ICBO 2026 - Talks by Day and Time
Author(s), title, and scheduled time for each talk
Presenting speaker shown in bold
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
| 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
| 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
| 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
| 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
| 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
| 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
| 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
| 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
| 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
| 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
| 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
| 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 |
Morning Session II — 10:30 AM – 12:00 PM
SESSION 13: Uncertainty in Bilevel Optimization 3
| Author(s) | Title |
| Hao, Hao; Brennan, Mark; Zhang, Peter | Protecting Senegal’s Road Network Against Flood Risk and Policy Uncertainty |
| 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
| 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
| 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
| 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
| 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
| 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
| 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
| 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
| 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 – 11:40 AM
| 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
| 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
| 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 |
