Three-level Compact Caching for Search Engines Based on Solid State Drives. - Rui Zhang; Pengyu Sun; Jiancong Tong; Ruirui Zang; Heng Qian; Yu Pan; Rebecca J. Stones; Gang Wang 001; Xiaoguang Liu 001; Yusen Li (HPCC/DSS/SmartCity/DependSys, 2021)