Problem
Walk me through the mathematical proof of why a loss function must be convex for gradient descent to guarantee a global minimum.
Practicing as: Data Scientist interview at Foundry.aiHi, I'll play your Foundry.ai interviewer for the Data Scientist role. Candidates describe these interviews as often stressful and moderately difficult, so expect me to be direct and to the point. Take your time with the question above and answer like we're in the room.
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