Data engineer Interview Questions

Show a bunch of customers happy, sad, controversial messages for a week or so in their newsfeed along with all other news feeds and see whether any relation between their like or dislike with the other activities of the same customers. Will this tell us anything?

no

Indeed, it occupies space in proportion to the number of rows contained.

study basic probability and distribution principles. also the basics of bayesian statistics

I recently interviewed as well. As you said, i got the transaction data assessment. I am struggling to find a way to make this work.

def ques_remover(N): for e in range(N): if e%2 == 0: yield ‘110100’ else: yield ‘111100’

Then u can iterate over the generator function

2) Model complexity Vs training time; precision vs recall

bias vs variance

there is a diferent approchs to evaluatee a model : AIC or BIC criterion ... Cross validation and using the score model on test data

Iterate through the points, comparing each point with previous and the next point.