Data mining method and system based on intranet log behavior graph

The invention relates to a data mining method and system based on an intranet log behavior graph, and relates to the technical field of data mining. The method comprises the following steps: acquiring and analyzing intranet log information, and extracting a subject, an object and behaviors of the subject to the object in the intranet log information; constructing a behavior graph based on the subject, the object and the behavior of the subject to the object; wherein nodes of the behavior graph represent a subject or an object, connecting edges represent behaviors of the subject to the object, and the direction of the connecting edges is that the subject points to the object; and on the basis of the behavior graph, subject behaviors, relationships among different subjects, relationships among different objects, relationships among behaviors or relationships among intranet logs are mined. According to the method, the intranet behaviors are uniformly and effectively described through the graph, and the associati