Compacting, Picking and Growing for Unforgetting Continual Learning
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Abstract (arXiv)
Continual lifelong learning is essential to many applications. In this paper, we propose a simple but effective approach to continual deep learning. Our approach leverages the principles of deep model compression, critical weights selection, and progressive networks expansion. By enforcing their integration in an iterative manner, we introduce an incremental learning method that is scalable to the number of sequential tasks in a continual learning process. Our approach is easy to implement and owns several favorable characteristics. First, it can avoid forgetting (i.e., learn new tasks while remembering all previous tasks). Second, it allows model expansion but can maintain the model compactness when handling sequential tasks. Besides, through our compaction and selection/expansion mechanism, we show that the knowledge accumulated through learning previous tasks is helpful to build a better model for the new tasks compared to training the models independently with tasks. Experimental results show that our approach can incrementally learn a deep model tackling multiple tasks without forgetting, while the model compactness is maintained with the performance more satisfiable than individual task training.
Key facts. Cited by 207 papers in the map (data through 14 Oct 2026). First posted on arXiv 15 Oct 2019.
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Citing papers per year: 2021: 20; 2022: 39; 2023: 57; 2024: 44; 2025: 34; 2026: 13.
207 papers.
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- 2023LIBERO: Benchmarking Knowledge Transfer for Lifelong Robot Learningcited by 1,410
- 2023A Comprehensive Survey of Continual Learning: Theory, Method and Applicationcited by 872
- 2021DER: Dynamically Expandable Representation for Class Incremental Learningcited by 355
- 2021DyTox: Transformers for Continual Learning with DYnamic TOken eXpansioncited by 291
- 2022S-Prompts Learning with Pre-trained Transformers: An Occam's Razor for Domain Incremental Learningcited by 246
- 2022FOSTER: Feature Boosting and Compression for Class-Incremental Learningcited by 229
- 2023Class-Incremental Learning: A Surveycited by 209
- 2024InfLoRA: Interference-Free Low-Rank Adaptation for Continual Learningcited by 198
- 2021Training Networks in Null Space of Feature Covariance for Continual Learningcited by 143
- 2022Continual Learning and Private Unlearningcited by 130
- 2023A Unified Continual Learning Framework with General Parameter-Efficient Tuningcited by 125
- 2022Self-Sustaining Representation Expansion for Non-Exemplar Class-Incremental Learningcited by 118
38 more
- 2021GCR: Gradient Coreset Based Replay Buffer Selection For Continual Learningcited by 95
- 2022Continual Learning of Natural Language Processing Tasks: A Surveycited by 83
- 2022TRGP: Trust Region Gradient Projection for Continual Learningcited by 82
- 2022A Theoretical Study on Solving Continual Learningcited by 80
- 2024Continual Learning and Catastrophic Forgettingcited by 77
- 2023A Comprehensive Survey of Forgetting in Deep Learning Beyond Continual Learningcited by 69
- 2022Class-Incremental Learning with Strong Pre-trained Modelscited by 60
- 2022Beyond Not-Forgetting: Continual Learning with Backward Knowledge Transfercited by 59
- 2021Recent Advances of Continual Learning in Computer Vision: An Overviewcited by 55
- 2024Self-Expansion of Pre-trained Models with Mixture of Adapters for Continual Learningcited by 53
- 2021Efficient Feature Transformations for Discriminative and Generative Continual Learningcited by 50
- 2021Firefly Neural Architecture Descent: a General Approach for Growing Neural Networkscited by 49
- 2022A Continual Deepfake Detection Benchmark: Dataset, Methods, and Essentialscited by 45
- 2023MiVOLO: Multi-input Transformer for Age and Gender Estimationcited by 42
- 2021Facial expression and attributes recognition based on multi-task learning of lightweight neural networkscited by 40
- 2023Continual Learning on Dynamic Graphs via Parameter Isolationcited by 36
- 2023The Ideal Continual Learner: An Agent That Never Forgetscited by 35
