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This paper introduces a novel neural network - flow completion network (FCN) - to infer the fluid dynamics, includ-ing the flow field and the force acting on the body, from the incomplete data based on Graph Convolution AttentionNetwork.…

Fluid Dynamics · Physics 2022-08-24 Xiaodong He , Yinan Wang , Juan Li

Neural architectures can be naturally viewed as computational graphs. Motivated by this perspective, we, in this paper, study neural architecture search (NAS) through the lens of learning random graph models. In contrast to existing NAS…

Machine Learning · Computer Science 2022-11-29 Muchen Li , Jeffrey Yunfan Liu , Leonid Sigal , Renjie Liao

Recent studies on neural architecture search have shown that automatically designed neural networks perform as good as expert-crafted architectures. While most existing works aim at finding architectures that optimize the prediction…

Artificial intelligence techniques are considered an effective means to accelerate flow field simulations. However, current deep learning methods struggle to achieve generalization to flow field resolutions while ensuring computational…

Fluid Dynamics · Physics 2024-05-15 Kuijun Zuo , Zhengyin Ye , Linyang Zhu , Xianxu Yuan , Weiwei Zhang

Neural architecture search (NAS) and network pruning are widely studied efficient AI techniques, but not yet perfect. NAS performs exhaustive candidate architecture search, incurring tremendous search cost. Though (structured) pruning can…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Yanyu Li , Pu Zhao , Geng Yuan , Xue Lin , Yanzhi Wang , Xin Chen

Multiplication-less neural networks significantly reduce the time and energy cost on the hardware platform, as the compute-intensive multiplications are replaced with lightweight bit-shift operations. However, existing bit-shift networks…

Machine Learning · Computer Science 2022-04-12 Xiaoxuan Lou , Guowen Xu , Kangjie Chen , Guanlin Li , Jiwei Li , Tianwei Zhang

Deep learning algorithms, in particular 2D and 3D fully convolutional neural networks (FCNs), have rapidly become the mainstream methodology for volumetric medical image segmentation. However, 2D convolutions cannot fully leverage the rich…

Image and Video Processing · Electrical Eng. & Systems 2019-08-06 Zhuotun Zhu , Chenxi Liu , Dong Yang , Alan Yuille , Daguang Xu

High-resolution representations (HR) are essential for dense prediction tasks such as segmentation, detection, and pose estimation. Learning HR representations is typically ignored in previous Neural Architecture Search (NAS) methods that…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Mingyu Ding , Xiaochen Lian , Linjie Yang , Peng Wang , Xiaojie Jin , Zhiwu Lu , Ping Luo

The key challenge in neural architecture search (NAS) is designing how to explore wisely in the huge search space. We propose a new NAS method called TNAS (NAS with trees), which improves search efficiency by exploring only a small number…

Artificial Intelligence · Computer Science 2022-04-12 Guocheng Qian , Xuanyang Zhang , Guohao Li , Chen Zhao , Yukang Chen , Xiangyu Zhang , Bernard Ghanem , Jian Sun

Neural Architecture Search (NAS) has shown great potentials in finding better neural network designs. Sample-based NAS is the most reliable approach which aims at exploring the search space and evaluating the most promising architectures.…

Machine Learning · Computer Science 2020-11-26 Han Shi , Renjie Pi , Hang Xu , Zhenguo Li , James T. Kwok , Tong Zhang

Vision Transformer (ViT) demonstrates that Transformer for natural language processing can be applied to computer vision tasks and result in comparable performance to convolutional neural networks (CNN), which have been studied and adopted…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Yi-Lun Liao , Sertac Karaman , Vivienne Sze

Optical flow estimation is a classical yet challenging task in computer vision. One of the essential factors in accurately predicting optical flow is to alleviate occlusions between frames. However, it is still a thorny problem for current…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Shangkun Sun , Yuanqi Chen , Yu Zhu , Guodong Guo , Ge Li

The great potential of unsupervised monocular depth estimation has been demonstrated by many works due to low annotation cost and impressive accuracy comparable to supervised methods. To further improve the performance, recent works mainly…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Junyu Zhu , Lina Liu , Yong Liu , Wanlong Li , Feng Wen , Hongbo Zhang

Optical flow estimation is a fundamental and long-standing visual task. In this work, we present a novel method, dubbed HMAFlow, to improve optical flow estimation in challenging scenes, particularly those involving small objects. The…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Dianbo Ma , Kousuke Imamura , Ziyan Gao , Xiangjie Wang , Satoshi Yamane

Neural networks are trained by choosing an architecture and training the parameters. The choice of architecture is often by trial and error or with Neural Architecture Search (NAS) methods. While NAS provides some automation, it often…

Machine Learning · Computer Science 2024-10-14 Zitong Huang , Mansooreh Montazerin , Ajitesh Srivastava

Normalizing flows (NFs) have become a prominent method for deep generative models that allow for an analytic probability density estimation and efficient synthesis. However, a flow-based network is considered to be inefficient in parameter…

Machine Learning · Computer Science 2020-10-26 Sang-gil Lee , Sungwon Kim , Sungroh Yoon

The recent WSNet [1] is a new model compression method through sampling filterweights from a compact set and has demonstrated to be effective for 1D convolutionneural networks (CNNs). However, the weights sampling strategy of WSNet…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Daquan Zhou , Xiaojie Jin , Qibin Hou , Kaixin Wang , Jianchao Yang , Jiashi Feng

IoT devices are powered by microcontroller units (MCUs) which are extremely resource-scarce: a typical MCU may have an underpowered processor and around 64 KB of memory and persistent storage, which is orders of magnitude fewer…

Machine Learning · Computer Science 2020-12-09 Edgar Liberis , Łukasz Dudziak , Nicholas D. Lane

Optical flow estimation is a fundamental problem in computer vision, yet the reliance on expensive ground-truth annotations limits the scalability of supervised approaches. Although unsupervised and semi-supervised methods alleviate this…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Yixuan Luo , Feng Qiao , Zhexiao Xiong , Yanjing Li , Nathan Jacobs

Diffusion models have recently exhibited remarkable performance on synthetic data. After a diffusion path is selected, a base model, such as UNet, operates as a denoising autoencoder, primarily predicting noises that need to be eliminated…

Artificial Intelligence · Computer Science 2023-10-11 Wenhao Li , Xiu Su , Shan You , Fei Wang , Chen Qian , Chang Xu