recsys2018

The third place solution in RecSys Challenge 2018 by Avito team.

To start it is necessary folder 'data' with data in json and challenge_set.json file.

The order of execution:

1. json_to_dataframe.ipynb
2. validation_strategy.ipynb
3. lightfm.ipynb
4. lightfm_text.ipynb
5. candidate_selection.ipynb
6. lightfm_features.ipynb
7. co_occurence_features.ipynb
8. xgboost.ipynb