融入用户风险偏好的三支协同过滤推荐模型
黄树添, 胡诗琳, 卜祥智, 李华雄, 刘久兵

Three⁃way collaborative filtering recommendation model integrating user risk preferences
Shutian Huang, Shilin Hu, Xiangzhi Bu, Huaxiong Li, Jiubing Liu
图1 L?A拟合法下的用户?项目效用函数
Fig.1 L?A simulation method for User?Item utility function