XgBoost, Random forest claasifier Gini impurity Usual DS questions Indepth A/B testing
Sr Data Scientist Interview Questions
3,505 sr data scientist interview questions shared by candidates
- What would you improve in our website?
Why do I order food from Swiggy?
Questions during interview: 1- Say you do on-line ads for two different companies, EasyJet and Mercedes. How would you present your results to the board and prove them you did not waste any money? 2- Another question that involves some economic thinking about why profits go down etc. in the on-line ad business. I recommend you review concepts such as Click-Through Rate, Conversion Rate and the auction mechanisms in on-line marketing etc. 3- After Facebook users pass away, their profile pages remain. So today we have some dead users and some users that are still alive. Will the number of dead people ever equal that of the ones that are alive? When will that happen? How would you calculate it?
Mostly around my work experience, projects mentioned on the resume and discussion around the role
logistic regression and question on it, About SVM and tradoffs Coding question: Left side of binary tree
SQL, machine learning related questions
SVD, forecasting, vanishing gradients, finding missing element in array, string manipulation
- Explain how BN/LN works in NN - How does CNN works - What is transformer architecture
Comparision of linear and non-linear models, evaluation metrics, high-level concepts on data mining algos.
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