Compare DCN v1 vs v2 and A/B test
Company: Apple
Role: Machine Learning Engineer
Category: Machine Learning
Difficulty: medium
Interview Round: Technical Screen
Overview: This question evaluates understanding of deep learning model architectures (DCN v1 vs v2), feature interaction modeling, production training and serving trade-offs, and end-to-end online experimentation for CTR/CVR recommender and ads systems, and sits in the Machine Learning domain focused on ranking and personalization.