RecSys Challenge 2023: From data preparation to prediction, a simple,
  efficient, robust and scalable solution
Maxime Manderlier Fabian Lecron
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.