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Related papers: Can Heterogeneous Language Models Be Fused?

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We study the problem of multilingual masked language modeling, i.e. the training of a single model on concatenated text from multiple languages, and present a detailed study of several factors that influence why these models are so…

Computation and Language · Computer Science 2020-05-11 Shijie Wu , Alexis Conneau , Haoran Li , Luke Zettlemoyer , Veselin Stoyanov

The recent popularity of text-to-image diffusion models (DM) can largely be attributed to the intuitive interface they provide to users. The intended generation can be expressed in natural language, with the model producing faithful…

Model merging has emerged as a promising technique for combining multiple fine-tuned models into a single multitask model without retraining. However, the factors that determine whether merging will succeed or fail remain poorly understood.…

Computation and Language · Computer Science 2026-01-13 Adir Rahamim , Asaf Yehudai , Boaz Carmeli , Leshem Choshen , Yosi Mass , Yonatan Belinkov

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

Model merging aims to combine multiple expert models into a more capable single model, offering benefits such as reduced storage and serving costs, improved generalization, and support for decentralized model development. Despite its…

Machine Learning · Computer Science 2024-10-07 Prateek Yadav , Tu Vu , Jonathan Lai , Alexandra Chronopoulou , Manaal Faruqui , Mohit Bansal , Tsendsuren Munkhdalai

Transfer learning has become a powerful tool to initialize deep learning models to achieve faster convergence and higher performance. This is especially useful in the medical imaging analysis domain, where data scarcity limits possible…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Ibrahim Almakky , Santosh Sanjeev , Anees Ur Rehman Hashmi , Mohammad Areeb Qazi , Hu Wang , Mohammad Yaqub

The growing demand for large language models (LLMs) with tunable reasoning capabilities in many real-world applications highlights a critical need for methods that can efficiently produce a spectrum of models balancing reasoning depth and…

Artificial Intelligence · Computer Science 2025-09-30 Xiaochong Lan , Yu Zheng , Shiteng Cao , Yong Li

In cross-border e-commerce, search relevance modeling faces the dual challenge of extreme linguistic diversity and fine-grained semantic nuances. Existing approaches typically rely on scaling up a single monolithic Large Language Model…

Information Retrieval · Computer Science 2026-02-04 Ye Liu , Xu Chen , Wuji Chen , Mang Li

Model merging has emerged as an efficient method to combine multiple single-task fine-tuned models. The merged model can enjoy multi-task capabilities without expensive training. While promising, merging into a single model often suffers…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Akash Dhasade , Divyansh Jhunjhunwala , Milos Vujasinovic , Gauri Joshi , Anne-Marie Kermarrec

Speech Foundation Models have gained significant attention recently. Prior works have shown that the fusion of representations from multiple layers of the same model or the fusion of multiple models can improve performance on downstream…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-12 Yi-Jen Shih , David Harwath

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

Merging finetuned Large Language Models (LLMs) has become increasingly important for integrating diverse capabilities into a single unified model. However, prevailing model merging methods rely on linear arithmetic in Euclidean space, which…

Machine Learning · Computer Science 2026-02-06 Sihan Yang , Kexuan Shi , Weiyang Liu

Training AI models that generalize across tasks and domains has long been among the open problems driving AI research. The emergence of Foundation Models made it easier to obtain expert models for a given task, but the heterogeneity of data…

Machine Learning · Computer Science 2024-05-10 Hongyi Wang , Felipe Maia Polo , Yuekai Sun , Souvik Kundu , Eric Xing , Mikhail Yurochkin

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

Despite the remarkable capabilities of Language Models (LMs) across diverse tasks, no single model consistently outperforms others, necessitating efficient methods to combine their strengths without expensive retraining. Existing model…

Computation and Language · Computer Science 2025-05-27 Jian Gu , Aldeida Aleti , Chunyang Chen , Hongyu Zhang

Federated learning (FL) enables edge-devices to collaboratively learn a model without disclosing their private data to a central aggregating server. Most existing FL algorithms require models of identical architecture to be deployed across…

Machine Learning · Computer Science 2022-04-28 Yae Jee Cho , Andre Manoel , Gauri Joshi , Robert Sim , Dimitrios Dimitriadis

Model fusion research aims to aggregate the knowledge of multiple individual models to enhance performance by combining their weights. In this work, we study the inverse problem: investigating whether model fusion can be used to reduce…

Computation and Language · Computer Science 2024-10-11 Kerem Zaman , Leshem Choshen , Shashank Srivastava

Model merging provides a way of cheaply combining individual models to produce a model that inherits each individual's capabilities. While some merging methods can approach the performance of multitask training, they are often heuristically…

Machine Learning · Computer Science 2026-04-03 Marawan Gamal Abdel Hameed , Derek Tam , Pascal Jr Tikeng Notsawo , Colin Raffel , Guillaume Rabusseau

Model merging provides a scalable alternative to multi-task training by combining specialized finetuned models through parameter arithmetic, enabling efficient deployment without the need for joint training or access to all task data. While…

Machine Learning · Computer Science 2025-10-21 Yifei He , Siqi Zeng , Yuzheng Hu , Rui Yang , Tong Zhang , Han Zhao

With the rapid growth of deep learning, there is an increasing availability of open-source models for various tasks. However, single fine-tuned models often fall short of meeting the diverse needs of users. Model merging has thus emerged as…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Shenghe Zheng , Hongzhi Wang