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Extracting compact, physically interpretable representations from high-dimensional scientific data is a persistent challenge due to the complex, nonlinear structures inherent in physical systems. We propose a Gaussian Mixture Variational…

机器学习 · 计算机科学 2025-12-01 Tiffany Fan , Murray Cutforth , Marta D'Elia , Alexandre Cortiella , Alireza Doostan , Eric Darve

Masked Autoencoders (MAE) achieve self-supervised learning of image representations by randomly removing a portion of visual tokens and reconstructing the original image as a pretext task, thereby significantly enhancing pretraining…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Jiaxuan Li , Qing Xu , Xiangjian He , Ziyu Liu , Chang Xing , Zhen Chen , Daokun Zhang , Rong Qu , Chang Wen Chen

Longitudinal datasets measured repeatedly over time from individual subjects, arise in many biomedical, psychological, social, and other studies. A common approach to analyse high-dimensional data that contains missing values is to learn a…

Electrocardiogram (ECG) analysis is a fundamental tool for diagnosing cardiovascular conditions, yet anomaly detection in ECG signals remains challenging due to their inherent complexity and variability. We propose Multi-scale Masked…

机器学习 · 计算机科学 2025-02-11 Ya Zhou , Yujie Yang , Jianhuang Gan , Xiangjie Li , Jing Yuan , Wei Zhao

Self-supervised frameworks for representation learning have recently stirred up interest among the remote sensing community, given their potential to mitigate the high labeling costs associated with curating large satellite image datasets.…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Hugo Chan-To-Hing , Bharadwaj Veeravalli

Masked autoencoders (MAE) have recently succeeded in self-supervised vision representation learning. Previous work mainly applied custom-designed (e.g., random, block-wise) masking or teacher (e.g., CLIP)-guided masking and targets.…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Shentong Mo

Part-level features are crucial for image understanding, but few studies focus on them because of the lack of fine-grained labels. Although unsupervised part discovery can eliminate the reliance on labels, most of them cannot maintain…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Jiahao Xia , Yike Wu , Wenjian Huang , Jianguo Zhang , Jian Zhang

In this work, we examine the impact of inter-patch dependencies in the decoder of masked autoencoders (MAE) on representation learning. We decompose the decoding mechanism for masked reconstruction into self-attention between mask tokens…

计算机视觉与模式识别 · 计算机科学 2025-04-11 Letian Fu , Long Lian , Renhao Wang , Baifeng Shi , Xudong Wang , Adam Yala , Trevor Darrell , Alexei A. Efros , Ken Goldberg

Transformers have shown significant effectiveness for various vision tasks including both high-level vision and low-level vision. Recently, masked autoencoders (MAE) for feature pre-training have further unleashed the potential of…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Huiyu Duan , Wei Shen , Xiongkuo Min , Danyang Tu , Long Teng , Jia Wang , Guangtao Zhai

Analyzing large-scale text corpora is a core challenge in machine learning, crucial for tasks like identifying undesirable model behaviors or biases in training data. Current methods often rely on costly LLM-based techniques (e.g.…

人工智能 · 计算机科学 2025-12-12 Nick Jiang , Xiaoqing Sun , Lisa Dunlap , Lewis Smith , Neel Nanda

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

We propose the Motion Capsule Autoencoder (MCAE), which addresses a key challenge in the unsupervised learning of motion representations: transformation invariance. MCAE models motion in a two-level hierarchy. In the lower level, a…

计算机视觉与模式识别 · 计算机科学 2021-10-04 Ziwei Xu , Xudong Shen , Yongkang Wong , Mohan S Kankanhalli

Recent advances in latent diffusion models have demonstrated their effectiveness for high-resolution image synthesis. However, the properties of the latent space from tokenizer for better learning and generation of diffusion models remain…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Hao Chen , Yujin Han , Fangyi Chen , Xiang Li , Yidong Wang , Jindong Wang , Ze Wang , Zicheng Liu , Difan Zou , Bhiksha Raj

Traditional transformer-based semantic segmentation relies on quantized embeddings. However, our analysis reveals that autoencoder accuracy on segmentation mask using quantized embeddings (e.g. VQ-VAE) is 8% lower than continuous-valued…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Masud Ahmed , Zahid Hasan , Syed Arefinul Haque , Abu Zaher Md Faridee , Sanjay Purushotham , Suya You , Nirmalya Roy

Medical vision-and-language pre-training provides a feasible solution to extract effective vision-and-language representations from medical images and texts. However, few studies have been dedicated to this field to facilitate medical…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Zhihong Chen , Yuhao Du , Jinpeng Hu , Yang Liu , Guanbin Li , Xiang Wan , Tsung-Hui Chang

Learning data representations that reflect the customers' creditworthiness can improve marketing campaigns, customer relationship management, data and process management or the credit risk assessment in retail banks. In this research, we…

机器学习 · 统计学 2019-03-18 Rogelio A Mancisidor , Michael Kampffmeyer , Kjersti Aas , Robert Jenssen

Self-supervised learning (SSL) has demonstrated remarkable success in 3D point cloud analysis, particularly through masked autoencoders (MAEs). However, existing MAE-based methods lack rotation invariance, leading to significant performance…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Xuanhua Yin , Dingxin Zhang , Jianhui Yu , Weidong Cai

Large, pretrained models are commonly finetuned with imagery that is heavily augmented to mimic different conditions and scales, with the resulting models used for various tasks with imagery from a range of spatial scales. Such models…

The central question in representation learning is what constitutes a good or meaningful representation. In this work we argue that if we consider data with inherent cluster structures, where clusters can be characterized through different…

Variational Autoencoders for multimodal data hold promise for many tasks in data analysis, such as representation learning, conditional generation, and imputation. Current architectures either share the encoder output, decoder input, or…