Interview Q&A / Machine Learning

INTERVIEW Q&A · 55 QUESTIONS

Machine Learning interview questions

Supervised vs unsupervised learning, overfitting, metrics and the classic models, explained simply.

  1. What is the difference between Euclidean and Manhattan distance, and which should KNN use?

    Euclidean is the straight-line distance, sqrt of the sum of squared differences. Manhattan is the sum of absolute differences, like walking along city blocks. Euclidean is the default; Manhattan can be better in high dimensions or with many outliers.

    BeginnerQuick answer1 min read