Data Scientist Interview Questions in Dublin, Ireland | Glassdoor

Data Scientist Interview Questions in Dublin, Ireland

"Every business collects data, and it's the job of the data scientist to analyze, interpret, and communicate that information in a way that will help drive company decisions. In an interview, expect to answer technical questions about your ability to perform quantitative tests as well as create clear visualizations of large, complex data sets. Come ready to discuss past projects you've worked on and how you communicate data findings clearly and concisely in order to help solve business-related problems."

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What can you tell me about the FD client base?

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What approach would you take if you had to build a system that would retrieve resumes from a corpus of various documents if you had limited time and resources.

How would you restore case information to a piece of text that had lost it.

What experience with modelling did I have

SoftDev : Python (I chose), You have an array of int of len n, sorted, filled with int from 0 to n, e.G. [0,1,2,4,5], you want to find what is the number such as it introduces the problem. Complexity of O(log n) in general required.

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SoftDev : Python (I chose), you have an array of string sorted but with empty strings (e.g. ["abc","","","","cef","","","dej,""] and you want to know if an other string is in this array. How to do it with a complexity of O(log n) in general case ? Then how to find how many times it appears in this array ?

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Screening was basic concepts questions. Coding interview were part live coding in a chat, others on a white board. Things like implement a sparse matrix, or questions from the coding interview book. Modelling interview was to go through a case study step by step and analyse a problem + model its solution. Statistics interview was more like a statistics course quiz, defining terms, solving statistical equations etc.

Data science : Explain Markov Chains to a 8 years old chilf

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Data science : What is a good/bad Data visualisation ?

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