4.6 Article

Breast Cancer Histopathology Image Classification Using an Ensemble of Deep Learning Models

期刊

SENSORS
卷 20, 期 16, 页码 -

出版社

MDPI
DOI: 10.3390/s20164373

关键词

deep learning; histopathology; breast cancer; image classification; ensemble models

资金

  1. Basque Country project MIFLUDAN
  2. eVida Research Group, University of Deusto, Bilbao, Spain [IT 905-16]

向作者/读者索取更多资源

Breast cancer is one of the major public health issues and is considered a leading cause of cancer-related deaths among women worldwide. Its early diagnosis can effectively help in increasing the chances of survival rate. To this end, biopsy is usually followed as a gold standard approach in which tissues are collected for microscopic analysis. However, the histopathological analysis of breast cancer is non-trivial, labor-intensive, and may lead to a high degree of disagreement among pathologists. Therefore, an automatic diagnostic system could assist pathologists to improve the effectiveness of diagnostic processes. This paper presents an ensemble deep learning approach for the definite classification of non-carcinoma and carcinoma breast cancer histopathology images using our collected dataset. We trained four different models based on pre-trained VGG16 and VGG19 architectures. Initially, we followed 5-fold cross-validation operations on all the individual models, namely, fully-trained VGG16, fine-tuned VGG16, fully-trained VGG19, and fine-tuned VGG19 models. Then, we followed an ensemble strategy by taking the average of predicted probabilities and found that the ensemble of fine-tuned VGG16 and fine-tuned VGG19 performed competitive classification performance, especially on the carcinoma class. The ensemble of fine-tuned VGG16 and VGG19 models offered sensitivity of97.73%for carcinoma class and overall accuracy of95.29%. Also, it offered an F1 score of95.29%. These experimental results demonstrated that our proposed deep learning approach is effective for the automatic classification of complex-natured histopathology images of breast cancer, more specifically for carcinoma images.

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