
Xu Liding
📬 Contact
- office
- Room 3103 at ZIB
- liding.xu (at) zib.de
- homepage
- lidingxu.github.io
🎓 Curriculum vitae
- since 2024
- Researcher at ZIB
📝 Publications and preprints
Preprints
- Xu, L., and Pokutta, S. (2026). Joint-Range Inequalities for Nonconvex QCQPs.
[arXiv]
[BibTeX]
@misc{2026_XuPokutta_Jointrangeinequalities_2608-03318, archiveprefix = {arXiv}, eprint = {2608.03318}, arxiv = {arXiv:2608.03318}, primaryclass = {math.OC}, year = {2026}, author = {Xu, Liding and Pokutta, Sebastian}, title = {Joint-Range Inequalities for Nonconvex QCQPs}, date = {2026-08-04} } - Xu, L., Zhou, Y., and Pokutta, S. (2026). Agentic MIP Research: Accelerated Constraint Handler Generation.
[arXiv]
[BibTeX]
@misc{2026_XuZhouPokutta_Agenticmip_2605-09186, archiveprefix = {arXiv}, eprint = {2605.09186}, arxiv = {arXiv:2605.09186}, primaryclass = {cs.AI}, year = {2026}, author = {Xu, Liding and Zhou, Yugeng and Pokutta, Sebastian}, title = {Agentic MIP Research: Accelerated Constraint Handler Generation}, date = {2026-05-09} } - Xu, L., Liu, Y.-C., and Pokutta, S. (2025). Convex semidefinite tensor optimization and quantum entanglement.
[arXiv]
[BibTeX]
@misc{2025_XuLiuPokutta_Semidefinitetensors_2511-05258, month = nov, archiveprefix = {arXiv}, eprint = {2511.05258}, arxiv = {arXiv:2511.05258}, primaryclass = {math.OC}, year = {2025}, author = {Xu, Liding and Liu, Ye-Chao and Pokutta, Sebastian}, title = {Convex semidefinite tensor optimization and quantum entanglement}, date = {2025-11-07} } - Hojny, C., Besançon, M., Bestuzheva, K., Borst, S., DionĂsio, J., Ehls, J., Eifler, L., Ghannam, M., Gleixner, A., Göß, A., Hoen, A., von Holly-Ponientzietz, J., van der Hulst, R., Kamp, D., Koch, T., Kofler, K., Lentz, J., LĂĽbbecke, M., Maher, S. J., … Xu, L. (2025). The SCIP Optimization Suite 10.0.
[arXiv]
[BibTeX]
@misc{2025_ChristopherEtAl_Scip10_2511-18580, archiveprefix = {arXiv}, eprint = {2511.18580}, arxiv = {arXiv:2511.18580}, primaryclass = {math.OC}, year = {2025}, author = {Hojny, Christopher and Besançon, Mathieu and Bestuzheva, Ksenia and Borst, Sander and DionĂsio, JoĂŁo and Ehls, Johannes and Eifler, Leon and Ghannam, Mohammed and Gleixner, Ambros and Göß, Adrian and Hoen, Alexander and von Holly-Ponientzietz, Jacob and van der Hulst, Rolf and Kamp, Dominik and Koch, Thorsten and Kofler, Kevin and Lentz, Jurgen and LĂĽbbecke, Marco and Maher, Stephen J. and Meinhold, Paul Matti and Mexi, Gioni and Mohr, Til and MĂĽhmer, Erik and Patel, Krunal Kishor and Pfetsch, Marc and Pokutta, Sebastian and Reinartz Groba, Chantal and Serrano, Felipe and Shinano, Yuji and Turner, Mark and Vigerske, Stefan and Walter, Matthias and Weninger, Dieter and Xu, Liding}, title = {The SCIP Optimization Suite 10.0}, date = {2025-11-23} } - Bolusani, S., Besançon, M., Bestuzheva, K., Chmiela, A., DionĂsio, J., Donkiewicz, T., van Doornmalen, J., Eifler, L., Ghannam, M., Gleixner, A., Graczyk, C., Halbig, K., Hedtke, I., Hoen, A., Hojny, C., van der Hulst, R., Kamp, D., Koch, T., Kofler, K., … Xu, L. (2024). The SCIP Optimization Suite 9.0 (ZIB Report No. 24-02-29). Zuse Institute Berlin.
