:13Z | |
| mit.journal.volume | 19 | en_US |
| mit.license | PUBLISHER_POLICY | |
| mit.metadata.status | Authority Work and Publication Information Needed | en_US |
