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. 2021 Mar 26;4:415. doi: 10.1038/s42003-021-01937-1

Fig. 4. Performance of STEM in 2086 videos.

Fig. 4

a Receiver operator characteristic (ROC) curves and area under the receiver operating characteristic curve (AUC) for spatial stream model (AUC = 0.76), temporal stream model (AUC = 0.77), and ensemble model STEM (AUC = 0.82). b Weighted average for combining the spatial stream and temporal stream models. The weight was obtained when the ensemble model achieved the highest accuracy. c The prediction outcomes of 2086 embryos obtained from STEM and embryologists. d The model’s ROC curve and the sensitivity/1-specificity points of the embryologists.