  In the FARFETCH Fashion Recommendation challenge, the participants needed to
predict the order in which various products would be shown to a user in a
recommendation impression. The data was provided in two phases - a validation
phase and a test phase. The validation phase had a labelled training set that
contained a binary column indicating whether a product has been clicked or not.
The dataset comprises over 5,000,000 recommendation events, 450,000 products
and 230,000 unique users. It represents real, unbiased, but anonymised,
interactions of actual users of the FARFETCH platform. The final evaluation was
done according to the performance in the second phase. A total of 167
participants participated in the challenge, and we secured the 6th rank during
the final evaluation with an MRR of 0.4658 on the test set. We have designed a
unique context-aware system that takes the similarity of a product to the user
context into account to rank products more effectively. Post evaluation, we
have been able to fine-tune our approach with an MRR of 0.4784 on the test set,
which would have placed us at the 3rd position.
