Explain what PCA is to a developer.
Learning Technology Interview Questions
8,876 learning technology interview questions shared by candidates
Volume of all data from internet?
- Please briefly introduce yourself and your background.
Regarding different algorithms and projects done
They wanted to know how motivated I am in anything.
1) Can you explain the difference between the Random Forest and XGBoost algorithms? 2) What are L1 and L2 regularization techniques, and which one would you use for feature selection? 3) What are the different model deployment options available in Amazon SageMaker? 4) How would you monitor a deployed model on SageMaker to ensure its performance over time? 5) Can you tell me about a research paper that you found particularly inspiring or impactful? What made it stand out to you?
Core concepts about machine learning. Deep dive into previous ML-related projects and experiences
Most interviews were technical. First interview was high-level algorithmic question about designing an algo to find closest point in 2D map with limited informations, and to reason on the complexity of the algo I come up with.
Questions related to basic ML
Senior ML researcher role - leetcode + basic ML questions, applied research discussion, systems design discussion, each 1 to 1.5h Squad lead role - leadership interview 1h
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