Cited by 303Domain Adaptation and Few-Shot LearningAdvanced Neural Network ApplicationsMachine Learning and Data Classification

IL2M: Class Incremental Learning With Dual Memory

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Belouadah, Eden, Popescu, Adrian·2019·2019 IEEE/CVF International Conference on Computer Vision (ICCV)

Abstract

This paper presents a class incremental learning (IL) method which exploits fine tuning and a dual memory to reduce the negative effect of catastrophic forgetting in image recognition. First, we simplify the current fine tuning based approaches which use a combination of classification and distillation losses to compensate for the limited availability of past data. We find that the distillation term actually hurts performance when a memory is allowed. Then, we modify the usual class IL memory component. Similar to existing works, a first memory stores exemplar images of past classes. A second memory is introduced here to store past class statistics obtained when they were initially learned. The intuition here is that classes are best modeled when all their data are available and that their initial statistics are useful across different incremental states. A prediction bias towards newly learned classes appears during inference because the dataset is imbalanced in their favor. The challenge is to make predictions of new and past classes more comparable. To do this, scores of past classes are rectified by leveraging contents from both memories. The method has negligible added cost, both in terms of memory and of inference complexity. Experiments with three large public datasets show that the proposed approach is more effective than a range of competitive state-of-the-art methods.

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Research works printed but not linked: 3

  1. Francisco M. Castro, Manuel J. Marín-Jiménez, Nicolás Guil, Cordelia Schmid, and Karteek Alahari. End-to-end in- cremental learning. In Computer Vision -ECCV 2018 -15th European Conference, Munich, Germany, September 8-14, 2018, Proceedings, Part XII, pages 241-257, 2018. 1, 2, 3, 5, 6, 7, 8
  2. Haibo He and Edwardo A. Garcia. Learning from imbal- anced data. IEEE Trans. Knowl. Data Eng., 21(9):1263- 1284, 2009. 2
  3. Sylvestre-Alvise Rebuffi, Hakan Bilen, and Andrea Vedaldi. Efficient parametrization of multi-domain deep neural net- works. In 2018 IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2018, Salt Lake City, UT, USA, June 18-22, 2018, pages 8119-8127, 2018. 2

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Authors
Belouadah, E., & Popescu, A.
Affiliations
Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
Venue
2019 IEEE/CVF International Conference on Computer Vision (ICCV)
Publisher
IEEE
Published
2019-10
Pages
583-592
OpenAlex
W2981864462
Cited by
302
References
30
Citations by year
2026: 20 · 2025: 44 · 2024: 60 · 2023: 57 · 2022: 47 · 2021: 52 · 2020: 21 · 2019: 1
FWCI
11.57
Type
conference paper
Language
en
Open access
Locations
  • IEEE/CVF International Conference on Computer Vision (ICCV) (publishedVersion)
  • HAL (submittedVersion, cc-by-nc-nd)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning and Data Classification
Keywords
class-incremental learning, catastrophic forgetting, fine-tuning, knowledge distillation, exemplar memory, image recognition, prediction bias, class imbalance

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