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Related papers: What Matters for Model Merging at Scale?

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Dataset scaling, also known as normalization, is an essential preprocessing step in a machine learning pipeline. It is aimed at adjusting attributes scales in a way that they all vary within the same range. This transformation is known to…

Machine Learning · Computer Science 2022-12-26 Lucas B. V. de Amorim , George D. C. Cavalcanti , Rafael M. O. Cruz

The availability of performant pre-trained models has led to a proliferation of fine-tuned expert models that are specialized to a particular domain or task. Model MoErging methods aim to recycle expert models to create an aggregate system…

Model merging offers a training-free alternative to multi-task learning by combining independently fine-tuned models into a unified one without access to raw data. However, existing approaches often rely on heuristics to determine the…

Machine Learning · Computer Science 2025-05-23 Chongjie Si , Kangtao Lv , Jingjing Jiang , Yadao Wang , Yongwei Wang , Xiaokang Yang , Wenbo Su , Bo Zheng , Wei Shen

This paper investigates model merging, a technique for deriving Markov models from text or speech corpora. Models are derived by starting with a large and specific model and by successively combining states to build smaller and more general…

cmp-lg · Computer Science 2008-02-03 Thorsten Brants

Although feature models are widely used in practice, for example, representing variability in software product lines, their integration is still a challenge. Many integration techniques have been proposed, although none of these have proven…

Software Engineering · Computer Science 2018-10-01 Vinicius Bischoff

Modern deep learning is increasingly characterized by the use of open-weight foundation models that can be fine-tuned on specialized datasets. This has led to a proliferation of expert models and adapters, often shared via platforms like…

Machine Learning · Computer Science 2025-06-18 Stefan Horoi , Guy Wolf , Eugene Belilovsky , Gintare Karolina Dziugaite

The democratization of machine learning systems has made the process of fine-tuning accessible to practitioners, leading to a wide range of open-source models fine-tuned on specialized tasks and datasets. Recent work has proposed to merge…

Machine Learning · Computer Science 2025-03-03 Anshul Nasery , Jonathan Hayase , Pang Wei Koh , Sewoong Oh

Model merging, a method that combines the parameters and embeddings of multiple fine-tuned large language models (LLMs), offers a promising approach to enhance model performance across various tasks while maintaining computational…

Computation and Language · Computer Science 2025-11-10 Amin Heyrani Nobari , Kaveh Alim , Ali ArjomandBigdeli , Akash Srivastava , Faez Ahmed , Navid Azizan

The remarkable success of Large Language Models (LLMs) has ushered natural language processing (NLP) research into a new era. Despite their diverse capabilities, LLMs trained on different corpora exhibit varying strengths and weaknesses,…

Computation and Language · Computer Science 2024-07-09 Jinliang Lu , Ziliang Pang , Min Xiao , Yaochen Zhu , Rui Xia , Jiajun Zhang

The rapid development of AI systems has been greatly influenced by the emergence of foundation models. A common approach for targeted problems involves fine-tuning these pre-trained foundation models for specific target tasks, resulting in…

Machine Learning · Computer Science 2024-08-13 MohammadReza Davari , Eugene Belilovsky

Mixtures of experts models provide a framework in which covariates may be included in mixture models. This is achieved by modelling the parameters of the mixture model as functions of the concomitant covariates. Given their mixture model…

Methodology · Statistics 2018-06-22 Isobel Claire Gormley , Sylvia Frühwirth-Schnatter

With time, machine learning models have increased in their scope, functionality and size. Consequently, the increased functionality and size of such models requires high-end hardware to both train and provide inference after the fact. This…

Machine Learning · Computer Science 2021-09-07 Arhum Ishtiaq , Sara Mahmood , Maheen Anees , Neha Mumtaz

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

Model merging has recently emerged as a lightweight alternative to ensembling, combining multiple fine-tuned models into a single set of parameters with no additional training overhead. Yet, existing merging methods fall short of matching…

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…

Computation and Language · Computer Science 2025-02-10 Mingxu Tao , Chen Zhang , Quzhe Huang , Tianyao Ma , Songfang Huang , Dongyan Zhao , Yansong Feng

Recent work has identified simple empirical scaling laws for language models, linking compute budget, dataset size, model size, and autoregressive modeling loss. The validity of these simple power laws across orders of magnitude in model…

Machine Learning · Statistics 2021-09-27 Amélie Chatelain , Amine Djeghri , Daniel Hesslow , Julien Launay , Iacopo Poli

Task Arithmetic is a model merging technique that enables the combination of multiple models' capabilities into a single model through simple arithmetic in the weight space, without the need for additional fine-tuning or access to the…

Machine Learning · Computer Science 2025-07-14 Zhixu Silvia Tao , Ian Mason , Sanjeev Kulkarni , Xavier Boix

Deep structured-prediction energy-based models combine the expressive power of learned representations and the ability of embedding knowledge about the task at hand into the system. A common way to learn parameters of such models consists…

Machine Learning · Computer Science 2019-03-01 Aleksandr Shevchenko , Anton Osokin

Recent research has increasingly focused on reconciling the reasoning capabilities of System 2 with the efficiency of System 1. While existing training-based and prompt-based approaches face significant challenges in terms of efficiency and…

Computation and Language · Computer Science 2025-11-17 Yuxuan Yao , Shuqi Liu , Zehua Liu , Qintong Li , Mingyang Liu , Xiongwei Han , Zhijiang Guo , Han Wu , Linqi Song

Model merging based on task vectors, i.e., the parameter differences between fine-tuned models and a shared base model, provides an efficient way to integrate multiple task-specific models into a multitask model without retraining. Recent…

Machine Learning · Computer Science 2025-03-05 Zongzhen Yang , Binhang Qi , Hailong Sun , Wenrui Long , Ruobing Zhao , Xiang Gao