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Generating synthetic datasets that accurately reflect real-world observational data is critical for evaluating causal estimators, but it remains a challenging task. Existing generative methods offer a solution by producing synthetic…

Machine Learning · Computer Science 2026-04-07 Pracheta Amaranath , Vinitra Muralikrishnan , Amit Sharma , David Jensen

In this article, we proved that, under weak and natural requirements, uncorrelated scattering (in particular WSSUS) channels can be modeled as stochastic integrals. Moreover, if we assume (not only uncorrelated but also) independent…

Functional Analysis · Mathematics 2017-05-04 Onur Oktay

Integrated sensing and communication (ISAC) increasingly exposes a gap in today's channel modeling. Efficient statistical models focus on coarse communication-centric metrics, and therefore miss the weak but critical multipath signatures…

Information Theory · Computer Science 2026-01-23 Yi Chen , Yatao Hu , Ming Li , Chong Han

Effective image restoration with large-size corruptions, such as blind image inpainting, entails precise detection of corruption region masks which remains extremely challenging due to diverse shapes and patterns of corruptions. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Xin Feng , Yifeng Xu , Guangming Lu , Wenjie Pei

End-to-end generative methods are considered a more promising solution for image restoration in physics-based vision compared with the traditional deconstructive methods based on handcrafted composition models. However, existing generative…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Xudong Kang , Haoran Xie , Man-Leung Wong , Jing Qin

We propose a framework for probabilistic forecasting of dynamical systems based on generative modeling. Given observations of the system state over time, we formulate the forecasting problem as sampling from the conditional distribution of…

Machine Learning · Computer Science 2024-08-29 Yifan Chen , Mark Goldstein , Mengjian Hua , Michael S. Albergo , Nicholas M. Boffi , Eric Vanden-Eijnden

Data is commonly stored in tabular format. Several fields of research are prone to small imbalanced tabular data. Supervised Machine Learning on such data is often difficult due to class imbalance. Synthetic data generation, i.e.,…

Machine Learning · Computer Science 2022-07-14 Kristian Schultz , Saptarshi Bej , Waldemar Hahn , Markus Wolfien , Prashant Srivastava , Olaf Wolkenhauer

This study investigates human-computer interface generation based on diffusion models to overcome the limitations of traditional template-based design and fixed rule-driven methods. It first analyzes the key challenges of interface…

Human-Computer Interaction · Computer Science 2026-01-13 Rui Liu , Liuqingqing Yang , Runsheng Zhang , Shixiao Wang

Underwater image restoration and enhancement are crucial for correcting color distortion and restoring image details, thereby establishing a fundamental basis for subsequent underwater visual tasks. However, current deep learning…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Yufeng Tian , Yifan Chen , Zhe Sun , Libang Chen , Mingyu Dou , Jijun Lu , Ye Zheng , Xuelong Li

In this work, we address the super-resolution problem of satellite-derived sea surface temperature (SST) using deep generative models. Although standard gap-filling techniques are effective in producing spatially complete datasets, they…

Atmospheric and Oceanic Physics · Physics 2025-12-01 Claudia Fanelli , Tiany Li , Luca Biferale , Bruno Buongiorno Nardelli , Daniele Ciani , Andrea Pisano , Michele Buzzicotti

While neural lossy compression techniques have markedly advanced the efficiency of Channel State Information (CSI) compression and reconstruction for feedback in MIMO communications, efficient algorithms for more challenging and practical…

Non-autoregressive generative transformers recently demonstrated impressive image generation performance, and orders of magnitude faster sampling than their autoregressive counterparts. However, optimal parallel sampling from the true joint…

Computer Vision and Pattern Recognition · Computer Science 2022-09-12 José Lezama , Huiwen Chang , Lu Jiang , Irfan Essa

We present a general (i.e., independent of the underlying model) interpolation technique based on optimal transportation of Gaussian models for parametric advection-dominated problems. The approach relies on a scalar testing function to…

Numerical Analysis · Mathematics 2022-10-19 Angelo Iollo , Tommaso Taddei

Subsurface remediation often involves reconstruction of contaminant release history from sparse observations of solute concentration. Markov Chain Monte Carlo (MCMC), the most accurate and general method for this task, is rarely used in…

Computational Engineering, Finance, and Science · Computer Science 2021-11-03 Zitong Zhou , Daniel M. Tartakovsky

Since most inverse problems arising in scientific and engineering applications are ill-posed, prior information about the solution space is incorporated, typically through regularization, to establish a well-posed problem with a unique…

Signal Processing · Electrical Eng. & Systems 2024-06-18 Carter Lyons , Raghu G. Raj , Margaret Cheney

Recently image inpainting has witnessed rapid progress due to generative adversarial networks (GAN) that are able to synthesize realistic contents. However, most existing GAN-based methods for semantic inpainting apply an auto-encoder…

Computer Vision and Pattern Recognition · Computer Science 2017-12-22 Haofeng Li , Guanbin Li , Liang Lin , Yizhou Yu

Enabling image generation models to be spatially controlled is an important area of research, empowering users to better generate images according to their own fine-grained specifications via e.g. edge maps, poses. Although this task has…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Guoxuan Xia , Harleen Hanspal , Petru-Daniel Tudosiu , Shifeng Zhang , Sarah Parisot

We formalize and attack the problem of generating new images from old ones that are as diverse as possible, only allowing them to change without restrictions in certain parts of the image while remaining globally consistent. This…

Machine Learning · Statistics 2020-12-11 Sarah Jane Hong , Martin Arjovsky , Darryl Barnhart , Ian Thompson

In this work we introduce a novel stochastic algorithm dubbed SNIPS, which draws samples from the posterior distribution of any linear inverse problem, where the observation is assumed to be contaminated by additive white Gaussian noise.…

Image and Video Processing · Electrical Eng. & Systems 2021-11-11 Bahjat Kawar , Gregory Vaksman , Michael Elad

In our contemporary academic inquiry, we present "Diffusion-C," a foundational methodology to analyze the generative restrictions of Diffusion Models, particularly those akin to GANs, DDPM, and DDIM. By employing input visual data that has…

Machine Learning · Computer Science 2023-12-15 Keywoong Bae , Suan Lee , Wookey Lee
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