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George Christodoulou

4 accepted papers

2025

Maximin Share Guarantees for Few Agents with Subadditive Valuations

IJCAI 2025

We study the problem of fairly allocating a set of indivisible items among a set of agents. We consider the notion of (approximate) maximin share (MMS) and we provide an improved lower bound of 1/2 (which is tight) for the case of subadditive valuations when the number of agents is at most four. We

Cited by 0SourcePDFScholar
2022

Truthful Aggregation of Budget Proposals with Proportionality Guarantees

AAAI 2022technical

We study a participatory budgeting problem, where a set of strategic agents wish to split a divisible budget among different projects by aggregating their proposals on a single division. Unfortunately, the straightforward rule that divides the budget proportionally is susceptible to manipulation. Re…

Cited by 12SourcePDFScholar