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