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data_mining:gradient_boosting [2016/02/01 22:59] – phreazer | data_mining:gradient_boosting [2016/02/01 23:04] – phreazer | ||
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* Optimiert Accuracy (bzgl. Risikofunktion). | * Optimiert Accuracy (bzgl. Risikofunktion). | ||
+ | Schätzproblem | ||
+ | |||
+ | Schätzung von $f^* := \argmin_{f(.)} E[p(Y, | ||
+ | |||
+ | Beispielhafte Loss-Funktion: |