Belkacem Chikhaoui Mauricio Chiazzaro Shengrui Wang Discovering and tracking influencer-influencee relationships between online communities. 1-9 2015 DSAA https://doi.org/10.1109/DSAA.2015.7344846 conf/dsaa/2015 db/conf/dsaa/dsaa2015.html#ChikhaouiCW15