1 code implementation • 11 Jan 2024 • Nicolas Grislain, Paul Roussel, Victoria de Sainte Agathe
This paper introduces Qrlew, an open source library that can parse SQL queries into Relations -- an intermediate representation -- that keeps track of rich data types, value ranges, and row ownership; so that they can easily be rewritten into differentially-private equivalent and turned back into SQL queries for execution in a variety of standard data stores.
no code implementations • 15 Feb 2022 • Clément Sébastien Lalanne, Clément Gastaud, Nicolas Grislain, Aurélien Garivier, Rémi Gribonval
We consider the differentially private estimation of multiple quantiles (MQ) of a distribution from a dataset, a key building block in modern data analysis.
no code implementations • 4 Feb 2022 • Luca Canale, Nicolas Grislain, Grégoire Lothe, Johan Leduc
In recent years, several models have improved the capacity to generate synthetic tabular datasets.
no code implementations • 25 Oct 2021 • Nicolas Grislain, Joan Gonzalvez
There has been many works on practical systems to compute statistical queries with Differential Privacy (DP).
no code implementations • 18 Feb 2021 • Johan Leduc, Nicolas Grislain
Any conditional generative model can be used as a sub-component of the CGM, including CGMs themselves, allowing the generation of numerical, categorical data as well as images, text, or time series.
no code implementations • 12 Jun 2020 • Grégoire Jauvion, Nicolas Grislain
The optimal strategy gives a formula to determine the publisher bid as well as a way to choose the direct campaign being delivered if the publisher bidder wins the auction, depending on the impression characteristics.
no code implementations • 12 Jun 2020 • Pedro Chahuara, Nicolas Grislain, Grégoire Jauvion, Jean-Michel Renders
The real-world challenges we had to tackle consist mainly of tracking the dependencies on both the user and placement in an highly non-stationary environment and of dealing with censored bid observations.
no code implementations • 12 Jun 2020 • Nicolas Grislain, Nicolas Perrin, Antoine Thabault
Bidding in real-time auctions can be a difficult stochastic control task; especially if underdelivery incurs strong penalties and the market is very uncertain.
no code implementations • 9 Jul 2018 • Grégoire Jauvion, Nicolas Grislain, Pascal Sielenou Dkengne, Aurélien Garivier, Sébastien Gerchinovitz
The SSP acts as an intermediary between an advertiser wanting to buy ad spaces and a web publisher wanting to sell its ad spaces, and needs to define a bidding strategy to be able to deliver to the advertisers as many ads as possible while spending as little as possible.