ICBO 2026 - Talks by Day and Time
The presenting speaker is shown in bold. The last speaker of the session always serves as the session chair.
Talks shown with strikethrough have been cancelled.
Jump to a day: Monday, August 3 · Tuesday, August 4 · Wednesday, August 5
Monday, August 3
Morning Session I — 10:30 AM – 12:00 PM
SESSION 1: Bilevel Optimization with Multiple Leaders or Followers (Room G29)
| Author(s) | Title |
| Hori, Atsushi; Okuno, Takayuki; Fukuda, Ellen H. | Utilization of the Regularized Nikaido-Isoda Function for Multi-Leader-Follower Games Beyond Followers’ Convexity |
| Svensson, Anton; Salas, David | Existence of solutions for deterministic bilevel games under a general Bayesian approach |
| Yu, Xinyue; Liu, Shaonan; Yih, Yuehwern; Kong, Nan | Government Subsidy Optimization for Redesigning Mutually Disjoint for-Profit Service Networks – A Single-Leader Multi-Follower Bilevel Programming Approach |
| Flocco, Dominic; Gabriel, Steve; Schiewe, Philine | A Nested Benders Decomposition Framework for Multi-Follower Bilevel Optimization |
SESSION 2: Robust and Stochastic Problems (Room G30)
| Author(s) | Title |
| Chen, Shuyi; Zhu, Shixiang; Sioshansi, Ramteen | Large-Scale Resilience Planning for Wildfire-Prone Electricity-System via Adaptive Robust Optimization |
| Gu, Wei; Chen, Shuyi; Zhu, Shixiang; Sioshansi, Ramteen | Multistage Adaptive Robust Optimization for Irreversible Long-term Resilience Planning |
| Ebrahimi, Mohammadjavad; Shanbhag, Uday V.; Yousefian, Farzad | On the Resolution of Stochastic MPECs over Networks: Distributed Implicit Zeroth-Order Gradient Tracking Methods |
| Soto-Vergel, Angelo; Walteros, Jose; Ramirez-Rios, Diana; Borrero, Juan | A Bilevel Stochastic Optimization Framework for Strategic Deployment of Survivor Geolocation Systems and Rescue Teams in Post-Disaster Operation |
SESSION 3: Bilevel Optimization for the Electricity Sector 1 (Room G27)
| Author(s) | Title |
| Chen, Yize | Learning-Augmented Stackelberg Games for Scalable Demand Response in Electricity Markets |
| Cai, Chengyi; Zhang, Peter; Zhu, Woody | Two-Stage Stochastic Optimization for Reliable and Grid-Compatible Expansion of AI Data Centers |
| Bulaich Mehamdi, Abdellah; van Ackooij, Wim; Brotcorne, Luce; Gaubert, Stéphane; Jacquet, Quentin | Electricity Pricing: A Bilevel Programming Approach for Time-of-Use Pricing and Flexible Consumers |
Rojo, Luis; Anjos, Miguel F.; Brotcorne, Luce; Gendreau, Michel | The Charging Facility Location-and-Operation Problem |
Afternoon Session I — 1:30 PM – 3:00 PM
SESSION 4: Solvers and Instances (Room G29)
| Author(s) | Title |
| Thürauf, Johannes; Kleinert, Thomas; Ljubić, Ivana; Ralphs, Ted; Schmidt, Martin | BOBILib: Bilevel Optimization (Benchmark) Instance Library |
| Bolusani, Suresh; Battista, Federico; Ralphs, Ted | GUMBO: A Software Framework for Generalized Benders’ Decomposition of Mixed-Integer Bilevel and Two-Stage Stochastic Optimization |
| Ashraf, Mahmoud; Lamperski, Jourdain; Prokopyev, Oleg | Generalizing single-level relaxations for bilevel linear programs |
SESSION 5: Nonlinear Bilevel Optimization (Room G30)
| Author(s) | Title |
| Song, Zitao; Padmanabhan, Swati; Zhang, Zhe | Goldstein Piecewise Smooth Exploration for Linearly Constrained Bilevel Optimization |
