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The pretrained large language models (LLMs) are finetuned with labeled data for better instruction following ability and alignment with human values. In this paper, we study the learning dynamics of LLM finetuning on reasoning tasks and…

计算与语言 · 计算机科学 2025-09-30 Zhiwen Ruan , Yun Chen , Yutao Hou , Peng Li , Yang Liu , Guanhua Chen

Multimodal Large Language Model (MLLM) have demonstrated strong generalization capabilities across diverse distributions and tasks, largely due to extensive pre-training datasets. Fine-tuning MLLM has become a common practice to improve…

计算与语言 · 计算机科学 2024-11-19 Wenke Huang , Jian Liang , Zekun Shi , Didi Zhu , Guancheng Wan , He Li , Bo Du , Dacheng Tao , Mang Ye

Continual learning in large language models (LLMs) typically encounters the critical challenge of catastrophic forgetting, where previously acquired knowledge deteriorates upon exposure to new data. While techniques like replay buffers and…

机器学习 · 计算机科学 2025-04-25 Sneh Pillai

Neural networks have achieved remarkable success in many cognitive tasks. However, when they are trained sequentially on multiple tasks without access to old data, their performance on early tasks tend to drop significantly. This problem is…

机器学习 · 计算机科学 2021-02-10 Dong Yin , Mehrdad Farajtabar , Ang Li , Nir Levine , Alex Mott

Fine-tuning large language models (LLMs) can cause them to lose their general capabilities. However, the intrinsic mechanisms behind such forgetting remain unexplored. In this paper, we begin by examining this phenomenon by focusing on…

人工智能 · 计算机科学 2024-12-02 Gangwei Jiang , Zhaoyi Li , Defu Lian , Ying Wei

Recent advancements in Large Language Models (LLMs) have showcased their remarkable capabilities in text understanding and generation. However, even stronger LLMs are susceptible to acquiring erroneous or obsolete information from the…

计算与语言 · 计算机科学 2024-02-19 Shiwen Ni , Dingwei Chen , Chengming Li , Xiping Hu , Ruifeng Xu , Min Yang

We study and quantify the problem of forgetting when fine-tuning pre-trained large language models (LLMs) on a downstream task. We find that parameter-efficient fine-tuning (PEFT) strategies, such as Low-Rank Adapters (LoRA), still suffer…

计算与语言 · 计算机科学 2024-01-12 Damjan Kalajdzievski

Large language models have been adopted in the medical domain for clinical documentation to reduce clinician burden. However, studies have reported that LLMs often "forget" a significant amount of instruction-following ability when…

计算与语言 · 计算机科学 2026-04-03 Mengxian Lyu , Cheng Peng , Ziyi Chen , Mengyuan Zhang , Jieting Li Lu , Yonghui Wu

Fine-tuning large language models (LLMs) with limited data poses a practical challenge in low-resource languages, specialized domains, and constrained deployment settings. While pre-trained LLMs provide strong foundations, effective…

计算与语言 · 计算机科学 2025-10-29 Marton Szep , Daniel Rueckert , Rüdiger von Eisenhart-Rothe , Florian Hinterwimmer

As open-weight large language models (LLMs) achieve ever more impressive performances across a wide range of tasks in English, practitioners aim to adapt these models to different languages. However, such language adaptation is often…

机器学习 · 计算机科学 2024-07-17 Anton Alexandrov , Veselin Raychev , Mark Niklas Müller , Ce Zhang , Martin Vechev , Kristina Toutanova

Instruction tuning is now a widely adopted approach to aligning large multimodal models (LMMs) to follow human intent. It unifies the data format of vision-language tasks, enabling multi-task joint training. However, vision-language tasks…

机器学习 · 计算机科学 2023-11-29 Jinghan He , Haiyun Guo , Ming Tang , Jinqiao Wang

Large Language Models (LLMs), built on Transformer architectures, exhibit remarkable generalization across a wide range of tasks. However, fine-tuning these models for specific tasks remains resource-intensive due to their extensive…

机器学习 · 计算机科学 2025-05-15 Xinhao Yao , Hongjin Qian , Xiaolin Hu , Gengze Xu , Wei Liu , Jian Luan , Bin Wang , Yong Liu

Catastrophic forgetting is a pervasive issue for pre-trained language models (PLMs) during continual learning, where models lose previously acquired knowledge when sequentially trained on a series of tasks. The model's ability to retain old…

计算与语言 · 计算机科学 2025-02-18 Biqing Zeng , Zehan Li , Aladdin Ayesh

Large language models (LLMs) are often fine-tuned for use on downstream tasks, though this can degrade capabilities learned during previous training. This phenomenon, often referred to as catastrophic forgetting, has important potential…

计算与语言 · 计算机科学 2024-12-30 Megan Ung , Alicia Sun , Samuel J. Bell , Bhaktipriya Radharapu , Levent Sagun , Adina Williams

Large language models (LLMs) suffer from catastrophic forgetting during continual learning. Conventional rehearsal-based methods rely on previous training data to retain the model's ability, which may not be feasible in real-world…

计算与语言 · 计算机科学 2024-05-28 Jianheng Huang , Leyang Cui , Ante Wang , Chengyi Yang , Xinting Liao , Linfeng Song , Junfeng Yao , Jinsong Su

Fine-tuning has been proven to be a simple and effective technique to transfer the learned knowledge of Pre-trained Language Models (PLMs) to downstream tasks. However, vanilla fine-tuning easily overfits the target data and degrades the…

计算与语言 · 计算机科学 2023-06-21 Junhao Zheng , Qianli Ma , Shengjie Qiu , Yue Wu , Peitian Ma , Junlong Liu , Huawen Feng , Xichen Shang , Haibin Chen

Currently used semantic parsing systems deployed in voice assistants can require weeks to train. Datasets for these models often receive small and frequent updates, data patches. Each patch requires training a new model. To reduce training…

计算与语言 · 计算机科学 2021-03-23 Vladislav Lialin , Rahul Goel , Andrey Simanovsky , Anna Rumshisky , Rushin Shah

This paper introduces a multifaceted methodology for fine-tuning and evaluating large language models (LLMs) for specialized monetization tasks. The goal is to balance general language proficiency with domain-specific skills. The…

计算与语言 · 计算机科学 2023-10-10 Zheng Zhang , Chen Zheng , Da Tang , Ke Sun , Yukun Ma , Yingtong Bu , Xun Zhou , Liang Zhao

Large language models (LLMs) often require vast amounts of text to effectively acquire new knowledge. While continuing pre-training on large corpora or employing retrieval-augmented generation (RAG) has proven successful, updating an LLM…

计算与语言 · 计算机科学 2025-08-11 Hugo Abonizio , Thales Almeida , Roberto Lotufo , Rodrigo Nogueira

Catastrophic forgetting in deep neural networks occurs when learning new tasks degrades performance on previously learned tasks due to knowledge overwriting. Among the approaches to mitigate this issue, regularization techniques aim to…

机器学习 · 计算机科学 2025-07-14 Idan Mashiach , Oren Glickman , Tom Tirer