Default prediction method and device based on machine learning algorithm, equipment and medium

The embodiment of the invention relates to the field of artificial intelligence, and discloses a default prediction method and device based on a machine learning algorithm, equipment and a medium, and the method comprises the steps: obtaining the public opinion information and operation data information of a debt subject; performing structured processing on the public opinion information and the operation data information to obtain structured data; analyzing the structured data to obtain influence probability values of the public opinion information and the operation data information; clustering the public opinion information and the operation data information to obtain categories corresponding to the public opinion information and the operation data information; and inputting the influence probability value and the clustered public opinion information and operation data information into a pre-trained default prediction model and an improved KMV model to obtain a default probability value of the debt subject,