[URL]
[arXiv]
[code]
[BibTeX]
@techreport{2024_BolusaniEtAl_Scip9, year = {2024}, institution = {Zuse Institute Berlin}, type = {ZIB Report}, month = feb, number = {24-02-29}, url = {https://nbn-resolving.org/urn:nbn:de:0297-zib-95528}, archiveprefix = {arXiv}, eprint = {2402.17702}, arxiv = {arXiv:2402.17702}, primaryclass = {math.OC}, author = {Bolusani, Suresh and Besançon, Mathieu and Bestuzheva, Ksenia and Chmiela, Antonia and DionĂsio, JoĂŁo and Donkiewicz, Tim and van Doornmalen, Jasper and Eifler, Leon and Ghannam, Mohammed and Gleixner, Ambros and Graczyk, Christoph and Halbig, Katrin and Hedtke, Ivo and Hoen, Alexander and Hojny, Christopher and van der Hulst, Rolf and Kamp, Dominik and Koch, Thorsten and Kofler, Kevin and Lentz, Jurgen and Manns, Julian and Mexi, Gioni and MĂĽhmer, Erik and Pfetsch, Marc and Schlösser, Franziska and Serrano, Felipe and Shinano, Yuji and Turner, Mark and Vigerske, Stefan and Weninger, Dieter and Xu, Liding}, title = {The SCIP Optimization Suite 9.0}, code = {https://scipopt.org}, date = {2024-02-27} } - Xu, L., and D’Ambrosio, C. (2024). Formulations of the continuous set-covering problem on networks: a comparative study.
[arXiv]
[BibTeX]
@misc{2024_XuDambrosio_Continuoussetcovering, archiveprefix = {arXiv}, eprint = {2404.10467}, arxiv = {arXiv:2404.10467}, primaryclass = {math.OC}, year = {2024}, author = {Xu, Liding and D'Ambrosio, Claudia}, title = {Formulations of the continuous set-covering problem on networks: a comparative study}, date = {2024-04-16} }
Conference proceedings
- Xu, L., Mexi, G., and Bestuzheva, K. (2025). Sparsity-Driven Aggregation of Mixed Integer Programs. Proceedings of the Symposium on Experimental Algorithms, 338, 27:1–27:15.
DOI: 10.4230/lipics.sea.2025.27
[arXiv]
[BibTeX]
@inproceedings{2025_XuMexiBestuzheva_Sparsityaggregationmip_2502-01192, year = {2025}, date = {2025-07-15}, booktitle = {Proceedings of the Symposium on Experimental Algorithms}, volume = {338}, pages = {27:1--27:15}, doi = {10.4230/lipics.sea.2025.27}, archiveprefix = {arXiv}, eprint = {2502.01192}, arxiv = {arXiv:2502.01192}, primaryclass = {math.OC}, author = {Xu, Liding and Mexi, Gioni and Bestuzheva, Ksenia}, title = {Sparsity-Driven Aggregation of Mixed Integer Programs} }
Full articles
- Xu, L., and Liberti, L. (2026). Relaxations for Binary Polynomial Optimization via Signed Certificates. Mathematics of Operations Research, moor.2024.0534.
DOI: 10.1287/moor.2024.0534
[arXiv]
[BibTeX]
@article{2024_XuLiberti_RelaxationsBinaryPolynomial, year = {2026}, journal = {Mathematics of Operations Research}, pages = {moor.2024.0534}, doi = {10.1287/moor.2024.0534}, archiveprefix = {arXiv}, eprint = {2405.13447}, arxiv = {arXiv:2405.13447}, primaryclass = {math.OC}, author = {Xu, Liding and Liberti, Leo}, title = {Relaxations for Binary Polynomial Optimization via Signed Certificates} } - Xu, L., D’Ambrosio, C., Liberti, L., and Haddad-Vanier, S. (2025). Cutting Planes for Signomial Programming. SIAM Journal on Optimization, 35(2), 899–926.
DOI: 10.1137/23m1599537
[arXiv]
[BibTeX]
@article{2022_XuClaudiaLeoSonia_Cuttingplanessignomial, year = {2025}, journal = {SIAM Journal on Optimization}, volume = {35}, number = {2}, pages = {899--926}, doi = {10.1137/23m1599537}, archiveprefix = {arXiv}, eprint = {2212.02857}, arxiv = {arXiv:2212.02857}, primaryclass = {math.OC}, author = {Xu, Liding and D'Ambrosio, Claudia and Liberti, Leo and Haddad-Vanier, Sonia}, title = {Cutting Planes for Signomial Programming} } - Xu, L., and Liberti, L. (2025). Submodular maximization and its generalization through an intersection cut lens. Mathematical Programming, 211(1-2), 341–377.
