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Table 1 Numerical features used in the model

From: Acceptance Prediction for Answers on Online Health-care Community

Patient’s informationPatient’s ageinteger, 0-98
 Patient’s gendercategorical: male/female
Doctor’s informationDoctor’s titlecategorical: chief physician/
  attending physician/assistant physician
 Doctor’s reputationcategorical: level1/level2/level3
 Number of patients the doctor helpedinteger, 0-406342
 Number of gratitude the doctor receivedinteger, 0-13883
Answering informationNumber of Chinese characters in the answerinteger, 12-734
 Time difference between question and answercontinuous (in seconds), 0-8005.37
 Answer’s order under the corresponding questioninteger, 1-25