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Model merging combines the parameters of multiple neural networks into a single model without additional training. As fine-tuned large language models (LLMs) proliferate, merging offers a computationally efficient alternative to ensembles…

计算与语言 · 计算机科学 2026-03-31 Mingyang Song , Mao Zheng

The recent success of specialized Large Language Models (LLMs) in domains such as mathematical reasoning and coding has led to growing interest in methods for merging these expert LLMs into a unified Mixture-of-Experts (MoE) model, with the…

计算与语言 · 计算机科学 2025-02-18 Yuhang Zhou , Giannis Karamanolakis , Victor Soto , Anna Rumshisky , Mayank Kulkarni , Furong Huang , Wei Ai , Jianhua Lu

Model merging aggregates Large Language Models (LLMs) finetuned on different tasks into a stronger one. However, parameter conflicts between models leads to performance degradation in averaging. While model routing addresses this issue by…

机器学习 · 计算机科学 2025-02-12 Kunfeng Lai , Zhenheng Tang , Xinglin Pan , Peijie Dong , Xiang Liu , Haolan Chen , Li Shen , Bo Li , Xiaowen Chu

Large Language Models (LLMs) have transformed both everyday life and scientific research. However, adapting LLMs from general-purpose models to specialized tasks remains challenging, particularly in resource-constrained environments.…

机器学习 · 计算机科学 2025-09-12 Hao Zhang , Bo Huang , Zhenjia Li , Xi Xiao , Hui Yi Leong , Zumeng Zhang , Xinwei Long , Tianyang Wang , Hao Xu

Large Language Models have shown remarkable capabilities in the NLP domain. Their effectiveness can mainly be attributed to their ability to adapt to an array of downstream tasks. However, generally, full fine-tuning is a computationally…

计算与语言 · 计算机科学 2025-06-10 Harsh Bihany , Shubham Patel , Ashutosh Modi

Precise spatial modeling in the operating room (OR) is foundational to many clinical tasks, supporting intraoperative awareness, hazard avoidance, and surgical decision-making. While existing approaches leverage large-scale multimodal…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Peiqi He , Zhenhao Zhang , Yixiang Zhang , Xiongjun Zhao , Shaoliang Peng

Low-Rank Adaptation (LoRA) drives research to align its performance with full fine-tuning. However, significant challenges remain: (1) Simply increasing the rank size of LoRA does not effectively capture high-rank information, which leads…

机器学习 · 计算机科学 2024-10-21 Chuanyu Tang , Yilong Chen , Zhenyu Zhang , Junyuan Shang , Wenyuan Zhang , Yong Huang , Tingwen Liu

Software reuse has long been recognized as a critical and widely studied topic in software engineering, offering substantial benefits in reducing development costs, improving software quality, and enhancing operational efficiency. This…

软件工程 · 计算机科学 2026-02-02 You Lu , Jiyang Zhang , Bihuan Chen , Chaofeng Sha , Dingji Wang , Xin Peng

While Multimodal Large Language Models (MLLMs) excel at generalizing across modalities and tasks, effectively adapting them to specific downstream tasks while simultaneously retaining both general and specialized knowledge remains…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Jian Liang , Wenke Huang , Guancheng Wan , Qu Yang , Mang Ye

Model merging has shown that multitask models can be created by directly combining the parameters of different models that are each specialized on tasks of interest. However, models trained independently on distinct tasks often exhibit…

机器学习 · 计算机科学 2026-03-17 Pratik Ramesh , George Stoica , Arun Iyer , Leshem Choshen , Judy Hoffman

Adapting large language models (LLMs) to new languages typically involves continual pre-training (CT) followed by supervised fine-tuning (SFT). However, this CT-then-SFT approach struggles with limited data in the context of low-resource…

计算与语言 · 计算机科学 2025-02-10 Mingxu Tao , Chen Zhang , Quzhe Huang , Tianyao Ma , Songfang Huang , Dongyan Zhao , Yansong Feng

Low-Rank Adaptation~(LoRA), which updates the dense neural network layers with pluggable low-rank matrices, is one of the best performed parameter efficient fine-tuning paradigms. Furthermore, it has significant advantages in cross-task…

机器学习 · 计算机科学 2024-10-25 Yuren Mao , Yuhang Ge , Yijiang Fan , Wenyi Xu , Yu Mi , Zhonghao Hu , Yunjun Gao

Effectively integrating molecular graph structures with Large Language Models (LLMs) is a key challenge in drug discovery. Most existing multi-modal alignment methods typically process these structures by fine-tuning the LLM or adding a…

机器学习 · 计算机科学 2025-10-15 Tao Yin , Xiaohong Zhang , Jiacheng Zhang , Li Huang , Zhibin Zhang , Yuansong Zeng , Jin Xie , Meng Yan

With the emergence of 3D foundation models, there is growing interest in fine-tuning them for downstream tasks, where LoRA is the dominant fine-tuning paradigm. As 3D datasets exhibit distinct variations in texture, geometry, camera motion,…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Yu Jiang , Hanwen Jiang , Ahmed Abdelkader , Wen-Sheng Chu , Brandon Y. Feng , Zhangyang Wang , Qixing Huang

Parameter-Efficient Fine-Tuning (PEFT) methods like LoRA have significantly improved the adaptation of LLMs to downstream tasks in a resource-efficient manner. However, in multi-task scenarios, challenges such as training imbalance and the…

计算与语言 · 计算机科学 2024-10-31 Xujia Wang , Haiyan Zhao , Shuo Wang , Hanqing Wang , Zhiyuan Liu

Large language model (LLM) alignment faces a critical dilemma when addressing multiple human preferences: improvements in one dimension frequently come at the expense of others, creating unavoidable trade-offs between competing objectives…

In this paper, we introduce \textbf{Share}d \textbf{Lo}w \textbf{R}ank \textbf{A}daptation (ShareLoRA), a Large Language Model (LLM) fine-tuning technique that balances parameter efficiency, adaptability, and robustness without compromising…

计算与语言 · 计算机科学 2025-05-20 Yurun Song , Junchen Zhao , Ian G. Harris , Sangeetha Abdu Jyothi

The escalating scale of Large Language Models (LLMs) necessitates efficient adaptation techniques. Model merging has gained prominence for its efficiency and controllability. However, existing merging techniques typically serve as post-hoc…

Low-Rank Adaptation (LoRA) enables efficient fine-tuning of large language models but suffers from catastrophic forgetting when learned updates interfere with the dominant singular directions that encode essential pre-trained knowledge. We…

计算与语言 · 计算机科学 2025-11-11 Yifeng Xiong , Xiaohui Xie

Fine-tuning large language models (LLMs) is computationally expensive, and Low-Rank Adaptation (LoRA) provides a cost-effective solution by approximating weight updates through low-rank matrices. In real-world scenarios, LLMs are fine-tuned…

机器学习 · 计算机科学 2025-06-03 Jinda Liu , Yi Chang , Yuan Wu