Semi-supervised Active Learning for Semi-supervised Models: Exploit
       Adversarial Examples with Graph-based Virtual Labels
       Jiannan Guo1,2 * Haochen Shi3 Yangyang Kang2 Kun Kuang1 Siliang Tang1
           Zhuoren Jiang1 Changlong Sun1,2 Fei Wu1 Yueting Zhuang1
           1
            Zhejiang University 2 Alibaba Group 3 Universite de Montreal
         {jiannan, kunkuang, siliang, jiangzhuoren, wufei, yzhuang}@zju.edu.cn
   yangyang.kangyy@alibaba-inc.com, changlong.scl@taobao.co ...