Generating an implied object graph based on user behavior

摘要

An online system generates implied links between objects distributed by the online system based on a plurality of users' behaviors with respect to the objects. For a behavior of a user with respect to an object that satisfies a link criterion, the online system identifies a connection between the user and the object. Local object graphs are generated to represent the relationships between the objects connected to each user, and the local object graphs are merged into a global object graph. An adjacency matrix is extracted from the global object graph as a representation of the strength of relationships between the objects distributed by the online system. The online system may then apply graph analysis techniques to the adjacency matrix, thereby analyzing the relationships between the objects without relying upon explicit links between the objects.

主权项

1. A method for generating an implied object graph, the method comprising:
identifying a plurality of user behaviors by an online system, each user behavior comprising an interaction with an object of a plurality of objects and performed by a user of a plurality of users of the online system; generating a plurality of local object graphs, each local object graph associated with a user of the plurality of users and comprising a subset of the objects with which the user interacted and links between objects of the subset; determining a weight for each of the links in the local object graphs, the weight determined based on the corresponding user behavior; merging the plurality of local object graphs to generate a global object graph, the global object graph comprising the plurality of objects and links between the plurality of objects; determining a weight for each of the links in the global object graph based on the weights of the merged local object graphs; and storing the links and the corresponding weights from the global object graph in an adjacency matrix.