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相关论文: TC-LoRA: Temporally Modulated Conditional LoRA for…

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We present a mutually aligned diffusion framework for cross-modal biomechanical motion generation, guided by a dynamical systems perspective. By treating each modality, e.g., observed joint angles ($X$) and ground reaction forces ($Y$), as…

机器学习 · 计算机科学 2025-03-18 Sharmita Dey , Sarath Ravindran Nair

Classifier-Free Guidance (CFG) is a widely used mechanism for controlling diffusion-based generative models, yet its guidance scale is typically treated as a fixed hyperparameter throughout generation. This static design yields a suboptimal…

计算与语言 · 计算机科学 2026-05-11 Fan Zhou , Tim Van de Cruys

The conditional diffusion model (CDM) enhances the standard diffusion model by providing more control, improving the quality and relevance of the outputs, and making the model adaptable to a wider range of complex tasks. However, inaccurate…

机器学习 · 计算机科学 2024-08-07 Weifeng Xu , Xiang Zhu , Xiaoyong Li

Conditional diffusion models serve as the foundation of modern image synthesis and find extensive application in fields like computational biology and reinforcement learning. In these applications, conditional diffusion models incorporate…

机器学习 · 计算机科学 2024-03-19 Hengyu Fu , Zhuoran Yang , Mengdi Wang , Minshuo Chen

Early detection of lung cancer in chest radiographs (CXRs) is crucial for improving patient outcomes, yet nodule detection remains challenging due to their subtle appearance and variability in radiological characteristics like size,…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Aryan Goyal , Shreshtha Singh , Ashish Mittal , Manoj Tadepalli , Piyush Kumar , Preetham Putha

Accurate modeling of robot dynamics is essential for model-based control, yet remains challenging under distributional shifts and real-time constraints. In this work, we formulate system identification as an in-context meta-learning problem…

机器学习 · 计算机科学 2026-04-21 Angelo Moroncelli , Matteo Rufolo , Gunes Cagin Aydin , Asad Ali Shahid , Loris Roveda

Low-Rank Adaptation (LoRA) is a widely adopted parameter-efficient method for fine-tuning Large Langauge Models. It updates the weight matrix as $W=W_0+sBA$, where $W_0$ is the original frozen weight, $s$ is a scaling factor and $A$,$B$ are…

机器学习 · 计算机科学 2026-03-06 Yize Wu , Ke Gao , Ling Li , Yanjun Wu

Parameter-efficient fine-tuning methods such as LoRA enable efficient adaptation of large pretrained models but often fall short of full fine-tuning performance. Existing approaches focus on aligning parameter updates, which only indirectly…

机器学习 · 计算机科学 2026-04-01 Frédéric Zheng , Alexandre Proutière

Fine-tuning pre-trained robot policies with reinforcement learning (RL) often inherits the bottlenecks introduced by pre-training with behavioral cloning (BC), which produces narrow action distributions that lack the coverage necessary for…

机器人学 · 计算机科学 2026-05-13 Matthew M. Hong , Jesse Zhang , Anusha Nagabandi , Abhishek Gupta

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…

Denoising diffusion models have emerged as the go-to generative framework for solving inverse problems in imaging. A critical concern regarding these models is their performance on out-of-distribution tasks, which remains an under-explored…

计算机视觉与模式识别 · 计算机科学 2025-01-29 Riccardo Barbano , Alexander Denker , Hyungjin Chung , Tae Hoon Roh , Simon Arridge , Peter Maass , Bangti Jin , Jong Chul Ye

Recent advances in diffusion models have shown remarkable potential in the conditional generation of novel molecules. These models can be guided in two ways: (i) explicitly, through additional features representing the condition, or (ii)…

机器学习 · 计算机科学 2025-03-12 Yuchen Shen , Chenhao Zhang , Sijie Fu , Chenghui Zhou , Newell Washburn , Barnabás Póczos

Achieving semantic alignment across diverse video generation conditions remains a significant challenge. Methods that rely on explicit structural guidance often enforce rigid spatial constraints that limit semantic flexibility, whereas…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Zexi Wu , Baolu Li , Jing Dai , Yiming Zhang , Yue Ma , Qinghe Wang , Xu Jia , Hongming Xu

Parameter-efficient fine-tuning enables fast personalization of text-to-image diffusion models, but composing multiple custom concepts remains challenging due to representation interference. Existing modular methods either rely on expensive…

机器学习 · 计算机科学 2026-05-22 Javad Parsa , Enis Simsar , Amir Joudaki , Thomas Hofmann , André M. H. Teixeira

Drawing upon recent advances in language model alignment, we formulate offline Reinforcement Learning as a two-stage optimization problem: First pretraining expressive generative policies on reward-free behavior datasets, then fine-tuning…

机器学习 · 计算机科学 2024-10-31 Huayu Chen , Kaiwen Zheng , Hang Su , Jun Zhu

The ability to generate a diverse and plausible distribution of future trajectories is a critical capability for autonomous vehicle planning systems. While recent generative models have shown promise, achieving high fidelity, computational…

机器人学 · 计算机科学 2025-09-09 Antonio Guillen-Perez

In layout-to-image (L2I) synthesis, controlled complex scenes are generated from coarse information like bounding boxes. Such a task is exciting to many downstream applications because the input layouts offer strong guidance to the…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Ruyu Wang , Xuefeng Hou , Sabrina Schmedding , Marco F. Huber

We propose Diffusion Model Predictive Control (D-MPC), a novel MPC approach that learns a multi-step action proposal and a multi-step dynamics model, both using diffusion models, and combines them for use in online MPC. On the popular D4RL…

With the growing availability of open-sourced adapters trained on the same diffusion backbone for diverse scenes and objects, combining these pretrained weights enables low-cost customized generation. However, most existing model merging…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Shenghe Zheng , Minyu Zhang , Tianhao Liu , Hongzhi Wang

Limited visibility of distribution network power flows at the low voltage level presents challenges to both distribution network operators from a planning perspective and distribution system operators from a congestion management…

系统与控制 · 电气工程与系统科学 2026-02-11 Alistair Brash , Junyi Lu , Bruce Stephen , Blair Brown , Robert Atkinson , Craig Michie , Fraser MacIntyre , Christos Tachtatzis