About me

I am currently a 5th year PhD student advised by Professor Milind Tambe. I mostly work on algorithmic game theory and theory in machine learning, including security games, differentiable optimization, multi-armed bandits, and online learning. I also enjoy working on various social challenges in wildlife conservation and public health. I have been working on building techniques and theories in differentiable optimization to integrate optimization problems into machine learning pipeline.

Research Interests

Algorithmic game theory, machine learning, differentiable optimization, multi-armed bandit, theoretical computer science


Resume

My CV


News

[Dec 13th 2021] I am co-organizing a AASG workshop at AAMAS 2022. This workshop features the involvement of NGOs (non-government organizations) and multi-agent researchers to discuss social challenges together. Please consider submitting to our workshop!


Conference Publication

12. Coordinating Followers to Reach Better Equilibria: End-to-End Gradient Descent for Stackelberg Games

Kai Wang, Lily Xu, Andrew Perrault, Michael K. Reiter, and Milind Tambe
AAAI 2022

11. Learning MDPs from Features: Predict-Then-Optimize for Sequential Decision Problems by Reinforcement Learning

Kai Wang, Sanket Shah, Haipeng Chen, Andrew Perrault, Finale Doshi-Velez, and Milind Tambe
NeurIPS 2021 (spotlight presentation)

10. Dual-Mandate Patrols: Multi-Armed Bandits for Green Security

Lily Xu, Elizabeth Bondi, Fei Fang, Andrew Perrault, Kai Wang, and Milind Tambe
AAAI 2021 (best paper runner up)

9. Automatically Learning Compact Quality-aware Surrogates for Optimization Problems

Kai Wang, Bryan Wilder, Andrew Perrault, and Milind Tambe
NeurIPS 2020 (spotlight presentation)

8. Robust Spatial-Temporal Incident Prediction

Ayan Mukhopadhyay, Kai Wang, Andrew Perrault, Mykel Kochenderfer, Milind Tambe, and Yevgeniy Vorobeychik
UAI 2020

7. Scalable Game-Focused Learning of Adversary Models:Data-to-Decisions in Network Security Games

Kai Wang, Andrew Perrault, Aditya Mate, and Milind Tambe
AAMAS 2020

6. DeepFP for Finding Approximate Nash Equilibrium in Continuous Action Spaces

Nitin Kamra, Umang Gupta, Kai Wang, Fei Fang, Yan Liu, and Milind Tambe
GameSec 2019

5. Learning to Signal in the Goldilocks Zone: Improving Adversary Compliance in Security Games

Sarah Cooney, Kai Wang, Elizabeth Bondi, Thanh Nguyen, Phebe Vayanos, Hailey Winetrobe, Edward Cranford, Cleotilde Gonzalez, Christian Lebiere, and Milind Tambe
ECML 2019

4. Deep Fictitious Play for Games with Continuous Action Spaces

Nitin Kamra, Umang Gupta, Kai Wang, Fei Fang, Yan Liu, and Milind Tambe
Extended abstract in AAMAS 2019

3. The Price of Usability: Designing Operationalizable Strategies for Security Games

Sara Marie Mc Carthy, Corine Laan, Kai Wang, Phebe Vayanos, Milind Tambe, and Arunesh Sinha
IJCAI 2018

2. Equilibrium Refinement in Security Games with Arbitrary Scheduling Constraints

Kai Wang, Qingyu Guo, Phebe Vayanos, Milind Tambe, and Bo An
AAMAS 2018

1. Strategic Coordination of Human Patrollers and Mobile Sensors with Signaling for Security Games

Haifeng Xu, Kai Wang, Phebe Vayanos, and Milind Tambe
AAAI 2018


Workshop Publication

7. Learning Opportunistic Adversarial Model on Global Wildlife Trade

Kai Wang, Jeffrey Brantingham, and Milind Tambe
AAMAS 2021 Autonomous Agents for Social Good Workshop (AASG)

6. Active Screening on Recurrent Diseases Contact Networks with Uncertainty: a Reinforcement Learning Approach

Han Ching Ou, Kai Wang, Finale Doshi-Velez, Milind Tambe
AAMAS 2020 International Workshop on Multi-Agent Systems and Agent-Based Simulation

5. Balance Between Scalability and Optimality in Network Security Games

Kai Wang
AAMAS 2020 Doctoral Consortium

4. Adversarial Machine Learning with Double Oracle

Kai Wang, Bryan Wilder, and Milind Tambe
IJCAI 2019 Doctoral Consortium

3. Improving GP-UCB Algorithm by Harnessing Decomposed Feedback

Kai Wang, Bryan Wilder, Sze-chuan Suen, Milind Tambe, and Bistra Dilkina
ECML 2019 SoGood Workshop

2. Mobile Game Theory with Street Gangs

Sarah Cooney, Wendy Gomez, Kai Wang, Jorja Leap, P. Jeffery Brantingham, and Milind Tambe
ECML 2019 SoGood Workshop

1. Routing Games with Priorities

Kai Wang, Hong-Jyun Wang, and Ho-Lin Chen
AAAC 2016