IBM Research Data Scientist Interview Questions and Answers

Python test to check basic understanding of algo and classs

Q1. Discussion around project and technical round on ML
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Q1. Basic culture check question and salary discussion expectation.
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OOPS concept and Dynamic Programming coding challenges

It was difficult and was on hackerrank

Q1. How to find a largest number in a list without using inbuilt function
Ans. 
Iterate through the list and compare each element to find the largest number.
• Iterate through the list using a loop

• Compare each element with a variable storing the current largest number

• Update the variable if a larger number is found
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Q1. Basic ML questions based on your project, python basic questions
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Basic python questions on pandas,numpy, and basic SQL questions on windows function like lag

Q1. Machine Learning algorithms
Ans. 
Machine Learning algorithms are used to train models on data to make predictions or decisions without being explicitly programmed.
• Machine Learning algorithms can be categorized into supervised, unsupervised, and reinforcement learning.

• Examples of supervised learning algorithms include linear regression, decision trees, and support vector machines.

• Examples of unsupervised learning algorithms include k-means clustering, ...read more
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Q2. Overfitting and underfitting
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Q3. Questions related to the project
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Q1. Questions on project, how much time required for training model
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Q2. Version control, Flask/ Django, Cloud service experience
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Q1. General ML questions
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Q2. General dl. Questions
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Test+2 interviews(technical and statistics)

Basic guestimates and case studies