AFP and cancer: The medical history and laboratory test results of individuals with malignant tumors were searched from the medical record system and encoded by the auto encoder to obtain clinical data, including age, gender, cirrhosis-related history, other cancers, tumor marker(AFP, CEA,CA-125,CA19-9, PSA, Ferritin), and liver function (albumin, total bilirubin, prolonged prothrombin time, hepatic encephalopathy, ascites).