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| Lasso-regresszió× | Főkomponens-analízis× | |
|---|---|---|
| Tudományterület | Gépi tanulás | Gépi tanulás |
| Módszercsalád | Machine learning | Machine learning |
| Keletkezés éve≠ | 1996 | 2002 |
| Megalkotó≠ | Tibshirani, R. | Jolliffe, I.T. (textbook); Pearson & Hotelling (origins) |
| Típus≠ | Regularized linear regression (L1 penalty) | Unsupervised dimensionality reduction |
| Alapmű≠ | Tibshirani, R. (1996). Regression Shrinkage and Selection via the Lasso. Journal of the Royal Statistical Society: Series B, 58(1), 267–288. DOI ↗ | Jolliffe, I.T. (2002). Principal Component Analysis (2nd ed.). Springer. DOI ↗ |
| Alternatív nevek | LASSO Regresyonu, lasso, L1-regularized regression, L1 regularization | Temel Bileşenler Analizi (PCA), PCA, principal components analysis, Karhunen-Loève transform |
| Kapcsolódó≠ | 4 | 3 |
| Összefoglaló≠ | Lasso regression, introduced by Robert Tibshirani in 1996, is a linear regression method that adds an L1 penalty to the loss so that it shrinks coefficients and performs variable selection at the same time, producing a sparse model. By driving some coefficients exactly to zero it keeps only the predictors that matter. | 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. |
| ScholarGateAdatkészlet ↗ |
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