Dey, Soumitra | A New Class of Convex Functions and Characterizations |
| Sharifi, Sina; Yazdandoost Hamedani, Erfan; Fazlyab, Mahyar | Sequential QCQP for Bilevel Optimization with Line Search |
SESSION 6: Location Problems (Room G27)
| Author(s) | Title |
| Almeida Silva, Warley; Carvalho, Margarida; Jena, Sanjay Dominik | Stackelberg Dynamic Location Planning under Cumulative Demand |
| Ju, Jiachen; Zeng, Bo; Zeng, Shangzhi; Zhang, Jin | Solving A Discrete Bilevel Healthcare Facility Location Problem via Submodular Maximization and Branch-and-Cut |
| Choi, Yeonjun; Zeng, Bo; Lee, Kangbok | Exact Algorithms for Robust Container Pre-Marshalling and Relocation under Retrieval-Priority Uncertainty |
Afternoon Session II — 3:30 PM – 5:00 PM
SESSION 7: Uncertainty in Bilevel Optimization 1 (Room G29)
| Author(s) | Title |
Cotrina, John; Flores, Gonzalo; Salas, David; Svensson, Anton | Stability of expectation with decision-dependent uncertainty over moving sets |
| Vasquez, Sebastian; Bodur, Merve; Pagnoncelli, Bernardo | Bridging Stochastic and Bilevel Optimization: A Unified Framework for Hierarchical Decisions under Uncertainty |
| Xie, Yu; Ralphs, Ted K; Prokopyev, Oleg | Robustness and Bounded Rationality in Mixed Integer Bilevel Linear Optimization |
SESSION 8: Bilevel and Inverse Optimization 1 (Room G30)
| Author(s) | Title |
| Zhou, Wenbin; Orfanoudaki, Agni; Zhu, Shixiang | Conformalized Decision Risk Assessment |
| Wu, Guanting; Zhang, Peter | Learning from Experts under Decision Coupling: An Application to Robust Disaster Response |
| Holani, Anurag; Gupta, Rishabh; Zhang, Qi | An inverse mixed-integer optimization framework for learning interpretable models of expert decision-making |
SESSION 9: Equilibria and Bilevel Optimization (Room G27)
| Author(s) | Title |
| Gautam, Pankaj | Forward-backward-forward dynamics for bilevel equilibrium problem |
| Lin, Yen-Cherng | Set Equilibrium Problems with Bilevel Structures |
| Zhu, Quanyan | Bilevel Cooperative Dynamics and Punctuated Equilibrium: From Tactical Consensus to Strategic Coalition Formation |
Tuesday, August 4
Morning Session I — 8:30 AM – 10:00 AM
SESSION 10: Mixed-Integer Bilevel Optimization (Room G29)
| Author(s) | Title |
Machado Pacheco, Bruno; Carvalho, Margarida; Yu, Kim | Valid Inequalities for Binary Bilevel Problems with Lower-Level Graph Reformulations |
Feleke, Flagot; Kassa, Semu | Exact Solution Approach for Bi-level Mixed Integer Linear Fractional Programming Problems and its application in Sustainable Supply Chain for Agricultural Products |
| Vasquez, Sebastian; van Hoeve, Willem-Jan; Lozano, Leonardo | Network Flow-based Cuts for Binary Linear Bilevel Optimization |
| Titus, William; Lunday, Brian; Robbins, Matthew; Hopkinson, Kenneth | The Network Fortification Problem for Evacuation Operations |
SESSION 11: Uncertainty in Bilevel Optimization 2 (Room G30)
| Author(s) | Title |
| Sinha, Ankur | Bilevel Optimization under Uncertainty: Applications in Network Interdiction |
| Tian, Yiqi; Zeng, Bo | A Computational Study on Distributionally Robust Optimization |
| Bienstock, Daniel; Sisson, Blake | Derisking solutions to optimization problems |
| Beck, Yasmine; Ljubić, Ivana; Yan, Wenjin | Robust Combinatorial Optimization with Decision-Dependent Budget Uncertainty |
