They asked me to walk through one of my recent end-to-end data science projects and explain how I approached the problem, what techniques I used and the impact it created.
Data Scientist Interview Questions
33,502 data scientist interview questions shared by candidates
Rescehdules only, not interview, however in between these Expertite and Careernet were telling it is good company.
In a file containing an integer on each line, explain how to determine the median and estimate the time complexity.
Statistics, Machine Learning, Data Engineering
Am i okay with creating apis
Given a table that each day shows who was active in the system and a table that tracks ongoing user status, write a procedure that will take each day's active table and pass it into the ongoing daily tracking table. Possible states are: * user stayed (yesterday yes, today yes) * user churned (yesterday yes, today no) * user revived (yesterday no, today yes) * user new (yesterday null, today yes) Note: you'll want to spot and account for the undefined state.
Given a table containing date, post_id, relationship (e.g. Friend, Group, Page), interaction (like, share etc.) and a table containing poster id and post id, calculate: how many likes were made on friend posts yesterday
Basic SQL (don't remember specif question)
Our teams have developed an algorithm to detect spams and classify them at the bottom of the newsfeed. How to check if it works? If it's profitable?
How to analyze the network on Facebook,
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