- 2021Continual Learning for Recurrent Neural Networks: an Empirical Evaluationcited by 34
- 2023Audio-Visual Class-Incremental Learningcited by 33
- 2023A Unified Approach to Domain Incremental Learning with Memory: Theory and Algorithmcited by 33
- 2024How to Continually Adapt Text-to-Image Diffusion Models for Flexible Customization?cited by 33
- 2022Graph Lifelong Learning: A Surveycited by 30
- 2022Meta-attention for ViT-backed Continual Learningcited by 29
- 2023Learnability and Algorithm for Continual Learningcited by 28
- 2022Continual Learning with Bayesian Model based on a Fixed Pre-trained Feature Extractorcited by 27
- 2022How to Reuse and Compose Knowledge for a Lifetime of Tasks: A Survey on Continual Learning and Functional Compositioncited by 27
- 2023Dynamic Residual Classifier for Class Incremental Learningcited by 26
- 2022Continual Object Detection: A review of definitions, strategies, and challengescited by 25
- 2023SIESTA: Efficient Online Continual Learning with Sleepcited by 24
- 2023How Efficient Are Today's Continual Learning Algorithms?cited by 24
- 2023Dealing with Cross-Task Class Discrimination in Online Continual Learningcited by 24
- 2023Catastrophic Forgetting in Deep Learning: A Comprehensive Taxonomycited by 24
- 2021Continual Learning for Task-oriented Dialogue System with Iterative Network Pruning, Expanding and Maskingcited by 22
- 2023Task-Aware Information Routing from Common Representation Space in Lifelong Learningcited by 22
- 2023Continual Learning in Medical Image Analysis: A Comprehensive Review of Recent Advancements and Future Prospectscited by 22
- 2024Continual LLaVA: Continual Instruction Tuning in Large Vision-Language Modelscited by 22
- 2021Continual Learning in Sensor-based Human Activity Recognition: an Empirical Benchmark Analysiscited by 21
- 2022Continual Learning Based on OOD Detection and Task Maskingcited by 21
50 most cited of 207 All 207 (JSON)
- 2026Restoring without Forgetting: Filter-Level Continual Image Restoration via Parameter-Space Integrated Gradients29 Sep 2026
- 2026When to Review: Spaced Repetition for Continual Pre-Training of Language Models18 Aug 2026
- 2026Plasticity of Growing and Elastic Neural Networks in Online Continual Learning2 Aug 2026
- 2026AdaHAT: Adaptive Hard Attention to the Task in Task-Incremental Learning2 Aug 2026
- 2026Listen, Look, and Learn: Learning Without Forgetting through SAM-Audio9 Jun 2026
- 2026Task-Focused Memorization for Multimodal Agents29 May 2026
- 2026CoMemNet: A Continual Memory Network with Drift-Aware Sampling for Traffic Prediction7 May 2026
- 2026NORACL: Neurogenesis for Oracle-free Resource-Adaptive Continual Learning29 Apr 2026
- 2026ProTPS: Prototype-Guided Text Prompt Selection for Continual Learning1 Apr 2026
- 2026Don't Look Back in Anger: MAGIC Net for Streaming Continual Learning with Temporal Dependence9 Mar 2026
- 2026DeLo: Dual Decomposed Low-Rank Experts Collaboration for Continual Missing Modality Learning2 Mar 2026
- 2026Policy Gradient with Adaptive Entropy Annealing for Continual Fine-Tuning15 Feb 2026
38 more
- 2026Continual Fine-Tuning with Provably Accurate and Parameter-Free Task Retrieval28 Jan 2026
- 2025Dynamic Feedback Engines: Layer-Wise Control for Self-Regulating Continual Learning25 Dec 2025
- 2025Sequencing to Mitigate Catastrophic Forgetting in Continual Learning18 Dec 2025
- 2025Multi-Modal Continual Learning via Cross-Modality Adapters and Representation Alignment with Knowledge Preservation10 Nov 2025
- 2025Sharing the Learned Knowledge-base to Estimate Convolutional Filter Parameters for Continual Image Restoration7 Nov 2025
- 2025COLA: Continual Learning via Autoencoder Retrieval of Adapters22 Oct 2025
- 2025KORE: Enhancing Knowledge Injection for Large Multimodal Models via Knowledge-Oriented Controls22 Oct 2025
- 2025Understanding Catastrophic Interference: On the Identifibility of Latent Representations27 Sep 2025
- 2025Efficient Reinforcement Learning by Reducing Forgetting with Elephant Activation Functions23 Sep 2025
- 2025Unsupervised Video Continual Learning via Non-Parametric Deep Embedded Clustering29 Aug 2025
- 2025Empirical Evidences for the Effects of Feature Diversity in Open Set Recognition and Continual Learning18 Aug 2025
