Table 2 Hyperparameters tunned for machine learning models.

From: An intelligent life prediction approach employing machine learning models for the power transformers

Model

Hyperparameters Tuned

Values Tested

Selection Criteria

Linear Regression

None

N/A

Minimize MSE

Polynomial Regression

Degree Fixed

2

Minimize MSE

Random Forest Regressor

Number of Trees, Maximum Depth

Trees: 100; Depth: 5, 10, None

Maximize R2

Logistic Regression

Regularization Strength (C)

0.1, 1, 10

Maximize Accuracy

SVM (RBF Kernel)

Regularization (C),

Kernel Coefficient

(gamma)

C: 1, 10, 1000; gamma: 0.01, 0.1, ‘Scale’

Maximize Accuracy

Random Forest Classifier

Number of Trees, Maximum Depth

Trees: 100; Depth: 5, 10, None

Maximize Accuracy