基于沉积微相特征挖掘的随机森林岩石相测井识别方法——以新场地区须家河组二段致密砂岩为例

何小龙, 张兵, 杨凯, 何一帆, 李琢

A log-based lithofacies identification method based on random forest and sedimentary microfacies characteristics:A case study of tight sandstones in the second member of the Xujiahe Formation in the Xinchang area

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图6 网格搜索F1分数分布及超参数优选

Fig.6 Distribution of F1 scores from grid search and hyperparameter optimization