个体及团体异构多方面评分行为建模

刘鲲鹏,赵宵飒,胡一睿,傅衍杰

Modeling the Effects of Individual and Group Heterogeneity on Multi-Aspect Rating Behavior

Kunpeng Liu,Xiaosa Zhao,Yirui Hu,Yanjie Fu

Table 3 The generative process of MTMF

1. Generate latent factors a. Draw ${{u}_{ki}}\tilde{\ }Exp(\alpha )$ b. Draw ${{e}_{kj}}\tilde{\ }Exp(\beta )$ c. Draw ${{c}_{kj}}\tilde{\ }Exp(\beta )$ 2. Generate variance a. Draw ${{\sigma }^{2}}\tilde{\ }Inv-Gamma(a,b)$ 3. Generate ratings a. Generate ${{g}_{ij}}\tilde{\ }N(u_{i}^{T}{{e}_{j}},{{\sigma }^{2}})$ b. Generate ${{h}_{ij}}\tilde{\ }N(u_{i}^{T}{{c}_{j}},{{\sigma }^{2}})$