  Social network has become one of the themes of government issues, mainly
dealing with the chaos. The use of web is steadily gaining ground in these
issues. However, most of the web documents are unstructured and lack of
semantic. In this paper we proposed an Information Retrieval driven method for
dealing with heterogeneity of features in the web. The proposed solution is to
compare some approaches have shown the capacity to extract social relation:
strength relations and relations based on online academic database.
