juniorUnsupervised Learning
What is clustering in unsupervised learning?
Updated May 15, 2026
Short answer
Clustering groups similar data points together based on feature similarity.
Deep explanation
It identifies inherent groupings in data using distance metrics like Euclidean or cosine similarity.
Real-world example
Grouping users with similar browsing behavior.
Common mistakes
- Choosing number of clusters arbitrarily.
Follow-up questions
- What are clustering algorithms?
- What is similarity measure?