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Generative models realized with machine learning techniques are powerful tools to infer complex and unknown data distributions from a finite number of training samples in order to produce new synthetic data. Diffusion models are an emerging…

量子物理 · 物理学 2024-07-18 Marco Parigi , Stefano Martina , Filippo Caruso

To fully leverage the capabilities of diffusion models, we are often interested in optimizing downstream reward functions during inference. While numerous algorithms for reward-guided generation have been recently proposed due to their…

机器学习 · 计算机科学 2025-04-18 Masatoshi Uehara , Xingyu Su , Yulai Zhao , Xiner Li , Aviv Regev , Shuiwang Ji , Sergey Levine , Tommaso Biancalani

Although auto-regressive models excel in natural language processing, they often struggle to generate diverse text and provide limited controllability. Non-auto-regressive methods could be an alternative but often produce degenerate outputs…

计算与语言 · 计算机科学 2025-02-25 Hyukhun Koh , Minha Jhang , Dohyung Kim , Sangmook Lee , Kyomin Jung

Generative diffusion processes are an emerging and effective tool for image and speech generation. In the existing methods, the underlying noise distribution of the diffusion process is Gaussian noise. However, fitting distributions with…

信号处理 · 电气工程与系统科学 2021-10-13 Eliya Nachmani , Robin San Roman , Lior Wolf

A generative adversarial network (GAN) has been a representative backbone model in generative artificial intelligence (AI) because of its powerful performance in capturing intricate data-generating processes. However, the GAN training is…

机器学习 · 统计学 2025-08-21 Jinwon Sohn , Qifan Song

Learning probabilistic models that can estimate the density of a given set of samples, and generate samples from that density, is one of the fundamental challenges in unsupervised machine learning. We introduce a new generative model based…

机器学习 · 计算机科学 2020-06-11 Siavash A. Bigdeli , Geng Lin , Tiziano Portenier , L. Andrea Dunbar , Matthias Zwicker

Adapting to the changing climate requires accurate local climate information, a computationally challenging problem. Recent studies have used Generative Adversarial Networks (GANs), a type of deep learning, to learn complex distributions…

机器学习 · 计算机科学 2024-06-06 Kiri Daust , Adam Monahan

Temporal action segmentation is crucial for understanding long-form videos. Previous works on this task commonly adopt an iterative refinement paradigm by using multi-stage models. We propose a novel framework via denoising diffusion…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Daochang Liu , Qiyue Li , AnhDung Dinh , Tingting Jiang , Mubarak Shah , Chang Xu

Climate change necessitates rapid expansion of renewable energy, with wind energy offering a scalable and low-impact solution. However, accurate prediction of wind loads and power generation remains challenging due to uncertainties in wind…

流体动力学 · 物理学 2026-04-30 Omar Sallam , Mirjam Fürth

Recent work in synthetic data generation in the time-series domain has focused on the use of Generative Adversarial Networks. We propose a novel architecture for synthetically generating time-series data with the use of Variational…

机器学习 · 计算机科学 2021-12-08 Abhyuday Desai , Cynthia Freeman , Zuhui Wang , Ian Beaver

Generative models have demonstrated strong performance in conditional settings and can be viewed as a form of data compression, where the condition serves as a compact representation. However, their limited controllability and…

机器学习 · 计算机科学 2025-07-04 Xiao Li , Liangji Zhu , Anand Rangarajan , Sanjay Ranka

A key advance in learning generative models is the use of amortized inference distributions that are jointly trained with the models. We find that existing training objectives for variational autoencoders can lead to inaccurate amortized…

机器学习 · 计算机科学 2018-05-31 Shengjia Zhao , Jiaming Song , Stefano Ermon

Contemporary benchmark methods for image inpainting are based on deep generative models and specifically leverage adversarial loss for yielding realistic reconstructions. However, these models cannot be directly applied on image/video…

计算机视觉与模式识别 · 计算机科学 2017-11-20 Avisek Lahiri , Arnav Jain , Prabir Kumar Biswas , Pabitra Mitra

Conditional generative models have achieved considerable success in the past few years, but usually require a lot of labeled data. Recently, ClusterGAN combines GAN with an encoder to achieve remarkable clustering performance via…

机器学习 · 计算机科学 2021-04-06 Fei Ding , Feng Luo , Yin Yang

Conditional generative adversarial networks (cGAN) have led to large improvements in the task of conditional image generation, which lies at the heart of computer vision. The major focus so far has been on performance improvement, while…

机器学习 · 计算机科学 2019-03-14 Grigorios G. Chrysos , Jean Kossaifi , Stefanos Zafeiriou

Diffusion models learn to denoise data and the trained denoiser is then used to generate new samples from the data distribution. In this paper, we revisit the diffusion sampling process and identify a fundamental cause of sample quality…

机器学习 · 计算机科学 2024-11-05 Yunshu Wu , Yingtao Luo , Xianghao Kong , Evangelos E. Papalexakis , Greg Ver Steeg

Diffusion probabilistic models have achieved enormous success in the field of image generation and manipulation. In this paper, we explore a novel paradigm of using the diffusion model and classifier guidance in the latent semantic space…

计算机视觉与模式识别 · 计算机科学 2023-05-25 Changhao Shi , Haomiao Ni , Kai Li , Shaobo Han , Mingfu Liang , Martin Renqiang Min

Generative diffusion processes are an emerging and effective tool for image and speech generation. In the existing methods, the underline noise distribution of the diffusion process is Gaussian noise. However, fitting distributions with…

机器学习 · 计算机科学 2021-06-17 Eliya Nachmani , Robin San Roman , Lior Wolf

We present a supervised learning framework of training generative models for density estimation. Generative models, including generative adversarial networks, normalizing flows, variational auto-encoders, are usually considered as…

机器学习 · 计算机科学 2023-10-24 Yanfang Liu , Minglei Yang , Zezhong Zhang , Feng Bao , Yanzhao Cao , Guannan Zhang

This paper presents a diffusion-based recommender system that incorporates classifier-free guidance. Most current recommender systems provide recommendations using conventional methods such as collaborative or content-based filtering.…

信息检索 · 计算机科学 2024-09-17 Noah Buchanan , Susan Gauch , Quan Mai