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What's the best way to find the longest substring that doesn't contain any repeated characters?

In a previous role with a lot of responsibility, how did you overcome a challenge?

Is Rectified Linear Unit a good activation function?

How would you approach building a demand forecasting model for a ride-sharing service? What factors would you consider and what data sources would you use? Can you walk me through the steps you would take to develop and validate such a model?

What did you learn from a recent failure? How has this failure made you a better Data Scientist?

Talk about a time you had a conflict with your manager.

What are ROC curves used for and what does the AUC tell us in model assessment?

What would be your approach for creating a podcast search engine that enables users to find specific topics within transcripts of various shows?

Could you tell me about a project you are very proud of?

Illustrate how the Monte Carlo method can estimate the value of Pi.