SESSION 12: Selected Applications of Bilevel Optimization 1 (Room G27)
| Author(s) | Title |
| Whitehead, Nathan | Network Interdiction of Disaster Response for Rapid Distribution and Maximal Covering of Demands |
| Zhu, Xiaoyue; Adulyasak, Yossiri; Xia, Wenyi | Joint Pricing and Capacity Investment Problem for Coopetitive Port Authorities |
Sahu, Rishabh | When Priority Fails: A Bilevel Framework for Resolving Passenger–Freight Conflicts in Indian Railways |
| Hao, Hao; Brennan, Mark; Zhang, Peter | Protecting Senegal’s Road Network Against Flood Risk and Policy Uncertainty |
Morning Session II — 10:30 AM – 12:00 PM
SESSION 13: Uncertainty in Bilevel Optimization 3 (Room G29)
| Author(s) | Title |
| Sahu, Vishnu; Zhang, Qi | Robust sequential bilevel programming with unknown follower’s objective |
| Perez Tezoco, Jaime; Borrero, Juan S.; Lozano, Leonardo | A Bilevel Optimization Approach for a Class of Combinatorial Problems with Correlated Disruptions and Probing |
| Liu, Suri; Zhang, Yiling; Basciftci, Beste; Wang, Wenyuan | Stochastic Bilevel Optimization for the Network Design of Multimodal Transit Systems |
SESSION 14: Selected Applications of Bilevel Optimization 2 (Room G30)
| Author(s) | Title |
| Deng, Haoyun; Wei, Peng; Xie, Weijun | Bilevel Risk-Averse Routing and Resource Allocation for Urban Air Mobility |
Miao, Yidi; Han, Eojin; Zhang, Peter | Joint Spatial Partitioning and Dispatch via Bilevel Optimization for Last-Mile Delivery |
| Sapirstein, Abel | MOMS: A Model for Optimizing Maternal Systems of Risk-Appropriate Care |
| Song, Mingyao | Bi-Level Predict-then-Optimize for Contract Interactions in Livestream Shopping |
SESSION 15: Bilevel and Inverse Optimization 2 (Room G27)
| Author(s) | Title |
| Ley, Eva; Merkert, Maximilian | On Integral Inverse Optimization Problems |
| Nadi, Sina; Lee, Taewoo; Prokopyev, Oleg A. | On the inverse optimal value problem for a class of bilevel linear programs |
| Seidel, Tobias | Solving inverse robust optimization problems with bilevel-accelerated adaptive discretization methods |
| Ota, Matheus; Vasquez, Sebastian | A Geometric Perspective on Inverse Combinatorial Optimization via Adjacency |
Afternoon Session I — 1:30 PM – 3:00 PM
SESSION 16: Bilevel Optimization and AI Systems (Room G29)
| Author(s) | Title |
| Dumouchelle, Justin; Julien, Esther; Kurtz, Jannis; Khalil, Elias | Neur2BiLO: Neural Bilevel Optimization |
| Zhu, Quanyan | Generative LLM Signaling Games: Censorship Evasion, Semantic Blindness, and Awareness Shaping |
| Garee, Isaac; Giovannelli, Tommaso | A stochastic algorithm for bilevel optimization with a mixed-integer upper-level problem and applications to neural architecture search |
SESSION 17: Learning and Bilevel Optimization 1 (Room G30)
| Author(s) | Title |
| Zhao, Tongke; Ghadimi, Saeed; Wolkowicz, Henry | Preconditioned Bilevel Optimization |
| Elrefaei, Jessica; Hua, Kaixun; Tran, Hoang; Borrero, Juan | Graph4BiLO: Graph-Based Value Function Approximation for Bilevel Optimization |
| Zhang, Yilang; Li, Bingcong; Giannakis, Georgios B. | Learnable Loss Geometries with Mirror Descent for Scalable and Convergent Meta-Learning |
SESSION 18: Bilevel Optimization for the Electricity Sector 2 (Room G27)
| Author(s) | Title |
