# OnCo record pca (term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/pca/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "pca" ;
  schema:name "Principal component analysis (PCA) as a feature compressor"@en ;
  schema:alternateName "principal component analysis"@en, "PCA"@en, "principal components"@en, "PCA-256"@en, "PCA reduction"@en, "separate-block PCA"@en, "block-wise PCA"@en, "dimensionality reduction"@en ;
  schema:description "PCA rotates the data onto the directions of greatest variance and keeps the top few, compressing twenty thousand genes into a few hundred numbers before a model sees them."@en ;
  schema:url <https://onco.cc/terms/pca/> ;
  schema:dateModified "2026-09-24"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Principal_component_analysis> ;
  schema:citation <https://en.wikipedia.org/wiki/Principal_component_analysis> ;
  onco:tag "cansim-terms" ;
  onco:related <https://onco.cc/terms/cancer-ai-vocabulary/> ;
  onco:terms <https://onco.cc/terms/ridge-regression/>, <https://onco.cc/terms/embedding/>, <https://onco.cc/terms/data-leakage/>, <https://onco.cc/terms/ood-detection/> .