Design a game recommendation modeling approach
Company: Roblox
Role: Software Engineer
Category: ML System Design
Difficulty: easy
Interview Round: Technical Screen
Overview: This question evaluates proficiency in end-to-end machine learning system design for recommender systems, including product goal and target definition, feature and training data construction, bias and leakage considerations, model selection, loss/optimization choices, and offline/online evaluation within a personalized game recommendation context.