Traditional researches of pairwise influence quantification are focus on social network such as coauthor network.So they dont fully apply to current online social network.Furthermore

existing model which are proposed for online social network are simple

one-sided and lack of accuracy.So we propose a Bayes model which integrated all useful information online social network provides to quantify the pairwise influence between two users.Through analyzing and comparing the influential found by these models

we find that our model is more accurate and comprehensive than existing models.