  The RecSys Challenge 2023, presented by ShareChat, consists to predict if an
user will install an application on his smartphone after having seen
advertising impressions in ShareChat & Moj apps. This paper presents the
solution of 'Team UMONS' to this challenge, giving accurate results (our best
score is 6.622686) with a relatively small model that can be easily implemented
in different production configurations. Our solution scales well when
increasing the dataset size and can be used with datasets containing missing
values.
