Question: Derive the gradient-tree-boosting procedure using Newton boosting for a twice-differentiable loss functional l ???? Fx, y . Assume that we use the L2 norm

Derive the gradient-tree-boosting procedure using Newton boosting for a twice-differentiable loss functional l

????

F¹xº, y



. Assume that we use the L2 norm term and the penalty per node in Eq. (9.2) as two extra regularization terms together with the loss functional.

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