Design "Restaurants You May Know" Recommendation Algorithm
Company: Meta
Role: Data Scientist
Category: Analytics & Experimentation
Difficulty: medium
Interview Round: Onsite
##### Scenario
Food-delivery app wants to launch a "Restaurants You May Know" recommendation feature on the home page.
##### Question
Why might users and the business need this feature? Describe how you would design the recommendation algorithm and end-to-end user experience. What experiment or metrics would you use to evaluate the feature’s impact?
##### Hints
Think CTR, order conversion, retention; propose A/B test and attribution window.
Quick Answer: This question evaluates a data scientist's competency in recommender systems, product analytics, A/B experimentation, causal inference, feature engineering, and handling business constraints such as cold-start and attribution.