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 .

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