MeLi DataChallenge 2020

2^nd place solution for the MeLi Challenge 2020

Instructions to run this code:

1. Place in the "./data/input" folder the following files:¹

   • item_data.jl
   • test_dataset.jl
   • train_dataset.jl

2. Then simply run the "main.py" script.^{2, 3}

The model consists of five simple recommendation algorithms which are combined using a tailored strategy.

Notes:

¹ The data can be downloaded from: https://ml-challenge.mercadolibre.com/downloads

² This script requires more or less 24 GB of RAM to run.

³ Final predictions may differ a bit from the ones submitted due to the randomness of the word2vec training algorithm.