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Related papers: Expert Merging: Model Merging with Unsupervised Ex…

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The proliferation of pre-trained models has given rise to a wide array of specialised, fine-tuned models. Model merging aims to merge the distinct capabilities of these specialised models into a unified model, requiring minimal or even no…

Machine Learning · Computer Science 2025-12-23 Yayuan Li , Jian Zhang , Jintao Guo , Zihan Cheng , Lei Qi , Yinghuan Shi , Yang Gao

We study model merging as a practical alternative to conventional adaptation strategies for code-mixed NLP. Starting from a multilingual base model, we: (i) perform continued pre-training (CPT) on unlabeled code-mixed text to obtain an…

Computation and Language · Computer Science 2025-10-24 Prashant Kodali , Vaishnavi Shivkumar , Swarang Joshi , Monojit Choudhary , Ponnurangam Kumaraguru , Manish Shrivastava

Aligning large language models (LLMs) through supervised fine-tuning is essential for tailoring them to specific applications. Recent studies suggest that alignment primarily adjusts a model's presentation style rather than its foundational…

Computation and Language · Computer Science 2025-04-09 Guangyuan Shi , Zexin Lu , Xiaoyu Dong , Wenlong Zhang , Xuanyu Zhang , Yujie Feng , Xiao-Ming Wu

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

Fine-tuning pretrained models has become a standard pathway to achieve state-of-the-art performance across a wide range of domains, leading to a proliferation of task-specific model variants. As the number of such specialized models…

Machine Learning · Computer Science 2026-02-26 Pietro Buzzega , Riccardo Salami , Angelo Porrello , Simone Calderara

Mixture of experts method is a neural network based ensemble learning that has great ability to improve the overall classification accuracy. This method is based on the divide and conquer principle, in which the problem space is divided…

Machine Learning · Computer Science 2021-05-26 Laleh Armi , Elham Abbasi , Jamal Zarepour-Ahmadabadi

We propose a method to teach multiple large language models (LLM) to collaborate by interleaving their generations at the token level. We model the decision of which LLM generates the next token as a latent variable. By optimizing the…

Computation and Language · Computer Science 2024-08-28 Shannon Zejiang Shen , Hunter Lang , Bailin Wang , Yoon Kim , David Sontag

Machine learning (ML) models have been quite successful in predicting outcomes in many applications. However, in some cases, domain experts might have a judgment about the expected outcome that might conflict with the prediction of ML…

Machine Learning · Computer Science 2023-05-02 Hogun Park , Aly Megahed , Peifeng Yin , Yuya Ong , Pravar Mahajan , Pei Guo

Training convolutional networks (CNN's) that fit on a single GPU with minibatch stochastic gradient descent has become effective in practice. However, there is still no effective method for training large CNN's that do not fit in the memory…

Computer Vision and Pattern Recognition · Computer Science 2017-04-24 Sam Gross , Marc'Aurelio Ranzato , Arthur Szlam

Large language model (LLM) merging has become a key technique in modern LLM development pipelines, enabling the integration of multiple task- or domain-specific expert models without retraining. However, as the number of experts grows,…

Databases · Computer Science 2026-02-17 Yuanyi Wang , Yanggan Gu , Zihao Wang , Kunxi Li , Yifan Yang , Zhaoyi Yan , Congkai Xie , Jianmin Wu , Hongxia Yang

Model merging has achieved significant success, with numerous innovative methods proposed to enhance capabilities by combining multiple models. However, challenges persist due to the lack of a unified framework for classification and…

Machine Learning · Computer Science 2025-03-13 Wei Ruan , Tianze Yang , Yifan Zhou , Tianming Liu , Jin Lu

Model merging is a promising lightweight model empowerment technique that does not rely on expensive computing devices (e.g., GPUs) or require the collection of specific training data. Instead, it involves editing different upstream model…

Cryptography and Security · Computer Science 2024-11-05 Tianshuo Cong , Delong Ran , Zesen Liu , Xinlei He , Jinyuan Liu , Yichen Gong , Qi Li , Anyu Wang , Xiaoyun Wang

While large language models (LLMs) excel on generation tasks, their decoder-only architecture often limits their potential as embedding models if no further representation finetuning is applied. Does this contradict their claim of…

Computation and Language · Computer Science 2024-10-17 Ziyue Li , Tianyi Zhou

Inspired by the exceptional general intelligence of Large Language Models (LLMs), researchers have begun to explore their application in pioneering the next generation of recommender systems - systems that are conversational, explainable,…

Information Retrieval · Computer Science 2024-08-06 Wensheng Lu , Jianxun Lian , Wei Zhang , Guanghua Li , Mingyang Zhou , Hao Liao , Xing Xie

Multimodal large language models (MLLMs) achieve strong performance by jointly processing inputs from multiple modalities, such as vision, audio, and language. However, building such models or extending them to new modalities often requires…

Machine Learning · Computer Science 2026-03-24 Md Kaykobad Reza , Ameya Patil , Edward Ayrapetian , M. Salman Asif

The emergence of large language models (LLMs) has significantly transformed natural language processing (NLP), enabling more generalized models to perform various tasks with minimal training. However, traditional sentiment analysis methods,…

Computation and Language · Computer Science 2026-01-13 Keito Inoshita , Xiaokang Zhou , Akira Kawai

We focus on the problem of fusing two or more heterogeneous large language models (LLMs) to leverage their complementary strengths. One of the challenges of model fusion is high computational load, specifically in fine-tuning or aligning…

Computation and Language · Computer Science 2025-06-10 Cong Liu , Xiaojun Quan , Yan Pan , Liang Lin , Weigang Wu , Xu Chen

Recently, model merging methods have demonstrated powerful strengths in combining abilities on various tasks from multiple Large Language Models (LLMs). While previous model merging methods mainly focus on merging homogeneous models with…

Computation and Language · Computer Science 2026-04-23 Yiyang Du , Xiaochen Wang , Chi Chen , Jiabo Ye , Yiru Wang , Peng Li , Ming Yan , Ji Zhang , Fei Huang , Zhifang Sui , Maosong Sun , Yang Liu

Continually expanding new languages for existing large language models (LLMs) is a promising yet challenging approach to building powerful multilingual LLMs. The biggest challenge is to make the model continuously learn new languages while…

Computation and Language · Computer Science 2025-05-29 Xue Zhang , Yunlong Liang , Fandong Meng , Songming Zhang , Yufeng Chen , Jinan Xu , Jie Zhou

We introduce LM-Lexicon, an innovative definition modeling approach that incorporates data clustering, semantic expert learning, and model merging using a sparse mixture-of-experts architecture. By decomposing the definition modeling task…

Computation and Language · Computer Science 2026-02-17 Yang Liu , Jiaye Yang , Weikang Li , Jiahui Liang , Yang Li , Lingyong Yan