Mathematical Problems in Engineering

Research Article

COVID-19 Propagation Prediction Model Using Improved Grey Wolf Optimization Algorithms in Combination with XGBoost and Bagging-Integrated Learning

Table 1

Web search keyword phrase database.
CategoryWeb search keywords
Common wordsNew Coronavirus (X1), New Coronary Pneumonia (X2), Respiratory diseases (X3), COVID-19 (X4)
PreventionN95 mask (X5), medical surgical mask (X6), nucleic acid detection (X7), epidemic prevention and control (X8), hand washing (X9), seven-step hand washing technique (X10), hand sanitizer (X11), hand sanitizer (X12), disinfection (X13), 84 disinfectant (X14), disinfectant brand (X15), chlorine dioxide (X16), thermometer (X17), forehead temperature gun (X18), infrared thermometer (X19)
SymptomsFever (X20), malaise (X21), respiratory infection (X22), cold (X23), headache (X24), diarrhoea (X25), virus mutation (X26), asymptomatic infected person (X27), aerosol transmission (X28), contact transmission (X29), incubation period (X30)
TreatmentFever clinic (X31), cold medicine (X32), fever-reducing medicine (X33), new crown vaccine (X34), ventilator (X35)