juniorUnsupervised Learning
What is Unsupervised Learning?
Updated May 15, 2026
Short answer
Unsupervised learning is a type of machine learning where models learn patterns from unlabeled data.
Deep explanation
It focuses on discovering hidden structures in data without predefined labels. Common techniques include clustering, dimensionality reduction, and density estimation.
Real-world example
Customer segmentation in marketing without predefined customer categories.
Common mistakes
- Assuming unsupervised learning gives correct labels automatically.
Follow-up questions
- What are main types of unsupervised learning?
- How is it different from supervised learning?