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The use of synthetic images in medical imaging Artificial Intelligence (AI) solutions has been shown to be beneficial in addressing the limited availability of diverse, unbiased, and representative data. Despite the extensive use of…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Elay Dahan , Hedda Cohen Indelman , Angeles M. Perez-Agosto , Carmit Shiran , Gopal Avinash , Doron Shaked , Nati Daniel

Policy targets evolve faster than the Coupled Model Intercomparison Project cycles, complicating adaptation and mitigation planning that must often contend with outdated projections. Climate model output emulators address this gap by…

大气与海洋物理 · 物理学 2026-04-14 Shahine Bouabid , Andre Nogueira Souza , Raffaele Ferrari

Neural style transfer is a powerful computer vision technique that can incorporate the artistic "style" of one image to the "content" of another. The underlying theory behind the approach relies on the assumption that the style of an image…

机器学习 · 计算机科学 2022-09-26 Yousef El-Laham , Svitlana Vyetrenko

Score calibration enables automatic speaker recognizers to make cost-effective accept / reject decisions. Traditional calibration requires supervised data, which is an expensive resource. We propose a 2-component GMM for unsupervised…

机器学习 · 统计学 2014-02-17 Niko Brümmer , Daniel Garcia-Romero

Time series foundation models (TSFMs) have recently gained significant attention due to their strong zero-shot capabilities and widespread real-world applications. Such models typically require a computationally costly pre-training on…

With the prevalence of social networks on online platforms, social recommendation has become a vital technique for enhancing personalized recommendations. The effectiveness of social recommendations largely relies on the social homophily…

社会与信息网络 · 计算机科学 2025-08-28 Chengyi Liu , Jiahao Zhang , Shijie Wang , Wenqi Fan , Qing Li

Score-based modeling through stochastic differential equations (SDEs) has provided a new perspective on diffusion models, and demonstrated superior performance on continuous data. However, the gradient of the log-likelihood function, i.e.,…

机器学习 · 计算机科学 2023-03-07 Haoran Sun , Lijun Yu , Bo Dai , Dale Schuurmans , Hanjun Dai

We introduce a framework for joint grounded scene graph - image generation, a challenging task involving high-dimensional, multi-modal structured data. To effectively model this complex joint distribution, we adopt a factorized approach:…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Bicheng Xu , Qi Yan , Renjie Liao , Lele Wang , Leonid Sigal

It is abundantly clear that time dependent data is a vital source of information in the world. The challenge has been for applications in machine learning to gain access to a considerable amount of quality data needed for algorithm…

机器学习 · 计算机科学 2020-07-01 Kaleb E Smith , Anthony O Smith

Simulation studies are widely used to evaluate statistical methods. However, new methods are often introduced and evaluated using data-generating mechanisms (DGMs) devised by the same authors. This coupling creates misaligned incentives,…

统计方法学 · 统计学 2025-10-23 František Bartoš , Samuel Pawel , Björn S. Siepe

Sequential change-point detection plays a critical role in numerous real-world applications, where timely identification of distributional shifts can greatly mitigate adverse outcomes. Classical methods commonly rely on parametric density…

机器学习 · 统计学 2025-01-23 Wenbin Zhou , Liyan Xie , Zhigang Peng , Shixiang Zhu

Granular sound synthesis is a popular audio generation technique based on rearranging sequences of small waveform windows. In order to control the synthesis, all grains in a given corpus are analyzed through a set of acoustic descriptors.…

声音 · 计算机科学 2021-07-06 Adrien Bitton , Philippe Esling , Tatsuya Harada

Surface electromyography (sEMG) recordings can be influenced by electrocardiogram (ECG) signals when the muscle being monitored is close to the heart. Several existing methods use signal-processing-based approaches, such as high-pass filter…

信号处理 · 电气工程与系统科学 2024-04-02 Yu-Tung Liu , Kuan-Chen Wang , Kai-Chun Liu , Sheng-Yu Peng , Yu Tsao

We propose an efficient framework for amortized conditional inference by leveraging exact conditional score-guided diffusion models to train a non-reversible neural network as a conditional generative model. Traditional normalizing flow…

计算工程、金融与科学 · 计算机科学 2025-06-24 Zezhong Zhang , Caroline Tatsuoka , Dongbin Xiu , Guannan Zhang

The proposed BSDE-based diffusion model represents a novel approach to diffusion modeling, which extends the application of stochastic differential equations (SDEs) in machine learning. Unlike traditional SDE-based diffusion models, our…

机器学习 · 计算机科学 2023-04-27 Zihao Wang

Generative models are designed to address the data scarcity problem. Even with the exploding amount of data, due to computational advancements, some applications (e.g., health care, weather forecast, fault detection) still suffer from data…

机器学习 · 计算机科学 2024-05-07 Alireza Koochali , Maria Walch , Sankrutyayan Thota , Peter Schichtel , Andreas Dengel , Sheraz Ahmed

Denoising diffusion probabilistic models (DDPMs) are becoming the leading paradigm for generative models. It has recently shown breakthroughs in audio synthesis, time series imputation and forecasting. In this paper, we propose…

机器学习 · 计算机科学 2024-10-22 Xinyu Yuan , Yan Qiao

We propose an end-to-end architecture for multivariate time-series prediction that integrates a spatial-temporal graph neural network with a matrix filtering module. This module generates filtered (inverse) correlation graphs from…

机器学习 · 计算机科学 2022-03-09 Yuanrong Wang , Tomaso Aste

The use of synthetic data in machine learning applications and research offers many benefits, including performance improvements through data augmentation, privacy preservation of original samples, and reliable method assessment with fully…

机器学习 · 计算机科学 2026-04-13 Joanna Komorniczak

Most existing theoretical investigations of the accuracy of diffusion models, albeit significant, assume the score function has been approximated to a certain accuracy, and then use this a priori bound to control the error of generation.…

机器学习 · 计算机科学 2024-10-29 Yuqing Wang , Ye He , Molei Tao