Optimal bridge relationship recommendation method and system

The invention relates to the advertisement delivery field, in particular to an optimal bridge relationship recommendation method, comprising the following steps of: constituting an intimacy data set of each ordinary user; choosing a test set from common users and carrying out flow test on the test set, so that the formal weight coefficient is obtained. The following operations are performed for the ordinary user: determining, among the interested users concerned by the current ordinary user, the interested users having a bridge relationship with the current advertisement blog post as the bridge users concerned by the current ordinary user with respect to the current advertisement blog post; acquiring an intimacy degree of a current ordinary user and a corresponding bridge user in a currentpredetermined time period from the intimacy degree data set; calculating a formal weight value of each bridge user; presenting the bridge relationship of the bridge users with the largest formal weights for the current adver