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Data Interview Questions
132,990 data interview questions shared by candidates
Find out whether an array/string contains non-repeated characters.
Mostly technical / coding questions with limited time to answer, talk about past projects (with techncial depth), almost no questions with respect to data science (statistics, ml, math, modeling ...)
Interviewer: What is the technique to evaluate Logistic regression. I answered Cross entropy. Interviewer: no
Given measurements of acceleration taken from a wristband, with second by second acceleration in the X, Y, Z axis, how would you predict if the person wearing the wrist is sitting, walking or just standing?
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Let's say you finished developing a machine learning model and you are getting 95% accuracy. Should you be happy?
Can you explain what regularization is. What's the difference between L1/L2 regularization
From the csv files, how is "A" improved over "B"? Do you have any other findings?
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