Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot Ensemble

Cervical cells classification is a crucial component of computer-aided cervical cancer detection. Fine-grained classification is of great clinical importance when guiding clinical decisions on the diagnoses and treatment, which remains very challenging. Recently, convolutional neural networks (CNN)...

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Main Authors: Wen Chen, Xinyu Li, Liang Gao, Weiming Shen
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/20/7292
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author Wen Chen
Xinyu Li
Liang Gao
Weiming Shen
author_facet Wen Chen
Xinyu Li
Liang Gao
Weiming Shen
author_sort Wen Chen
collection DOAJ
description Cervical cells classification is a crucial component of computer-aided cervical cancer detection. Fine-grained classification is of great clinical importance when guiding clinical decisions on the diagnoses and treatment, which remains very challenging. Recently, convolutional neural networks (CNN) provide a novel way to classify cervical cells by using automatically learned features. Although the ensemble of CNN models can increase model diversity and potentially boost the classification accuracy, it is a multi-step process, as several CNN models need to be trained respectively and then be selected for ensemble. On the other hand, due to the small training samples, the advantages of powerful CNN models may not be effectively leveraged. In order to address such a challenging issue, this paper proposes a transfer learning based snapshot ensemble (TLSE) method by integrating snapshot ensemble learning with transfer learning in a unified and coordinated way. Snapshot ensemble provides ensemble benefits within a single model training procedure, while transfer learning focuses on the small sample problem in cervical cells classification. Furthermore, a new training strategy is proposed for guaranteeing the combination. The TLSE method is evaluated on a pap-smear dataset called Herlev dataset and is proved to have some superiorities over the exiting methods. It demonstrates that TLSE can improve the accuracy in an ensemble manner with only one single training process for the small sample in fine-grained cervical cells classification.
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spelling doaj.art-5254d253a5c94f0e974c52436936b00d2023-11-20T17:36:02ZengMDPI AGApplied Sciences2076-34172020-10-011020729210.3390/app10207292Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot EnsembleWen Chen0Xinyu Li1Liang Gao2Weiming Shen3State Key Lab. of Digital Manufacturing Equipment & Technology, Huazhong University of Science & Technology, Wuhan 430074, ChinaState Key Lab. of Digital Manufacturing Equipment & Technology, Huazhong University of Science & Technology, Wuhan 430074, ChinaState Key Lab. of Digital Manufacturing Equipment & Technology, Huazhong University of Science & Technology, Wuhan 430074, ChinaState Key Lab. of Digital Manufacturing Equipment & Technology, Huazhong University of Science & Technology, Wuhan 430074, ChinaCervical cells classification is a crucial component of computer-aided cervical cancer detection. Fine-grained classification is of great clinical importance when guiding clinical decisions on the diagnoses and treatment, which remains very challenging. Recently, convolutional neural networks (CNN) provide a novel way to classify cervical cells by using automatically learned features. Although the ensemble of CNN models can increase model diversity and potentially boost the classification accuracy, it is a multi-step process, as several CNN models need to be trained respectively and then be selected for ensemble. On the other hand, due to the small training samples, the advantages of powerful CNN models may not be effectively leveraged. In order to address such a challenging issue, this paper proposes a transfer learning based snapshot ensemble (TLSE) method by integrating snapshot ensemble learning with transfer learning in a unified and coordinated way. Snapshot ensemble provides ensemble benefits within a single model training procedure, while transfer learning focuses on the small sample problem in cervical cells classification. Furthermore, a new training strategy is proposed for guaranteeing the combination. The TLSE method is evaluated on a pap-smear dataset called Herlev dataset and is proved to have some superiorities over the exiting methods. It demonstrates that TLSE can improve the accuracy in an ensemble manner with only one single training process for the small sample in fine-grained cervical cells classification.https://www.mdpi.com/2076-3417/10/20/7292cervical cells classificationsnapshot ensembletransfer learningdeep convolutional neural networkdeep learningmedical image
spellingShingle Wen Chen
Xinyu Li
Liang Gao
Weiming Shen
Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot Ensemble
Applied Sciences
cervical cells classification
snapshot ensemble
transfer learning
deep convolutional neural network
deep learning
medical image
title Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot Ensemble
title_full Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot Ensemble
title_fullStr Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot Ensemble
title_full_unstemmed Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot Ensemble
title_short Improving Computer-Aided Cervical Cells Classification Using Transfer Learning Based Snapshot Ensemble
title_sort improving computer aided cervical cells classification using transfer learning based snapshot ensemble
topic cervical cells classification
snapshot ensemble
transfer learning
deep convolutional neural network
deep learning
medical image
url https://www.mdpi.com/2076-3417/10/20/7292
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AT xinyuli improvingcomputeraidedcervicalcellsclassificationusingtransferlearningbasedsnapshotensemble
AT lianggao improvingcomputeraidedcervicalcellsclassificationusingtransferlearningbasedsnapshotensemble
AT weimingshen improvingcomputeraidedcervicalcellsclassificationusingtransferlearningbasedsnapshotensemble