Papers › Divide and not forget: Ensemble of selectively trained experts in Continual Learning

Divide and not forget: Ensemble of selectively trained experts in Continual Learning

18 Jan 2024arXiv:2401.10191archive 2025-07-28

Grzegorz Rypeść, Sebastian Cygert, Valeriya Khan, Tomasz Trzciński, Bartosz Zieliński, Bartłomiej Twardowski

Class-incremental learning is becoming more popular as it helps models widen their applicability while not forgetting what they already know. A trend in this area is to use a mixture-of-expert technique, where different models work together to solve the task. However, the experts are usually trained all at once using whole task data, which makes them all prone to forgetting and increasing computational burden. To address this limitation, we introduce a novel approach named SEED. SEED selects only one, the most optimal expert for a considered task, and uses data from this task to fine-tune only this expert. For this purpose, each expert represents each class with a Gaussian distribution, and the optimal expert is selected based on the similarity of those distributions. Consequently, SEED increases diversity and heterogeneity within the experts while maintaining the high stability of this ensemble method. The extensive experiments demonstrate that SEED achieves state-of-the-art performance in exemplar-free settings across various scenarios, showing the potential of expert diversification through data in continual learning.

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grypesc/seed officialmentioned in papermentioned on GitHubpytorch report

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3ran · our draft was wrong
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ClassDirectoryDataset grypesc/seed/src/approach/seed.py official repository ran MIT (permissive) · 911cc14e7fa1b63a · report
ClassMemoryDataset grypesc/seed/src/approach/seed.py official repository ran MIT (permissive) · e49ad10d768d006a · report
ExemplarsDataset grypesc/seed/src/approach/seed.py official repository ran MIT (permissive) · 7dbb544669ebb01d · report
GaussianMixture grypesc/seed/src/approach/seed.py official repository ran MIT (permissive) · ee35cf16bfbb70b6 · report
Inc_Learning_Appr grypesc/seed/src/approach/seed.py official repository ran MIT (permissive) · 6af6e3f22725346c · report
calculate_matmul grypesc/seed/src/approach/seed.py official repository ran · fixture could not drive it MIT (permissive) · 4451964134c9d216 · report
calculate_matmul_n_times grypesc/seed/src/approach/seed.py official repository ran · our draft was wrong MIT (permissive) · fa6374ff7f7939f4 · report
softmax_temperature grypesc/seed/src/approach/seed.py official repository ran · our draft was wrong fingerprinted MIT (permissive) · c1cbed26c18dd1f2 · report
softmax_temperature grypesc/seed/src/approach/seed.py official repository ran · our draft was wrong fingerprinted MIT (permissive) · 56730f951de5fd44 · report
Appr grypesc/seed/src/approach/seed.py official repository unverified MIT (permissive) · 9a8759c93a1ea172 · report

Tasks

Class Incremental LearningContinual LearningDiversityExemplar-FreeIncremental Learningclass-incremental learning

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Class Incremental Learning CIFAR100-B0(50 tasks)-no-exemplars SEED Average Incremental Accuracy 42.6 #1 of 1 Archive leaderboard report
Class Incremental Learning Cifar100-B0(10 tasks)-no-exemplars SEED Average Incremental Accuracy 61.7 #1 of 1 Archive leaderboard report
Class Incremental Learning Cifar100-B0(20 tasks)-no-exemplars SEED Average Incremental Accuracy 56.2 #1 of 1 Archive leaderboard report

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