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| Criteri d'Informació d'Akaike (AIC)× | R quadrat millorat (R²_adj)× | |
|---|---|---|
| Camp | Avaluació de models | Avaluació de models |
| Família | MCDM | MCDM |
| Any d'origen≠ | 1974 | 1961 |
| Autor original≠ | Hirotugu Akaike | Henri Theil |
| Tipus≠ | Model selection metric | Penalized goodness-of-fit metric |
| Font seminal≠ | Akaike, H. (1974). A new look at the statistical model identification. IEEE Transactions on Automatic Control, 19(6), 716-723. DOI ↗ | Theil, H. (1961). Economic Forecasts and Policy. Amsterdam: North-Holland Publishing Company. link ↗ |
| Àlies≠ | AIC | Adjusted R², R²_adj |
| Relacionats≠ | 4 | 5 |
| Resum≠ | The Akaike Information Criterion is an information-theoretic measure for model selection that balances goodness of fit against model complexity. Introduced by Hirotugu Akaike in 1974, AIC estimates the relative quality of models for a given dataset, penalizing additional parameters to prevent overfitting. | Adjusted R² is a corrected version of the coefficient of determination that accounts for the number of predictors in a regression model. Introduced by Henri Theil in 1961, it addresses the fundamental limitation of standard R²: the tendency to increase whenever any predictor is added, regardless of whether that predictor contributes meaningfully to explaining the target variable. |
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