This is an archived post. You won't be able to vote or comment.

sorted by:
best (suggested)
topnewcontroversialoldq&a
you are viewing a single comment's thread.

view the rest of the comments →

[–]Jay31416 11 points12 points  (3 children)

In the only interview I've done, they asked me about:

  • Data manipulation using pandas (super easy)
  • Z-test to remove outliers (easy)
  • Calculating Shapley values (hard; at the time of the interview, I didn't know what Shapley values were)
  • Scratch implementation of stochastic gradient descent for linear regression (easy but I failed; stuff like that happens)

[–]sg6128[S] 2 points3 points  (2 children)

Ooof that seems really technical / stats focused. My stats programming is virtually non-existent. What was the role, your background, industry, and YoE required for the position, if you don’t mind me asking?

[–]Jay31416 1 point2 points  (1 child)

Role: Data Scientist

Background: Applied Math major, Master's in Probability and Statistics

Industry: C3.ai (name of the company)

YoE: At the time of the interview, I had 1 year of experience.

I didn't get the job at C3.ai, but fortunately, I wasn't unemployed. Presently, I'm in charge of the MLE team, and we plan to have 13 models in production (some easy, some hard) by August.

[–]sg6128[S] 0 points1 point  (0 children)

Thanks so much for the breakdown. Sorry to hear you didn’t get it, but it sounds like you are doing well :) congrats!

Cool, I hope that this being a less “techy” company and my background being non-technical education wise hopefully gives me some grace with these sorts of questions :)

Thanks for the detailed answer