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相关论文: Robust Face Anti-Spoofing with Dual Probabilistic …

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Face Anti-Spoofing (FAS) is essential to secure face recognition systems and has been extensively studied in recent years. Although deep neural networks (DNNs) for the FAS task have achieved promising results in intra-dataset experiments…

计算机视觉与模式识别 · 计算机科学 2022-05-18 Rizhao Cai , Zhi Li , Renjie Wan , Haoliang Li , Yongjian Hu , Alex Chichung Kot

Supervised learning of deep neural networks heavily relies on large-scale datasets annotated by high-quality labels. In contrast, mislabeled samples can significantly degrade the generalization of models and result in memorizing samples,…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Tsung-Ming Tai , Yun-Jie Jhang , Wen-Jyi Hwang

Not all positive pairs are beneficial to time series contrastive learning. In this paper, we study two types of bad positive pairs that can impair the quality of time series representation learned through contrastive learning: the noisy…

机器学习 · 计算机科学 2024-03-29 Xiang Lan , Hanshu Yan , Shenda Hong , Mengling Feng

Large Language Models (LLMs) are widely used across many domains, but their scale makes deployment challenging. Post-Training Quantization (PTQ) reduces memory footprint without retraining by leveraging a small calibration set. Recent…

机器学习 · 计算机科学 2026-04-16 Jaemin Kim , Sungkyun Kim , Junyeol Lee , Jiwon Seo

The contemporary state-of-the-art of Dynamic Facial Expression Recognition (DFER) technology facilitates remarkable progress by deriving emotional mappings of facial expressions from video content, underpinned by training on voluminous…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Haoran Wang , Xinji Mai , Zeng Tao , Xuan Tong , Junxiong Lin , Yan Wang , Jiawen Yu , Boyang Wang , Shaoqi Yan , Qing Zhao , Ziheng Zhou , Shuyong Gao , Wenqiang Zhang

In this work, we study multi-domain learning for face anti-spoofing(MD-FAS), where a pre-trained FAS model needs to be updated to perform equally well on both source and target domains while only using target domain data for updating. We…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Xiao Guo , Yaojie Liu , Anil Jain , Xiaoming Liu

Denoising Diffusion Probabilistic Models (DDPMs) can generate high-quality samples such as image and audio samples. However, DDPMs require hundreds to thousands of iterations to produce final samples. Several prior works have successfully…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Luping Liu , Yi Ren , Zhijie Lin , Zhou Zhao

Diffusion Probabilistic Models (DPMs) have demonstrated substantial promise in image generation tasks but heavily rely on the availability of large amounts of training data. Previous works, like GANs, have tackled the limited data problem…

计算机视觉与模式识别 · 计算机科学 2023-08-24 Xiyu Wang , Baijiong Lin , Daochang Liu , Chang Xu

As the demand for highly secure and dependable lightweight systems increases in the modern world, Physically Unclonable Functions (PUFs) continue to promise a lightweight alternative to high-cost encryption techniques and secure key…

密码学与安全 · 计算机科学 2022-07-12 Owen Millwood , Jack Miskelly , Bohao Yang , Prosanta Gope , Elif Kavun , Chenghua Lin

Training Deep neural networks (DNNs) on noisy labeled datasets is a challenging problem, because learning on mislabeled examples deteriorates the performance of the network. As the ground truth availability is limited with real-world noisy…

机器学习 · 计算机科学 2021-05-25 Sree Ram Kamabattula , Kumudha Musini , Babak Namazi , Ganesh Sankaranarayanan , Venkat Devarajan

In this work, we address the challenge of multi-task image generation with limited data for denoising diffusion probabilistic models (DDPM), a class of generative models that produce high-quality images by reversing a noisy diffusion…

机器学习 · 计算机科学 2023-11-29 Delaram Pirhayatifard , Mohammad Taha Toghani , Guha Balakrishnan , César A. Uribe

Learning with Noisy Labels (LNL) aims to improve the model generalization when facing data with noisy labels, and existing methods generally assume that noisy labels come from known classes, called closed-set noise. However, in real-world…

机器学习 · 计算机科学 2025-01-22 Linchao Pan , Can Gao , Jie Zhou , Jinbao Wang

It can be challenging to identify brain MRI anomalies using supervised deep-learning techniques due to anatomical heterogeneity and the requirement for pixel-level labeling. Unsupervised anomaly detection approaches provide an alternative…

图像与视频处理 · 电气工程与系统科学 2023-08-30 Hasan Iqbal , Umar Khalid , Jing Hua , Chen Chen

Face anti-spoofing (FAS) plays a vital role in preventing face recognition (FR) systems from presentation attacks. Nowadays, FAS systems face the challenge of domain shift, impacting the generalization performance of existing FAS methods.…

计算机视觉与模式识别 · 计算机科学 2024-09-16 Xinxu Ge , Xin Liu , Zitong Yu , Jingang Shi , Chun Qi , Jie Li , Heikki Kälviäinen

The rising performance of deep neural networks is often empirically attributed to an increase in the available computational power, which allows complex models to be trained upon large amounts of annotated data. However, increased model…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Gauthier Tallec , Edouard Yvinec , Arnaud Dapogny , Kevin Bailly

This paper is concerned with the online estimation of a nonlinear dynamic system from a series of noisy measurements. The focus is on cases wherein outliers are present in-between normal noises. We assume that the outliers follow an unknown…

统计计算 · 统计学 2019-05-14 Bin Liu

Denoising diffusion probabilistic models (DDPM) are a class of generative models which have recently been shown to produce excellent samples. We show that with a few simple modifications, DDPMs can also achieve competitive log-likelihoods…

机器学习 · 计算机科学 2021-02-22 Alex Nichol , Prafulla Dhariwal

Diffusion Probabilistic Models stand as a critical tool in generative modelling, enabling the generation of complex data distributions. This family of generative models yields record-breaking performance in tasks such as image synthesis,…

Label noise in datasets could significantly damage the performance and robustness of deep neural networks (DNNs) trained on these datasets. As the size of modern DNNs grows, there is a growing demand for automated tools for detecting such…

机器学习 · 计算机科学 2025-10-28 Dang Huu-Tien , Minh-Phuong Nguyen , Naoya Inoue

Despite the recent visually-pleasing results achieved, the massive computational cost has been a long-standing flaw for diffusion probabilistic models (DPMs), which, in turn, greatly limits their applications on resource-limited platforms.…

计算机视觉与模式识别 · 计算机科学 2022-12-01 Xingyi Yang , Daquan Zhou , Jiashi Feng , Xinchao Wang