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| Regressió Logística× | Anàlisi de Components Principals× | |
|---|---|---|
| Camp≠ | Estadística per a la recerca | Aprenentatge automàtic |
| Família≠ | Process / pipeline | Machine learning |
| Any d'origen≠ | 1958 | 2002 |
| Autor original≠ | David Roxbee Cox | Jolliffe, I.T. (textbook); Pearson & Hotelling (origins) |
| Tipus≠ | Method | Unsupervised dimensionality reduction |
| Font seminal≠ | Cox, D. R. (1958). The regression analysis of binary sequences. Journal of the Royal Statistical Society, Series B, 20(2), 215–242. DOI ↗ | Jolliffe, I.T. (2002). Principal Component Analysis (2nd ed.). Springer. DOI ↗ |
| Àlies≠ | logit model, binomial logistic regression, LR | Temel Bileşenler Analizi (PCA), PCA, principal components analysis, Karhunen-Loève transform |
| Relacionats | 3 | 3 |
| Resum≠ | Logistic regression is a statistical method for modeling the probability of a binary outcome (disease present/absent, success/failure) as a function of continuous and categorical predictors. Developed by David Roxbee Cox (1958), it solves the problem of predicting categorical outcomes by applying a logistic transformation to constrain predictions to the [0,1] probability interval, enabling accurate risk stratification, diagnostic prediction, and causal inference in epidemiology, medicine, and social science. | Principal Component Analysis (PCA) is an unsupervised dimensionality-reduction method — given its modern textbook treatment by Ian Jolliffe (2002) — that compresses high-dimensional data into fewer dimensions while preserving the maximum possible variance. It re-expresses correlated variables as a small set of uncorrelated principal components ordered by how much of the data's variation each one captures. |
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