To create a network graph from a log file in 20 mins. Guess the interviewer wanted a simple dictionary as a data structure but confused me with calling it a network graph repeatedly. If he indeed wanted it like a graph where all properties such as pre order , in order traversal could be applied. It's no way a 20 min question.
Lead Data Scientist Interview Questions
21,972 lead data scientist interview questions shared by candidates
Explain what random forests is
How many Big Mac does McDonald sell each year in US?
Python and SQL challenges via HackerRank Including: - How many edges does a fully connected (or complete) graph have? Multiple choice - What is the fundamental difference between k-means clustering and KNN? Multiple choice - Which command would be used to ensure any local tracked changes are also shared amongst remote repositories? Multiple choice - Given 2 fair 6-sided dice and a fair coin, what is the probability of rolling a combined score of 7 with the dice and having the coin show heads after tossing? Multiple choice - Given data matrix X of shape n x d and transformation matrix sigma of shape d x k, which matrix multiplications will produce a transformed data matrix Xdash of shape n x k? Multiple choice - The sigmoid function is defined. What does its value tend to as its input x moves towards negative infinity? Multiple choice - SQL challenge of 2 tables with example answer, typed answer in SQL language of choice required - You are playing a card game with three cards. Both sides of one card are black, both sides of another are white, and the remaining card has one black side and one white side. You pick a card at random and see it has a black side face-up. What is the probability that the other side of the card is white? Multiple choice - 'Descending Mount Trigonometry' question - code your own answer
You can look at the other interview reviews for the specific questions. Mine was very similar, although specific questions may differ.
Swap values to 2 variables without using 3rd.
Given the set a a b b a a c c b b of unknown length, write an algorithm that figures out which occurs most frequently and with the most continuous repetition.
What if you find that the job is not as challenging as you want it to be.
Could you explain how, in your mind, do the functions of Data Scientist and Machine Learning Engineer differ ?
How do you learn new knowledge/skills?
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