2 problems

Let $(\hat{F}_t)_{t\geq 0}$ be the infinitesimal gradient boosting trajectory, let $\beta\geq 0$ be the tree-randomization parameter, let $\mathcal{P}_d(F^*)$ denote the projection…

Let $\hat{F}^{\lambda}_{[t/\lambda]}$ be the stochastic gradient boosting process, let $(\hat{F}_t)_{t\geq 0}$ be its infinitesimal gradient boosting limit, let…