In an ecommerce website, users can bookmark products and bookmark other users.
I'd like to display a custom feed of products for logged-in users.
Questions:
1) How to get products user would like most, based on the similarity of products they bookmarked.
2) What services should best fit this use case?
I though in 'retrieve-and-rank' as starting point, but maybe 'Personality Insights' also should be used in conjunction with retrieve-and-rank.
Can you provide a simple code or query as example?