Table 3 Matrix factorization models ((3) and (4)) used in numerical experiments
Model name | \({R}\) | \(W_{n, t} : (n, t) \in \Omega\) | \(\max z_n\) (years) |
|---|---|---|---|
Matrix Factorization (MF) | \({{D}}\) | 1 | – |
Convolutional MF (CMF) | \({{K}}{{D}}\) | 1 | – |
Shifted CMF (SCMF) | \({{K}}{{D}}\) | 1 | 3 |
Weighted CMF (WCMF) | \({{K}}{{D}}\) | \({\widehat{p}}(s \mid \epsilon ) \, / \, {\widehat{p}}((n, t) \in \Omega )\) | – |
Shifted WCMF (SWCMF) | \({{K}}{{D}}\) | \({\widehat{p}}(s \mid \epsilon ) \, / \, {\widehat{p}}((n, t) \in \Omega )\) | 3 |