Recommendations using graph neural networks

[Vishal]

Nice article Gaurav! Section 1 says that we can read more about graph based recommendation systems in the "Further Reading" section. Can you please add one.

[Andrei Lopatenko]

Would be interested to see details of efficient retrieval systems for two-tower networks

[Gaurav Chakravorty]

Thanks for the question.

Both in the two tower model and in GNNs, for efficient retrieval, one can efficient maximum-inner-product-search systems like ScaNN ( https://github.com/google-research/google-research/tree/master/scann ).

I have a COLAB here that shows how to use ScaNN : https://colab.research.google.com/drive/1nGweHc8_ytTgQrI8g0oRgjgk0o6vIJJt#scrollTo=euffs3pj8X4O

Also please check out an implementation by Pinecone for efficient nearest neighbor search : https://www.pinecone.io/product/

[Andrei Lopatenko]

Thank you