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Generative flow networks (GFlowNets) are amortized variational inference algorithms that are trained to sample from unnormalized target distributions over compositional objects. A key limitation of GFlowNets until this time has been that…

Direct numerical simulations have proven of inestimable help to our understanding of the transition to turbulence in wall-bounded flows. While the dynamics of the transition from laminar flow to turbulence via localised spots can be…

斑图形成与孤子 · 物理学 2014-12-17 Paul Manneville , Joran Rolland

Deep Learning research is advancing at a fantastic rate, and there is much to gain from transferring this knowledge to older fields like Computational Fluid Dynamics in practical engineering contexts. This work compares state-of-the-art…

计算物理 · 物理学 2020-10-01 Pierre Jacquier , Azzedine Abdedou , Vincent Delmas , Azzeddine Soulaimani

In recent works, a flow-based neural vocoder has shown significant improvement in real-time speech generation task. The sequence of invertible flow operations allows the model to convert samples from simple distribution to audio samples.…

音频与语音处理 · 电气工程与系统科学 2020-08-18 Hyun-Wook Yoon , Sang-Hoon Lee , Hyeong-Rae Noh , Seong-Whan Lee

Capsule Networks (CapsNets) have demonstrated to be a promising alternative to Convolutional Neural Networks (CNNs). However, they often fall short of state-of-the-art accuracies on large-scale high-dimensional datasets. We propose a…

计算机视觉与模式识别 · 计算机科学 2020-07-13 Aryan Mobiny , Pengyu Yuan , Pietro Antonio Cicalese , Hien Van Nguyen

State-of-the-art neural network models estimate large displacement optical flow in multi-resolution and use warping to propagate the estimation between two resolutions. Despite their impressive results, it is known that there are two…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Yao Lu , Jack Valmadre , Heng Wang , Juho Kannala , Mehrtash Harandi , Philip H. S. Torr

Much of the recent efforts on salient object detection (SOD) have been devoted to producing accurate saliency maps without being aware of their instance labels. To this end, we propose a new pipeline for end-to-end salient instance…

计算机视觉与模式识别 · 计算机科学 2021-03-15 Yu-Huan Wu , Yun Liu , Le Zhang , Wang Gao , Ming-Ming Cheng

Flow matching has emerged as a powerful generative framework, with recent few-step methods achieving remarkable inference acceleration. However, we identify a critical yet overlooked limitation: these models suffer from severe diversity…

机器学习 · 计算机科学 2026-04-15 Yexiong Lin , Jia Shi , Shanshan Ye , Wanyu Wang , Yu Yao , Tongliang Liu

A normalizing flow models a complex probability density as an invertible transformation of a simple base density. Flows based on either coupling or autoregressive transforms both offer exact density evaluation and sampling, but rely on the…

机器学习 · 统计学 2019-12-03 Conor Durkan , Artur Bekasov , Iain Murray , George Papamakarios

Explicitly disentangling style and content in vision models remains challenging due to their semantic overlap and the subjectivity of human perception. Existing methods propose separation through generative or discriminative objectives, but…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Pingchuan Ma , Xiaopei Yang , Yusong Li , Ming Gui , Felix Krause , Johannes Schusterbauer , Björn Ommer

Fluid dynamics spans phenomena from the Cheerios effect to cosmic evolution and has been called the 'queen mother' of science. Traditional modelling relies on numerical methods, including finite differences, volumes, and elements, that…

流体动力学 · 物理学 2026-04-09 Kwame Agyei-Baah , Muhammad Rizwanur Rahman , E. R. Smith

Flow models are effective at progressively generating realistic images, but they generally struggle to capture long-range dependencies during the generation process as they compress all the information from previous time steps into a single…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Mude Hui , Rui-Jie Zhu , Songlin Yang , Yu Zhang , Zirui Wang , Yuyin Zhou , Jason Eshraghian , Cihang Xie

Conventional image sensors digitize high-resolution images at fast frame rates, producing a large amount of data that needs to be transmitted off the sensor for further processing. This is challenging for perception systems operating on…

计算机视觉与模式识别 · 计算机科学 2023-04-13 Haley M. So , Laurie Bose , Piotr Dudek , Gordon Wetzstein

Recent efforts have extended the flow-matching framework to discrete generative modeling. One strand of models directly works with the continuous probabilities instead of discrete tokens, which we colloquially refer to as Continuous-State…

机器学习 · 计算机科学 2025-04-15 Chaoran Cheng , Jiahan Li , Jiajun Fan , Ge Liu

Normalizing flows are an essential alternative to GANs for generative modelling, which can be optimized directly on the maximum likelihood of the dataset. They also allow computation of the exact latent vector corresponding to an image…

机器学习 · 计算机科学 2021-08-10 Sandeep Nagar , Marius Dufraisse , Girish Varma

Deep convolutional networks (CNNs) have exhibited their potential in image inpainting for producing plausible results. However, in most existing methods, e.g., context encoder, the missing parts are predicted by propagating the surrounding…

计算机视觉与模式识别 · 计算机科学 2018-04-16 Zhaoyi Yan , Xiaoming Li , Mu Li , Wangmeng Zuo , Shiguang Shan

Two-phase flow phenomena underpin critical technologies such as hydrogen fuel cells, spray cooling, and combustion, where droplet dynamics govern performance and efficiency. Conventional optical diagnostics, including shadowgraphy and…

流体动力学 · 物理学 2025-11-27 Maximilian Dreisbach , Elham Kiyani , Jochen Kriegseis , George Karniadakis , Alexander Stroh

Flow-field reconstruction from sparse sensor measurements remains a central challenge in modern fluid dynamics, as the need for high-fidelity data often conflicts with practical limits on sensor deployment. Existing deep learning-based…

计算工程、金融与科学 · 计算机科学 2026-05-15 Ruoyan Li , Guancheng Wan , Zijie Huang , Zixiao Liu , Haixin Wang , Xiao Luo , Wei Wang , Yizhou Sun

We show that the standard discrete update rule of transformer layers can be naturally interpreted as a forward Euler discretization of a continuous dynamical system. Our Transformer Flow Approximation Theorem demonstrates that, under…

机器学习 · 计算机科学 2025-05-26 Jacob Fein-Ashley

Reliable outlier detection is critical for real-world deployment of deep learning models. Although extensively studied, likelihoods produced by deep generative models have been largely dismissed as being impractical for outlier detection.…

机器学习 · 计算机科学 2023-05-23 Barath Mohan Umapathi , Kushal Chauhan , Pradeep Shenoy , Devarajan Sridharan