Classification model training method and device, user classification method and device and electronic equipment

The invention discloses a classification model training method and device, a user classification method and device and electronic equipment, and the method comprises the steps: obtaining at least two initial models, and obtaining a plurality of training sets based on a training sample; when the classification models are trained, for each initial model, training the initial model by using the positive and negative training samples in each training set to obtain a plurality of classification models corresponding to the initial model and training parameters of each classification model; determining a target initial model based on the training parameters of the classification model corresponding to each initial model; obtaining a verification set corresponding to each training set; for each classification model corresponding to the target initial model, based on a verification set corresponding to a training set for training the classification model, verifying the classification model to obtain a verification par