In one embodiment, social network analysis is performed on the communication content after hashing, and {HEAD ~ visualization} of {TAIL ~ the social network analysis} includes thread graphs and circular graphs 
In one embodiment , social network analysis is performed on the communication content after hashing , and { HEAD ~ visualization } of { TAIL ~ the social network analysis } includes thread graphs and circular graphs
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH