Riccardo Colini-Baldeschi — accepted AI-conference papers

2023

Fully Dynamic Online Selection through Online Contention Resolution Schemes

Vashist Avadhanula, Andrea Celli, Riccardo Colini-Baldeschi, Stefano Leonardi, Matteo Russo

AAAI 2023technical

We study fully dynamic online selection problems in an adversarial/stochastic setting that includes Bayesian online selection, prophet inequalities, posted price mechanisms, and stochastic probing problems subject to combinatorial constraints. In the classical ``incremental'' version of the proble…

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2022

Fair Equilibria in Sponsored Search Auctions: The Advertisers’ Perspective

Georgios Birmpas, Andrea Celli, Riccardo Colini-Baldeschi, Stefano Leonardi

IJCAI 2022poster

In this work we introduce a new class of mechanisms composed of a traditional Generalized Second Price (GSP) auction, and a fair division scheme in order to achieve some desired level of fairness between groups of Bayesian strategic advertisers. We propose two mechanisms, beta-Fair GSP and GSP-EFX,…

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