activity
20202026
most citedFrom Matching with Diversity Constraints to Matching with Regional Quotas

29 citations · 29 across the 15 of their papers we have counts for

collaborators

16 papers

cs.GT2026

MenuNet: A Strategy-Proof Mechanism for Matching Markets

Zhaohong Sun, Makoto Yokoo

Strategy-proofness is a fundamental desideratum in mechanism design, ensuring truthful reporting and robust participation. Stability is another central requirement in matching mark…

cs.GT2026

Compatible -Relaxations of Fairness and Non-Wastefulness Under Hereditary Constraints

Tenma Wakasugi, Zhaohong Sun, Kei Kimura +1

We study two-sided matching markets under hereditary constraints, which extend beyond simple capacity limits and arise in applications such as diversity requirements and refugee re…

cs.GT2026

Maximally Diverse Stable Matchings: Optimizing Arbitrary Institutional Objectives

Gergely Csáji, Zhaohong Sun

Stable matching provides the theoretical foundation for many centralized market mechanisms. However, modern matching markets often require additional distributional objectives, suc…

cs.GT2025

Coalitions on the Fly in Cooperative Games

Yao Zhang, Indrajit Saha, Zhaohong Sun +1

In this work, we examine a sequential setting of a cooperative game in which players arrive dynamically to form coalitions and complete tasks either together or individually, depen…

cs.GT2025

Whoever Said Money Won't Solve All Your Problems? Weighted Envy-free Allocation with Subsidy

Noga Klein Elmalem, Haris Aziz, Rica Gonen +7

We explore solutions for fairly allocating indivisible items among agents assigned weights representing their entitlements. Our fairness goal is weighted-envy-freeness (WEF), where…

cs.GT2025

Participation Incentives in Online Cooperative Games

Haris Aziz, Yuhang Guo, Zhaohong Sun

This paper studies cooperative games where coalitions are formed online and the value generated by the grand coalition must be irrevocably distributed among the players at each tim…

cs.GT2025

Probabilistic Analysis of Stable Matching in Large Markets with Siblings

Zhaohong Sun, Tomohiko Yokoyama, Makoto Yokoo

We study a practical centralized matching problem which assigns children to daycare centers. The collective preferences of siblings from the same family introduce complementarities…

cs.GT2024

Achieving Balanced Representation in School Choice with Diversity Goals

Zhaohong Sun, Makoto Yokoo

Student placements under diversity constraints are a common practice globally. This paper addresses the selection of students by a single school under a \emph{one-to-one convention…

cs.GT2024

Weighted Envy-free Allocation with Subsidy

Haris Aziz, Xin Huang, Kei Kimura +4

We consider the problem of fair allocation of indivisible items with subsidies when agents have weighted entitlements. After highlighting several important differences from the unw…

cs.GT2024

Fairness and efficiency trade-off in two-sided matching

Sung-Ho Cho, Kei Kimura, Kiki Liu +5

The theory of two-sided matching has been extensively developed and applied to many real-life application domains. As the theory has been applied to increasingly diverse types of e…

cs.GT2024

Stable Matchings in Practice: A Constraint Programming Approach

Zhaohong Sun, Naoyuki Yamada, Yoshihiro Takenami +2

We study a practical two-sided matching problem of allocating children to daycare centers, which has significant social implications. We are cooperating with several municipalities…

cs.GT2023

Multi-Stage Generalized Deferred Acceptance Mechanism: Strategyproof Mechanism for Handling General Hereditary Constraints

Kei Kimura, Kwei-guu Liu, Zhaohong Sun +2

The theory of two-sided matching has been extensively developed and applied to many real-life application domains. As the theory has been applied to increasingly diverse types of e…

cs.GT2023

Matching Algorithms under Diversity-Based Reservations

Haris Aziz, Sean Morota Chu, Zhaohong Sun

Selection under category or diversity constraints is a ubiquitous and widely-applicable problem that is encountered in immigration, school choice, hiring, and healthcare rationing.…

cs.GT2022

Daycare Matching in Japan: Transfers and Siblings

Zhaohong Sun, Yoshihiro Takenami, Daisuke Moriwaki +2

In this paper, we study a daycare matching problem in Japan and report the design and implementation of a new centralized algorithm, which is going to be deployed in one municipali…

cs.GT2021

Fairness Concepts for Indivisible Items with Externalities

Haris Aziz, Warut Suksompong, Zhaohong Sun +1

We study a fair allocation problem of indivisible items under additive externalities in which each agent also receives values from items that are assigned to other agents. We propo…

cs.GT2020★ 29 cited

From Matching with Diversity Constraints to Matching with Regional Quotas

Haris Aziz, Serge Gaspers, Zhaohong Sun +1

In the past few years, several new matching models have been proposed and studied that take into account complex distributional constraints. Relevant lines of work include (1) scho…