Predicting the Next Elevator Call Location
Company: Coupang
Role: Data Scientist
Category: Machine Learning
Difficulty: medium
Interview Round: Technical Screen
Overview: This machine learning question tests the ability to design a predictive model for spatio-temporal demand forecasting, covering problem framing, feature engineering, and evaluation strategy. It assesses practical ML system design skills including model selection, cold-start handling, and translating offline metrics into real-world business outcomes.
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