Extreme Multi-label Learning for Semantic Matching in Product Search. - Wei-Cheng Chang; Daniel L. Jiang; Hsiang-Fu Yu; Choon-Hui Teo; Jiong Zhang; Kai Zhong; Kedarnath Kolluri; Qie Hu; Nikhil Shandilya; Vyacheslav Ievgrafov; Japinder Singh; Inderjit S. Dhillon (KDD, 2021)