Detection of COVID-19 Using Protein Sequence Data via Machine Learning Classification Approach

Algorithm 1

The algorithm of XGBoost.

Input: Dataset, the number of trees (K), the learning rate (η), the number of terminal nodes (T)

Initialize

fordo

Calculate

Calculate

Determine the structure by choosing split node with maximized :

Determine the leaf weights

Determine the decision tree

 Add trees

end

Output: Prediction value .