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Bilevel linear optimization belongs to NP and admits polynomial-size KKT-based reformulations
Buchheim, Christoph - In: Operations research letters 51 (2023) 6, pp. 618-622
Persistent link: https://www.econbiz.de/10014465872
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Exact algorithms for the quadratic linear ordering problem
Buchheim, Christoph; Wiegele, Angelika; Zheng, Lanbo - In: INFORMS journal on computing : JOC 22 (2010) 1, pp. 168-177
Persistent link: https://www.econbiz.de/10003962697
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Robust critical node selection by Benders decomposition
Naoum-Sawaya, Joe; Buchheim, Christoph - In: INFORMS journal on computing : JOC 28 (2016) 1, pp. 162-174
Persistent link: https://www.econbiz.de/10011453816
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A fast branch-and-bound algorithm for non-convex quadratic integer optimization subject to linear constraints using ellipsoidal relaxations
Buchheim, Christoph; De Santis, Marianna; Palagi, Laura - In: Operations research letters 43 (2015) 4, pp. 384-388
Persistent link: https://www.econbiz.de/10011372453
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Quadratic combinatorial optimization using separable underestimators
Buchheim, Christoph; Traversi, Emiliano - In: INFORMS journal on computing : JOC 30 (2018) 3, pp. 424-437
Persistent link: https://www.econbiz.de/10011948053
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The quadratic shortest path problem : complexity, approximability, and solution methods
Rostami, Borzou; Chassein, André; Hopf, Michael; Frey, … - In: European journal of operational research : EJOR 268 (2018) 2, pp. 473-485
Persistent link: https://www.econbiz.de/10011852596
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Robust combinatorial optimization under convex and discrete cost uncertainty
Buchheim, Christoph; Kurtz, Jannis - In: EURO journal on computational optimization 6 (2018) 3, pp. 211-238
Persistent link: https://www.econbiz.de/10012010201
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K-adaptability in stochastic combinatorial optimization under objective uncertainty
Buchheim, Christoph; Pruente, Jonas - In: European journal of operational research : EJOR 277 (2019) 3, pp. 953-963
Persistent link: https://www.econbiz.de/10012102217
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Stochastic single-allocation hub location
Rostami, Borzou; Kämmerling, Nicolas; Naoum-Sawaya, Joe; … - In: European journal of operational research : EJOR 289 (2021) 3, pp. 1087-1106
Persistent link: https://www.econbiz.de/10012433644
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Berge-acyclic multilinear 0–1 optimization problems
Buchheim, Christoph; Crama, Yves; Rodríguez-Heck, Elisabeth - In: European journal of operational research : EJOR 273 (2019) 1, pp. 102-107
Persistent link: https://www.econbiz.de/10011979450