DOI: 10.1007/s10107-024-02059-2
[arXiv]
[BibTeX]
@article{2023_XuLeo_Submodularmaximization, year = {2025}, journal = {Mathematical Programming}, volume = {211}, number = {1-2}, pages = {341--377}, doi = {10.1007/s10107-024-02059-2}, archiveprefix = {arXiv}, eprint = {2302.14020}, arxiv = {arXiv:2302.14020}, primaryclass = {math.OC}, author = {Xu, Liding and Liberti, Leo}, title = {Submodular maximization and its generalization through an intersection cut lens} } - PelegrĂn, M., and Xu, L. (2023). Continuous covering on networks: Improved mixed integer programming formulations. Omega, 117, 102835.
DOI: 10.1016/j.omega.2023.102835
[arXiv]
[BibTeX]
@article{2022_MercedesPelegrinXu_ContinuousCoveringMILP, year = {2023}, journal = {Omega}, volume = {117}, pages = {102835}, doi = {10.1016/j.omega.2023.102835}, archiveprefix = {arXiv}, eprint = {2203.00284}, arxiv = {arXiv:2203.00284}, primaryclass = {math.OC}, author = {PelegrĂn, Mercedes and Xu, Liding}, title = {Continuous covering on networks: Improved mixed integer programming formulations} } - Xu, L., D’Ambrosio, C., Haddad-Vanier, S., and Traversi, E. (2023). Branch and price for submodular bin packing. EURO Journal on Computational Optimization, 11, 100074.
DOI: 10.1016/j.ejco.2023.100074
[arXiv]
[BibTeX]
@article{2022_XuClaudiaSoniaEmiliano_Branchpricesmbp, year = {2023}, journal = {EURO Journal on Computational Optimization}, volume = {11}, pages = {100074}, doi = {10.1016/j.ejco.2023.100074}, archiveprefix = {arXiv}, eprint = {2204.00320}, arxiv = {arXiv:2204.00320}, primaryclass = {math.OC}, author = {Xu, Liding and D'Ambrosio, Claudia and Haddad-Vanier, Sonia and Traversi, Emiliano}, title = {Branch and price for submodular bin packing} }
🔬 Projects
SynLab MODAL 05M20ZBM
Research Campus MODAL SynLab
This project develops the SCIP Optimization Suite and generalizes application-specific advances from MODAL's vertical labs into exact methods for constraint integer programming. The focus is on structure recognition, nonlinear constraints, and efficient implementation on modern architectures.
SynLab MODAL 05M20ZBM
Apr 2020 to Mar 2030
24
74
đź’¬ Talks and posters
Conference and workshop talks
- Jul 2026
- On ADMM, Frank-Wolfe, Cutting Plane Algorithms for Quantum Entanglement Detection by Liding Xu
23rd Conference on Advances in Continuous Optimization (EUROPT), Linz - Jul 2025
- Relaxations for Binary Polynomial Optimization Via Signed Certificates by Liding Xu
8th International Conference on Continuous Optimization (ICCOPT), Los Angeles - May 2025
- Sparsity-Driven Aggregation of Mixed Integer Programs by Liding Xu
ZIB-Siemens workshop, Berlin - Feb 2025
- An Exact Framework for Quantum State Separation by Liding Xu
26th ROADEF Conference, Paris - Nov 2023
- Cutting Planes for Signomial Programming by Liding Xu
ZIB-Siemens workshop, Berlin - Jul 2023
- Modelling of Piece-Wise Linear Concave Constraints in Continous Covering Problems by Liding Xu
33rd European Conference on Operational Research (EURO), Copenhagen
đź“… Event Attendance
- Jul 2026
- 23rd Conference on Advances in Continuous Optimization (EUROPT), Linz
- Jul 2025
- 8th International Conference on Continuous Optimization (ICCOPT), Los Angeles
- May 2025
- ZIB-Siemens workshop, Berlin
- Feb 2025
- 26th ROADEF Conference, Paris
- Jun 2024
- 33rd European Conference on Operational Research (EURO), Copenhagen
- Nov 2023
- ZIB-Siemens workshop, Berlin
