Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| Kvadratická diskriminační analýza (QDA)× | Lineární diskriminační analýza (LDA)× | Naive Bayes× | |
|---|---|---|---|
| Obor | Strojové učení | Strojové učení | Strojové učení |
| Rodina≠ | Latent structure | Latent structure | Machine learning |
| Rok vzniku≠ | 1939 | 1936 | 1997 |
| Tvůrce≠ | Classical Gaussian discriminant analysis (Fisher / Welch lineage) | Fisher, R. A. | Mitchell, T. M. (textbook treatment) |
| Typ≠ | Generative Gaussian classifier | Supervised dimensionality reduction and linear classifier | Probabilistic classifier (Bayes' theorem with conditional independence) |
| Původní zdroj≠ | Hastie, T., Tibshirani, R., & Friedman, J. (2009). The Elements of Statistical Learning (2nd ed.). Springer. ISBN: 978-0-387-84857-0 | Fisher, 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 názvy≠ | QDA, quadratic classifier, kuadratik diskriminant analizi | LDA, Fisher's discriminant analysis, Fisher linear discriminant, normal discriminant analysis | Naive Bayes Sınıflandırıcı, naive bayes classifier, simple Bayes, Gaussian Naive Bayes |
| Příbuzné≠ | 2 | 4 | 4 |
| Shrnutí≠ | Quadratic 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. |
| ScholarGateDatová sada ↗ |
|
|
|