no code implementations • 6 Oct 2021 • Thibaut Cassard, Grégoire Jauvion, Antoine Alléon, Boris Quennehen, David Lissmyr
Then, the engine is based on a U-Net architecture built with several of those blocks, giving it the ability to process inputs and to output predictions at different resolutions.
no code implementations • 22 Jun 2020 • Thibaut Cassard, Grégoire Jauvion, David Lissmyr
An other strong conclusion is that in some areas with a high density of low-cost sensors, the engine performs better when fed with low-cost sensors' measurements only than when fed with official monitoring stations' measurements only: this suggests that an air quality monitoring network composed of low-cost sensors is effective in monitoring air quality.
no code implementations • 14 Jun 2020 • Antoine Alléon, Grégoire Jauvion, Boris Quennehen, David Lissmyr
This paper presents an engine able to forecast jointly the concentrations of the main pollutants harming people's health: nitrogen dioxyde (NO2), ozone (O3) and particulate matter (PM2. 5 and PM10, which are respectively the particles whose diameters are below 2. 5 um and 10 um respectively).
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 • 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 • 14 Feb 2020 • Grégoire Jauvion, Thibaut Cassard, Boris Quennehen, David Lissmyr
Plume Labs has deployed a similar prediction engine to build several products aiming at providing air quality data to individuals and businesses.
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.