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Continual Learning of Natural Language Processing Tasks: A Survey

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arxiv 2211.12701 v2 pith:JWUIBFZP submitted 2022-11-23 cs.CL cs.AIcs.LGcs.NE

Continual Learning of Natural Language Processing Tasks: A Survey

classification cs.CL cs.AIcs.LGcs.NE
keywords learningknowledgesurveytaskscontinualexistingforgettinglearned
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Continual learning (CL) is a learning paradigm that emulates the human capability of learning and accumulating knowledge continually without forgetting the previously learned knowledge and also transferring the learned knowledge to help learn new tasks better. This survey presents a comprehensive review and analysis of the recent progress of CL in NLP, which has significant differences from CL in computer vision and machine learning. It covers (1) all CL settings with a taxonomy of existing techniques; (2) catastrophic forgetting (CF) prevention, (3) knowledge transfer (KT), which is particularly important for NLP tasks; and (4) some theory and the hidden challenge of inter-task class separation (ICS). (1), (3) and (4) have not been included in the existing survey. Finally, a list of future directions is discussed.

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Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Rethinking Transfer in Continual Learning: A Replay-Based Realisation

    cs.LG 2026-07 conditional novelty 7.0

    In continual learning, forward transfer requires target headroom, a persistent carrier, and a compatible source; routing replay by gradient signatures improves accuracy and stability over uniform replay.

  2. ReCoLoRA: Spectrum-Aware Recursive Consolidation for Continual LLM Fine-Tuning

    cs.LG 2026-07 conditional novelty 6.0

    Spectrum-initialized LoRA with elbow ranks and recursive SVD consolidation of the effective weight beats rank-swept PEFT baselines on three of four 7–8B models in continual GLUE fine-tuning.

  3. HEDP: A Hybrid Energy-Distance Prompt-based Framework for Domain Incremental Learning

    cs.AI 2026-05 unverdicted novelty 5.0

    HEDP uses energy regularization inspired by Helmholtz free energy plus hybrid energy-distance weighting in prompts to improve domain selection and achieve a 2.57% accuracy gain on benchmarks like CORe50 while mitigati...

  4. Bridging Linguistic Gaps: Cross-Lingual Mapping in Pre-Training and Dataset for Enhanced Multilingual LLM Performance

    cs.CL 2026-04 unverdicted novelty 5.0

    A new pre-training task that maps languages bidirectionally in embedding space improves machine translation by up to 11.9 BLEU, cross-lingual QA by 6.72 BERTScore points, and understanding accuracy by over 5% over str...

  5. OrthoPhys: Physically Plausible Video Generation with Orthogonal-View Geometry Guidance

    cs.CV 2026-03 unverdicted novelty 5.0

    Generating synchronized four-view orthogonal foreground videos with geometry-enhanced attention, then using them as rigid guidance, improves physical realism in video generation over direct 2D methods.

  6. An Empirical Study of Catastrophic Forgetting in Large Language Models During Continual Fine-tuning

    cs.CL 2023-08 unverdicted novelty 5.0

    Empirical tests show LLMs from 1B to 7B parameters exhibit catastrophic forgetting during continual instruction tuning, with forgetting severity increasing with scale and decoder-only models retaining more than encode...

  7. The Rise and Potential of Large Language Model Based Agents: A Survey

    cs.AI 2023-09 accept novelty 4.0

    The paper surveys the origins, frameworks, applications, and open challenges of AI agents built on large language models.

  8. A Practice of Post-Training on Llama-3 70B with Optimal Selection of Additional Language Mixture Ratio

    cs.CL 2024-09 unverdicted novelty 2.0

    Empirical practice of continual pre-training Llama-3 models with optimized additional language mixture ratios to enhance Chinese capabilities, showing gains in benchmarks and domains like math and coding.