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Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.

Kvadratická diskriminační analýza (QDA)×Lineární diskriminační analýza (LDA)×Naive Bayes×
OborStrojové učeníStrojové učeníStrojové učení
RodinaLatent structureLatent structureMachine learning
Rok vzniku193919361997
TvůrceClassical Gaussian discriminant analysis (Fisher / Welch lineage)Fisher, R. A.Mitchell, T. M. (textbook treatment)
TypGenerative Gaussian classifierSupervised dimensionality reduction and linear classifierProbabilistic classifier (Bayes' theorem with conditional independence)
Původní zdrojHastie, T., Tibshirani, R., & Friedman, J. (2009). The Elements of Statistical Learning (2nd ed.). Springer. ISBN: 978-0-387-84857-0Fisher, R. A. (1936). The use of multiple measurements in taxonomic problems. Annals of Eugenics, 7(2), 179–188. DOI ↗Mitchell, T. M. (1997). Machine Learning. McGraw-Hill. ISBN: 978-0070428072
Další názvyQDA, quadratic classifier, kuadratik diskriminant analiziLDA, Fisher's discriminant analysis, Fisher linear discriminant, normal discriminant analysisNaive Bayes Sınıflandırıcı, naive bayes classifier, simple Bayes, Gaussian Naive Bayes
Příbuzné244
ShrnutíQuadratic discriminant analysis is a generative classifier that models each class with its own multivariate Gaussian distribution, allowing each class a separate covariance matrix. Unlike linear discriminant analysis, which assumes a shared covariance and yields linear boundaries, QDA's per-class covariances produce curved (quadratic) decision boundaries, letting it capture differences in the spread and orientation of the classes.Linear Discriminant Analysis is a supervised method for dimensionality reduction and classification, introduced by Ronald A. Fisher in 1936, that finds linear combinations of features which maximally separate predefined classes while preserving as much class-discriminatory information as possible. It simultaneously serves as a feature-projection technique and a probabilistic classifier, making it one of the foundational methods in pattern recognition and statistical learning.Naive Bayes is a fast probabilistic classifier that applies Bayes' theorem while assuming that the features are conditionally independent given the class — a method given its standard machine-learning treatment in Tom Mitchell's 1997 textbook Machine Learning. Despite this simplifying ('naive') assumption, it is quick to train and often surprisingly accurate.
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ScholarGatePorovnat metody: Quadratic Discriminant Analysis · Linear Discriminant Analysis · Naive Bayes. Získáno 2026-06-19 z https://scholargate.app/cs/compare