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Please share a time when you disagreed with a member of your team.

If you have ever led a team, please share your experience

Can you elaborate on the definition of heteroscedasticity?

What's your approach to purging a dataset of any inherent biases?

When have you made a decision that didn't turn out the way you expected? What did you learn from that experience?

What is the big-O notation for the time complexity of an SVM training process? What governs the time complexity when an SVM model is deployed for making predictions? How does the computational demand vary for SVMs with Linear versus RBF kernels during training and inference?

If you were working in the Data Scientistrole, what are some of the key success indicators you would keep in mind?

I'd like to know more about your knowledge of machine learning architectures. Could you describe a few that you have worked with?

How would you describe yourself and why do you think that you should be hired by Yandex?

Can you please elaborate on how K-means and the Expectation-Maximization (EM) algorithm differ?