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To better support information retrieval tasks such as web search and open-domain question answering, growing effort is made to develop retrieval-oriented language models, e.g., RetroMAE and many others. Most of the existing works focus on…

计算与语言 · 计算机科学 2023-05-05 Shitao Xiao , Zheng Liu , Yingxia Shao , Zhao Cao

We propose a multi-scale deep energy model that is strongly convex in the local neighbourhood around the data manifold to represent its probability density, with application in inverse problems. In particular, we represent the negative…

机器学习 · 计算机科学 2025-02-06 Jyothi Rikhab Chand , Mathews Jacob

Reliable MRI is crucial for accurate interpretation in therapeutic and diagnostic tasks. However, undersampling during MRI acquisition as well as the overparameterized and non-transparent nature of deep learning (DL) leaves substantial…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Vineet Edupuganti , Morteza Mardani , Shreyas Vasanawala , John Pauly

Shape illustration images (SIIs) are common and important in describing the cross-sections of industrial products. Same as MNIST, the handwritten digit images, SIIs are gray or binary and containing shapes that are surrounded by large areas…

图像与视频处理 · 电气工程与系统科学 2020-02-07 Qianwei Zhou , Peng Tao , Xiaoxin Li , Shengyong Chen , Fan Zhang , Haigen Hu

Autoencoder (AE) is a neural network (NN) architecture that is trained to reconstruct an input at its output. By measuring the reconstruction errors of new input samples, AE can detect anomalous samples deviated from the trained data…

机器学习 · 计算机科学 2023-02-16 Jinho Choi , Jihong Park , Abhinav Japesh , Adarsh

Contrastive learning (CL) for Vision Transformers (ViTs) in image domains has achieved performance comparable to CL for traditional convolutional backbones. However, in 3D point cloud pretraining with ViTs, masked autoencoder (MAE) modeling…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Bin Ren , Guofeng Mei , Danda Pani Paudel , Weijie Wang , Yawei Li , Mengyuan Liu , Rita Cucchiara , Luc Van Gool , Nicu Sebe

Modern learning frameworks often train deep neural networks with massive amounts of unlabeled data to learn representations by solving simple pretext tasks, then use the representations as foundations for downstream tasks. These networks…

机器学习 · 计算机科学 2024-04-04 Druv Pai , Ziyang Wu , Sam Buchanan , Yaodong Yu , Yi Ma

Masked Autoencoders (MAEs) learn generalizable representations for image, text, audio, video, etc., by reconstructing masked input data from tokens of the visible data. Current MAE approaches for videos rely on random patch, tube, or…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Wele Gedara Chaminda Bandara , Naman Patel , Ali Gholami , Mehdi Nikkhah , Motilal Agrawal , Vishal M. Patel

We propose a masked self-supervised learning framework, called BRepMAE, for automatically extracting a valuable representation of the input computer-aided design (CAD) model to recognize its machining features. Representation learning is…

图形学 · 计算机科学 2026-02-27 Can Yao , Kang Wu , Zuheng Zheng , Siyuan Xing , Xiao-Ming Fu

Unsupervised learning can leverage large-scale data sources without the need for annotations. In this context, deep learning-based auto encoders have shown great potential in detecting anomalies in medical images. However, state-of-the-art…

机器学习 · 计算机科学 2018-12-17 David Zimmerer , Simon A. A. Kohl , Jens Petersen , Fabian Isensee , Klaus H. Maier-Hein

Self-supervised learning (SSL) enables learning useful inductive biases through utilizing pretext tasks that require no labels. The unlabeled nature of SSL makes it especially important for whole slide histopathological images (WSIs), where…

计算机视觉与模式识别 · 计算机科学 2022-11-15 Wisdom Oluchi Ikezogwo , Mehmet Saygin Seyfioglu , Linda Shapiro

Unsupervised anomaly detection (UAD) aims to find anomalous images by optimising a detector using a training set that contains only normal images. UAD approaches can be based on reconstruction methods, self-supervised approaches, and…

图像与视频处理 · 电气工程与系统科学 2023-08-23 Yu Tian , Guansong Pang , Yuyuan Liu , Chong Wang , Yuanhong Chen , Fengbei Liu , Rajvinder Singh , Johan W Verjans , Mengyu Wang , Gustavo Carneiro

Masked Autoencoders (MAE) have been prevailing paradigms for large-scale vision representation pre-training. By reconstructing masked image patches from a small portion of visible image regions, MAE forces the model to infer semantic…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Hongwei Xue , Peng Gao , Hongyang Li , Yu Qiao , Hao Sun , Houqiang Li , Jiebo Luo

Compressive sensing is an impressive approach for fast MRI. It aims at reconstructing MR image using only a few under-sampled data in k-space, enhancing the efficiency of the data acquisition. In this study, we propose to learn priors based…

图像与视频处理 · 电气工程与系统科学 2019-09-05 Siyuan Wang , Junjie Lv , Yuanyuan Hu , Dong Liang , Minghui Zhang , Qiegen Liu

We present the Material Masked Autoencoder (MMAE), a self-supervised Vision Transformer pretrained on a large corpus of short-fiber composite images via masked image reconstruction. The pretrained MMAE learns latent representations that…

计算工程、金融与科学 · 计算机科学 2025-10-23 Ting-Ju Wei , Chuin-Shan Chen

In 21cm intensity mapping of the large-scale structure (LSS), regions in Fourier space could be compromised by foreground contamination. In interferometric observations, this contamination, known as the foreground wedge, is exacerbated by…

宇宙学与河外天体物理 · 物理学 2025-03-27 Qian Li , Xin Wang , Xiaodong Li , Jiacheng Ding , Tiancheng Luan , Xiaolin Luo

Context-based detection methods such as DetectGPT achieve strong generalization in identifying AI-generated text by evaluating content compatibility with a model's learned distribution. In contrast, existing image detectors rely on…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Minsuk Jang , Hyunseo Jeong , Minseok Son , Changick Kim

Algorithms for Magnetic Resonance (MR) image reconstruction from undersampled measurements exploit prior information to compensate for missing k-space data. Deep learning (DL) provides a powerful framework for extracting such information…

计算机视觉与模式识别 · 计算机科学 2018-12-20 Kerem C. Tezcan , Christian F. Baumgartner , Roger Luechinger , Klaas P. Pruessmann , Ender Konukoglu

Pre-training by numerous image data has become de-facto for robust 2D representations. In contrast, due to the expensive data acquisition and annotation, a paucity of large-scale 3D datasets severely hinders the learning for high-quality 3D…

计算机视觉与模式识别 · 计算机科学 2022-12-14 Renrui Zhang , Liuhui Wang , Yu Qiao , Peng Gao , Hongsheng Li

To better support retrieval applications such as web search and question answering, growing effort is made to develop retrieval-oriented language models. Most of the existing works focus on improving the semantic representation capability…

计算与语言 · 计算机科学 2022-11-17 Shitao Xiao , Zheng Liu