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author:

Hou, C. (Hou, C..) [1] | Lin, X. (Lin, X..) [2] | Huang, H. (Huang, H..) [3] | Xu, S. (Xu, S..) [4] (Scholars:徐胜) | Fan, J. (Fan, J..) [5] | Shi, Y. (Shi, Y..) [6] | Lv, H. (Lv, H..) [7]

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Scopus

Abstract:

Identification of fossil species is crucial to evolutionary studies. Recent advances from deep learning have shown promising prospects in fossil image identification. However, the quantity and quality of labelled fossil images are often limited due to fossil preservation, conditioned sampling and expensive and inconsistent label annotation by domain experts, which pose great challenges to training deep learning-based image classification models. To address these challenges, we follow the idea of the wisdom of crowds and propose a multiview ensemble framework, which collects Original (O), Grey (G) and Skeleton (S) views of each fossil image reflecting its different characteristics to train multiple base models, and then makes the final decision via soft voting. Experiments on the largest fusulinid dataset with 2400 images show that the proposed OGS consistently outperforms baselines (using a single model for each view), and obtains superior or comparable performance compared to OOO (using three base models for three the same Original views). Besides, as the training data decreases, the proposed framework achieves more gains. While considering the identification consistency estimation with respect to human experts, OGS receives the highest agreement with the original labels of dataset and with the re-identifications of two human experts. The validation performance provides a quantitative estimation of consistency across different experts and genera. We conclude that the proposed framework can present state-of-the-art performance in the fusulinid fossil identification case study. This framework is designed for general fossil identification and it is expected to see applications to other fossil datasets in future work. Notably, the result, which shows more performance gains as train set size decreases or over a smaller imbalance fossil dataset, suggests the potential application to identify rare fossil images. The proposed framework also demonstrates its potential for assessing and resolving inconsistencies in fossil identification. © 2023 The Authors. Methods in Ecology and Evolution published by John Wiley & Sons Ltd on behalf of British Ecological Society.

Keyword:

deep learning ensemble fossil identification fusulinid identification inconsistency image classification palaeoecology

Community:

  • [ 1 ] [Hou C.]Ministry of Education Key Laboratory of Bioinformatics, Bioinformatics Division, Beijing National Research Center for Information Science and Technology, Department of Automation, Tsinghua University, Beijing, China
  • [ 2 ] [Hou C.]Fuzhou Institute of Data Technology, Fuzhou, China
  • [ 3 ] [Lin X.]Fuzhou Institute of Data Technology, Fuzhou, China
  • [ 4 ] [Lin X.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China
  • [ 5 ] [Huang H.]School of Earth Sciences and Engineering and Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, China
  • [ 6 ] [Xu S.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China
  • [ 7 ] [Fan J.]School of Earth Sciences and Engineering and Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, China
  • [ 8 ] [Shi Y.]School of Earth Sciences and Engineering and Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing, China
  • [ 9 ] [Lv H.]Ministry of Education Key Laboratory of Bioinformatics, Bioinformatics Division, Beijing National Research Center for Information Science and Technology, Department of Automation, Tsinghua University, Beijing, China
  • [ 10 ] [Lv H.]Fuzhou Institute of Data Technology, Fuzhou, China

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Source :

Methods in Ecology and Evolution

ISSN: 2041-210X

Year: 2023

Issue: 12

Volume: 14

Page: 3020-3034

6 . 3

JCR@2023

6 . 3 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:2

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SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 0

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