Machine Learning Research Interview Questions

1,816 machine learning research interview questions shared by candidates

There were 2 business cases related to their basic problems like hotel recommendation. You need to start describing the solution, taking into account the lack of users at the beginning, and how the solution will be improved in the future.
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Senior Machine Learning Scientist

Interviewed at Booking.com

4.1
Apr 25, 2023

There were 2 business cases related to their basic problems like hotel recommendation. You need to start describing the solution, taking into account the lack of users at the beginning, and how the solution will be improved in the future.

What is the difference between supervised and unsupervised learning? What is overfitting, and how can you prevent it? What is the purpose of splitting a dataset into training, validation, and test sets? How do you evaluate a classification model? Name some common metrics.
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Machine Learning Engineer Intern

Interviewed at Telecom Egypt

3.4
Jun 29, 2026

What is the difference between supervised and unsupervised learning? What is overfitting, and how can you prevent it? What is the purpose of splitting a dataset into training, validation, and test sets? How do you evaluate a classification model? Name some common metrics.

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