Hi, I am Yunlong Wang (王云龙), a sixth-year PhD candidate at Shanghai Jiao Tong University (SJTU), Antai College of Economics and Management (ACEM), advised by Dr. Ying Rong and Dr. Taotao He. I conducted visiting research at the University of Colorado Boulder (CU Boulder, Leeds School of Business) for two years (2023 - 2025), advised by Dr. Rui Zhang.

I am on the 2025-2026 academic job market.

My research lies at the intersection of discrete choice modeling, optimization, and revenue management, using mixed-integer programming approaches. I focus on the computational and algorithmic aspects of discrete choice models, as well as (social) network-based influence problems. I also have training in continuous optimization, particularly in advanced methods for algorithmic acceleration.

I also gained industry research experiences at Tencent (AI Lab) and Huawei, where I worked on accelerating machine learning algorithms and optimizing scheduling strategies for 5G base station operations, respectively.

Research Papers

Under Review

• Assortment Optimization for Online Video Games, with Fan You, Thomas Vossen, Rui Zhang, Production and Operations Management (POM), conditional accept. [Job Market Paper]
• An Integer Programming Approach for Quick-Commerce Assortment Planning, with Yajing Chen, Taotao He, Ying Rong, Management Science, accept.     

Publications

• Omnichannel Product Selection and Shelf Space Planning Optimization, with Yajing Chen, Zhimin Wu, Omega, 103074, 2024.      [JCR Q1, ABS 3]
• Proximal Gradient/Semismooth Newton Methods for Projection onto a Polyhedron via the Duality Gap Active Set Strategy, with Chungen Shen, Leihong Zhang, & Weihong Yang, Journal of Scientific Computing, 97(1): 3, 2023.(Code)      [JCR Q1]
• An Accelerated Active-Set Algorithm for a Quadratic Semi-definite Program with General Constraints, with Chungen Shen, Wenjuan Xue, & Leihong Zhang, Computational Optimization and Applications, 78(1): 1-42, 2021.(Code)      [JCR Q1, ABS 3]
• Limited Memory BFGS Algorithm for the Matrix Approximation Problem in Frobenius Norm, with Chungen Shen, Changxing Fan, & Wenjuan Xue, Computational and Applied Mathematics, 39: 1-25, 2020.(Code)      [JCR Q1]

Work in Progress

• Dynamic Assortment Optimization with Sequential Consideration Sets, with Rui Zhang.

• Joint Optimization of Assortment and Service Capacity Allocation in Centralized Service Systems, with Bipan Zou, Rui Zhang.

• New Formulations and Valid Inequalities for the Least Cost Influence Problem on Social Networks, with Rui Zhang, S. Raghu Raghavan.

• Gap Safe Detection Rules of Active Set for Convex Programs and Application in an Augmented Lagrangian Algorithm, with Chungen Shen.

Conferences and Talks

• Assortment Optimization for Online Video Games
  • 2025 INFORMS Revenue Management and Pricing Section Conference, New York, July 2025.
  • 2025 INFORMS International Meeting, Singapore, July 2025.
  • 2025 Purdue Supply Chain and Operations Management Conference, Purdue, August 2025.
  • 2025 INFORMS Annual Meeting, Atlanta, October 2025.
• New Formulations and Valid Inequalities for the Least Cost Influence Problem on Social Networks.
  • 2024 INFORMS Telecommunications and Network Analytics Conference, Online, May 2024.
  • 2024 Purdue Operations Conference, Purdue University, August 2024.
  • 2024 INFORMS Annual Meeting, Seattle, October 2024.
• Integer Programming Approach for Quick-Commerce Assortment Planning.
  • Invited Talk at the National University of Singapore (NUS), Singapore, Aug. 2025.
  • Doctoral Forum of Economics and Management, ACEM, Shanghai Jiao Tong University, July 2023.
• Proximal Gradient/Semismooth Newton Methods for Projection onto a Polyhedron via the Duality-Gap-Active-Set Strategy.
  • Mathematical Optimization Society - Operations Research Society of China (ORSC-MOS23), Chengdu, May 2023
  • An Accelerated Active-set Algorithm for Semidefinite Programs with General Constraints.
  • The 3rd Statistics and Operations Research Young Scholars Forum, Operations Research Association in Shanghai, December 2019.

Service

• Reviewer of Networks.
• Session chair of 2025 INFORMS Annual Meeting, Atlanta, October 2025.
• Session chair of 2025 INFORMS International Meeting, Singapore, July 2025.
• Session chair of 2024 INFORMS Annual Meeting, Seattle, October 2024.
• Coordinator and Team Leader, Doctoral Forum of Antai College of Economics and Management, Shanghai Jiao Tong University, July 2023.

Honors

• Outstanding Paper Award in the Doctoral Forum of ACEM, Shanghai Jiao Tong University. 2023
• First Prize for Excellent Paper in the 3rd Statistics and Operations Research Young Scholars Forum. 2019
• Second Prize in the National Post-Graduate Mathematical Contest in Modeling. 2018
• First Prize in the Chinese College Students’ Statistical Modeling Competition. 2017
• Graduation with Honor: Distinctive Graduate Award of Shanghai. 2017

Interesting Visualization

• The concept of perspective cone is applied in An Integer Programming Approach for Quick-Commerce Assortment Planning. I learned this through the collaboration with Taotao.