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Efficiently merging several models fine-tuned for different tasks, but stemming from the same pretrained base model, is of great practical interest. Despite extensive prior work, most evaluations of model merging in computer vision are…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Pau de Jorge , César Roberto de Souza , Björn Michele , Mert Bülent Sarıyıldız , Philippe Weinzaepfel , Florent Perronnin , Diane Larlus , Yannis Kalantidis

Task embedding, a meta-learning technique that captures task-specific information, has gained popularity, especially in areas such as multi-task learning, model editing, and interpretability. However, it faces challenges with the emergence…

Computation and Language · Computer Science 2024-07-15 Xinyu Wang , Hainiu Xu , Lin Gui , Yulan He

Large language models (LLMs) achieve strong capabilities by scaling model capacity and training data, yet many real-world deployments rely on smaller models trained or adapted from low-resource data. This gap motivates the need for…

Computation and Language · Computer Science 2026-02-24 Chenhang Cui , Binyun Yang , Fei Shen , Yuxin Chen , Jingnan Zheng , Xiang Wang , An Zhang , Tat-Seng Chua

Multi-task learning (MTL) is to learn one single model that performs multiple tasks for achieving good performance on all tasks and lower cost on computation. Learning such a model requires to jointly optimize losses of a set of tasks with…

Computer Vision and Pattern Recognition · Computer Science 2020-09-25 Wei-Hong Li , Hakan Bilen

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

Federated Learning (FL) traditionally assumes homogeneous client tasks; however, in real-world scenarios, clients often specialize in diverse tasks, introducing task heterogeneity. To address this challenge, Many-Task FL (MaT-FL) has…

Machine Learning · Computer Science 2025-07-10 Vasileios Tsouvalas , Tanir Ozcelebi , Nirvana Meratnia

Multi-task learning solves multiple correlated tasks. However, conflicts may exist between them. In such circumstances, a single solution can rarely optimize all the tasks, leading to performance trade-offs. To arrive at a set of optimized…

Artificial Intelligence · Computer Science 2024-03-26 Lu Bai , Abhishek Gupta , Yew-Soon Ong

Large language models (LLMs) demonstrate strong task-specific capabilities through fine-tuning, but merging multiple fine-tuned models often leads to degraded performance due to overlapping instruction-following components. Task Arithmetic…

Computation and Language · Computer Science 2025-02-28 Yan-Lun Chen , Yi-Ru Wei , Chia-Yi Hsu , Chia-Mu Yu , Chun-Ying Huang , Ying-Dar Lin , Yu-Sung Wu , Wei-Bin Lee

Transfer and multi-task learning have traditionally focused on either a single source-target pair or very few, similar tasks. Ideally, the linguistic levels of morphology, syntax and semantics would benefit each other by being trained in a…

Computation and Language · Computer Science 2017-07-25 Kazuma Hashimoto , Caiming Xiong , Yoshimasa Tsuruoka , Richard Socher

While fine-tuning pretrained models has become common practice, these models often underperform outside their specific domains. Recently developed model merging techniques enable the direct integration of multiple models, each fine-tuned…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Guodong Du , Junlin Lee , Jing Li , Runhua Jiang , Yifei Guo , Shuyang Yu , Hanting Liu , Sim Kuan Goh , Ho-Kin Tang , Daojing He , Min Zhang

As an effective learning paradigm against insufficient training samples, Multi-Task Learning (MTL) encourages knowledge sharing across multiple related tasks so as to improve the overall performance. In MTL, a major challenge springs from…

Machine Learning · Computer Science 2020-04-30 Zhiyong Yang , Qianqian Xu , Xiaochun Cao , Qingming Huang

Multiple object tracking (MOT) is a significant task in achieving autonomous driving. Traditional works attempt to complete this task, either based on point clouds (PC) collected by LiDAR, or based on images captured from cameras. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Guangming Wang , Chensheng Peng , Jinpeng Zhang , Hesheng Wang

There is a growing interest in training domain-expert LLMs that excel in specific technical fields compared to their general-purpose instruction-tuned counterparts. However, these expert models often experience a loss in their safety…

Artificial Intelligence · Computer Science 2025-06-02 Megh Thakkar , Quentin Fournier , Matthew Riemer , Pin-Yu Chen , Amal Zouaq , Payel Das , Sarath Chandar

Multi-task model merging offers an efficient solution for integrating knowledge from multiple fine-tuned models, mitigating the significant computational and storage demands associated with multi-task training. As a key technique in this…

Machine Learning · Computer Science 2025-01-28 Wenju Sun , Qingyong Li , Wen Wang , Yangli-ao Geng , Boyang Li

Fine-tuning vision-language models (VLMs) such as CLIP often leads to catastrophic forgetting of pretrained knowledge. Prior work primarily aims to mitigate forgetting during adaptation; however, forgetting often remains inevitable during…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Wenqing Wang , Da Li , Xiatian Zhu , Josef Kittler

Recent methods aim to merge neural networks (NNs) with identical architectures trained on different tasks into a single multi-task model. While most works focus on the simpler setup of merging NNs initialized from a common pre-trained…

Machine Learning · Computer Science 2025-08-18 Edan Kinderman , Itay Hubara , Haggai Maron , Daniel Soudry

Recent works suggest that transformer models are capable of multi-tasking on diverse NLP tasks and adapting to new tasks efficiently. However, the potential of these multi-task models may be limited as they use the same set of parameters…

Computation and Language · Computer Science 2022-11-23 Qinyuan Ye , Juan Zha , Xiang Ren

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

Recently, federated learning (FL) has emerged as a popular technique for edge AI to mine valuable knowledge in edge computing (EC) systems. To mitigate the computing/communication burden on resource-constrained workers and protect model…

Machine Learning · Computer Science 2024-07-23 Yunming Liao , Yang Xu , Hongli Xu , Lun Wang , Zhiwei Yao , Chunming Qiao

While transfer learning is an effective strategy, it often overlooks the opportunity to leverage knowledge from numerous available models online. Addressing this multi-source transfer learning problem is a promising path to boost…

Machine Learning · Computer Science 2026-04-24 Marcin Osial , Bartosz Wójcik , Bartosz Zieliński , Sebastian Cygert