Do SQL joins with out using Join?
Senior Data Scientist Interview Questions
3,387 senior data scientist interview questions shared by candidates
Fundamentals such as difference between covariance and causation , Bayer Theorem. Questions about my previous projects Explain over fitting to a client
Questions around projects done in earlier workplace. Explanation of some core deep learning concepts and it's application. Discussion on details of model and data science application experienced during earlier projects.
A project you worked on, feature selection, over-fitting of the model. What do you do when the features are correlated. What is the main difference between the F1 score and ROC-AUC? How do you decide between different models? What does MLE correspond to in Logistic Regression?
how would you go about imputing data
how do you measure your model performance
What projects have you done in the previous work?
LeetCode "704. Binary Search". Given an array of integers nums which is sorted in ascending order, and an integer target, write a function to search target in nums. If target exists, then return its index. Otherwise, return -1. You must write an algorithm with O(log n) runtime complexity.
1. write a python code foo(x) where foo(4) =3 and foo(3)=4 2. How would you design a google calendar-like app. 3. Given a jupyter notebook, find what was done wrong. Try going over model assumptions, accurate metrics for imbalanced data etc... They give you the data in advance so try going over it and predict what they might ask about it
How driven are you compared to others you know? a) I'm the most driven person I know b) I'm in the top X% (10-25%... forget exact number) of people I know c) I'm as driven as most d) less driven than most
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