The invention relates to a method for performing iterative modeling on unsaturated information. The method comprises the following steps: A, training an unsaturated data sample to obtain a probabilityvalue of the data sample; B, setting a first confidence coefficient
list, and layering the data samples according to the relationship between the probability values and confidence coefficients in thelist to obtain a final confidence coefficient upper bound and a final confidence coefficient lower bound; C, layering again to obtain a training
data set; D, predicting the probability values of datasamples except for the training
data set, layering the data samples except for the training
data set according to the upper / lower bound of the final confidence, and combining a layering result with positive samples and negative samples in the training data set to form a new training data set; and E, iterating the steps B to D until the data samples except for the training data set cannot be layered again to obtain a finally formed new training data set. According to the invention, a
universal model is realized, the unsaturated information applied in various occasions can be classified, and the accuracy and the efficiency are relatively high.