Coding : Pandas grouping function, List operations SQl : Find sales progression year on year using SQl and pandas Kmeans clustering working , imbalanced data set, loss function, Random forest pruning, Hyperparameter tuning, OOPs concept, python List and set , DBSCAN hyperparameter.
Data Scientist Senior Interview Questions
3,387 data scientist senior interview questions shared by candidates
Tell me about a side project you worked on - what motivated the choice, what skills you learned, the overall outcome.
calcolare la crescita del brand A, avendo la sua market share l'anno precedente e l'anno successivo e le market share e crescita del brand B.
nel test online mi è stato chiesto il problema su voli fra località con diversi fusi orari
Domanda di probabilità nel girare tre monete e calcolare cosa succedeva agli step successivi
Tell me about yourself?
[home task] You get the data and you have to extract from it a lot of stuff. SQL queries, python code in notebooks. I cant share much more details but task was very time consuming
What is your current situation?
Machine Learning, what clustering method would you use for this data?
In 4 hours to develop a use case plus a presentation of multiple use cases I could think.
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