What is intrinsic dimensionality?
Updated May 15, 2026
Short answer
The true underlying dimension of data structure.
Deep explanation
Although data may exist in high-dimensional space, it often lies on a lower-dimensional manifold.
Real-world example
Human motion captured by sensors.
Common mistakes
- Confusing observed and intrinsic dimensions.
Follow-up questions
- What is manifold learning?
- Why is it useful?