Response versus gradient boosting trees, GLMs and neural networks under Tweedie loss and log-link
Response versus gradient boosting trees, GLMs and neural networks under Tweedie loss and log-link
Thanks to its outstanding performances, boosting has rapidly gained wide acceptance among actuaries. To speed up calculations, boosting is often applied to gradients of the loss function, not to responses (hence the name gradient boosting). When the model is trained by minimizing Poisson deviance, this amounts to apply the least-squares …