- 2025Index-Aligned Query Distillation for Transformer-based Incremental Object Detection15 Aug 2025
- 2025Harnessing Textual Semantic Priors for Knowledge Transfer and Refinement in CLIP-Driven Continual Learning3 Aug 2025
- 2025RainbowPrompt: Diversity-Enhanced Prompt-Evolving for Continual Learning30 Jul 2025
- 2025CKAA: Cross-subspace Knowledge Alignment and Aggregation for Robust Continual Learning13 Jul 2025
- 2025Branch, or Layer? Zeroth-Order Optimization for Continual Learning of Vision-Language Models14 Jun 2025
- 2025Self-Composing Policies for Scalable Continual Reinforcement Learning4 Jun 2025
- 2025Rethinking Continual Learning with Progressive Neural Collapse30 May 2025
- 2025Train with Perturbation, Infer after Merging: A Two-Stage Framework for Continual Learning28 May 2025
- 2025SplitLoRA: Balancing Stability and Plasticity in Continual Learning Through Gradient Space Splitting28 May 2025
- 2025Continual Learning Beyond Experience Rehearsal and Full Model Surrogates28 May 2025
- 2025Dynamic Dual Buffer with Divide-and-Conquer Strategy for Online Continual Learning23 May 2025
- 2025Gated Integration of Low-Rank Adaptation for Continual Learning of Large Language Models21 May 2025
- 2025Parameter Efficient Continual Learning with Dynamic Low-Rank Adaptation17 May 2025
- 2025Onboard Optimization and Learning: A Survey7 May 2025
- 2025Noise-Tolerant Coreset-Based Class Incremental Continual Learning23 Apr 2025
- 2025Continual Learning of Multiple Cognitive Functions with Brain-inspired Temporal Development Mechanism8 Apr 2025
- 2025BECAME: BayEsian Continual Learning with Adaptive Model MErging3 Apr 2025
- 2025MetaCLBench: Meta Continual Learning Benchmark on Resource-Constrained Edge Devices31 Mar 2025
- 2025Pareto Continual Learning: Preference-Conditioned Learning and Adaption for Dynamic Stability-Plasticity Trade-off30 Mar 2025
- 2025Continual learning via probabilistic exchangeable sequence modelling26 Mar 2025
- 2025Continual Multimodal Contrastive Learning19 Mar 2025
- 2025Achieving More with Less: Additive Prompt Tuning for Rehearsal-Free Class-Incremental Learning11 Mar 2025
- 2025Upweighting Easy Samples in Fine-Tuning Mitigates Forgetting5 Feb 2025
- 2025Incrementally Learning Multiple Diverse Data Domains via Multi-Source Dynamic Expansion Model15 Jan 2025
- 2024Balanced Gradient Sample Retrieval for Enhanced Knowledge Retention in Proxy-based Continual Learning19 Dec 2024
- 2024Efficient Continual Learning for Small Language Models with a Discrete Key-Value Bottleneck11 Dec 2024
- 2024DESIRE: Dynamic Knowledge Consolidation for Rehearsal-Free Continual Learning28 Nov 2024
50 newest of 207 All 207 (JSON)
- 2025Self-Composing Policies for Scalable Continual Reinforcement Learningcited by 11
- 2024Reset & Distill: A Recipe for Overcoming Negative Transfer in Continual Reinforcement Learningcited by 4
- 2024Towards Generalizable Reinforcement Learning via Causality-Guided Self-Adaptive Representationscited by 2
- 2025Efficient Reinforcement Learning by Reducing Forgetting with Elephant Activation Functionscited by 0
- 2026Policy Gradient with Adaptive Entropy Annealing for Continual Fine-Tuningcited by 0
- 2026Policy Gradient with Adaptive Entropy Annealing for Continual Fine-Tuning15 Feb 2026
- 2025Efficient Reinforcement Learning by Reducing Forgetting with Elephant Activation Functions23 Sep 2025
- 2025Self-Composing Policies for Scalable Continual Reinforcement Learning4 Jun 2025
- 2024Towards Generalizable Reinforcement Learning via Causality-Guided Self-Adaptive Representations30 Jul 2024
- 2024Reset & Distill: A Recipe for Overcoming Negative Transfer in Continual Reinforcement Learning8 Mar 2024
- 2024Densely Distilling Cumulative Knowledge for Continual Learningcited by 1
- 2023Adaptively Integrated Knowledge Distillation and Prediction Uncertainty for Continual Learningcited by 0
- 2023SRIL: Selective Regularization for Class-Incremental Learningcited by 0
- 2024Brain-Inspired Continual Learning-Robust Feature Distillation and Re-Consolidation for Class Incremental Learningcited by 0
- 2024Densely Distilling Cumulative Knowledge for Continual Learning16 May 2024
- 2024Brain-Inspired Continual Learning-Robust Feature Distillation and Re-Consolidation for Class Incremental Learning22 Apr 2024
