activity
20212026
most citedTree Splitting Based Rounding Scheme for Weighted Proportional Allocations with Subsidy

2 citations · 5 across the 16 of their papers we have counts for

collaborators

19 papers

cs.GT2026

Comparison-Based Fair Division of Indivisible Chores

Zehan Lin, Shengxin Liu, Biaoshuai Tao +1

We investigate the query complexity of fairly allocating indivisible chores among agents with additive cost functions. We depart from the standard cardinal model and assume…

cs.GT2026

Almost Envy-Freeness for Additive Mixed Manna with Entitlements: Deterministic and Randomized Guarantees

Zehan Lin, Shengxin Liu, Biaoshuai Tao +1

We investigate the fair allocation of indivisible items among agents with asymmetric entitlements in mixed manna settings, where the items consist of both goods and chores. For add…

cs.GT2026

Non-Existence of EFX Chore Allocations for Monotone Cost Functions with Binary Marginals

Zehan Lin, Shengxin Liu, Biaoshuai Tao +1

We study the existence of envy-free up to any item (EFX) allocations of indivisible chores when agents have monotone cost functions with binary marginals. For indivisible goods, th…

cs.GT2026

Fair Division by Contribution: A Shapley Value Perspective

Xiaohui Bei, Pinyan Lu, Xiaowei Wu +1

In many resource allocation problems, agents' valuations are best interpreted not as subjective preferences, but as the value they generate from receiving resources. Such valuation…

cs.GT2026

Allocating Chores with Restricted Additive Costs: Achieving EFX, MMS, and Efficiency Simultaneously

Zehan Lin, Xiaowei Wu, Shengwei Zhou

In a web-based review platform, papers from various research fields must be assigned to a group of reviewers. Each paper has an inherent cost, which represents the effort required…

cs.GT2025

An FPTAS for 7/9-Approximation to Maximin Share Allocations

Xin Huang, Shengwei Zhou

We present a new algorithm that achieves a -approximation for the \emph{maximin share (MMS)} allocation of indivisible goods under additive valuations, improving the c…

cs.GT2025

Incentive Analysis of Collusion in Fair Division

Haoqiang Huang, Biaoshuai Tao, Mingwei Yang +1

We study fair division problems with strategic agents capable of gaining advantages by manipulating their reported preferences. Although several impossibility results have revealed…

cs.DS2025

Degree-bounded Online Bipartite Matching: OCS vs. Ranking

Yilong Feng, Haolong Li, Xiaowei Wu +1

We revisit the online bipartite matching problem on -regular graphs, for which Cohen and Wajc (SODA 2018) proposed an algorithm with a competitive ratio of $1-2\sqrt{H_d/d} = 1-…

cs.GT2025

When is Truthfully Allocating Chores no Harder than Goods?

Bo Li, Biaoshuai Tao, Fangxiao Wang +3

We study the problem of fairly and efficiently allocating a set of items among strategic agents with additive valuations, where items are either all indivisible or all divisible. W…

cs.GT2025

Approximately EFX and PO Allocations for Bivalued Chores

Zehan Lin, Xiaowei Wu, Shengwei Zhou

We consider the computation for allocations of indivisible chores that are approximately EFX and Pareto optimal (PO). Recently, Garg et al. (2024) show the existence of -EFX and…

cs.GT2024

Guaranteeing MMS for All but One Agent When Allocating Indivisible Chores

Jiawei Qiu, Xiaowei Wu, Cong Zhang +1

We study the problem of allocating indivisible chores to agents with additive cost functions under the fairness notion of maximin share (MMS). In this work, we propose a no…

cs.GT2024★ 2 cited

Tree Splitting Based Rounding Scheme for Weighted Proportional Allocations with Subsidy

Xiaowei Wu, Shengwei Zhou

We consider the problem of allocating indivisible items to a set of heterogeneous agents, aiming at computing a proportional allocation by introducing subsidy (money). It h…

cs.GT2023

On the Existence of EFX (and Pareto-Optimal) Allocations for Binary Chores

Biaoshuai Tao, Xiaowei Wu, Ziqi Yu +1

We study the problem of allocating a group of indivisible chores among agents while each chore has a binary marginal. We focus on the fairness criteria of envy-freeness up to any i…

cs.GT2023

One Quarter Each (on Average) Ensures Proportionality

Xiaowei Wu, Cong Zhang, Shengwei Zhou

We consider the problem of fair allocation of indivisible items to a group of agents with subsidy (money). Our work mainly focuses on the allocation of chores but most of o…

cs.DS2023

Improved Competitive Ratios for Online Bipartite Matching on Degree Bounded Graphs

Yilong Feng, Xiaowei Wu, Shengwei Zhou

We consider the online bipartite matching problem on -bounded graphs, where each online vertex has at most neighbors, each offline vertex has at least neighbors, and…

cs.GT2023

Multi-agent Online Scheduling: MMS Allocations for Indivisible Items

Shengwei Zhou, Rufan Bai, Xiaowei Wu

We consider the problem of fairly allocating a sequence of indivisible items that arrive online in an arbitrary order to a group of n agents with additive normalized valuation func…

cs.DS2023

Improved Competitive Ratio for Edge-Weighted Online Stochastic Matching

Yilong Feng, Guoliang Qiu, Xiaowei Wu +1

We consider the edge-weighted online stochastic matching problem, in which an edge-weighted bipartite graph G=(I\cup J, E) with offline vertices J and online vertex types I is give…

cs.GT2023★ 2 cited

Weighted EF1 Allocations for Indivisible Chores

Xiaowei Wu, Cong Zhang, Shengwei Zhou

We study how to fairly allocate a set of indivisible chores to a group of agents, where each agent has a non-negative weight that represents its obligation for undertakin…

cs.GT2021★ 1 cited

Approximately EFX Allocations for Indivisible Chores

Shengwei Zhou, Xiaowei Wu

In this paper, we study how to fairly allocate a set of m indivisible chores to a group of n agents, each of which has a general additive cost function on the items. Since envy-fre…