“…Besides the data mining task of classification, researchers have also examined relevant problems of detecting communities over social and information networks 6,7 . Furthermore, researchers have also examined other data mining tasks including clustering of social media data 27,30 , mining and analysis of co-authorship networks 17,20 , and visualization of social networks 9,16 . This paper, on the other hand, focuses on a different but also important aspect-namely, pattern mining on social networks.…”