Yuan Yao 0001 Hanghang Tong Feng Xu 0007 Jian Lu 0001 Predicting long-term impact of CQA posts: a comprehensive viewpoint. 1496-1505 2014 KDD https://doi.org/10.1145/2623330.2623649 conf/kdd/2014 db/conf/kdd/kdd2014.html#YaoTXL14