Towards Optimization of Boosting Models for Formation Lithology Identification

Algorithm 2

Gradient Tree Boosting algorithm, modified from [20, 21].

(1)	Given . The number of iterations: M
(2)	Initialize
(3)	For to M:(a)Compute (b)Fit base model , (c)Calculate to minimize the loss function (d)Update current model with previous model and the constrained ,
(4)	Calculate the final boosting model .