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 5 The generative process of Mix-MTMF

1. Generate latent factors Generate ${{u}_{i}}$, ${{e}_{j}}$, ${{c}_{j}}$ from MFRL 2. Generate distributions for each group a. Draw ${{\lambda }_{n}}$, $\sigma _{n}^{2}$ for each group b. Draw ${{f}_{n}}(x)\tilde{\ }N([u_{i}^{T},e_{j}^{T},c_{j}^{T}]\cdot {{\lambda }_{n}},\sigma _{n}^{2}$ 3. Generate overall rating b. Generate weight in the mixture model αn c. Generate ${{y}_{ij}}\tilde{\ }\sum\nolimits_{n=1}^{N}{{{\alpha }_{n}}N([u_{i}^{T},e_{j}^{T},c_{j}^{T}]\cdot {{\lambda }_{n}},\sigma _{n}^{2})}$