| Nguyen, Dai Nam; Bhuiyan, Tanveer; Zeng, Bo; Chen, Yang | A Stochastic Game-Theoretic Optimization Approach for Managing Coupled Local Electricity and Thermal Markets with Electric Vehicles and Renewable Sources |
| Andrew, Mastin | A Formulation for Power Flow Interdiction with Bounded Big-M Values |
| Kazi, Saif; Sundar, Kaarthik | On the Choice of Single-Level Reformulations for Bilevel Optimization in Optimal Power Flow Networks |
Wednesday, August 5
Morning Session I — 8:30 AM – 10:00 AM
SESSION 19: Selected Applications of Bilevel Optimization 3 (Room G29)
| Author(s) | Title |
| Arango Marin, Jaime; Bustamante Gutierrez, Lina Clemencia; Sierra Narvaez, Francisco Javier | Advanced time series modeling for forecasting imbalances in maritime transport using bi-level optimization |
| Sheldon, Andrew; Lunday, Brian; Caballero, William | The Location Set Covering Disruption Problem |
| Vo, Dung; Tran, Dat; Khanduri, Prashant | Bilevel Optimization under Non-Convex Non-Smooth Settings |
Manimangalam, Praveen | A Bilevel Optimization Framework for Self-Configuring Agentic CRM Architectures in Small-Scale Retail Enterprises |
SESSION 20: Uncertainty in Bilevel Optimization 4 (Room G30)
| Author(s) | Title |
| Hao, Hao; Zhang, Peter | Robust Paths: Geometry and Computation |
| Thürauf, Johannes; Lefebvre, Henri | Robust Bilevel Optimization with a Wait-and-See Follower: A Column-and-Constraint Generation Approach |
| Beck, Yasmine; Büsing, Christina; Ljubić, Ivana | Exact Methods for Solving k-Delete Recoverable Robust 0–1 Problems Under Budgeted Uncertainty |
SESSION 21: Interdiction Problems (Room G27)
| Author(s) | Title |
| Huntington, Rie; Zeng, Bo | Bilevel Mixed-Integer Interdiction of the Shortest Path Problem |
| Truong, Tran Mai Anh; Lozano, Leonardo; Sefair, Jorge A. | Network Interdiction with General Integer Variables |
| Dadpour, Amir; Fukasawa, Ricardo; Weninger, Noah | Improved Algorithms for Shortest-Path Network Interdiction |
| Zhou, Bo; Jiang, Ruiwei; Shen, Siqian | Submodularity and Supermodularity in Min-Cost Flow Interdiction |
Morning Session II — 10:30 AM – 12:00 PM
| Author(s) | Title |
| Zemkoho, Alain | True single-level reformulation for pessimistic bilevel optimization |
Singh, Vinay | Optimality Conditions for Nondifferentiable Interval-Valued Bilevel Optimization Problems via Tangential Subdifferentials |
| Clemente, Eneko; Prokopyev, Oleg | Dimensionality Reduction in Bilevel Linear Programming |
SESSION 23: First-Order Methods (Room G30)
| Author(s) | Title |
Chen, Lesi | First-Order Bilevel Optimization: Computability, Lower Bounds, and Near-Optimal Algorithms |
| Bohne, Jason; Rosenberg, David; Kazantsev, Gary; Polak, Pawel | Bregman Geometry for Stochastic Online Bilevel Optimization |
| Ji, Kaiyi | Lower Complexity Bounds for Nonconvex-Strongly-Convex Bilevel Optimization with First-Order Oracles |
SESSION 24: Structural and Multiobjective Perspectives in Bilevel Optimization (Room G27)
| Author(s) | Title |
| Chen, Lisha | Optimization over the Pareto set beyond convex objectives |
| Ralphs, Ted; Fallah, Samira; Battista, Federico | The Relationship Between Bilevel Optimization and Multiobjective Optimization |
| Weninger, Noah; Fukasawa, Ricardo | General framework for relaxing some Stackelberg zero-sum games |
