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Related papers: Competition and Attraction Improve Model Fusion

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Model merging combines multiple models into a single model with aggregated capabilities, making it a powerful tool for large language model (LLM) development. However, scaling model merging is challenging: performance depends on the choice…

Machine Learning · Computer Science 2026-02-03 Oliver Bolton , Aakanksha , Arash Ahmadian , Sara Hooker , Marzieh Fadaee , Beyza Ermis

Model merging aims to integrate multiple task-specific fine-tuned models derived from a shared pre-trained checkpoint into a single multi-task model without additional training. Despite extensive research, task interference remains a major…

Machine Learning · Computer Science 2026-02-25 Longhua Li , Lei Qi , Qi Tian , Xin Geng

Model merging, particularly through weight averaging, has shown surprising effectiveness in saving computations and improving model performance without any additional training. However, the interpretability of why and how this technique…

Machine Learning · Computer Science 2025-08-20 Hu Wang , Congbo Ma , Ibrahim Almakky , Ian Reid , Gustavo Carneiro , Mohammad Yaqub

Today's generative models are capable of synthesizing high-fidelity images, but each model specializes on a specific target domain. This raises the need for model merging: combining two or more pretrained generative models into a single…

Machine Learning · Computer Science 2023-03-21 Omri Avrahami , Dani Lischinski , Ohad Fried

The performance of Neural Network (NN)-based language models is steadily improving due to the emergence of new architectures, which are able to learn different natural language characteristics. This paper presents a novel framework, which…

Computation and Language · Computer Science 2017-08-24 Youssef Oualil , Dietrich Klakow

Model merging has emerged as a practical paradigm for integrating multiple independently trained models into a single model without joint retraining. Previous studies have demonstrated the effectiveness of combining parameters through…

Machine Learning · Computer Science 2025-12-02 Zhikang Chen , Sen Cui , Deheng Ye , Min Zhang , Gang Niu , Yu Zhang , Masashi Sugiyama , Tingting Zhu

Model fusion seeks to combine independently trained neural networks into a single model without retraining, but is complicated by representational divergence arising from permutation invariance, random initialization, and heterogeneous…

Machine Learning · Computer Science 2026-05-29 Phoomraphee Luenam , Andreas Spanopoulos , Amit Sant , Thomas Hofmann , Sotiris Anagnostidis , Sidak Pal Singh

Recently, model merging techniques have surfaced as a solution to combine multiple single-talent models into a single multi-talent model. However, previous endeavors in this field have either necessitated additional training or fine-tuning…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Zhengqi Xu , Ke Yuan , Huiqiong Wang , Yong Wang , Mingli Song , Jie Song

Model merging is attracting attention as a novel method for creating a new model by combining the weights of different trained models. While previous studies reported that model merging works well for models trained on a single dataset with…

Machine Learning · Computer Science 2024-09-23 Masanori Yamada , Tomoya Yamashita , Shin'ya Yamaguchi , Daiki Chijiwa

The fine-tuning of pre-trained language models has resulted in the widespread availability of task-specific models. Model merging offers an efficient way to create multi-task models by combining these fine-tuned models at the parameter…

Computation and Language · Computer Science 2025-04-29 Sanwoo Lee , Jiahao Liu , Qifan Wang , Jingang Wang , Xunliang Cai , Yunfang Wu

Model merging combines multiple fine-tuned checkpoints into a single model without additional training, offering an attractive approach to reusing models and efficiently improving performance. However, it remains unclear whether the…

Computation and Language · Computer Science 2026-03-31 Oğuz Kağan Hitit , Leander Girrbach , Zeynep Akata

Model merging has shown great promise at combining expert models, but the benefit of merging is unclear when merging "generalist" models trained on many tasks. We explore merging in the context of large (~100B) models, by recycling…

Computation and Language · Computer Science 2025-02-05 Muhammad Khalifa , Yi-Chern Tan , Arash Ahmadian , Tom Hosking , Honglak Lee , Lu Wang , Ahmet Üstün , Tom Sherborne , Matthias Gallé

The success of pretrain-finetune paradigm brings about the release of numerous model weights. In this case, merging models finetuned on different tasks to enable a single model with multi-task capabilities is gaining increasing attention…

Machine Learning · Computer Science 2024-09-30 Chenyu Huang , Peng Ye , Tao Chen , Tong He , Xiangyu Yue , Wanli Ouyang

Model merging has emerged as a lightweight alternative to joint multi-task learning (MTL), yet the generalization properties of merged models remain largely unexplored. Establishing such theoretical guarantees is non-trivial, as the merging…

Machine Learning · Computer Science 2025-12-25 Seyed Arshan Dalili , Mehrdad Mahdavi

Multi-task model merging aims to consolidate knowledge from multiple fine-tuned task-specific experts into a unified model while minimizing performance degradation. Existing methods primarily approach this by minimizing differences between…

Machine Learning · Computer Science 2025-10-28 Wenju Sun , Qingyong Li , Wen Wang , Yang Liu , Yangli-ao Geng , Boyang Li

Model merging, which combines multiple models into a single model, has gained popularity in recent years. By efficiently integrating the capabilities of various models, this significantly reduces the parameter count and memory usage.…

Machine Learning · Computer Science 2025-02-11 Weiyu Chen , James Kwok

Modern data analytic workloads increasingly require handling multiple data models simultaneously. Two primary approaches meet this need: polyglot persistence and multi-model database systems. Polyglot persistence employs a coordinator…

Databases · Computer Science 2025-08-06 Kyoseung Koo , Bogyeong Kim , Bongki Moon

Fine-tuning pre-trained models for downstream tasks is a widely adopted technique known for its adaptability and reliability across various domains. Despite its conceptual simplicity, fine-tuning entails several troublesome engineering…

Artificial Intelligence · Computer Science 2024-12-30 Chaeyun Jang , Hyungi Lee , Jungtaek Kim , Juho Lee

This paper introduces a continual learning approach named MagMax, which utilizes model merging to enable large pre-trained models to continuously learn from new data without forgetting previously acquired knowledge. Distinct from…

Machine Learning · Computer Science 2024-07-31 Daniel Marczak , Bartłomiej Twardowski , Tomasz Trzciński , Sebastian Cygert

There is quickly growing literature on machine-learned models that predict human driving trajectories in road traffic. These models focus their learning on low-dimensional error metrics, for example average distance between model-generated…