Table 4.
Comparison of regression performance of M-RVR vs. MConcat, and SM-RVR vs. SMConcat
| Methods | MMSE |
ADAS-Cog |
||
|---|---|---|---|---|
| RMSE | CORR | RMSE | CORR | |
| MConcat | 2.17 | 0.52 | 5.04 | 0.57 |
| M-RVR | 2.14 | 0.54 | 4.69 | 0.64 |
| SMConcat | 2.07 | 0.75 | 4.72 | 0.75 |
| SM-RVR | 1.92 | 0.80 | 4.45 | 0.78 |
MMSE mini-mental state examination, ADAS-Cog Alzheimer’s disease assessment scale-cognitive subscale, RMSE root mean square error, CORR correlation coefficient, MConcat feature concatenation for supervised multimodal RVR, SMConcat feature concatenation for semi-supervised multimodal RVR