Interview Question

How can you tell if your model is working?

How would you create a model to find bad sellers on marketplace?

What functionalities would be helpful in the creation of reactions on Facebook?

What's your favorite Facebook product and how can we improve it?

How would you improve notifications?

What is "recall", can you explain it from scratch?

How would you explain p-value to non-technician?

What is R squared? Can it take negative values?

How would you do an A/B test on a new metric to see if it truly captures meaningful social interactions?

You're given two tables. One contains the date, post_id, relationship (e.g. friend, group, page), and interaction (e.g. like, share, etc.). The second table contains post_id, and the ID of the person who posted. How many likes were made on friend ...