Mashbat Suzuki

About:

I am a Postdoctoral Fellow hosted by Toby Walsh, at the School of CS & Eng at UNSW Sydney. 

Prior to joining UNSW, I finished my PhD in computer science at McGill University under the supervision of Adrian Vetta. 

Research Interests:

My research interests lie at the interface between AI, theoretical computer science, and economics. In particular, my recent research has been focused on fair division and social choice. Broadly, I am interested theoretical computer science and its applications.  

Recent News:

• Exciting new paper (with Siddharth Barman) is out, where we solve an open problem of Garg et. al. (STOC 2024)!  

• Our paper "Maximum Flow is Fair: A Network Flow Approach to Committee Voting" is accepted at EC 2024! 

• I visited Gerardo Berbeglia and Matthew Tam at Uni Melbourne and gave a talk at OPTIMA seminar

• Two papers accepted at AAAI 2024!

(Note: In my publications, the authors are listed in alphabetical order, following the convention in theoretical computer science)

Preprint: 

• Compatibility of Fairness and Nash Welfare under Subadditive Valuations

Siddharth Barman and Mashbat Suzuki. 2024

• Neighborhood Stability in Assignments on Graphs

Haris Aziz, Grzegorz Lisowski, Mashbat Suzuki, Jeremy Vollen. 2024

Publications: 

• Maximum Flow is Fair: A Network Flow Approach to Committee Voting

Mashbat Suzuki and Jeremy Vollen 

To appear in the Proceedings of the  25th ACM Conference on Economics and Computation (EC 2024)

• Approval-Based Committee Voting under Uncertainty

Hariz Aziz, Venkateswara Rao Kagita,  Baharak Rastegari, Mashbat Suzuki

To appear in the Proceedings of the 17th International Symposium on Algorithmic Game Theory (SAGT 2024)

• Fair Lotteries for Participatory Budgeting

Haris Aziz, Xinhang Lu, Mashbat Suzuki, Jeremy Vollen, and Toby Walsh

Proceedings of the 38th AAAI Conference on Artificial Intelligence (AAAI 2024)

• Envy-free House Allocation under Uncertain Preferences

Haris Aziz, Isaiah Iliffe, Bo Li, Angus Ritossa, Ankang Sun, Mashbat Suzuki

Proceedings of the 38th AAAI Conference on Artificial Intelligence (AAAI 2024)

• Maximin Fair Allocation of Indivisible Items under Cost Utilities

Sirin Botan, Angus Ritossa, Mashbat Suzuki, Toby Walsh

Proceedings of  the 16th International Symposium on Algorithmic Game Theory (SAGT 2023)

• Best-of-Both-Worlds Fairness in Committee Voting

Haris Aziz, Xinhang Lu, Mashbat Suzuki, Jeremy Vollen, Toby Walsh

Proceedings of  the 19th Conference on Web and Internet Economics (WINE 2023)

• Fair Allocation of Two Types of Chores

Haris Aziz, Jeremy Lindsay, Angus Ritossa, Mashbat Suzuki. 

Proceedings of the 22nd International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2023)

• Coordinating Monetary Contributions in Participatory Budgeting

Haris Aziz, Sujit Gujar, Manisha Padala, Mashbat Suzuki, Jeremy Vollen. 

Proceedings of the 16th International Symposium on Algorithmic Game Theory (SAGT 2023)

• Random Rank: The One and Only Strategyproof and Proportionally Fair Randomized Facility Location Mechanism

Haris Aziz, Alexander Lam, Mashbat Suzuki, Toby Walsh. 

Proceedings of the 36th Conference on Neural Information Processing Systems. (NeurIPS 2022)

• Two Birds With One Stone: Fairness and Welfare via Transfers

Vishnu V.Narayan, Mashbat Suzuki, Adrian Vetta.

Proceedings of the 14th International Symposium on Algorithmic Game Theory (SAGT 2021)

• Pirates in Wonderland: Liquid Democracy has Bicriteria Guarantees

Jonathan Noel, Mashbat Suzuki, Adrian Vetta. 

Proceedings of the 14th International Symposium on Algorithmic Game Theory (SAGT 2021)

• How Many Freemasons Are There? The Consensus Voting Mechanism in Metric Spaces

Mashbat Suzuki, Adrian Vetta. 

Proceedings of the 13th International Symposium on Algorithmic Game Theory (SAGT 2020)

• One Dollar Each Eliminates Envy 

Johannes Brustle, Jack Dippel, Vishnu V.Narayan, Mashbat Suzuki, Adrian Vetta. 

Proceedings of the 21st ACM Conference on Economics and Computation (EC '20)

• Conformally covariant operators and conformal invariants on weighted graphs

Dmitry Jakobson, Thomas Ng, Matthew Stevenson, Mashbat Suzuki. 

Geom Dedicata 174, 339–357

Survey and Thesis: 

• Mixed Fair Division: A Survey

Shengxin Liu, Xinhang Lu, Mashbat Suzuki, and Toby Walsh

Journal of Artificial Intelligence Research (JAIR), 80:1373-1406, 2024

• On Fair Division and Consensus Voting

Mashbat Suzuki

PhD Thesis, McGill University (2021)