External validation of the tumor control and toxicity models. Performance of the model by the receiver operating curve analysis for predicting (A) NLFy1, (B) CP2+, and (C) lymphopenia after radiotherapy. The bar plots show the model variables ranked by importance. All features are measured before treatment. PVT, GTV, and V10 are the portal vein thrombosis, gross tumor volume, and 10 Gy dosimetric index, respectively. AFP0, alpha-fetoprotein; ALB0, albumin; AUC, area under the curve; BIL0, bilirubin; CP, Child-Pugh; MLD, mean liver dose; MLP, multilayer perceptron; NLFy1, 1-year nonlocal failure; RIL, radiation-induced lymphopenia.