en

PCA

3 abbreviation

Terminological databases

Natural Sciences, Mathematics and Statistics

Geoinformaatika

ID 1144426 Last modified 05.11.2026
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Domain geoinformatics & cartography
  • faktoranalüüsi üks konkreetne, geograafias kõige sagedamini kasutatav meetod, mis on andmete ortogonaalne projektsioon vähemõõtmelisse tunnusruumi, säilitades maksimaalse võimaliku dispersiooni
peakomponentanalüüs
Usage examples
  • Peakomponentanalüüsil moodustatakse algsesse tunnusruumi uued tunnusteljed nii, et esimene telg on punktiparve maksimaalse hajuvuse sihis, teine esimesega risti ja punktiparve maksimaalse jääkhajuvuse sihis jne. Uued teljed moodustatakse olemasolevate kaalutud lineaarkombinatsioonidena ja neid nimetatakse peakomponentideks.
principal components analysis
Usage examples
  • A more complicated use of multiple wavebands, which can result in images that more clearly distinguish between a variety of environmental parameters, than could a single waveband, is that of principal components analysis and canonical analysis.
PCA abbreviation
Usage examples
  • When performing PCA, the first principal component of a set of p variables is the derived variable formed as a linear combination of the original variables that explains the most variance.

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