Enhance e-learning system performance with a cloud and crowd-oriented approach. - Chun-Hsiung Tseng; Ching-Lien Huang; Yung-Hui Chen; Chu-Chun Chuang; Han-Ci Syu; Yan-Ru Jiang; Fang-Chi Tsai; Pin-Yu Su; Jun-Yan Chen (Int. J. High Perform. Comput. Netw., 2018)