activity
20242026
most citedWelfare Approximation in Additively Separable Hedonic Games

1 citations · 3 across the 6 of their papers we have counts for

collaborators

10 papers

cs.GT2026

Single-or-Sample: Online Fair Allocation for Combinatorial Agents

Shuchi Chawla, Zhiyi Huang, Pooja Kulkarni +2

We study the problem of fairly allocating indivisible goods among agents who arrive online, under the notion of maximin share (MMS) fairness. Fair allocation with online ar…

cs.GT2025

Human-AI Collaboration with Misaligned Preferences

Jiaxin Song, Parnian Shahkar, Kate Donahue +1

In many real-life settings, algorithms play the role of assistants, while humans ultimately make the final decision. Often, algorithms specifically act as curators, narrowing down…

cs.LG2025

The Complexity of Finding Local Optima in Contrastive Learning

Jingming Yan, Yiyuan Luo, Vaggos Chatziafratis +3

Contrastive learning is a powerful technique for discovering meaningful data representations by optimizing objectives based on , often given as a…

cs.GT2025

On the Existence and Complexity of Core-Stable Data Exchanges

Jiaxin Song, Pooja Kulkarni, Parnian Shahkar +1

The rapid growth of data-driven technologies and the emergence of various data-sharing paradigms have underscored the need for efficient and stable data exchange protocols. In any…

cs.GT2025★ 1 cited

Welfare Approximation in Additively Separable Hedonic Games

Martin Bullinger, Vaggos Chatziafratis, Parnian Shahkar

Partitioning a set of items or agents while maximizing the value of the partition is a fundamental algorithmic task. We study this problem in the specific setting of maximizing…

cs.GT2025

Improved MMS Approximations for Few Agent Types

Jugal Garg, Parnian Shahkar

We study fair division of indivisible goods under the maximin share (MMS) fairness criterion in settings where agents are grouped into a small number of types, with agents within e…

cs.GT2025★ 1 cited

Online Fair Division: Towards Ex-Post Constant MMS Guarantees

Pooja Kulkarni, Ruta Mehta, Parnian Shahkar

We investigate the problem of fairly allocating indivisible items among sequentially arriving agents with additive valuations, under the sought-after fairness notion of max…

cs.GT2024★ 1 cited

Effects of Vote Delegation in Blockchains: Who Wins?

Hans Gersbach, Manvir Schneider, Parnian Shahkar

This paper investigates which alternative benefits from vote delegation in binary collective decisions within blockchains. We begin by examining two extreme cases of voting weight…

cs.GT2024

Equitable Core Imputations for Max-Flow, MST and -Matching Games

Rohith R. Gangam, Naveen Garg, Parnian Shahkar +1

We study fair allocation of profit (or cost) for three central problems from combinatorial optimization: Max-Flow, MST and -matching. The essentially unequivocal choice of solut…

cs.DS2024

Robust Popular Matchings

Martin Bullinger, Gergely Csáji, Rohith Reddy Gangam +1

We study popularity for matchings under preferences. This solution concept captures matchings that do not lose against any other matching in a majority vote by the agents. A popula…