how to get recommendations by using user-user correlation for the given table in this mail

[vinayakb malagatti]

Hi all,

I have table something looks like in DB :


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 rating table
<https://docs.google.com/spreadsheets/d/1PrShX7X70PqnfIQg0Dfv6mIHtX1k7KSZHTBfTPMv_Do/edit?usp=drive_web>
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Thanks and Regards,
Vinayak B