why did you apply? why didn't you get a phd?
Sr Data Scientist Interview Questions
3,513 sr data scientist interview questions shared by candidates
1) Technical difference between Pyspark and Pandas 2) If you have large dataset with 1000s of features and only want some important feature, how will you identify it? 3) Dimensionality reduction? And why PCA is not an ideal solution in real world? Any other options? 4) If you have to build a model for Business partners regarding calls received by them for Opening account, paying bill and q&a? How will you design the whole ML algorithm from scratch? What features you will consider as important? How will you get the data? All steps involved till end. 5) For continuous and categorical features, which ML algorithm is best? And why?
Given activity logs from the product, what features would you build to predict churn?
Explain what is target leakage.
How to generate a vector using word2vec?
Do you feel confident to lead projects?
Tell me about a time you’ve worked with a cross-functional group of people and had to convince them of something they weren’t originally convinced of.
Talk me about your experience.
Why do you want to work at Evidation? How would you design an experiment to test...
Can you write typo free code while a 22 year old CS major with less than a year of experience looks over your shoulder and points out typos after telling you typos don’t matter?
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