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

表10 固定

λ_{R N}

时推荐覆盖率的比较

Table 10 Recommendation generality with fixed

λ_{R N}

$(λ_{R N}, λ_{N P})$	$λ_{B R} = λ_{B N} = 0.35$		$λ_{B R} = λ_{B N} = 0.25$		$λ_{B R} = λ_{B N} = 0.15$
$(λ_{R N}, λ_{N P})$	M_CF	P_CF	M_CF	P_CF	M_CF	P_CF
$(0.8,1.2)$	0.729	0.667	0.421	0.419	0.136	0.233
$(0.8,1.0)$	0.752	0.712	0.426	0.437	0.138	0.238
$(0.8,0.8)$	0.813	0.807	0.443	0.475	0.142	0.247
$(0.8,0.6)$	—	—	0.502	0.572	0.150	0.272
$(0.8,0.4)$	—	—	0.847	0.900	0.198	0.362