Explain Vision Encoders and LLM Bottlenecks
Company: Apple
Role: Machine Learning Engineer
Category: Machine Learning
Difficulty: medium
Interview Round: Technical Screen
Answer the following machine learning system fundamentals questions:
1. What is a vision encoder, and what role does it play in a computer vision or multimodal model?
2. How is a vision encoder typically trained?
3. What are the main performance bottlenecks of large language models during inference?
4. How would you optimize LLM inference memory usage and latency?
Overview: This question evaluates understanding of vision encoders and their role in computer vision and multimodal models, familiarity with typical training approaches for encoders, and the ability to identify inference bottlenecks in large language models as well as knowledge of memory and latency optimization considerations.