HarpGBDT: Optimizing Gradient Boosting Decision Tree for Parallel Efficiency. - Bo Peng 011; Judy Qiu; Langshi Chen; Jiayu Li; Miao Jiang; Selahattin Akkas; Egor Smirnov; Ruslan Israfilov; Sergey Khekhnev; Andrey Nikolaev (CLUSTER, 2019)