supported by 973 Program of China(Grant No.2013CB329601, 2013CB329602,2013CB329604);NSFC of China(Grant No.60933005,91124002);863 Program of China(Grant No.2012AA01A401, 2012AA01A402);National Key Technology RD Program of China(Grant No.2012BAH38B04, 2012BAH38B06)
With the development of online social networks,a special group of online users named organized posters(or Internet water army,Internet paid posters in some literatures) have fl ooded the social network communities. Th...