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Dynamic resource allocation in mobile wireless networks involves complex, time-varying optimization problems, motivating the adoption of deep reinforcement learning (DRL). However, most existing works rely on pre-trained policies,…

Machine Learning · Computer Science 2025-02-12 Xinren Zhang , Jiadong Yu

Reinforcement learning (RL) algorithms have been used recently to align diffusion models with downstream objectives such as aesthetic quality and text-image consistency by fine-tuning them to maximize a single reward function under a fixed…

Artificial Intelligence · Computer Science 2026-03-13 Min Cheng , Fatemeh Doudi , Dileep Kalathil , Mohammad Ghavamzadeh , Panganamala R. Kumar

Diffusion models have been shown to implicitly generate visual content autoregressively in the frequency domain, where low-frequency components are generated earlier in the denoising process while high-frequency details emerge only in later…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Howard Xiao , Brian Chao , Lior Yariv , Gordon Wetzstein

Diffusion models currently dominate the field of data-driven image synthesis with their unparalleled scaling to large datasets. In this paper, we identify and rectify several causes for uneven and ineffective training in the popular ADM…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Tero Karras , Miika Aittala , Jaakko Lehtinen , Janne Hellsten , Timo Aila , Samuli Laine

Time-series forecasting is crucial for numerous real-world applications including weather prediction and financial market modeling. While temporal-domain methods remain prevalent, frequency-domain approaches can effectively capture…

Machine Learning · Computer Science 2025-08-05 Zhixuan Li , Naipeng Chen , Seonghwa Choi , Sanghoon Lee , Weisi Lin

The position-fluid antenna (PFA) architecture has become one of the appealing technologies to support ubiquitous connectivity demand in next-generation wireless systems. Specifically, allowing the antenna to adjust its physical position to…

Information Theory · Computer Science 2024-09-04 Heyin Shen , Chong Han , Hao Liu , Tao Yang

The discovery of inorganic crystal structures with targeted properties is a significant challenge in materials science. Generative models, especially state-of-the-art diffusion models, offer the promise of modeling complex data…

Recent advancements in diffusion frameworks have significantly enhanced video editing, achieving high fidelity and strong alignment with textual prompts. However, conventional approaches using image diffusion models fall short in handling…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Yixuan Zhu , Haolin Wang , Shilin Ma , Wenliang Zhao , Yansong Tang , Lei Chen , Jie Zhou

Low-rank adaptation (LoRA) is a natural method for finetuning in communication-constrained machine learning settings such as cross-device federated learning. Prior work that has studied LoRA in the context of federated learning has focused…

Machine Learning · Computer Science 2024-06-11 Kevin Kuo , Arian Raje , Kousik Rajesh , Virginia Smith

Diffusion models have emerged as the mainstream approach for visual generation. However, these models typically suffer from sample inefficiency and high training costs. Consequently, methods for efficient finetuning, inference and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Felix Krause , Timy Phan , Ming Gui , Stefan Andreas Baumann , Vincent Tao Hu , Björn Ommer

Remote sensing image change description represents an innovative multimodal task within the realm of remote sensing processing.This task not only facilitates the detection of alterations in surface conditions, but also provides…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Dongwei Sun , Jing Yao , Wu Xue , Changsheng Zhou , Pedram Ghamisi , Xiangyong Cao

Fine-tuning large language models is essential for task-specific adaptation, yet it remains computationally prohibitive. Parameter-Efficient Fine-Tuning (PEFT) methods have emerged as a solution, but current approaches typically ignore the…

Computation and Language · Computer Science 2025-12-01 Dayan Pan , Jingyuan Wang , Yilong Zhou , Jiawei Cheng , Pengyue Jia , Xiangyu Zhao

This paper presents a novel methodology of fine-tuning for large language models-dynamic LoRA. Building from the standard Low-Rank Adaptation framework, this methodology further adds dynamic adaptation mechanisms to improve efficiency and…

Computation and Language · Computer Science 2025-01-28 Xiaoxuan Liao , Chihang Wang , Shicheng Zhou , Jiacheng Hu , Hongye Zheng , Jia Gao

Pre-trained foundation models (FMs), with extensive number of neurons, are key to advancing next-generation intelligence services, where personalizing these models requires massive amount of task-specific data and computational resources.…

Systems and Control · Electrical Eng. & Systems 2024-07-04 Zixin Wang , Yong Zhou , Yuanming Shi , Khaled. B. Letaief

Domain Adaptation(DA) for dense prediction tasks is an important topic, which enhances the dense prediction model's performance when tested on its unseen domain. Recently, with the development of Diffusion-based Dense Prediction (DDP)…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Hang Xu , Jie Huang , Linjiang Huang , Dong Li , Yidi Liu , Feng Zhao

Deploying deep models in real-world scenarios remains challenging due to significant performance drops under distribution shifts between training and deployment environments. Test-Time Adaptation (TTA) has recently emerged as a promising…

Machine Learning · Computer Science 2025-12-01 Zixian Su , Jingwei Guo , Xi Yang , Qiufeng Wang , Kaizhu Huang

Wireless federated learning (WFL) suffers from heterogeneity prevailing in the data distributions, computing powers, and channel conditions of participating devices. This paper presents a new Federated Learning with Adjusted leaRning ratE…

Signal Processing · Electrical Eng. & Systems 2024-04-24 Bingnan Xiao , Jingjing Zhang , Wei Ni , Xin Wang

Operating Large Language Models (LLMs) on edge devices is increasingly challenged by limited communication bandwidth and strained computational and memory costs. Thus, cloud-assisted remote fine-tuning becomes indispensable. Nevertheless,…

Machine Learning · Computer Science 2025-07-16 Shiyi Yang , Xiaoxue Yu , Rongpeng Li , Jianhang Zhu , Zhifeng Zhao , Honggang Zhang

Recent studies have demonstrated that learning a meaningful internal representation can accelerate generative training. However, existing approaches necessitate to either introduce an off-the-shelf external representation task or rely on a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Dengyang Jiang , Mengmeng Wang , Liuzhuozheng Li , Lei Zhang , Haoyu Wang , Wei Wei , Guang Dai , Yanning Zhang , Jingdong Wang

High-resolution image synthesis with diffusion models often suffers from energy instabilities and guidance artifacts that degrade visual quality. We analyze the latent energy landscape during sampling and propose adaptive classifier-free…

Graphics · Computer Science 2025-12-12 Ankit Sanjyal
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