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While diffusion model fine-tuning offers a powerful approach for customizing pre-trained models to generate specific objects, it frequently suffers from overfitting when training samples are limited, compromising both generalization…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Vera Soboleva , Aibek Alanov , Andrey Kuznetsov , Konstantin Sobolev

Modern machine learning (ML) models have grown to a scale where training them on a single machine becomes impractical. As a result, there is a growing trend to leverage federated learning (FL) techniques to train large ML models in a…

Machine Learning · Computer Science 2024-12-20 Zhanbo Feng , Yuanjie Wang , Jie Li , Fan Yang , Jiong Lou , Tiebin Mi , Robert. C. Qiu , Zhenyu Liao

The aggressive densification of modern wireless networks necessitates judicious resource allocation to mitigate severe mutual interference. However, classical iterative algorithms remain computationally prohibitive for real-time…

Machine Learning · Computer Science 2026-04-10 Yucheng Sheng , Jiacheng Wang , Le Liang , Hao Ye , Shi Jin

Transfer learning via fine-tuning pre-trained transformer models has gained significant success in delivering state-of-the-art results across various NLP tasks. In the absence of centralized data, Federated Learning (FL) can benefit from…

Dispersion curves characterize the frequency dependence of the phase and the group velocities of propagating elastic waves. Many analytical and numerical techniques produce dispersion curves from physics-based models. However, it is often…

Data Analysis, Statistics and Probability · Physics 2021-10-26 V. V. N. Sriram Malladi , Mohammad I. Albakri , Manu Krishnan , Serkan Gugercin , Pablo A. Tarazaga

Radio frequency fingerprints (RFFs) enable secure wireless authentication but struggle in open-set scenarios with unknown devices and varying channels. Existing methods face challenges in generalization and incur high computational costs.…

Signal Processing · Electrical Eng. & Systems 2026-04-15 Mingxi Zhang , Renjie Xie , Jincheng Wang , Guyue Li , Wei Xu

Fine-grained radio map presents communication parameters of interest, e.g., received signal strength, at every point across a large geographical region. It can be leveraged to improve the efficiency of spectrum utilization for a large area,…

Signal Processing · Electrical Eng. & Systems 2025-07-09 Zhiyuan Liu , Shuhang Zhang , Qingyu Liu , Hongliang Zhang , Lingyang Song

Flow matching models have emerged as a powerful framework for realistic image generation by learning to reverse a corruption process that progressively adds Gaussian noise. However, because noise is injected in the latent domain, its impact…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Sucheng Ren , Qihang Yu , Ju He , Xiaohui Shen , Alan Yuille , Liang-Chieh Chen

Magnetic resonance imaging (MRI) plays a vital role in clinical diagnostics, yet it remains hindered by long acquisition times and motion artifacts. Multi-contrast MRI reconstruction has emerged as a promising direction by leveraging…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Xinming Fang , Chaoyan Huang , Juncheng Li , Jun Wang , Jun Shi , Guixu Zhang

Current controllable diffusion models typically rely on fixed architectures that modify intermediate activations to inject guidance conditioned on a new modality. This approach uses a static conditioning strategy for a dynamic, multi-stage…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Minkyoung Cho , Ruben Ohana , Christian Jacobsen , Adityan Jothi , Min-Hung Chen , Z. Morley Mao , Ethem Can

Protein inverse folding is a fundamental problem in bioinformatics, aiming to recover the amino acid sequences from a given protein backbone structure. Despite the success of existing methods, they struggle to fully capture the intricate…

Machine Learning · Computer Science 2024-12-13 Chenglin Wang , Yucheng Zhou , Zijie Zhai , Jianbing Shen , Kai Zhang

Diffusion models recently emerged as a powerful paradigm for recommender systems, offering state-of-the-art performance by modeling the generative process of user-item interactions. However, training such models from scratch is both…

Information Retrieval · Computer Science 2025-11-11 Yu Hou , Hua Li , Ha Young Kim , Won-Yong Shin

Recent advancements in Unet-based diffusion models, such as ControlNet and IP-Adapter, have introduced effective spatial and subject control mechanisms. However, the DiT (Diffusion Transformer) architecture still struggles with efficient…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yuxuan Zhang , Yirui Yuan , Yiren Song , Haofan Wang , Jiaming Liu

Denoising-based diffusion transformers, despite their strong generation performance, suffer from inefficient training convergence. Existing methods addressing this issue, such as REPA (relying on external representation encoders) or SRA…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Mengmeng Wang , Dengyang Jiang , Liuzhuozheng Li , Yucheng Lin , Guojiang Shen , Xiangjie Kong , Yong Liu , Guang Dai , Jingdong Wang

In recent years, Large Language Models (LLMs) through Transformer structures have dominated many machine learning tasks, especially text processing. However, these models require massive amounts of data for training and induce high resource…

Machine Learning · Computer Science 2025-04-17 Kilian Pfeiffer , Mohamed Aboelenien Ahmed , Ramin Khalili , Jörg Henkel

Parameter-efficient fine-tuning (PEFT) has emerged as a powerful paradigm for adapting large-scale pre-trained models to downstream tasks with minimal additional parameters. Among PEFT methods, Low-Rank Adaptation (LoRA) stands out for its…

Machine Learning · Computer Science 2026-02-03 Nghiem T. Diep , Dung Le , Tuan Truong , Tan Dinh , Huy Nguyen , Nhat Ho

Reinforcement Learning (RL) has recently been incorporated into diffusion models, e.g., tasks such as text-to-image. However, directly applying existing RL methods to diffusion-based image restoration models is suboptimal, as the objective…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Xiaogang Xu , Ruihang Chu , Jian Wang , Kun Zhou , Wenjie Shu , Harry Yang , Ser-Nam Lim , Hao Chen , Liang Lin

Diffusion models have emerged as powerful tools for generative modeling, demonstrating exceptional capability in capturing target data distributions from large datasets. However, fine-tuning these massive models for specific downstream…

Machine Learning · Computer Science 2025-09-01 Yinbin Han , Meisam Razaviyayn , Renyuan Xu

Diffusion planning has been recognized as an effective decision-making paradigm in various domains. The capability of generating high-quality long-horizon trajectories makes it a promising research direction. However, existing diffusion…

Artificial Intelligence · Computer Science 2024-10-28 Zibin Dong , Jianye Hao , Yifu Yuan , Fei Ni , Yitian Wang , Pengyi Li , Yan Zheng

Federated Learning has recently been utilized to collaboratively fine-tune foundation models across multiple clients. Notably, federated low-rank adaptation LoRA-based fine-tuning methods have recently gained attention, which allows clients…

Machine Learning · Computer Science 2025-06-17 Zikai Zhang , Ping Liu , Jiahao Xu , Rui Hu