- 2023SRIL: Selective Regularization for Class-Incremental Learning9 May 2023
- 2023Adaptively Integrated Knowledge Distillation and Prediction Uncertainty for Continual Learning18 Jan 2023
- 2024Continual LLaVA: Continual Instruction Tuning in Large Vision-Language Modelscited by 22
- 2025Branch, or Layer? Zeroth-Order Optimization for Continual Learning of Vision-Language Modelscited by 3
- 2025KORE: Enhancing Knowledge Injection for Large Multimodal Models via Knowledge-Oriented Controlscited by 0
- 2026DeLo: Dual Decomposed Low-Rank Experts Collaboration for Continual Missing Modality Learningcited by 0
- 2026DeLo: Dual Decomposed Low-Rank Experts Collaboration for Continual Missing Modality Learning2 Mar 2026
- 2025KORE: Enhancing Knowledge Injection for Large Multimodal Models via Knowledge-Oriented Controls22 Oct 2025
- 2025Branch, or Layer? Zeroth-Order Optimization for Continual Learning of Vision-Language Models14 Jun 2025
- 2024Continual LLaVA: Continual Instruction Tuning in Large Vision-Language Models4 Nov 2024
- 2024Low-Rank Mixture-of-Experts for Continual Medical Image Segmentationcited by 16
- 2023An Efficient General-Purpose Modular Vision Model via Multi-Task Heterogeneous Trainingcited by 6
- 2024More Experts Than Galaxies: Conditionally-overlapping Experts With Biologically-Inspired Fixed Routingcited by 2
- 2024More Experts Than Galaxies: Conditionally-overlapping Experts With Biologically-Inspired Fixed Routing10 Oct 2024
- 2024Low-Rank Mixture-of-Experts for Continual Medical Image Segmentation19 Jun 2024
- 2023An Efficient General-Purpose Modular Vision Model via Multi-Task Heterogeneous Training29 Jun 2023
- 2026Task-Focused Memorization for Multimodal Agentscited by 1
- 2026Task-Focused Memorization for Multimodal Agents29 May 2026
- 2022Continual Learning and Private Unlearningcited by 130
- 2022Continual Learning and Private Unlearning24 Mar 2022
- 2023LIBERO: Benchmarking Knowledge Transfer for Lifelong Robot Learningcited by 1,410
- 2023A Comprehensive Survey of Continual Learning: Theory, Method and Applicationcited by 872
- 2021DER: Dynamically Expandable Representation for Class Incremental Learningcited by 355
- 2021DyTox: Transformers for Continual Learning with DYnamic TOken eXpansioncited by 291
- 2022S-Prompts Learning with Pre-trained Transformers: An Occam's Razor for Domain Incremental Learningcited by 246
- 2022FOSTER: Feature Boosting and Compression for Class-Incremental Learningcited by 229
- 2023Class-Incremental Learning: A Surveycited by 209
- 2024InfLoRA: Interference-Free Low-Rank Adaptation for Continual Learningcited by 198
- 2021Training Networks in Null Space of Feature Covariance for Continual Learningcited by 143
- 2023A Unified Continual Learning Framework with General Parameter-Efficient Tuningcited by 125
- 2022Self-Sustaining Representation Expansion for Non-Exemplar Class-Incremental Learningcited by 118
- 2021GCR: Gradient Coreset Based Replay Buffer Selection For Continual Learningcited by 95
12 most cited of 186 All 186 (JSON)
- 2026Restoring without Forgetting: Filter-Level Continual Image Restoration via Parameter-Space Integrated Gradients29 Sep 2026
- 2026When to Review: Spaced Repetition for Continual Pre-Training of Language Models18 Aug 2026
- 2026Plasticity of Growing and Elastic Neural Networks in Online Continual Learning2 Aug 2026
- 2026AdaHAT: Adaptive Hard Attention to the Task in Task-Incremental Learning2 Aug 2026
- 2026Listen, Look, and Learn: Learning Without Forgetting through SAM-Audio9 Jun 2026
- 2026CoMemNet: A Continual Memory Network with Drift-Aware Sampling for Traffic Prediction7 May 2026
- 2026NORACL: Neurogenesis for Oracle-free Resource-Adaptive Continual Learning29 Apr 2026
- 2026ProTPS: Prototype-Guided Text Prompt Selection for Continual Learning1 Apr 2026
- 2026Don't Look Back in Anger: MAGIC Net for Streaming Continual Learning with Temporal Dependence9 Mar 2026
- 2026Continual Fine-Tuning with Provably Accurate and Parameter-Free Task Retrieval28 Jan 2026
- 2025Dynamic Feedback Engines: Layer-Wise Control for Self-Regulating Continual Learning25 Dec 2025
- 2025Sequencing to Mitigate Catastrophic Forgetting in Continual Learning18 Dec 2025
12 newest of 186 All 186 (JSON)