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Constructing valid and informative conformal prediction regions for multi-dimensional outputs remains a fundamental challenge. While conformal prediction provides finite-sample, distribution-free coverage guarantees, its practical…

机器学习 · 统计学 2026-05-11 Zhenhan Fang , Aixin Tan , Jian Huang

High-quality GPS trajectories are essential for location-based web services and smart city applications, including navigation, ride-sharing and delivery. However, due to low sampling rates and limited infrastructure coverage during data…

机器学习 · 计算机科学 2026-03-23 Jinming Wang , Hai Wang , Hongkai Wen , Geyong Min , Man Luo

Temporal causal representation learning methods assume that causal mechanisms switch instantaneously between discrete domains, yet real-world systems often exhibit continuous mechanism transitions. For example, a vehicle's dynamics evolve…

机器学习 · 计算机科学 2026-01-30 Shicheng Fan , Kun Zhang , Lu Cheng

3D medical image generation is essential for data augmentation and patient privacy, calling for reliable and efficient models suited for clinical practice. However, current methods suffer from limited anatomical fidelity, restricted axial…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Minye Shao , Xingyu Miao , Haoran Duan , Zeyu Wang , Jingkun Chen , Yawen Huang , Xian Wu , Jingjing Deng , Yang Long , Yefeng Zheng

Text-to-image diffusion models have shown unprecedented generative capability, but their ability to produce undesirable concepts (e.g.~pornographic content, sensitive identities, copyrighted styles) poses serious concerns for privacy,…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Finn Carter

Diffusion models are powerful tools for sampling from high-dimensional distributions by progressively transforming pure noise into structured data through a denoising process. When equipped with a guidance mechanism, these models can also…

机器学习 · 计算机科学 2026-05-04 Saeed Mohseni-Sehdeh , Walid Saad , Kei Sakaguchi , Tao Yu

Stroke order and velocity are helpful features in the fields of signature verification, handwriting recognition, and handwriting synthesis. Recovering these features from offline handwritten text is a challenging and well-studied problem.…

计算机视觉与模式识别 · 计算机科学 2021-05-26 Taylor Archibald , Mason Poggemann , Aaron Chan , Tony Martinez

Inverse problems arise in a multitude of applications, where the goal is to recover a clean signal from noisy and possibly (non)linear observations. The difficulty of a reconstruction problem depends on multiple factors, such as the ground…

图像与视频处理 · 电气工程与系统科学 2024-08-21 Zalan Fabian , Berk Tinaz , Mahdi Soltanolkotabi

Diffusion models have been demonstrated as powerful deep learning tools for image generation in CT reconstruction and restoration. Recently, diffusion posterior sampling, where a score-based diffusion prior is combined with a likelihood…

医学物理 · 物理学 2024-09-02 Shudong Li , Xiao Jiang , Matthew Tivnan , Grace J. Gang , Yuan Shen , J. Webster Stayman

Multi-fingered hands are emerging as powerful platforms for performing fine manipulation tasks, including tool use. However, environmental perturbations or execution errors can impede task performance, motivating the use of recovery…

机器人学 · 计算机科学 2025-10-09 Abhinav Kumar , Fan Yang , Sergio Aguilera Marinovic , Soshi Iba , Rana Soltani Zarrin , Dmitry Berenson

Recent advancements in diffusion and flow-matching models have demonstrated remarkable capabilities in high-fidelity image synthesis. A prominent line of research involves reward-guided guidance, which steers the generation process during…

计算机视觉与模式识别 · 计算机科学 2026-05-01 Jinho Chang , Jaemin Kim , Jong Chul Ye

Diffusion models have emerged as powerful learned priors for solving inverse problems. However, current iterative solving approaches which alternate between diffusion sampling and data consistency steps typically require hundreds or…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Minwoo Kim , Hongki Lim

We introduce a method for generating realistic pedestrian trajectories and full-body animations that can be controlled to meet user-defined goals. We draw on recent advances in guided diffusion modeling to achieve test-time controllability…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Davis Rempe , Zhengyi Luo , Xue Bin Peng , Ye Yuan , Kris Kitani , Karsten Kreis , Sanja Fidler , Or Litany

Diffusion models have recently gained traction as a powerful class of deep generative priors, excelling in a wide range of image restoration tasks due to their exceptional ability to model data distributions. To solve image restoration…

图像与视频处理 · 电气工程与系统科学 2025-06-10 Xiang Li , Soo Min Kwon , Shijun Liang , Ismail R. Alkhouri , Saiprasad Ravishankar , Qing Qu

Diffusion models have demonstrated significant promise in various generative tasks; however, they often struggle to satisfy challenging constraints. Our approach addresses this limitation by rethinking training-free loss-guided diffusion…

机器学习 · 计算机科学 2024-11-19 William Huang , Yifeng Jiang , Tom Van Wouwe , C. Karen Liu

Reliable mathematical and scientific reasoning remains an open challenge for large vision-language models. Standard final-answer evaluation often masks reasoning errors, allowing silent failures to persist. To address this gap, we introduce…

人工智能 · 计算机科学 2025-12-15 Shima Imani , Seungwhan Moon , Lambert Mathias , Lu Zhang , Babak Damavandi

Inverse problems have many applications in science and engineering. In Computer vision, several image restoration tasks such as inpainting, deblurring, and super-resolution can be formally modeled as inverse problems. Recently, methods have…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Sai Bharath Chandra Gutha , Ricardo Vinuesa , Hossein Azizpour

Diffusion models have emerged as powerful priors for solving inverse problems in computed tomography (CT). In certain applications, such as neutron CT, it can be expensive to collect large amounts of measurements even for a single scan,…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Timofey Efimov , Singanallur Venkatakrishnan , Maliha Hossain , Haley Duba-Sullivan , Amirkoushyar Ziabari

Image restoration aims to recover high-quality images from degraded observations. When the degradation process is known, the recovery problem can be formulated as an inverse problem, and in a Bayesian context, the goal is to sample a clean…

图像与视频处理 · 电气工程与系统科学 2025-10-13 Darshan Thaker , Abhishek Goyal , René Vidal

Diffusion bridge models have shown great promise in image restoration by explicitly connecting clean and degraded image distributions. However, they often rely on complex and high-cost trajectories, which limit both sampling efficiency and…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Jinhui Hou , Zhiyu Zhu , Junhui Hou
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