I am Jingye Xu, a third-year Ph.D. student in the Algorithm, Combinatorics, and Optimization program at Georgia Tech. I am fortunate to have been advised by the amazing Santanu S. Dey and Diego Cifuentes. I earned my Bachelor’s in Computer Science from the University of Waterloo, where I spent wonderful years on semidefinite programming with the incredible Levent Tunçel and Stephen A. Vavasis.

My research interest  is optimization, probability, and convex geometry. (google scholar)

1. Asymptotically tight Lagrangian dual of smooth nonconvex problems via improved error bound of Shapley-Folkman Lemma

   • submitted (2026)

   • Santanu S Dey, Jingye Xu

2. Lagrangian dual with zero duality gap that admits decomposition

• IPCO (2025) and under the revision

• Diego Cifuentes, Santanu S Dey, Jingye Xu

3. Branching with a pre-specified finite list of -sparse split sets for binary MILPs

• under the revision

• Santanu S Dey, Diego Morán, Jingye Xu

4. Sensitivity analysis for mixed binary quadratic programming

• IPCO (2024) and Mathematical Programming (2025)

• Diego Cifuentes, Santanu S Dey, Jingye Xu

5. Computational complexity of decomposing a symmetric matrix as a sum of positive semidefinite and diagonal matrices 

• • Foundations of Computational Mathematics (2023) 

  • Levent Tunçel, Stephen A. Vavasis, Jingye Xu

1. INFORMS Optimization Society Student Paper Prize Honorable Mention (2025)

2. Shabbir Ahmed PhD Fellowship (2024)

3. INFORMS George Nicholson student paper competition finalist (2024)

4. ARC-ACO Fellowship (2024)

5. Beerman Fellowship (2023,2024)

6. Herbert P. Haley Fellowship (2023)

7. Stewart Fellowship (2022)

8. ISyE Premium Fellowship (2022,2023)

1. Probabilistic analysis of Branch-and-Price on two-stage stochastic integer programs

• poster at MIP 2023 workshop (2025)

• presentation at INFORMS Annual Meeting (2025)

2. Copositive Dual and Sensitivity Analysis of MBQP

• presentation at INFORMS Annual Meeting (2024)

• presentation at IPCO (2024)

• presentation at INFORMS Annual Meeting (2023)

• poster at MIP 2023 workshop (2023)

3. Lagrangian dual with zero duality gap that admits decomposition

• presentation at IPCO (2025)

• presentation at INFORMS Annual Meeting (2024)

• poster at MIP 2024 workshop (2024)