Machine Learning Research Interview Questions

1,879 machine learning research interview questions shared by candidates

1. What's more difficult to optimize - nonconvex or convex? 2. What activation function does better with vanishing gradient - ReLU or sigmoid? 3. Does vanishing gradient happen closer to the beginning or end of the neural network? 4. medium-level backtracking question
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Machine Learning Engineer

Interviewed at Pinterest

3.6
Mar 19, 2022

1. What's more difficult to optimize - nonconvex or convex? 2. What activation function does better with vanishing gradient - ReLU or sigmoid? 3. Does vanishing gradient happen closer to the beginning or end of the neural network? 4. medium-level backtracking question

Online assessment (75 minutes): 6 choice problems, 1 neural network calculation, 1 coding and 2 ML coding. The ML coding problem is decision tree and random forest ML system design interview Q1: how to design the user embedding? Q2: how to design a ML system for unsafe content detection? Coding interview: medium to hard level leetcode questions (not the same problem)
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Machine Learning Engineer

Interviewed at Pinterest

3.6
Jan 5, 2024

Online assessment (75 minutes): 6 choice problems, 1 neural network calculation, 1 coding and 2 ML coding. The ML coding problem is decision tree and random forest ML system design interview Q1: how to design the user embedding? Q2: how to design a ML system for unsafe content detection? Coding interview: medium to hard level leetcode questions (not the same problem)

Coding test included how to split up rows of a table / dataframe across multiple processes and shuffling the data. High level code was ok, didn't have to be completely detailed. Another coding test was finding maximum depth of a binary tree.
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Senior Machine Learning Engineer

Interviewed at NVIDIA

4.6
Feb 13, 2021

Coding test included how to split up rows of a table / dataframe across multiple processes and shuffling the data. High level code was ok, didn't have to be completely detailed. Another coding test was finding maximum depth of a binary tree.

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