 ##  [Dimensionality Reduction](/dimensionality-reduction) 

  ##  [Dimensionality Reduction](https://mathlogic.quantumdictionary.io/dimensionality-reduction-0) 

  

 [![Mathematics & Logic Dictionary](/sites/default/files/styles/large/public/2026-01/Mathematics%20%26%20Logic.png.webp?itok=UhtTRPnp)](/topic-specific-dictionaries/natural-formal-sciences/mathematics-logic)

- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 







 

 

 

 



 

 

 

 

Definition

Techniques that reduce the number of variables under consideration by finding lower-dimensional representations (projections or encodings) that preserve essential structure, variance, or predictive information from high-dimensional data.