Ml Engineer Interview Questions

1,795 ml engineer interview questions shared by candidates

Explain the Bias-Variance Tradeoff. How does it impact model performance? What is overfitting, and how do you prevent it in a machine learning model? Can you describe the difference between supervised and unsupervised learning? Provide examples of each. What is the curse of dimensionality, and how does it affect machine learning models?
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ML Engineer

Interviewed at Digiquest Academy

5
Dec 31, 2023

Explain the Bias-Variance Tradeoff. How does it impact model performance? What is overfitting, and how do you prevent it in a machine learning model? Can you describe the difference between supervised and unsupervised learning? Provide examples of each. What is the curse of dimensionality, and how does it affect machine learning models?

Task description ---------------- The file task_data.csv contains an example data set that has been artificially generated. The set consists of 400 samples where for each sample there are 10 different sensor readings available. The samples have been divided into two classes where the class label is either 1 or -1. The class labels define to what particular class a particular sample belongs. Your task is to rank the sensors according to their importance/predictive power with respect to the class labels of the samples. Your solution should be a Python script or a Jupyter notebook file that generates a ranking of the sensors from the provided CSV file. The ranking should be in decreasing order where the first sensor is the most important one. Additionally, please include an analysis of your method and results, with possible topics including: * your process of thought, i.e., how did you come to your solution? * properties of the artificially generated data set * strengths of your method: why does it produce a reasonable result? * weaknesses of your method: when would the method produce inaccurate results? * scalability of your method with respect to number of features and/or samples * alternative methods and their respective strengths, weaknesses, scalability Hint: There are many reasonable solutions to our task. We are looking for good, insightful ones that are the least arbitrary. Please beware of the quality of the code as well.
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Senior ML Engineer

Interviewed at Smart Steel Technologies

3
Sep 5, 2021

Task description ---------------- The file task_data.csv contains an example data set that has been artificially generated. The set consists of 400 samples where for each sample there are 10 different sensor readings available. The samples have been divided into two classes where the class label is either 1 or -1. The class labels define to what particular class a particular sample belongs. Your task is to rank the sensors according to their importance/predictive power with respect to the class labels of the samples. Your solution should be a Python script or a Jupyter notebook file that generates a ranking of the sensors from the provided CSV file. The ranking should be in decreasing order where the first sensor is the most important one. Additionally, please include an analysis of your method and results, with possible topics including: * your process of thought, i.e., how did you come to your solution? * properties of the artificially generated data set * strengths of your method: why does it produce a reasonable result? * weaknesses of your method: when would the method produce inaccurate results? * scalability of your method with respect to number of features and/or samples * alternative methods and their respective strengths, weaknesses, scalability Hint: There are many reasonable solutions to our task. We are looking for good, insightful ones that are the least arbitrary. Please beware of the quality of the code as well.

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