Research Article

A New Classification Method in Ultrasound Images of Benign and Malignant Thyroid Nodules Based on Transfer Learning and Deep Convolutional Neural Network

Table 4

Comparison of evaluation index obtained by different methods.

MethodF1 scorePrecisionRecallAccuracy

Twice transfer learning based on LeNet50.97480.96780.96710.9649
Once transfer learning based on LeNet50.95840.97880.96850.9635
Twice transfer learning based on VGG160.96570.97180.97810.9742
Once transfer learning based on VGG160.96040.95480.96850.9692
Twice transfer learning based on inception V3 (our method)0.98740.98420.96840.9885
Once transfer learning based on inception V3 (our method)0.96740.97470.97740.9745