What would you do if a costumer calls and did everything like the protocol said and wants his money back?
Data Scientist Interview Questions
Data Scientist Interview Questions
In een sollicitatiegesprek voor de functie data scientist (M/V/X) kunt u verwachten dat de werkgever vragen stelt die uw vaardigheden voor gegevensmodellering, probleemoplossing en programmeren onderzoeken. Wees voorbereid op algemene vragen die uw kennis van statistiek en data science. Stel u ook in op open vragen die uw creativiteit, sociale vaardigheden en formele opleiding in gegevensmodellering en programmeren testen.
Meest gestelde sollicitatievragen voor een data scientist (M/V/X) en hoe te antwoorden
Vraag 1: Welke gegevensmodelleertechnieken hebben uw voorkeur en waarom?
Vraag 2: Hoe zou u nepaccounts op Instagram detecteren die gebruikt worden om consumenten op te lichten?
Vraag 3: Beschrijf omstandigheden die een lijst, tupel of set in Python vereisen.
54,344 data scientist interview questions shared by candidates
The data challenge is pretty standard, give you a data set and let you build a predictive model and put together some insights. Phone and onsite interviews are all technical interviews. Some statistics (sampling, hypothesis testing, power calculation, etc.), some product sense (whether to launch some features, why some metric changed, etc.), also a CS-like question.
I was asked about the way I would design the "people you may know" application of LinkedIn and about the way I would group "similar" people and jobs with people etc. More or less it was a discussion about collaborative filtering , classification and prediction models (k-means clustering, bayesian model, decision trees ).
How many colors do you need to paint a graph that is built from a union of two trees?
behavioral questions about location and fit
How would you correlate each device a person visits the website with back to that person?
If you had 1000 factors for a ML model, how would you go about reducing this and how would you know when to stop. reducing
Two random variables have a uniform distribution between 0 and 1. What will be the expected value of the difference of these variables?
What is maximum likelihood estimation?
Imagine you have N pieces of rope in a bucket. You reach in and grab one end-piece, then reach in and grab another end-piece, and tie those two together. What is the expected value of the number of loops in the bucket?
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