TY - Journal of Shandong University(Engineering Science) A1 - Delei CHEN, Cheng WANG, Jianwei CHEN, Yiyin WU T1 - GRU-based collaborative filtering recommendation algorithm with active learning Y1 - 2020-02-20 JF - Journal of Shandong University(Engineering Science) JO - Journal of Shandong University(Engineering Science) SP - 21 EP - 27 VL - 50 IS - 1 UR - http://gxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1672-3961.0.2019.411 ER -