Machine Learning Method for TOC Prediction: Taking Wufeng and Longmaxi Shales in the Sichuan Basin, Southwest China as an Example

Table 3

Evaluation table of the TOC prediction results of two machine learning methods.

Evaluation index	Random forest	Bayesian linear regression
MAE	0.3338	0.3241
MRE	0.2161	0.2064
	0.8529	0.8684
Maximum relative error	1.4195	1.4181
Minimum relative error	0.0013	0.0006