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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: J Pediatr Urol. 2018 Oct 31;15(1):75.e1–75.e7. doi: 10.1016/j.jpurol.2018.10.020

Table 3.

Classification performance estimated from 100 runs of 10-fold cross-validation (Mean±std).

CNN HOG Geometrical HOG
+
Geometrical
CNN
+
Geometrical
CNN
+
HOG
CNN
+
HOG
+
Geometrical
Accuracy
Left 0.85±1.8e-2 ^#*0.77±2.3e-2 ^*0.78±1.5e-2 ^*0.79±2.7e-2 0.87±1.5e-2 *0.84±1.4e-2 0.84±1.6e-2
Right *0.75±2.0e-2 *0.74±2.5e-2 ^#*0.67±1.7e-2 *0.74±2.4e-2 *0.74±2.1e-2 0.81±1.8e-2 0.81±1.8e-2
Bilateral *0.85±1.2e-2 ^#*0.78±2.4e-2 ^#*0.76±1.8e-2 ^*0.79±2.3e-2 *0.85±1.4e-2 *0.86±2.1e-2 0.87±2.1e-2
AUC
Left *0.88±0.8e-2 ^#*0.84±1.5e-2 ^#*0.80±0.9e-2 ^*0.86±1.5e-2 *0.88±0.9e-2 *0.92±0.8e-2 0.92±0.7e-2
Right *0.83±1.3e-2 *0.83±1.6e-2 ^#*0.67±1.7e-2 *0.83±1.6e-2 *0.83±1.2e-2 0.88±1.0e-2 0.88±1.1e-2
Bilateral *0.89±0.8e-2 ^#*0.87±1.6e-2 ^#*0.82±1.3e-2 ^*0.87±1.5e-2 *0.89±0.8e-2 *0.92±0.7e-2 0.92±0.7e-2
Specificity
Left *0.80±2.6e-2 ^*0.70±3.9e-2 ^#*0.63±2.9e-2 ^*0.71±4.3e-2 *0.82±2.6e-2 *0.83±1.9e-2 0.84±2.2e-2
Right *0.66±2.6e-2 ^*0.63±4.3e-2 ^#*0.45±2.3e-2 ^*0.62±4.2e-2 *0.65±2.7e-2 0.74±2.6e-2 0.74±2.6e-2
Bilateral *0.83±1.4e-2 ^#*0.78±3.3e-2 ^#*0.62±3.2e-2 ^*0.79±3.3e-2 *0.82±1.8e-2 0.88±2.6e-2 0.88±2.6e-2
Sensitivity
Left 0.89±2.2e-2 ^#*0.82±2.6e-2 0.90±1.4e-2 ^0.84±2.7e-2 0.91±1.4e-2 *0.84±1.7e-2 0.85±1.8e-2
Right *0.83±2.8e-2 *0.84±2.5e-2 0.88±2.1e-2 *0.85±2.4e-2 *0.83±3.1e-2 0.88±2.0e-2 0.88±2.1e-2
Bilateral 0.86±1.9e-2 ^#*0.78±2.9e-2 0.86±1.8e-2 ^*0.79±2.9e-2 0.87±1.9e-2 *0.85±2.6e-2 0.86±2.6e-2
*

CNN + HOG + Geometrical better than others; Wilcoxon signed-rank test, p<0.001

^

CNN better than HOG, Geometrical, and HOG + Geometrical; Wilcoxon signed-rank test, p<0.001

#

HOG + Geometrical better than HOG or Geometrical alone; Wilcoxon signed-rank test, p<0.001